6403_NashLCID_S&ECplan_20200713

APPENDIX A. EROSION & SEDIMENT CONTROL PLAN

NASH COUNTY
LAND CLEARING AND INERT DEBRIS (LCID) LANDFILL
PERMIT TO CONSTRUCT APPLICATION
EROSION & SEDIMENT CONTROL PLAN
FOR
LAND DISTURBANCE ACTIVITIES
AT THE
NASH COUNTY LCID LANDFILL
PREPARED BY:
Gj�&UTTnAfMOORS
Engineering for the Power and Waste Industries
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206 High House Road, Suite 259, Cary, North Carolina 27513 • 0: 919-792-1900 -
F: 866-311-7206

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NASH COUNTY LCID LANDFILL
E&SC PLAN
CONTENTS
1.0 LOCATION INFORMATION................................................................................................ 1
1.1 PROJECT LOCATION & LABELED VICINITY MAP ........................................................ 1
1.2 RIVER BASIN AND FLOODPLAINS................................................................................ 1
2.0 NARRATIVE........................................................................................................................ 1
2.1 PROJECT DESCRIPTION............................................................................................... 1
2.2 TOTAL DISTURBED ACREAGE..................................................................................... 1
2.3 SITE DESCRIPTION........................................................................................................ 1
2.4 DESIGN & PERFORMANCE STANDARDS.................................................................... 2
2.4.1 PRE -CONSTRUCTION CONDITIONS...................................................................... 2
2.4.2 POST -CONSTRUCTION CONDITIONS................................................................... 3
2.5 PLANNED EROSION & SEDIMENT CONTROL PRACTICES ........................................ 3
2.5.1 LAND GRADING - PRACTICE 6.02......................................................................... 3
2.5.2 SURFACE ROUGHENING - PRACTICE 6.03.......................................................... 3
2.5.3 TEMPORARY SEEDING - PRACTICE 6.10............................................................. 3
2.5.4 PERMANENT SEEDING - PRACTICE 6.11............................................................. 4
2.5.5 SILT FENCE - PRACTICE 6.62................................................................................ 4
2.5.6 GRASS -LINED DITCHES - PRACTICE 6.30............................................................ 4
2.5.7 SKIMMER SEDIMENT BASIN - PRACTICE 6.64..................................................... 4
2.5.8 OUTLET STABILIZATION STRUCTURE - PRACTICE 6.41.................................... 4
2.5.9 ROLLED EROSION CONTROL PRODUCTS - PRACTICE 6.17 ............................. 4
2.5.10 POROUS BAFFLES................................................................................................ 4
3.0 SITE DRAINAGE FEATURES............................................................................................. 5
4.0 CONSTRUCTION SEQUENCE........................................................................................... 5
5.0 MAINTENANCE PLAN........................................................................................................ 5
6.0 VEGETATIVE PLAN............................................................................................................ 5
6.1 SEEDING SPECIFICATIONS & SCHEDULES................................................................ 5
6.2 SOIL AMENDMENTS...................................................................................................... 6
6.3 MULCH............................................................................................................................ 6
6.4 MAINTENANCE............................................................................................................... 6

NASH COUNTY LCID LANDFILL
E&SC PLAN 12019
7.0 SPECIFICATIONS............................................................................................................... 6
7.1 SILT FENCE (ALSO SEDIMENT FENCE)....................................................................... 6
7.2 LAND GRADING.............................................................................................................. 7
7.3 SURFACE ROUGHENING.............................................................................................. 8
7.4 GRASS -LINED DITCHES................................................................................................ 8
7.5 SKIMMER SEDIMENT BASIN......................................................................................... 9
7.6 OUTLET STABILIZATION STRUCTURES....................................................................
11
7.7 ROLLED EROSION CONTROL PRODUCTS................................................................
12
7.8 POROUS BAFFLES......................................................................................................
14
FIGURES................................................................................................................................... A
APPENDIX A. REFERENCE DOCUMENTS.......................................................................... A
APPENDIX B. DESIGN CALCULATIONS.............................................................................. B
APPENDIX C. ENGINEERING DRAWINGS (SEE SOLID WASTE PERMIT TO
CONSTRUCT DRAWINGS DATED AUGUST, 2019)...............................................................0

NASH COUNTY LCID LANDFILL E&SC PLAN 12019
1.0 LOCATION INFORMATION
1.1 PROJECT LOCATION & LABELED VICINITY MAP
The Nash County Landfill is located approximately seven miles north of Nashville, North
Carolina. Specifically, the facility entrance is located at 3057 Duke Road, approximately 1
mile west of the intersection of Duke Road and NC Highway 1004 (Taylor Store Road). The
proposed Land Clearing and Inert Debris (LCID) Landfill is located in a currently inactive
portion of the landfill property.
A vicinity map is presented on Figure 1 at the end of this report.
A copy of the deed for the parcel is in included in Appendix A — Reference Documents.
1.2 RIVER BASIN AND FLOODPLAINS
This project occurs in the Tar -Pamlico River Basin. A discussion of Tar -Pamlico Buffer
requirements is included in Appendix A.
2.0 NARRATIVE
2.1 PROJECT DESCRIPTION
The Nash County LCID Landfill Project provides Nash County with a permanent disposal
solution for land clearing and inert debris. The Phases of the project generally consist of the
following.
1) Phase 1 — Stormwater detention basin, stormwater drainage, 6.5 acre Phase 1 LCID
Landfill base grades.
2) Phase 2 — 4.4 acre Phase 2 LCID Landfill base grades.
Storm water runoff within the proposed limits of disturbance will be directed across the site
via sheet flow, temporary measures, proposed storm water ditches and ponds. All disturbed
areas will flow toward BMPs as shown on the Engineering Drawings.
2.2 TOTAL DISTURBED ACREAGE
The total disturbed area will be approximately 15.1 acres as determined by area takeoff of
the engineering drawings.
2.3 SITE DESCRIPTION
The Nash County LCID Landfill will serve the commercial generators of Land Clearing and
Inert Debris waste in Nash County, North Carolina.
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E&SC PLAN 12019
The existing natural topography in the project vicinity varies in elevation from approximately
225 feet Mean Sea Level (MSL) in the west to 195 feet MSL to the east. The proposed LCID
landfill is located in a former borrow area used for landfill closure activities in the late 1990's.
Since termination of borrow activity, the area has been maintained by mowing annually.
Stormwater infrastructure associated with the former borrow area exists in the form of a berm
and ditches and sediment trap. Any remaining stormwater infrastructure is insufficient for
use and will be replaced with new BMPs as described herein.
On -site surface drainage is generally west to the east. The land immediately adjacent to the
proposed land disturbance area is bordered on the north, east and south by forested land,
including an unnamed drainage feature to the north and Pigbasket Creek to the east.
The project site occurs on FEMA FIRM 3710955400J, Panel 370328 (effective date October
3, 2006) and FEMA FIRM 3720288200J, Panel 370278 (effective date November 3, 2004).
The 100-year floodplain does not occur in the project area. A copy of the referenced FIRMs
is included in Appendix A.
A layout of the facility, including the area proposed for land disturbance activities, is included
on the Engineering Drawings.
2.4 DESIGN & PERFORMANCE STANDARDS
Erosion and sedimentation control measures, structures, and devices are designed for the
following:
• 2-yr, 24-hour post -developed discharge does not exceed pre -development discharge;
• 10-yr, 24-hour post -developed discharge does not exceed pre -development
discharge;
• Permanent features are designed to manage 25-yr, 24-hour discharge in accordance
with North Carolina Solid Waste Rules.
The erosion and sedimentation control measures and permanent stormwater management
structures were designed using the guidelines presented in the North Carolina Erosion and
Sediment Control Planning and Design Manual.
2.4.1 PRE -CONSTRUCTION CONDITIONS
Pre -construction runoff conditions at the facility are characterized by areas currently
served by existing ditches and a sediment trap.
LCID Landfill Operational Area
The exiting conditions of the Phase 1 &2 Operational Areas are characterized by being an
open field of scrub vegetation. The operational area currently drains via two grass lined
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storm water ditches from west to east and deposits to an existing system of BMPs
including a ditch/berm and sediment basin. The sediment basin discharges west of
Pigbasket Creek. Existing BMPs have exceeded their useful life, and will be replaced with
the development of the LCID Landfill.
A pre -development drainage area map and discharge table is presented in Figure 2 at
the end of this report.
2.4.2 POST -CONSTRUCTION CONDITIONS
Post -construction runoff at the facility will consist of the following general areas:
LCID Landfill Operational Area
The Phase 1 &2 Operational Area will be utilized for future Land Clearing and Inert Debris
disposal. Stormwater runoff will be directed to a newly constructed perimeter ditch and
proposed Sediment Pond. The Sediment Pond consists of a skimmer low-level outlet,
concrete riser primary outlet, and emergency spillway. None of the proposed features
will occur within the adjacent wetlands or Tar -Pamlico River Basin Buffers
A post -development drainage area map and discharge table is presented on Figure 3 at
the end of this report.
2.5 PLANNED EROSION & SEDIMENT CONTROL PRACTICES
Erosion and sediment control measures are shown on detail sheets in the engineering
drawings. In addition, the following practices will be employed on the project.
2.5.1 LAND GRADING - PRACTICE 6.02
The proposed design of the operation will require grading (cut/fill) of the current non -active
area to provide storage capacity for the designed cells, ditches and ponds. Grading
operations will be performed within the project area to the approximate grades indicated.
2.5.2 SURFACE ROUGHENING - PRACTICE 6.03
Disturbed areas will be slightly roughened by disking immediately prior to vegetating.
2.5.3 TEMPORARY SEEDING - PRACTICE 6.10
Temporary surface stabilization will be accomplished with temporary vegetation and will
be used to control runoff and erosion for the temporary sediment basin until permanent
vegetation can be established.
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2.5.4 PERMANENT SEEDING - PRACTICE 6.11
Surface stabilization will be accomplished with permanent vegetation and will be used for
all disturbed soil areas upon final grading.
2.5.5 SILT FENCE - PRACTICE 6.62
Sediment fence will be installed in locations shown on the Engineering Drawings.
Sediment fence will not be placed such that flow from proposed stormwater outfalls will
be obstructed.
2.5.6 GRASS -LINED DITCHES - PRACTICE 6.30
Grass -lined ditches will be installed where shown on the Drawings and according to the
appropriate details. Meaning, ditches with flows with a velocity less than 5 ft/sec and/or a
shear stress less than 2.25 Ib/ft^2 will be lined with Grass to ensure erosion control.
Grass -lined channel design is presented in Appendix B. As an alternate see Rolled
Erosion Control Products.
2.5.7 SKIMMER SEDIMENT BASIN - PRACTICE 6.64
The Sediment Pond is designed as a Skimmer Sediment Basin will be installed to manage
runoff from the new phase 1 &2 operational areas. Grading and details are shown on the
Drawings. Skimmer Sediment Basin design calculations are presented in Appendix B.
2.5.8 OUTLET STABILIZATION STRUCTURE - PRACTICE 6.41
Outlet stabilization structures, in the form of energy dissipaters shown in the drawing, will
be placed at the outlet of all newly installed pipes per the details shown on the Drawings.
Outlet stabilization structure design is presented in Appendix B.
2.5.9 ROLLED EROSION CONTROL PRODUCTS - PRACTICE 6.17
Rolled erosion control matting will be installed in locations shown on the Drawings.
Generally, erosion control matting will be installed in grass -lined channels to facilitate
establishment of permanent vegetation.
2.5.10 POROUS BAFFLES
Porous baffles are shown in plan view on the Engineering Drawings, with additional
details and specifications provided.
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3.0 SITE DRAINAGE FEATURES
There are several site drainage features around the proposed phase 1 &2 operational areas.
Those site drainage features include: Pig Basket Creek tributaries to the north and east, and a
storm water pond to the south.
4.0 CONSTRUCTION SEQUENCE
The Construction Sequence is shown on the Drawings.
5.0 MAINTENANCE PLAN
Check erosion and sediment control devices after each rainfall. Remove sediment and restore
original volume when sediment accumulates to about one-half the design volume. Check the
structures for erosion, and rock displacement after each significant rainstorm and repair
immediately.
Inspect sediment fences at least once a week and after each rainfall. Make any required repairs
immediately.
Generally, a stand of vegetation cannot be determined to be fully established until soil cover has
been maintained for one full year from planting. Inspect seeded areas for failure and make
necessary repairs and reseedings with the same season, if possible.
Periodically check all graded areas and the supporting erosion and sedimentation control
practices, especially after heavy rainfalls. Promptly remove all sediment from diversions or other
water -disposal practices. If washouts or breaks occur, repair them immediately.
Additional detail for maintenance requirements is provided in the specifications for each practice
listed in Section 7 of this report.
6.0 VEGETATIVE PLAN
6.1 SEEDING SPECIFICATIONS & SCHEDULES
Temporary seeding will be used to temporarily stabilize areas until permanent vegetation or
other erosion control measures can be established.
Areas to be stabilized with permanent vegetation will be seeded or planted within 14 calendar
days after final grade is reached.
Permanently seeded areas will be vegetated according to the detail presented on the
Drawings as required by NPDES Construction Stormwater General Permit NCG010000.
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6.2 SOIL AMENDMENTS
Soil amendments should be applied as specified in the applicable seeding mixture (above).
Alternately, soil may be amended according to recommendations made in a NCDA Soil Test
Report for soil samples obtained at the site.
6.3 MULCH
Suitable mulch should be provided and applied as specified in the applicable seeding
mixture.
6.4 MAINTENANCE
Re -fertilize in the second year unless growth is fully adequate. May be mowed once or twice
a year, but mowing is not necessary. Reseed, fertilize, and mulch damaged areas
immediately.
7.0 SPECIFICATIONS
7.1 SILT FENCE (ALSO SEDIMENT FENCE)
Materials
1) Use a synthetic filter fabric or a pervious sheet of polypropylene, nylon, polyester, or
polyethylene yarn, which is certified by the manufacturer or supplier as conforming to
the requirements shown in Table 6.62b of the North Carolina Erosion and Sediment
Control Planning and Design Manual.
2) Ensure that posts for silt fences are 1.25 lb/If steel with a minimum length of 5 ft. Make
sure that steel posts have projections to facilitate fastening the fabric.
3) For reinforcement of standard strength filter fabric, use wire fence with a minimum 14
gauge and a maximum mesh spacing of 6 inches.
Construction
1) Construct the sediment barrier of standard strength synthetic filter fabric.
2) Ensure that the height of the silt fence does not exceed 24 inches above the ground
surface.
3) Construct the filter fabric from a continuous roll cut to the length of the barrier to avoid
joints. When joints are necessary, securely fasten the filter cloth only at a support
post with overlap to the next post.
4) Support standard strength filter fabric by wire mesh fastened securely to the upslope
side of the posts. Extend the wire mesh support to the bottom of the trench. Fasten
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the wire reinforcement, then fabric on the upslope side of the fence post. Wire or
plastic zip ties should have minimum 50 lb tensile strength.
5) When a wire mesh support fence is used, space posts a maximum of 8 feet apart.
Support posts should be driven securely into the ground a minimum of 24 inches.
6) Extra strength filter fabric with 6 feet post spacing does not require wire mesh support
fence. Securely fasten the filter fabric directly to posts. Wire or plastic Zip ties should
have minimum 50 pound tensile strength.
7) Excavate a trench approximately 4 inches wide and 8 inches deep along the proposed
line of posts and upslope from the barrier.
8) Place 12 inches of the fabric along the bottom and side of the trench.
9) Backfill the trench with compacted soil or gravel placed over the filter fabric.
10)Do not attach filter fabric to existing trees.
7.2 LAND GRADING
1) Construct and maintain all erosion and sedimentation control practices and measures
in accordance with the approved sedimentation control plan and construction
schedule.
2) As conditions merit, remove good topsoil from areas to be graded and filled, and
preserve it for use in finishing the grading of all critical areas.
3) Scarify areas to be top -soiled to a minimum depth of 2 inches before placing topsoil
4) Clear and grub areas to be filled to remove trees, vegetation, roots, or other
objectionable material that would affect the planned stability of the fill.
5) Ensure that fill material is free of brush, rubbish, rocks, logs, stumps, building debris,
and other materials inappropriate for constructing stable fills.
6) Place all fill in layers not to exceed 9 inches in thickness, and compact the layers as
required to reduce erosion, slippage, settlement, or other related problems.
7) Do not incorporate frozen material or soft, mucky, or highly compressible materials
into fill slopes.
8) Do not place fill on a frozen foundation, due to possible subsidence and slippage.
9) Keep diversions and other water conveyance measures free of sediment during all
phases of development.
10)Handle seeps or springs encountered during construction in accordance with
approved methods.
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11)Permanently stabilize all graded areas immediately after final grading is completed on
each area in the grading plan. Apply temporary stabilization measures on all graded
areas when work is to be interrupted or delayed 30 working days or longer.
12)Show topsoil stockpiles, borrow areas, and spoil areas on the plans, and make sure
they are adequately protected from erosion. Include final stabilization of these areas
in the plan.
7.3 SURFACE ROUGHENING
1) Roughen fill areas and areas to be seeded to shallow grooves by normal tilling,
disking, harrowing, or use of a cultipacker/seeder.
2) Make grooves formed by such implements close together (less than 10 inches) and
not less than 1 inch deep.
3) If tracked machinery is used, limit roughening to sandy soils to avoid undue
compaction of the soil surface. Operate tracked machinery up and down the slope to
leave horizontal depressions in the soil. Do not back -blade during the final grading
operation.
7.4 GRASS -LINED DITCHES
Specifications:
1) Remove all trees, brush, stumps, and other objectionable material from the foundation
area, and dispose of properly.
2) Excavate the channel, and shape it to neat lines and dimensions shown on the plans
plus a 0.2-foot overcut around the channel perimeter to allow for bulking during
seedbed preparations and sod buildup.
3) Remove and properly dispose of all excess soil so that surface water may enter the
channel freely.
4) The procedure used to establish grass in the channel will depend upon the severity of
the conditions and selection of species. Protect the channel with mulch or a temporary
liner sufficient to withstand anticipated velocities during the establishment period.
Maintenance:
During the establishment period, check grass -lined channels after every rainfall. After grass
is established, periodically check the channel; check it after every heavy rainfall event.
Immediately make repairs. It is particularly important to check the channel outlet and all road
crossings for bank stability and evidence of piping or scour holes. Remove all significant
sediment accumulations to maintain the designed carrying capacity. Keep the grass in a
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E&SC PLAN 12019
healthy, vigorous condition at all times, since it is the primary erosion protection for the
channel (Practice 6.11, Permanent Seeding).
7.5 SKIMMER SEDIMENT BASIN
Specifications:
1) Clear, grub, and strip the area under the embankment of all vegetation and root mat.
Remove all surface soil containing high amounts of organic matter and stockpile or
dispose of it properly. Haul all objectionable material to the designated disposal area.
Place temporary sediment control measures below basin as needed.
2) Ensure that all material for the embankment is free of roots, woody vegetation, organic
matter, and other objectionable material. Place the all in lifts not to exceed 9 inches,
and machine compact it. Over all the embankment 6 inches to allow for settlement.
3) Shape the basin to the specified dimensions. Prevent the skimming device from
settling into the mud by excavating a shallow pit under the skimmer or providing a low
support under the skimmer of stone or timber.
4) Place the barrel (typically 4-inch Schedule 40 PVC pipe) on a firm, smooth foundation
of impervious soil. Do not use pervious material such as sand, gravel, or crushed
stone as backfill around the pipe. Place the all material around the pipe spillway in 4-
inch layers and compact it under and around the pipe to at least the same density as
the adjacent embankment. Care must be taken not to raise the pipe from the firm
contact with its foundation when compacting under the pipe haunches. Place a
minimum depth of 2 feet of compacted backfill over the pipe spillway before crossing
it with construction equipment. In no case should the pipe conduit be installed by
cutting a trench through the dam after the embankment is complete.
5) Assemble the skimmer following the manufacturer's instructions, or as designed.
6) Lay the assembled skimmer on the bottom of the basin with the flexible joint at the
inlet of the barrel pipe. Attach the flexible joint to the barrel pipe and position the
skimmer over the excavated pit or support. Be sure to attach a rope to the skimmer
and anchor it to the side of the basin. This will be used to pull the skimmer to the side
for maintenance.
7) Earthen spillways — Install the spillway in undisturbed soil to the greatest extent
possible. The achievement of planned elevations, grade, design width, and entrance
and exit channel slopes are critical to the successful operation of the spillway. The
spillway should be lined with laminated plastic or impermeable geotextile fabric. The
fabric must be wide and long enough to cover the bottom and sides and extend onto
the top of the dam for anchoring in a trench. The edges may be secured with 8-inch
staples or pins. The fabric must be long enough to extend down the slope and exit
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E&SC PLAN 12019
onto stable ground. The width of the fabric must be one piece, not joined or spliced;
otherwise water can get under the fabric. If the length of the fabric is insufficient for
the entire length of the spillway, multiple sections, spanning the complete width, may
be used. The upper section(s) should overlap the lower section(s) so that water
cannot flow under the fabric. Secure the upper edge and sides of the fabric in a trench
with staples or pins. (Adapted from "A Manual for Designing, Installing and Maintaining
Skimmer Sediment Basins." February, 1999. J. W. Faircloth & Son.).
8) Inlets —Discharge water into the basin in a manner to prevent erosion. Use temporary
slope drains or diversions with outlet protection to divert sediment -laden water to the
upper end of the pool area to improve basin trap efficiency (References: Runoff
Control Measures and Outlet Protection).
9) Erosion control —Construct the structure so that the disturbed area is minimized.
Divert surface water away from bare areas. Complete the embankment before the
area is cleared. Stabilize the emergency spillway embankment and all other disturbed
areas above the crest of the principal spillway immediately after construction
(References: Surface Stabilization).
10)Install porous baffles as specified in Practice 6.65, Porous Baffles.
11)After all the sediment -producing areas have been permanently stabilized, remove the
structure and all the unstable sediment. Smooth the area to blend with the adjoining
areas and stabilize properly (References: Surface Stabilization).
Maintenance:
Inspect skimmer sediment basins at least weekly and after each significant (one-half inch or
greater) rainfall event and repair immediately. Remove sediment and restore the basin to its
original dimensions when sediment accumulates to one-half the height of the first baffle. Pull
the skimmer to one side so that the sediment underneath it can be excavated. Excavate the
sediment from the entire basin, not just around the skimmer or the first cell. Make sure
vegetation growing in the bottom of the basin does not hold down the skimmer.
Repair the baffles if they are damaged. Re -anchor the baffles if water is flowing underneath
or around them.
If the skimmer is clogged with trash and there is water in the basin, usually jerking on the
rope will make the skimmer bob up and down and dislodge the debris and restore flow. If
this does not work, pull the skimmer over to the side of the basin and remove the debris.
Also check the orifice inside the skimmer to see if it is clogged; if so remove the debris.
If the skimmer arm or barrel pipe is clogged, the orifice can be removed and the obstruction
cleared with a plumber's snake or by flushing with water. Be sure and replace the orifice
before repositioning the skimmer.
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Check the fabric lined spillway for damage and make any required repairs with fabric that
spans the full width of the spillway. Check the embankment, spillways, and outlet for erosion
damage, and inspect the embankment for piping and settlement. Make all necessary repairs
immediately. Remove all trash and other debris from the skimmer and pool areas.
Freezing weather can result in ice forming in the basin. Some special precautions should be
taken in the winter to prevent the skimmer from plugging with ice.
7.6 OUTLET STABILIZATION STRUCTURES
Specifications:
1) Ensure that the subgrade for the filter and riprap follows the required lines and grades
shown in the plan. Compact any fill required in the subgrade to the density of the
surrounding undisturbed material. Low areas in the subgrade on undisturbed soil may
also be filled by increasing the riprap thickness. The riprap and gravel filte
must conform to the specifie grading limits shown on the plans.
2) The riprap and gravel filter must conform to the specified grading limits shown on the
plans.
3) Filter cloth, when used, must meet design requirements and be properly protected
from punching or tearing during installation. Repair any damage by removing the
riprap and placing another piece of filter cloth over the damaged area. All connecting
joints should overlap so the top layer is above the downstream layer a minimum of 1
foot. If the damage is extensive, replace the entire filter cloth.
4) Riprap may be placed by equipment, but take care to avoid damaging the filter.
5) The minimum thickness of the riprap should be 1.5 times the maximum stone
diameter.
6) Riprap may be field stone or rough quarry stone. It should be hard, angular, highly
weather -resistant and well graded.
7) Construct the apron on zero grade with no overfill at the end. Make the top of the
riprap at the downstream end level with the receiving area or slightly below it.
8) Ensure that the apron is properly aligned with the receiving stream and preferably
straight throughout its length. If a curve is needed to fit site conditions, place it in the
upper section of the apron.
9) Immediately after construction, stabilize all disturbed areas with vegetation
(Practices 6.10, Temporary Seeding, and 6.11, Permanent Seeding).
Maintenance:
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Inspect riprap outlet structures weekly and after significant (1/2 inch or greater) rainfall events
to see if any erosion around or below the riprap has taken place, or if stones have been
dislodged. Immediately make all needed repairs to prevent further damage.
7.7 ROLLED EROSION CONTROL PRODUCTS
Specifications:
1) Even if properly designed, if not properly installed, RECP's will probably not function
as desired. Proper installation is imperative. Even if properly installed, if not properly
timed and nourished, vegetation will probably not grow as desired. Proper
seed/vegetation selection is also imperative.
2) Grade the surface of installation areas so that the ground is smooth and loose. When
seeding prior to installation, follow the steps for seed bed preparation, soil
amendments, and seeding in Surface Stabilization, 6.1. All gullies, rills, and any other
disturbed areas must be fine graded prior to installation. Spread seed before RECP
installation. (Important: Remove all large rocks, dirt clods, stumps, roots, grass
clumps, trash, and other obstructions from the soil surface to allow for direct contact
between the soil surface and the RECP.)
3) Terminal anchor trenches are required at RECP ends and intermittent trenches must
be constructed across channels at 25-foot intervals. Terminal anchor trenches should
be a minimum of 12 inches in depth and 6 inches in width, while intermittent trenches
need be only 6 inches deep and 6 inches wide.
4) Installation for Slopes— Place the RECP 2-3 feet over the top of the slope and into an
excavated end trench measuring approximately 12 inches deep by 6 inches wide. Pin
the RECP at 1 foot intervals along the bottom of the trench, backfill, and compact.
Unroll the RECP down (or along) the slope maintaining direct contact between the soil
and the RECP. Overlap adjacent rolls a minimum of 3 inches. Pin the RECP to the
ground using staples or pins in a 3 foot center -to -center pattern. Less frequent
stapling/pinning is acceptable on moderate slopes.
5) Installation in Channels— Excavate terminal trenches (12 inches deep and 6 inches
wide) across the channel at the upper and lower end of the lined channel sections. At
25-foot intervals along the channel, anchor the RECP across the channel either in 6
inch by 6 inch trenches or by installing two closely spaced rows of anchors. Excavate
longitudinal trenches 6 inches deep and wide along channel edges (above water line)
in which to bury the outside RECP edges. Place the first RECP at the downstream
end of the channel. Place the end of the first RECP in the terminal trench and pin it
at 1 foot intervals along the bottom of the trench.
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Note: The RECP should be placed upside down in the trench with the roll on the
downstream side of the bench.
Once pinned and backfilled, the RECP is deployed by wrapping over the top of the
trench and unrolling upstream. If the channel is wider than the provided rolls, place
ends of adjacent rolls in the terminal trench, overlapping the adjacent rolls a minimum
of 3 inches. Pin at 1 foot intervals, backfill, and compact. Unroll the RECP in the
upstream direction until reaching the first intermittent trench. Fold the RECP back
over itself, positioning the roll on the downstream side of the trench, and allowing the
mat to conform to the trench.
Then pin the RECP (two layers) to the bottom of the trench, backfill, and compact.
Continue up the channel (wrapping over the top of the intermittent trench) repeating
this step at other intermittent trenches, until reaching the upper terminal trench.
At the upper terminal trench, allow the RECP to conform to the trench, secure with
pins or staples, backfill, compact and then bring the mat back over the top of the trench
and onto the existing mat (2 to 3 feet overlap in the downstream direction), and pin at
1 foot intervals across the RECP. When starting installation of a new roll, begin in a
trench or shingle -lap ends of rolls a minimum of 1 foot with upstream RECP on top to
prevent uplifting. Place the outside edges of the RECP(s) in longitudinal trenches,
pin, backfill, and compact.
6) Anchoring Devices-11 gauge, at least 6 inches length by 1 inch width staples or 12
inch minimum length wooden stakes are recommended for anchoring the RECP to
the ground.
Drive staples or pins so that the top of the staple or pin is flush with the ground surface.
Anchor each RECP every 3 feet along its center. Longitudinal overlaps must be
sufficient to accommodate a row of anchors and uniform along the entire length of
overlap and anchored every 3 feet along the overlap length. Roll ends may be spliced
by overlapping 1 foot (in the direction of water flow), with the upstream/upslope mat
placed on top of the down stream/downslope RECP. This overlap should be anchored
at 1 foot spacing across the RECP. When installing multiple width mats heat seamed
in the factory, all factory seams and field overlaps should be similarly anchored.
Maintenance:
1) Inspect Rolled Erosion Control Products at least weekly and after each significant (1/2
inch or greater) rain fall event repair immediately.
2) Good contact with the ground must be maintained, and erosion must not occur
beneath the RECP.
Page 13 of 15

NASH COUNTY LCID LANDFILL
E&SC PLAN 12019
3) Any areas of the RECP that are damaged or not in close contact with the ground shall
be repaired and stapled.
4) If erosion occurs due to poorly controlled drainage, the problem shall be fixed and the
eroded area protected.
5) Monitor and repair the RECP as necessary until ground cover is established.
7.8 POROUS BAFFLES
Specifications:
1) Grade the basin so that the bottom is level front to back and side to side.
2) Install the coir fiber baffles immediately upon excavation of the basin.
3) Install posts across the width of the sediment trap (Practice 6.62, Sediment Fence).
4) Steel posts should be driven to a depth of 24 inches and spaced a maximum of 4 feet
apart. The top of the fabric should be a minimum of 6 inches higher than the invert of the
spillway. Tops of baffles should be a minimum of 2 inches lower than the top of the
earthen embankment.
5) Install at least three rows of baffles between the inlet and outlet discharge point. Basins
less than 20 feet in length may use 2 baffles.
6) Attach a 9-gauge high tension wire strand to the steel posts at a height of 6 inches above
the spillway elevation with plastic ties or wire fasteners to prevent sagging. If the
temporary sediment basin will be converted to a permanent stormwater basin of a greater
depth, the baffle height should be based on the pool depth during use as a temporary
sediment basin.
7) Extend 9 gauge minimum high tension wire strand to side of basin or install steel T-posts
to anchor baffle to side of basin and secure to vertical end posts.
8) Drape the coir fiber mat over the wire strand mounted at a height of 6 inches above the
spillway elevation. Secure the coir fiber mat to the wire strand with plastic ties or wire
fasteners. Anchor the matting to the sides and floor of the basin with 12 inch wire staples,
approximately 1 ft apart, along the bottom and side slopes of the basin.
9) Do not splice the fabric, but use a continuous piece across the basin.
10)Adjustments may be required in the stable requirement to fit individual site conditions.
Maintenance:
Inspect baffles at least once a week and after each rainfall. Make any required repairs
immediately.
Page 14 of 15

NASH COUNTY LCID LANDFILL
E&SC PLAN 12019
Be sure to maintain access to the baffles. Should the fabric of a baffle collapse, tear,
decompose, or become ineffective, replace it promptly.
Remove sediment deposits when it reaches half full, to provide adequate storage volume for
the next rain and to reduce pressure on the baffles. Take care to avoid damaging the baffles
during cleanout, and replace if damaged during cleanout operations. Sediment depth should
never exceed half the designed storage depth.
After the contributing drainage area has been properly stabilized, remove all baffle materials
and unstable sediment deposits, bring the area to grade, and stabilize it.
Page 15 of 15

FIGURES

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& MOORE ® VICINITY MAP FIG
Engineering for the Power and Waste Industries

MAP LEGEND
DRAINAGE AREA
BOUNDARY
EXISTING NORM]
CONTOUR
EXISTING INDEX
CONTOUR
PRE -CONSTRUCTION
DRAINAGE PEAK Q2 PEAK Q10 PEAK Q25 PEAK Q100
OUTLET AREA (AC) (CFS) (CFS) (CFS) (CFS)
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MAP LEGEND
DRAINAGE AREA
BOUNDARY
EXISTING NORMAL
CONTOUR
EXISTING INDEX
CONTOUR
PROPOSED NORMAL
CONTOUR
PROPOSED INDEX
CONTOUR
POST -CONSTRUCTION
DRAINAGE PEAK Q2 PEAK Q10 PEAK Q25 PEAK Q100
OUTLET AREA (AC) (CFS) (CFS) (CFS) (CFS)
OUT-01 18.5 0.38 1.3 4.0 25.41
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APPENDIX A. REFERENCE DOCUMENTS

FINANCIAL RESPONSIBILITY/OWNERSHIP FORM
SEDIMENTATION POLLUTION CONTROL ACT
No person may initiate any land -disturbing activity on one or more acres as covered by the Act before this
form and an acceptable erosion and sedimentation control plan have been completed and approved by the
Land Quality Section, N.C. Department of Environment and Natural Resources. (Please type or print and, if
the question is not applicable or the e-mail and/or fax information unavailable, place N/A in the blank.)
Part A.
1. Project Name: Nash County LCID Landfill Permitting
2. Location of land -disturbing activity: County: Nash City or Township: Castalia
Highway/Street: Dukes Road Latitude: 36.061966' Longitude:-77.993296'
3. Approximate date land -disturbing activity will commence: December 1, 2019
4. Purpose of development (residential, commercial, industrial, institutional, etc.): Industrial
5. Total acreage disturbed or uncovered (including off -site borrow and waste areas): 13 acres
6. Amount of fee enclosed: $845. The application fee of $65.00 per acre (rounded
up to the next acre) is assessed without a ceiling amount (Example: a 9-acre application fee is $585).
7. Has an erosion and sediment control plan been filed? Yes No Enclosed X
8. Person to contact should erosion and sediment control issues arise during land -disturbing activity:
Name Craig Fortner, PE E-mail Address cfortner(c�aarrett-moore.com
Telephone [phone] Cell # [phone] Fax #
9. Landowner(s) of Record (attach accompanied page to list additional owners):
Name: Nash County Telephone: [phone] Fax Number: [phone]
Name: Nash County Telephone: [phone] Fax Number:
Current Mailing Address: 3057 Duke Road. P.O Box 849 Current Street Address:Same
Nashville, NC 27856
City State Zip
10. Deed Book No. 2856 Page No. 272-274 Provide a copy of the most current deed.
Part B.
1. Person(s) or firm(s) who are financially responsible for the land -disturbing activity (Provide a
comprehensive list of all responsible parties on an attached sheet):
Name: Nash County Email: NA
Current Mailing Address: 214 S. Barnes St. P.O Box 849 Current Street Address: Same
Nashville, NC, 27856
City, State Zip
Telephone: [phone] Fax Number: NA

2. (a) If the Financially Responsible Party is not a resident of North Carolina, give name and street address
of the designated North Carolina Agent:
Name: NA Email: NA
Current Mailing Address
City State Zip
Telephone: [phone]
Fax Number
Current Street Address
(b) If the Financially Responsible Party is a Partnership or other person engaging in business under an
assumed name, attach a copy of the Certificate of Assumed Name. If the Financially Responsible
Party is a Corporation, give name and street address of the Registered Agent:
Name of Registered Agent
Current Mailing Address
City
Telephone
E-mail Address
Current Street Address
State Zip City State Zip
Fax Number
The above information is true and correct to the best of my knowledge and belief and was provided
by me under oath (This form must be signed by the Financially Responsible Person if an individual
or his attorney -in -fact, or if not an individual, by an officer, director, partner, or registered agent with
the authority to execute instruments for the Financially Responsible Person). I agree to provide
corrected information should there be any change in the information provided herein.
Type or print name
Signature
Title or Authority
Date
, a Notary Public of the County of
State of North Carolina, hereby certify that appeared
personally before me this day and being duly sworn acknowledged that the above form was
executed by him.
Witness my hand and notarial seal, this day of 20
Seal
Notary
My commission expires

Fir
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1
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CALE 1" = 1,000- (1 : 12,000)
0 1000 2000
FEET
m L PANEL 2884J�
FIRM
FLOOD INSURANCE RATE MAP
NORTH CAROLINA
PANEL 2884
(SEE LOCATOR DIAGRAM OR MAP INDEX FOR FIRM
PANEL LAYOUT)
CONTAINS:
COMMUNITY NUMBER PANEL SUFFIX
NASH COUNTY 370278 2884 J
Notice to User: The Map Number shown below should be used
when placing map orders: the Community Number shown
above should be used on insurance applications for the subject
community.
EFFECTIVE DATE
MAP NUMBER
NOVEMBER 3,2004
3720288400J
c[N.
$�R
State of North
Carolina
Federal Emergency Management Agency
This is an official copy of a portion of the above referenced flood map. It
was extracted using F-MITOn-Line. This map does not reflect changes
or amendments which may have been made subsequent to the date on the
title block. For the latest product information about National Flood Insurance
Program flood maps check the FEMA Flood Map Store at www.msc.fema.gov

STATE OF NORTH CAROLINA FIRM PANEL LOCATOR DIAGRAM
relb
HALIFAX
CA
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. 7-11% J"Jif-11% I W K.
The projection used in the preparation of this map was the North Carolina
State Plane (FIPSZONE 3200). The horizontal datum was the North American
Datum of 1983, GRS80 ellipsoid. Differences in datum, ellipsoid, projection, or
Universal Transverse Mercator zones used in the production of FIRMs for adjacent
jurisdictions may result in slight positional differences in map features across
j u risd ictio n a I. bo u nd a ries. These d ifferences do not aff ect the accu ra cy of th is
FIRM. All coordinates on this map are in U.S. Survey Feet, where
1 U.S. Survey Foot = 1200/3937 Meters.
Flood elevations on this map are referenced to the North American Vertical
Datum of 1988 (NAVD 88). These flood elevations must be compared to structure
and ground elevations referenced to the same vertical datum. An average
offset between NAVID 88 and the National Geodetic Vertical Datum of 1929
(NGVID 29) has beer computed for each North Carolina county. This offset was
then applied to the NGVD 29 flood elevations that were not revised during the
creation of this statewide format FIRM. The offsets for each county shown on
this FIRM panel are shown in the vertical datum offset table below. Where a
county boundary and a flooding source with unrevised NGVD 29 flood elevations
are coincident, an individual offset has been calculated and applied during the
creation of this statewide format FIRM. See Section 6.1 of the accompanying
Flo od I nsu ra n ce Study report to obtai n f u rth er info rmati on o n th de co nversio n
of elevations between NAVID 88 and NIGVD 29. To obtain current elevation,
description, and/or location information for bench marks shown on this map,
please contact the North Carolina Geodetic Survey at the address shown below.
You may also contact the Information Services Branch of the National Geodetic
Su rvey at (301 ) 713 - 3242, o r visit their webs ite at www. n q s - noa a. q ov.
North Carolina Geodetic Survey County Average Vertical Datum Offset Table
121 West Jones Street CountV Vertical Datum Offset (ft)
Raleigh, NC 27601 Nash -1.02
[phone]
www.ncqs.state.nc.us
Example: NAVD 88 = NGVD 29 f (-1,02)
All streams listed in the Flood Hazard Data Table below were studied by
detafled methods using field survey. Otherflood hazard data shown on this
map may have been derived using either a coastal analysis or limited detailed
riverine analysis. More information on the flooding sources studied by these
analyses is contained in the Flood Insurance Study report.
78003'00' 78"02'00' JOINS PANEL 2884 2 295 000 FEET
713001'00' 77000'00'
2 280 000 FEET 766 1768 770 2 300 000 FEET
840 000 FEET
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2 280 000 FEET 7616 000 M 2 285 ODO FEET 768 JOINS PANEL 2880 770 OPOO M
78003'00' 78002'00' 78001'00' 77000'00'
820 000 FEET
2 300 000 FEET
NOTES TO USERS
This map is foruse in administering the National Flood Insurance Program, ltdoes not Certain areas not in Special Flood Hazard Areas may be protected by flood control This map reflects more detailed and up-to-date stream channel configurations than MAP REPOSITORY
necessarily identify all areas subject to flooding, particularly from local drainage sources structures. Refer to Section 4.4 "Flood Protection Measures" of the Flood Insurance those shown on the previous FIRM for -this jurisdiction. The floodplains and floodways Referto listing of Map Repositories on Map Index or visit www-ndloodmaps-com-
SWE v N RT4 of small size. The community map repository should be consulted for possible updated Study report for information on flood control structures in the jurisdictions. that were transferred from the previous FIRM may have been adjusted to conform to
or additional flood hazard information. these new stream channel configurations. As a result, the Flood Profiles and Floodway
Base map information and geospatial data used to develop this FIRM were obtained from Data tables in the Flood Insurance Study report (which contains authoritative hydraulic EFFECTIVE DATE OF FLOOD INSURANCE RATE MAP PANEL
-6 To obtain more detailed information in areas where Base Flood Elevations (BFEs) various organizations, including the participating local community(ies), state and federal data) may reflect stream channel distances that differ from what is shown on this map. NOVEMBER 3,2004
FEMM; COUPERA I ING 'HH1UALP-,H1NEH and/or f loodways have been determined, users are encouraged to consult the Flood agencies. and/or other sources. The primary base for this FIRM is aerial imagery acquired as
Profiles, Floodway Data and/or Summary of Stillwater Elevations tables contained within part of the National Digital Orthophoto Program. The time period of collection for the Please refer to the separately printed Map Index for an overview map of the county EFFECTIVE DATE(S)OF REVISION(S)TO THIS PANEL
the Flood Insurance Study (FIS) report that accompanies this FIRM. Users should be imagery is 1998-1999. Information and geospatial data supplied by the local community(ies) showing the layout of map panels, community map repository addresses, and a Listing of
awaro that BFEs shown on the FIRM represent rounded whole -foot elevations. These that met FEMA base map specifications were considered the preferred source for Communities table containing National Flood Insurance Program dates for each community
This digital Flood Insurance Rate Map (FIRM) was produced through a unique BFEs are Intended for flood insurance rating purposes only and should not be used development of the base map. See geospatial metadata for the associated digital FIRM as well as a listing of the panels on which each is located.
cooperative partnership between the State of North Carolina and the Federal as the sole source of flood elevation information. Accordingly, flood elevation data for additional information about base map preparation.
Emergency Management Agency (FEMA). The Stale of North Carolina has presented in the FIS report should be utilized in conjunction with the FIRM for purposes If you have questions about this map, or questions concerning the National Flood
implemented a long term approach of floodplain management to decrease of construction and/or floodplain management. Base map features shown or this map, such as corporate limits, are based on the I n su rance Pro g ram i n g en era[, pI ease ca I I I - 877 - FEMA MAP (1-87 7-336-2627) or vi s it the
the costs associated with flooding. This is demonstrated by the State's com- most up-to-date data available at the time of publication. Changes in the corporate FEMA website atwww.fema.gov. For community map revision history prior to statewide mapping, refer to the Community Map
mitment to map floodplain areas at the local level. As a part of this effort, the Boundaries of the f loodways were computed at cross sections and interpolated between limits may have occurred since this map was published. Map users should History table located in the Flood Insurance Study report for this jurisdiction.
State of North Carolina has joined in a Cooperating Technical Slate agreement cross sections. The floodways were based on hydraulic considerations with regard to consult the appropriate community official or website to verify current conditions of An accompanying Flood Insurance Study report. Letter of Map Revision (LOMR) or Letter
with FEMA to produce and maintain this digitaIFIRM. requirements of the National Flood Insurance Program. Floodway widths and other jurisdictional boundaries and base map features. of Map Amendment (LOMA) revising portions of this panel, and digital versions of this To determine if flood insurance is available in this community, contact your insurance agent, the
pertinent floodway data are provided in the Flood Insurance Study report for the jurisdictions. FIRM may be available. Visit the North Carolina Floodplain Mapping Program website North Carolina Division of Emergency Management or the National Flood Insurance Program at the
at wvvw.ncfloodmaps.com, or contact the FEMA Map Service Center at 1-800-358-9616 following phone numbers or websites:
www.ncfloodmaps.com for information on all related products associated with this FIRM. The FEMA Map Service NC Division of Emergency Management National Flood insurance Program
I Center may also be reached by Fax at 1-800-358-9620 and their website at www.fema.gov/msc. [phone] www.nfip.ncem.org 1-800-638-6620 www.fema.goVnfip
LEGEND
SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO
INUNDATION BY THE 1 % ANNUAL CHANCE FLOOD
The I % annual chance flood 000�year flood), also known as the base flood, is the flood
that has a 1 % chance of being equaled or exceeded in any given year. The Special
Flood Hazard Area is the area subject to flooding by the I% annual chance flood. Areas
of Special Flood Hazard include Zones A, AE, AH, AO, AR, A99, V, and VE. The Base
Flood Elevation is the water -surface elevation of the 1% annual chance flood.
ZONE A No Base Flood Elevations determined.
ZONE AE Base Flood Elevations determined.
ZONE AH Flood depths of I to 3 feet (usually areas of ponding); Base Flood
Elevations determined.
ZONE AO Flood depths of I to 3 feet (usually sheet flow on sloping terrain);
average depths determined. For areas of alluvial fan flooding, velocities
also determined.
ZONE AR Special Flood Hazard Area formerly protected from the 1% annual
chance flood by a flood control system that was subsequently
decertified. Zone AR indicates that the former flood control system is
being restored to provide protection from the 1% annual chance or
greater flood.
ZONE A99 Area to e protecte rn I annua c ance oo y a Fe era
flood protection system under construction; no Base Flood Elevations
determined.
ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevations
determined.
FLOODWAY AREAS IN ZONE AE
The floodway is the channel of a stream plus any adjacent floodplain areas that must be
keptfree of encroachment so that the 1% annual chance flood can be carried without
substantial increases in flood heights.
OTHER FLOOD AREAS
ZONE X Areas of 0.2 % a n n ual chance flood - areas of 1 % annual cha nce flood
with average depths of less than 1 foot or with drainage areas less than
I square mile- and areas protected by levees from 1 % annual chance
flood.
OTHER AREAS
ZONE X Areasdetermined to be ouWde the 0.2% annual chance floodplain.
ZONE D Areas in which flood hazards are undetermined, but possible.
E= COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS
OTHERWISE PROTECTED AREAS (OPAs)
CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas.
1% annual chance floodplain boundary
0.2% annual chance floodplain boundary
Floodway boundary
Zone D Boundary
CBRS and OPA boundary
F7 Boundary dividing Special Flood Hazard Areas of different
Base Flood Elevations, flood depths or flood velocities.
-513- Base Flood Elevation line and value; elevation in feet*
(EL 987) Base Flood Elevation value where uniform within zone;
elevation in feet'
*Referenced to the North American Vertical Datum of 1988
Cross section line
- - - - - - Transect line
Geographic coordinates referenced to the NorLh American
9 7 07- 30 32- 22' 3 0 Da of 1983 (NAID 83)
4276wOm 2000-meter Universal Transverse Mercator grid ticks, zone 17
1 477 500 FEET 5000-foot grid values: North Carolina State Plane coordinate
system (FIPSZONE 3200, State Plane NAL) 83 feet)
13MB510 North Carolina Geodetic Survey bench mark (see explanation
X in the Datum Information section of this FIRM panel).
BM5510 National Geodetic Survey bench mark (see explanation in
(2) the Datum Information section of this FIRM panel).
0 M1.5 River Mile
GRID NORTH
MAP SCALE I" = 1,000' (1 :12,000)
500 0 1000 200D
FEET
METERS
300 a 300 600
PANEL 2882J
FIRM
1M L
FLOOD INSURANCE RATE MAP
NORTH CAROLINA
PANEL 2882
(SEE LOCATOR DIAGRAM OR MAP INDEX FOR FIRM
PANEL LAYOUT)
CONTAINS:
COMMUNITY NUMBER PANEL SUFFIX
Im L
�r�
NASH COUNTY 370278 2882 1
QD
CD
lew
Notice to User: The Map Number shown below should be used
when placing rnap orders; the Community Number shown
ebiove should be used or insurance applicatiors for the subject
community
EFFECTIVE DATE MAP NUMBER
NOVEMBER 3, 2004 3720288200J
(HD
?ARRI,
N
State of North Carolina
Federal Emergency Management Agency

STATE OF NORTH CAROLINA FIRM PANEL LOCATOR DIAGRAM
FRANKL.IN
i 0 nlvj I n�
HALI FAX
1
f
DATUM INFORMATION
The projection used in the preparation of this map was the North Carolina
State Plane (FIPSZONE 3200). The horizontal datum was the North American
Datum of 1983, GRS80 ellipsoid. Differences in datum, ellipsoid, projection, or
Universal Transverse Mercator zones used in the production of FIRMs for adjacent
jurisdictions may result in slight positional differences in map features across
jurisdictional boundaries. These differences do not affect the accuracy of this
FIRM. All coordinates on this map are in U.S. Survey Feet, where
1 U.S. Survey Foot = 1200/3937 Meters.
Flood elevations on this map are referenced to the North American Vertical
Datum of 1988 (NAVD 88). These flood elevations must be compared to structure
and ground elevations referenced to the same vertical datum. An average
offset between NAVD 88 and the National Geodetic Vertical Datum of 1929
(NGVD 29) has been computed for each North Carolina county. This offset was
then applied to the NGVD 29 flood elevations that were not revised during the
creation of this statewide format FIRM. The offsets for each county shown on
this FIRM panel are shown in the vertical datum offset table below. Where a
county boundary and a flooding source with unrevised NGVD 29 flood elevations
are coincident, an individual offset has been calculated and applied during the
creation of this statewide format FIRM. See Section 6.1 of the accompanying
Flood Insurance Study report to obtain further information on the conversion
of elevations between NAVD 88 and NGVD 29. To obtain current elevation,
description, and/or location information for bench marks shown on this map,
please contact the North Carolina Geodetic Survey at the address shown below.
You may also contact the Information Services Branch of the National Geodetic
Survey at [phone], or visit their website at wwvv.ngs.noaa.gov.
North Carolina Geodetic Survey
121 West Jones Street
Raleigh, NC 27601
[phone]
www. negs. state. nc.0 s
County Average Vertical Datum Offset Table
County Vertical Datum Offset (ft)
Nash - 1.02
Example: NAVD 88 = NGVD 29 +
All streams listed in the Flood Hazard Data Table below were studied by
detailed methods using field survey. Other flood hazard data shown on this
map may have been derived using either a coastal analysis or limited detailed
riverine analysis. More information on the flooding sources studied by these
analyses is contained in the Flood Insurance Study report.
nVORTHCAROLINA
Ir
rerating TeAn cal StateLIP [ECHNICALPAWNER
This digital Flood Insurance Rate Map (FIRM) was produced through a unique
cooperative partnership between the State of North Carolina and the Federal
Emergency Management Agency (FEMA). The State of North Carolina has
implemented a long term approach of floodplain management to decrease
the icosts associated with flooding. is demonstrated b the State's com-
mitment Y
to map floodplain areas at the local level. As a part of this effort, the
State of North Carolina has joined in a Cooperating Technical Slate agreement t
with FEMA to produce and maintain this digital FIRM.
www.ncfloodmaps.com
78*03'00' 78002.00' JOINS PANEL 2886 2 295 00077°00'aa'
78 01.00'
2 28
860 000 FE
4000 00o M
36°06'00'
3998 OW M
36°05'0a'
3996 600 M
845 000 FE
36°04'00'
3994 000 M
a40 000 FEI
2 28v uvu rtti
78003'00' 78002'00' 78001'00' 77°00'00'
JOINS PANEL 2882
This map is for use in administering the National Flood Insurance Program. It does not
necessarily identify all areas subject to flooding, particularly from local drainage sources
of small size. The community map repository should be consulted for possible updated
or additional flood hazard information.
To obtain more detailed information in areas where Base Flood Elevations (BFEs)
and/or floodways have been determined, users are encouraged to consult the Flood
Profiles, Floodway Data and/or Summary of Stillwater Elevations tables contained within
the Flood Insurance Study (FIS) report that accompanies this FIRM. Users should be
aware that BFEs shown on the FIRM represent rounded whole -foot elevations. These
BFEs are intended for flood insurance rating purposes only and should not be used
as the sole source of flood elevation information. Accordingly, flood elevation data
presented in the FIS report should be utilized in conjunction with the FIRM for purposes
of construction and/or floodplain management.
Boundaries of the floodways were computed at cross sections and interpolated between
cross sections. The floodways were based on hydraulic considerations with regard to
requirements of the National Flood Insurance Program. Floodway widths and other
pertinent Floodway data are provided in the Flood Insurance Study report for the jurisdictions.
NOTES TO
Certain areas not in Special Flood Hazard Areas may be protected by flood control
structures. Refer to Section 4.4 "Flood Protection Measures" of the Flood Insurance
Study report for information on flood control structures in the jurisdictions.
Base map information and geospatial data used to develop this FIRM were obtained from
various organizations, including the participating local community(ies), state and federal
agencies, and/or other sources. The primary base for this FIRM is aerial imagery acquired as
part of the National Digital Orthophoto Program. The time period of collection for the
imagery is 1998A999. Information and geospatial data supplied by the local community(ies)
that met FEMA base map specifications were considered the preferred source for
development of the base map. See geospatial metadata for the associated digital FIRM
for additional information about base map preparation.
Base map features shown on this map, such as corporate limits, are based on the
most up-to-date data available at the time of publication. Changes in the corporate
limits may have occurred since this map was published. Map users should
consult the appropriate community official or website to verify current conditions of
jurisdictional boundaries and base map features.
USERS
This map reflects more detailed and up-to-date stream channel configurations than
those shown on the previous FIRM for this jurisdiction. The floodplains and floodways
that were transferred from the previous FIRM may have been adjusted to conform to
these new stream channel configurations. As a result, the Flood Profiles and Floodway
Data tables in the Flood Insurance Study report (which contains authoritative hydraulic
data) may reflect stream channel distances that differ from what is shown on this map.
Please refer to the separately printed Map Index for an overview map of the county
showing the layout of map panels; community map repository addresses; and a Listing of
Communities table containing National Flood Insurance Program dates for each community
as well as a listing of the panels on which each is located.
If you have questions about this map, or questions concerning the National Flood
Insurance Program in general, please call 1-877-FEMA MAP (1-877-336-2627) or visit the
FEMA website at www.fema.gov.
An accompanying Flood Insurance Study report, Letter of Map Revision (LOMR) or Letter
of Map Amendment (LOMA) revising portions of this panel, and digital versions of this
FIRM may be available. Visit the North Carolina Floodplain Mapping Program website
at wvvw.ncfloodmaps.com, or contact the FENA Map Service Center at 1-800-358-9616
for information on all related products associated with this FIRM. The FEMA Map Service
Center may also be reached by Fax at 1-800-358-9620 and their website at www.fema.gov/msc.
LEGEND
FEET
SPECIAL FLOOD HAZARD AREAS (SFHAs) SUBJECT TO
3 000 FEET
INUNDATION BY THE 1% ANNUAL CHANCE FLOOD
The 1 % annual chance flood 000-year flood), also known as the base flood, is the flood
that has a 1 % chance of being equaled or exceeded in any given year. The Special
Flood Hazard Area is the area subject to flooding by the 1 % annual chance flood. Areas
of Special Flood Hazard include Zones A, AE, AH, AO, AR, A99, V, and VE. The Base
4000Ow m
Flood Elevation is the water -surface elevation of the 1% annual chance flood.
ZONE A No Base Flood Elevations determined.
ZONE AE Base Flood Elevations determined.
ZONE AH Flood depths of 1 to 3 feet (usually areas of ponding); Base Flood
Elevations determined.
ZONE AO Flood depths of 1 to 3 feet (usually sheet flow on sloping terrain);
average depths determined. For areas of alluvial fan flooding, velocities
also determined.
ZONE AR Special Flood Hazard Area formerly protected from the 1% annual
chance flood by a flood control system that was subsequently
decertified. Zone AR indicates that the former flood control system is
being restored to provide protection from the 1% annual chance or
greater flood.
ZONE A99 Area to be protected from 1 % annual chance flood by a Federal
flood protection system under construction; no Base Flood Elevations
determined.
ZONE VE Coastal flood zone with velocity hazard (wave action); Base Flood Elevations
36006'00'
determined.
FLOODWAY AREAS IN ZONE AE
The floodway is the channel of a stream plus any adjacent floodplain areas that must be
kept free of encroachment so that the 1 % annual chance flood can be carried without
substantial increases in flood heights.
OTHER FLOOD AREAS
ZONE X Areas of 0.2% annual chance flood; areas of 1 % annual chance flood
with average depths of less than 1 foot or with drainage areas less than
1 square mile; and areas protected by levees from 1 % annual chance
flood.
i 000 FEET
OTHER AREAS
ZONE X Areas determined to be outside the 0.2% annual chance floodplain.
ZONE a Areas in which flood hazards are undetermined, but possible.
COASTAL BARRIER RESOURCES SYSTEM (CBRS) AREAS
OTHERWISE PROTECTED AREAS (OPAs)
CBRS areas and OPAs are normally located within or adjacent to Special Flood Hazard Areas.
1% annual chance floodplain boundary
0.2% annual chance floodplain boundary
— — — — Floodway boundary
3998 Ow m
- - Zone ❑ Boundary
■■■■•■■■■■■■•+••■■■■ CBRS and OPA boundary
- - - - - - - Boundary dividing Special Flood Hazard Areas of different
Base Flood Elevations, flood depths or flood velocities.
-, -, 513- Base Flood Elevation line and value; elevation in feet*
(EL 987) Base Flood Elevation value where uniform within zone;
elevation in feet"
*Referenced to the North American Vertical Datum of 1988
otx Cross section line
23 - - - - - - 23 Transect line
Geographic coordinates referenced to the North American
36°05'00'
97° 07' 3a" 32° 22' 30" Datum of 1983 (NAD 83)
4276wOm 2000-meter Universal Transverse Mercator grid ticks, zone 17
5000-foot grid values: North Carolina State Plane coordinate
1 477 500 FEET system (FIPSZONE 3200, State Plane NAD 83 feet)
13M5510 North Carolina Geodetic Survey bench mark (see explanation
X in the Datum Information section of this FIRM panel).
BM5510 National Geodetic Survey bench mark (see explanation in
0 the Datum Information section of this FIRM panel).
■ M1.5 River Mile
3996 000 m
36°04'00'
0 000 FEET
FEET
MAP REPOSITORY
Refer to listing of Map Repositories on Map Index or visit www.ncfloodmaps.com.
EFFECTIVE DATE OF FLOOD INSURANCE RATE MAP PANEL
NOVEMBER 3, 2004
EFFECTIVE DATES) OF REVISIONS) TO THIS PANEL
For community map revision history prior to statewide mapping, refer to the Community Map
History table located in the Flood insurance Study report for this jurisdiction.
To determine if flood insurance is available in this community, contact your insurance agent, the
North Carolina Division of Emergency Management or the National Flood Insurance Program at the
following phone numbers or websites:
NC Division of Emergency Management National Flood insurance Program
[phone] www.nfip.ncem.org 1-800-638-6620 www.fema.gov/nfip
Z&
GRID NORTH
MAP SCALE 1" = 1,000' (1 : 12,000)
500 0 1000 2000
I FEET
METERS
300 0 300 600
ID
PANEL 2884)
FIRM
FLOOD INSURANCE RATE MAP
>(—v-
NORTH CAROLINA
0
110"t
PANEL 2884
(SEE LOCATOR DIAGRAM OR MAP INDEX FOR FIRM
PANEL LAYOUT)
CONTAINS:
COMMUNITY NUMBER PANEL SUFFIX
NASH COUNTY 370278 2884 J
O
O
—
tv
Notice to User: The Map Number shown below should be used
when placing map orders; the Community Number shown
above should be used on insurance applications for the subject
community -
EFFECTIVE DATE MAP NUMBER
NOVEMBER 3, 2004 3720288400J
CC[D
VAWe. MIT,k
�1
L7
State of North Carolina
Federal Emergency Management Agency

USDA United States
Department of
Agriculture
N RCS
Natural
Resources
Conservation
Service
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Custom Soil Resource
Report for
Nash County,
North Carolina
July 9, 2019

Preface
Soil surveys contain information that affects land use planning in survey areas.
They highlight soil limitations that affect various land uses and provide information
about the properties of the soils in the survey areas. Soil surveys are designed for
many different users, including farmers, ranchers, foresters, agronomists, urban
planners, community officials, engineers, developers, builders, and home buyers.
Also, conservationists, teachers, students, and specialists in recreation, waste
disposal, and pollution control can use the surveys to help them understand,
protect, or enhance the environment.
Various land use regulations of Federal, State, and local governments may impose
special restrictions on land use or land treatment. Soil surveys identify soil
properties that are used in making various land use or land treatment decisions.
The information is intended to help the land users identify and reduce the effects of
soil limitations on various land uses. The landowner or user is responsible for
identifying and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning, onsite investigation is needed to supplement this information in some
cases. Examples include soil quality assessments (http://www.nres.usda.gov/wps/
portal/nres/main/soils/health/) and certain conservation and engineering
applications. For more detailed information, contact your local USDA Service Center
(https://offices.sc.egov.usda.gov/locator/app?agency=nres) or your NRCS State Soil
Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/?
cid=nres142p2_053951).
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads. Clayey or wet soils are poorly suited to use as
septic tank absorption fields. A high water table makes a soil poorly suited to
basements or underground installations.
The National Cooperative Soil Survey is a joint effort of the United States
Department of Agriculture and other Federal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Conservation Service (NRCS) has leadership for the Federal part of the National
Cooperative Soil Survey.
Information about soils is updated periodically. Updated information is available
through the NRCS Web Soil Survey, the site for official soil survey information.
The U.S. Department of Agriculture (USDA) prohibits discrimination in all its
programs and activities on the basis of race, color, national origin, age, disability,
and where applicable, sex, marital status, familial status, parental status, religion,
sexual orientation, genetic information, political beliefs, reprisal, or because all or a
part of an individual's income is derived from any public assistance program. (Not
all prohibited bases apply to all programs.) Persons with disabilities who require
2

alternative means for communication of program information (Braille, large print,
audiotape, etc.) should contact USDA's TARGET Center at [phone] (voice
and TDD). To file a complaint of discrimination, write to USDA, Director, Office of
Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or
call [phone] (voice) or [phone] (TDD). USDA is an equal opportunity
provider and employer.
3

Contents
Preface.................................................................................................................... 2
How Soil Surveys Are Made..................................................................................5
SoilMap.................................................................................................................. 8
SoilMap................................................................................................................9
Legend................................................................................................................10
MapUnit Legend................................................................................................ 11
MapUnit Descriptions.........................................................................................11
Nash County, North Carolina.......................................................................... 13
GeC—Georgeville loam, 6 to 10 percent slopes.........................................13
NrB—Norfolk, Georgeville, and Faceville soils, 2 to 8 percent slopes........ 14
RaA—Rains fine sandy loam, 0 to 2 percent slopes, Southern Coastal
Plain......................................................................................................16
W—Water....................................................................................................18
Wh—Wehadkee loam, 0 to 2 percent slopes, frequently flooded ............... 18
References............................................................................................................ 21
4

How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous
areas in a specific area. They include a description of the soils and miscellaneous
areas and their location on the landscape and tables that show soil properties and
limitations affecting various uses. Soil scientists observed the steepness, length,
and shape of the slopes; the general pattern of drainage; the kinds of crops and
native plants; and the kinds of bedrock. They observed and described many soil
profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The
profile extends from the surface down into the unconsolidated material in which the
soil formed or from the surface down to bedrock. The unconsolidated material is
devoid of roots and other living organisms and has not been changed by other
biological activity.
Currently, soils are mapped according to the boundaries of major land resource
areas (MLRAs). MLRAs are geographically associated land resource units that
share common characteristics related to physiography, geology, climate, water
resources, soils, biological resources, and land uses (USDA, 2006). Soil survey
areas typically consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that
is related to the geology, landforms, relief, climate, and natural vegetation of the
area. Each kind of soil and miscellaneous area is associated with a particular kind
of landform or with a segment of the landform. By observing the soils and
miscellaneous areas in the survey area and relating their position to specific
segments of the landform, a soil scientist develops a concept, or model, of how they
were formed. Thus, during mapping, this model enables the soil scientist to predict
with a considerable degree of accuracy the kind of soil or miscellaneous area at a
specific location on the landscape.
Commonly, individual soils on the landscape merge into one another as their
characteristics gradually change. To construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only
a limited number of soil profiles. Nevertheless, these observations, supplemented
by an understanding of the soil -vegetation -landscape relationship, are sufficient to
verify predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They
noted soil color, texture, size and shape of soil aggregates, kind and amount of rock
fragments, distribution of plant roots, reaction, and other features that enable them
to identify soils. After describing the soils in the survey area and determining their
properties, the soil scientists assigned the soils to taxonomic classes (units).
Taxonomic classes are concepts. Each taxonomic class has a set of soil
characteristics with precisely defined limits. The classes are used as a basis for
comparison to classify soils systematically. Soil taxonomy, the system of taxonomic
classification used in the United States, is based mainly on the kind and character
of soil properties and the arrangement of horizons within the profile. After the soil
5

Custom Soil Resource Report
scientists classified and named the soils in the survey area, they compared the
individual soils with similar soils in the same taxonomic class in other areas so that
they could confirm data and assemble additional data based on experience and
research.
The objective of soil mapping is not to delineate pure map unit components; the
objective is to separate the landscape into landforms or landform segments that
have similar use and management requirements. Each map unit is defined by a
unique combination of soil components and/or miscellaneous areas in predictable
proportions. Some components may be highly contrasting to the other components
of the map unit. The presence of minor components in a map unit in no way
diminishes the usefulness or accuracy of the data. The delineation of such
landforms and landform segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, onsite
investigation is needed to define and locate the soils and miscellaneous areas.
Soil scientists make many field observations in the process of producing a soil map.
The frequency of observation is dependent upon several factors, including scale of
mapping, intensity of mapping, design of map units, complexity of the landscape,
and experience of the soil scientist. Observations are made to test and refine the
soil -landscape model and predictions and to verify the classification of the soils at
specific locations. Once the soil -landscape model is refined, a significantly smaller
number of measurements of individual soil properties are made and recorded.
These measurements may include field measurements, such as those for color,
depth to bedrock, and texture, and laboratory measurements, such as those for
content of sand, silt, clay, salt, and other components. Properties of each soil
typically vary from one point to another across the landscape.
Observations for map unit components are aggregated to develop ranges of
characteristics for the components. The aggregated values are presented. Direct
measurements do not exist for every property presented for every map unit
component. Values for some properties are estimated from combinations of other
properties.
While a soil survey is in progress, samples of some of the soils in the area generally
are collected for laboratory analyses and for engineering tests. Soil scientists
interpret the data from these analyses and tests as well as the field -observed
characteristics and the soil properties to determine the expected behavior of the
soils under different uses. Interpretations for all of the soils are field tested through
observation of the soils in different uses and under different levels of management.
Some interpretations are modified to fit local conditions, and some new
interpretations are developed to meet local needs. Data are assembled from other
sources, such as research information, production records, and field experience of
specialists. For example, data on crop yields under defined levels of management
are assembled from farm records and from field or plot experiments on the same
kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on
such variables as climate and biological activity. Soil conditions are predictable over
long periods of time, but they are not predictable from year to year. For example,
soil scientists can predict with a fairly high degree of accuracy that a given soil will
have a high water table within certain depths in most years, but they cannot predict
that a high water table will always be at a specific level in the soil on a specific date.
After soil scientists located and identified the significant natural bodies of soil in the
survey area, they drew the boundaries of these bodies on aerial photographs and
0

Custom Soil Resource Report
identified each as a specific map unit. Aerial photographs show trees, buildings,
fields, roads, and rivers, all of which help in locating boundaries accurately.
7

Soil Map
The soil map section includes the soil map for the defined area of interest, a list of
soil map units on the map and extent of each map unit, and cartographic symbols
displayed on the map. Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
0

Custom Soil Resource Report
3 Soil Map
769780 769850 769M 769990
36° 321" N
I
36° 3' 2" N
769780 769850 769920 769M T70060
3
m
Map Scale: 1:3,000 W printed on A portrait (8.5" x 11") sheet
Meters N
0 40 80 160 240
Feet
0 100 200 400 600
Map projection: Web Mercator Comer coordinates: WGS84 Edge tics: UTM Zone 17N WGS84
9
77ODW
T70130
770130
3
b
b
Ik
770200
36' 321" N
36' 32" N
770200
3
0

MAP LEGEND
Area of Interest (AOI)
0
Area of Interest (AOI)
Soils
0
Soil Map Unit Polygons
im 0
Soil Map Unit Lines
■
Soil Map Unit Points
Special
Point Features
Blowout
Borrow Pit
Clay Spot
Closed Depression
Gravel Pit
.4
Gravelly Spot
0
Landfill
Lava Flow
Marsh or swamp
+
Mine or Quarry
Miscellaneous Water
Perennial Water
Rock Outcrop
Saline Spot
Sandy Spot
Severely Eroded Spot
Sinkhole
Slide or Slip
oa
Sodic Spot
Custom Soil Resource Report
MAP INFORMATION
A
Spoil Area
The soil surveys that comprise your AOI were mapped at
1:24,000.
Stony Spot
Very Stony Spot
Warning: Soil Map may not be valid at this scale.
Wet Spot
Enlargement of maps beyond the scale of mapping can cause
Other
misunderstanding of the detail of mapping and accuracy of soil
.-
Special Line Features
line placement. The maps do not show the small areas of
contrasting soils that could have been shown at a more detailed
Water Features
scale.
-
Streams and Canals
Transportation
Please rely on the bar scale on each map sheet for map
�}}
Rails
measurements.
Interstate Highways
Source of Map: Natural Resources Conservation Service
US Routes
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Major Roads
Local Roads
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
Background
distance and area. A projection that preserves area, such as the
Aerial Photography
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Nash County, North Carolina
Survey Area Data: Version 17, Sep 10, 2018
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Mar 15, 2016—Oct
26, 2017
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
10

Custom Soil Resource Report
Map Unit Legend
Map Unit Symbol
Map Unit Name
Acres in AOI
Percent of AOI
GeC
NrB
Georgeville loam, 6 to 10
percent slopes
2.3
16.0
10.4%
73.3%
Norfolk, Georgeville, and
Faceville soils, 2 to 8 percent
slopes
RaA
Rains fine sandy loam, 0 to 2
percent slopes, Southern
Coastal Plain
3.4
15.5%
W
Water
0.1
0.5%
Wh
Wehadkee loam, 0 to 2 percent
slopes, frequently flooded
0.1
0.3%
Totals for Area of Interest
21.9
100.0%
Map Unit Descriptions
The map units delineated on the detailed soil maps in a soil survey represent the
soils or miscellaneous areas in the survey area. The map unit descriptions, along
with the maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Within a taxonomic
class there are precisely defined limits for the properties of the soils. On the
landscape, however, the soils are natural phenomena, and they have the
characteristic variability of all natural phenomena. Thus, the range of some
observed properties may extend beyond the limits defined for a taxonomic class.
Areas of soils of a single taxonomic class rarely, if ever, can be mapped without
including areas of other taxonomic classes. Consequently, every map unit is made
up of the soils or miscellaneous areas for which it is named and some minor
components that belong to taxonomic classes other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. If included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
11

Custom Soil Resource Report
was impractical to make enough observations to identify all the soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objective of mapping is not to delineate
pure taxonomic classes but rather to separate the landscape into landforms or
landform segments that have similar use and management requirements. The
delineation of such segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, however,
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into soil phases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that affects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha -Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the major soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
Some surveys include miscellaneous areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
12

Custom Soil Resource Report
Nash County, North Carolina
GeC—Georgeville loam, 6 to 10 percent slopes
Map Unit Setting
National map unit symbol: 3gdd
Elevation: 200 to 1,400 feet
Mean annual precipitation: 37 to 60 inches
Mean annual air temperature: 59 to 66 degrees F
Frost -free period: 200 to 240 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Georgeville and similar soils: 90 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Georgeville
Setting
Landform: Hillslopes on ridges
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Linear
Across -slope shape: Convex
Parent material: Residuum weathered from metavolcanics and/or argillite
Typical profile
Ap - 0 to 8 inches: loam
Bt1 - 8 to 15 inches: clay loam
Bt2 - 15 to 45 inches: clay
BC - 45 to 80 inches: loam
Properties and qualities
Slope: 6 to 10 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Moderate (about 8.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3e
Hydrologic Soil Group: B
Hydric soil rating: No
Minor Components
Tatum, moderately eroded
Percent of map unit: 7 percent
Landform: Hillslopes on ridges
13

Custom Soil Resource Report
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Linear
Across -slope shape: Convex
Hydric soil rating: No
Lignum
Percent of map unit: 3 percent
Landform: Hillslopes on ridges
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Linear
Across -slope shape: Convex
Hydric soil rating: No
NrB—Norfolk, Georgeville, and Faceville soils, 2 to 8 percent slopes
Map Unit Setting
National map unit symbol: 3gdz
Elevation: 80 to 330 feet
Mean annual precipitation: 38 to 55 inches
Mean annual air temperature: 59 to 70 degrees F
Frost -free period: 210 to 265 days
Farmland classification: All areas are prime farmland
Map Unit Composition
Norfolk and similar soils: 45 percent
Georgeville and similar soils: 25 percent
Faceville and similar soils: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Norfolk
Setting
Landform: Ridges on marine terraces, broad interstream divides on marine
terraces
Landform position (two-dimensional): Shoulder, summit
Landform position (three-dimensional): Crest
Down -slope shape: Convex
Across -slope shape: Convex
Parent material: Loamy marine deposits
Typical profile
Ap - 0 to 9 inches: loamy sand
E - 9 to 14 inches: loamy sand
Bt - 14 to 70 inches: sandy clay loam
C - 70 to 100 inches: sandy clay loam
Properties and qualities
Slope: 2 to 8 percent
Depth to restrictive feature: More than 80 inches
14

Custom Soil Resource Report
Natural drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: About 40 to 72 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Moderate (about 7.6 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: A
Hydric soil rating: No
Description of Georgeville
Setting
Landform: Ridges
Down -slope shape: Convex
Across -slope shape: Convex
Parent material: Residuum weathered from metavolcanics and/or residuum
weathered from argillite
Typical profile
Ap - 0 to 8 inches: loam
Bt1 - 8 to 15 inches: clay loam
Bt2 - 15 to 45 inches: clay
BC - 45 to 80 inches: loam
Properties and qualities
Slope: 2 to 8 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Moderate (about 8.5 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: B
Hydric soil rating: No
Description of Faceville
Setting
Landform: Broad interstream divides on marine terraces, ridges on marine
terraces
Landform position (two-dimensional): Shoulder, summit
Landform position (three-dimensional): Crest
Down -slope shape: Convex
Across -slope shape: Convex
15

Custom Soil Resource Report
Parent material: Clayey marine deposits
Typical profile
Ap - 0 to 8 inches: fine sandy loam
E - 8 to 13 inches: fine sandy loam
Bt - 13 to 80 inches: clay loam
Properties and qualities
Slope: 2 to 8 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: Moderate (about 8.1 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 2e
Hydrologic Soil Group: B
Hydric soil rating: No
RaA—Rains fine sandy loam, 0 to 2 percent slopes, Southern Coastal
Plain
Map Unit Setting
National map unit symbol: 2v75b
Elevation: 30 to 330 feet
Mean annual precipitation: 40 to 55 inches
Mean annual air temperature: 59 to 70 degrees F
Frost -free period: 200 to 280 days
Farmland classification: Prime farmland if drained
Map Unit Composition
Rains, undrained, and similar soils: 70 percent
Rains, drained, and similar soils: 16 percent
Minor components: 14 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Rains, Undrained
Setting
Landform: Flats on marine terraces, carolina bays on marine terraces, broad
interstream divides on marine terraces
Landform position (three-dimensional): Dip, talf
Down -slope shape: Linear
16

Custom Soil Resource Report
Across -slope shape: Linear
Parent material: Loamy marine deposits
Typical profile
A - 0 to 8 inches: fine sandy loam
Eg - 8 to 13 inches: fine sandy loam
Btg - 13 to 72 inches: sandy clay loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Poorly drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: About 0 to 12 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: High (about 9.7 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4w
Hydrologic Soil Group: B/D
Hydric soil rating: Yes
Description of Rains, Drained
Setting
Landform: Carolina bays on marine terraces, broad interstream divides on marine
terraces, flats on marine terraces
Landform position (three-dimensional): Dip, talf
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Loamy marine deposits
Typical profile
Ap - 0 to 8 inches: fine sandy loam
Eg - 8 to 13 inches: fine sandy loam
Btg - 13 to 72 inches: sandy clay loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Poorly drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: About 24 to 36 inches
Frequency of flooding: None
Frequency of ponding: None
Available water storage in profile: High (about 9.7 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 3w
Hydrologic Soil Group: B/D
Hydric soil rating: Yes
17

Custom Soil Resource Report
Minor Components
Lynchburg
Percent of map unit: 8 percent
Landform: Flats on marine terraces, broad interstream divides on marine terraces
Landform position (three-dimensional): Talf
Down -slope shape: Linear
Across -slope shape: Linear
Hydric soil rating: No
Pantego, ponded
Percent of map unit: 6 percent
Landform: Flats, broad interstream divides
Landform position (three-dimensional): Talf
Down -slope shape: Linear
Across -slope shape: Concave
Hydric soil rating: Yes
W—Water
Map Unit Composition
Water: 100 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Water
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 8w
Hydric soil rating: No
Wh—Wehadkee loam, 0 to 2 percent slopes, frequently flooded
Map Unit Setting
National map unit symbol: 3gf9
Elevation: 200 to 1,400 feet
Mean annual precipitation: 37 to 60 inches
Mean annual air temperature: 59 to 66 degrees F
Frost -free period: 200 to 240 days
Farmland classification: Not prime farmland
Map Unit Composition
Wehadkee, undrained, and similar soils: 85 percent
Wehadkee, drained, and similar soils: 5 percent
Minor components: 8 percent
18

Custom Soil Resource Report
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Wehadkee, Undrained
Setting
Landform: Depressions on flood plains
Down -slope shape: Concave
Across -slope shape: Linear
Parent material: Loamy alluvium derived from igneous and metamorphic rock
Typical profile
A - 0 to 8 inches: loam
Bg - 8 to 43 inches: sandy clay loam
Cg - 43 to 80 inches: sandy loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Poorly drained
Runoff class: Ponded
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: About 0 to 12 inches
Frequency of flooding: Frequent
Frequency of ponding: None
Available water storage in profile: High (about 9.9 inches)
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 6w
Hydrologic Soil Group: B/D
Hydric soil rating: Yes
Description of Wehadkee, Drained
Setting
Landform: Depressions on flood plains
Down -slope shape: Concave
Across -slope shape: Linear
Parent material: Loamy alluvium derived from igneous and metamorphic rock
Typical profile
Ap - 0 to 8 inches: loam
Bg - 8 to 43 inches: sandy clay loam
Cg - 43 to 80 inches: sandy loam
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Natural drainage class: Poorly drained
Runoff class: Ponded
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to
high (0.57 to 1.98 in/hr)
Depth to water table: About 0 to 12 inches
Frequency of flooding: Frequent
Frequency of ponding: None
Available water storage in profile: High (about 9.9 inches)
19

Custom Soil Resource Report
Interpretive groups
Land capability classification (irrigated): None specified
Land capability classification (nonirrigated): 4w
Hydrologic Soil Group: B/D
Hydric soil rating: Yes
Minor Components
Chewacla
Percent of map unit: 4 percent
Landform: Flood plains
Down -slope shape: Concave
Across -slope shape: Linear
Hydric soil rating: No
Riverview
Percent of map unit: 4 percent
Landform: Flood plains
Down -slope shape: Linear
Across -slope shape: Linear
Hydric soil rating: No
20

References
American Association of State Highway and Transportation Officials (AASHTO).
2004. Standard specifications for transportation materials and methods of sampling
and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of
soils for engineering purposes. ASTM Standard D2487-00.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of
wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife
Service FWS/OBS-79/31.
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric
soils in the United States.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U.S. Department of Agriculture Handbook 18. http://www.nres.usda.gov/wps/portal/
nres/detail/national/soils/?cid=nres 142p2_054262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for
making and interpreting soil surveys. 2nd edition. Natural Resources Conservation
Service, U.S. Department of Agriculture Handbook 436. http://
www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053577
Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://
www. nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=nres142p2_053580
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual. Waterways Experiment Station Technical
Report Y-87-1.
United States Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/
home/?cid=nres142p2_053374
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http://www.nres.usda.gov/wps/portal/nres/
detail/national/landuse/rangepasture/?cid=stelprdb1043084
21

Custom Soil Resource Report
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-VI. http://www.nres.usda.gov/wps/portal/
nres/detail/soils/scientists/?cid=nres142p2_054242
United States Department of Agriculture, Natural Resources Conservation Service.
2006. Land resource regions and major land resource areas of the United States,
the Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook
296. http://www.nres.usda.gov/wps/portal/nres/detail/national/soils/?
cid=nres142p2_053624
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification. U.S. Department of Agriculture Handbook 210. http://
www.nrcs.usda.gov/lnternet/FSE—DOCUMENTS/nrcsl 42p2_052290.pdf
22

APPENDIX B. DESIGN CALCULATIONS

Pre -Construction:
Subbasins 01 Overview

Project Description
File Name .........................................................
Pre -Development 9_20_19.SPF
Project Options
Flow Units ........................................................
CFS
Elevation Type .................................................
Elevation
Hydrology Method ............................................
SCS TR-55
Time of Concentration (TOC) Method ..............
Kirpich
Link Routing Method ........................................
Hydrodynamic
Enable Overflow Ponding at Nodes .................
YES
Skip Steady State Analysis Time Periods ........
NO
Analysis Options
Start Analysis On .............................................
Jul 09, 2019
00:00:00
End Analysis On ...............................................
Jul 10, 2019
00:00:00
Start Reporting On ...........................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .......................................
0
days
Runoff (Dry Weather) Time Step ......................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .....................
0 00:05:00
days hh:mm:ss
Reporting Time Step ........................................
0 00:05:00
days hh:mm:ss
Routing Time Step ...........................................
30
seconds
Number of Elements
Qty
RainGages ......................................................
1
Subbasins..........................................................
1
Nodes................................................................
2
Junctions ..................................................
1
Outfalls....................................................
1
Flow Diversions .......................................
0
Inlets........................................................
0
Storage Nodes .........................................
0
Links..................................................................
1
Channels.................................................
0
Pipes........................................................
1
Pumps......................................................
0
Orifices.....................................................
0
Weirs.......................................................
0
Outlets.....................................................
0
Pollutants.........................................................
0
LandUses ........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
(years) (inches)
1 Rain Gage-01 Time Series TS-02 Cumulative inches North Carolina Nash 2 3.70 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average
Flow Total Total
Total Peak
Time of
ID Curve Slope
Length Rainfall Runoff
Runoff Runoff
Concentration
Number
Volume
(ac) N
(ft) (in) (in)
(ac-in) (cfs)
(days hh:mm:ss)
1 Sub-01 18.50 49.00 2.9000
1146.01 3.70 0.22
4.03 2.18
0 00:06:54

Node Summary
SN Element Element
Invert Ground/Rim
Initial Surcharge Ponded Peak Max HGL
Max
Min
Time of Total Total Time
ID Type
Elevation
(Max)
Water Elevation
Area Inflow Elevation Surcharge Freeboard
Peak Flooded Flooded
Elevation Elevation
Attained
Depth
Attained
Flooding Volume
Attained
Occurrence
(ft)
(ft)
(ft) (ft)
(ft') (cfs) (ft)
(ft)
(ft)
(days hh:mm) (ac-in) (min)
1 Jun-01 Junction
0.00
6.00
0.00 6.00
0.00 1.81 0.00
0.00
6.00
0 00:00 0.00 0.00
2 Out-01 Outfall
0.00
1.81 0.00

Link Summary
SN Element Element From To (Outlet) Length
Inlet
Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/ Peak Flow Peak Flow
Peak Flow Total Time Reported
ID Type (Inlet) Node
Invert
Invert Slope Height Roughness Flow Capacity Design Flow Velocity Depth
Depth/ Surcharged Condition
Node
Elevation Elevation Ratio
Total Depth
Ratio
(ft)
(ft)
(ft) N (in) (cfs) (cfs) (fUsec) (ft)
(min)
1 Link-01 Pipe Jun-01 Out-01 90.43
0.00
0.00 0.0000 0.000 0.0150 1.81 0.00 0.00 0.00 0.00
0.00 0.00

Subbasin Hydrology
Subbasin : Sub-01
Input Data
Area (ac)......................................................
18.50
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
2.9000
Flow Length (ft)...........................................
1146.01
Rain Gage ID ...............................................
Rain Gage-01
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 18.50 A 49.00
Composite Area & Weighted CN 18.50 49.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 1146.01
Slope (%).................................................... 2.9
Computed TOC (min) .................................. 6.91
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 0.22
Peak Runoff (cfs)......................................... 2.18
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:06:55

Subbasin : Sub-01
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
E 2.8
2.6
2.4
ry 2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
N 1.1
v 1
0
0.9
Or
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]
Runoff Hydrograph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]

Junction Input
SN Element Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID Elevation (Max)
(Max)
Water Water Elevation
Depth Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft) (ft)
(ft)
(ft) (ft) (ft)
(ft) (ft')
(in)
1 Jun-01 0.00 6.00
6.00
0.00 0.00 6.00
0.00 0.00
0.00

Junction Results
SN Element Peak Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of Total Total Time
ID Inflow Lateral Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded Flooded
Inflow Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs) (cfs) (ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm) (ac-in) (min)
1 Jun-01 1.81 1.81 0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00 0.00 0.00

Pipe Input
SN Element Length Inlet Inlet
Outlet Outlet Total Average Pipe
Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No. of
ID Invert Invert
Invert Invert Drop
Slope Shape
Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels
Elevation Offset Elevation
Offset
Height
(ft) (ft) (ft)
(ft) (ft) (ft)
N
(in) (in) (cfs)
1 Link-01 90.43 0.00 0.00
0.00 0.00 0.00
0.0000 Dummy
0.000 0.000 0.0150 0.5000 0.5000 0.0000 0.00 No 1

Pipe Results
SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported
ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 Link-01 1.81 0 12:10 0.00 0.00 0.00 0.00 0.00 0.00

Project Description
File Name .........................................................
Pre -Development 9_20_19.SPF
Project Options
Flow Units ........................................................
CFS
Elevation Type .................................................
Elevation
Hydrology Method ............................................
SCS TR-55
Time of Concentration (TOC) Method ..............
Kirpich
Link Routing Method ........................................
Hydrodynamic
Enable Overflow Ponding at Nodes .................
YES
Skip Steady State Analysis Time Periods ........
NO
Analysis Options
Start Analysis On .............................................
Jul 09, 2019
00:00:00
End Analysis On ...............................................
Jul 10, 2019
00:00:00
Start Reporting On ...........................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .......................................
0
days
Runoff (Dry Weather) Time Step ......................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .....................
0 00:05:00
days hh:mm:ss
Reporting Time Step ........................................
0 00:05:00
days hh:mm:ss
Routing Time Step ...........................................
30
seconds
Number of Elements
Qty
RainGages ......................................................
1
Subbasins..........................................................
1
Nodes................................................................
2
Junctions ..................................................
1
Outfalls....................................................
1
Flow Diversions .......................................
0
Inlets........................................................
0
Storage Nodes .........................................
0
Links..................................................................
1
Channels.................................................
0
Pipes........................................................
1
Pumps......................................................
0
Orifices.....................................................
0
Weirs.......................................................
0
Outlets.....................................................
0
Pollutants.........................................................
0
LandUses ........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
(years) (inches)
1 Rain Gage-01 Time Series TS-10 Cumulative inches North Carolina Nash 10 5.70 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average
Flow Total Total
Total Peak
Time of
ID Curve Slope
Length Rainfall Runoff
Runoff Runoff
Concentration
Number
Volume
(ac) N
(ft) (in) (in)
(ac-in) (cfs)
(days hh:mm:ss)
1 Sub-01 18.50 49.00 2.9000
1146.01 5.70 0.93
17.26 21.84
0 00:06:54

Node Summary
SN Element Element
Invert Ground/Rim
Initial Surcharge Ponded Peak Max HGL
Max
Min
Time of Total Total Time
ID Type
Elevation
(Max)
Water Elevation
Area Inflow Elevation Surcharge Freeboard
Peak Flooded Flooded
Elevation Elevation
Attained
Depth
Attained
Flooding Volume
Attained
Occurrence
(ft)
(ft)
(ft) (ft)
(ft') (cfs) (ft)
(ft)
(ft)
(days hh:mm) (ac-in) (min)
1 Jun-01 Junction
0.00
6.00
0.00 6.00
0.00 21.39 0.00
0.00
6.00
0 00:00 0.00 0.00
2 Out-01 Outfall
0.00
21.39 0.00

Link Summary
SN Element Element From To (Outlet) Length
Inlet
Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/ Peak Flow Peak Flow
Peak Flow Total Time Reported
ID Type (Inlet) Node
Invert
Invert Slope Height Roughness Flow Capacity Design Flow Velocity Depth
Depth/ Surcharged Condition
Node
Elevation Elevation Ratio
Total Depth
Ratio
(ft)
(ft)
(ft) N (in) (cfs) (cfs) (fUsec) (ft)
(min)
1 Link-01 Pipe Jun-01 Out-01 90.43
0.00
0.00 0.0000 0.000 0.0150 21.39 0.00 0.00 0.00 0.00
0.00 0.00

Subbasin Hydrology
Subbasin : Sub-01
Input Data
Area (ac)......................................................
18.50
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
2.9000
Flow Length (ft)...........................................
1146.01
Rain Gage ID ...............................................
Rain Gage-01
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 18.50 A 49.00
Composite Area & Weighted CN 18.50 49.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 1146.01
Slope (%).................................................... 2.9
Computed TOC (min) .................................. 6.91
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 0.93
Peak Runoff (cfs)......................................... 21.84
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:06:55

Subbasin : Sub-01
8
7.5
7
6.5
6
5.5
5
4.5
v 4
3.5
3
2.5
2
1.5
1
0.5
23
22
21
20
19
18
17
16
15
14
N 13
--- 12
11
10
9
8
7
6
5
4
3
2
1
Rainfall Intensity Graph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]
Runoff Hydrograph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]

Junction Input
SN Element Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID Elevation (Max)
(Max)
Water Water Elevation
Depth Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft) (ft)
(ft)
(ft) (ft) (ft)
(ft) (ft')
(in)
1 Jun-01 0.00 6.00
6.00
0.00 0.00 6.00
0.00 0.00
0.00

Junction Results
SN Element Peak Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of Total Total Time
ID Inflow Lateral Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded Flooded
Inflow Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs) (cfs) (ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm) (ac-in) (min)
1 Jun-01 21.39 21.39 0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00 0.00 0.00

Pipe Input
SN Element Length Inlet Inlet
Outlet Outlet Total Average Pipe
Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No. of
ID Invert Invert
Invert Invert Drop
Slope Shape
Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels
Elevation Offset Elevation
Offset
Height
(ft) (ft) (ft)
(ft) (ft) (ft)
N
(in) (in) (cfs)
1 Link-01 90.43 0.00 0.00
0.00 0.00 0.00
0.0000 Dummy
0.000 0.000 0.0150 0.5000 0.5000 0.0000 0.00 No 1

Pipe Results
SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported
ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 Link-01 21.39 0 12:05 0.00 0.00 0.00 0.00 0.00 0.00

Project Description
File Name .........................................................
Pre -Development 9_20_19.SPF
Project Options
Flow Units ........................................................
CFS
Elevation Type .................................................
Elevation
Hydrology Method ............................................
SCS TR-55
Time of Concentration (TOC) Method ..............
Kirpich
Link Routing Method ........................................
Hydrodynamic
Enable Overflow Ponding at Nodes .................
YES
Skip Steady State Analysis Time Periods ........
NO
Analysis Options
Start Analysis On .............................................
Jul 09, 2019
00:00:00
End Analysis On ...............................................
Jul 10, 2019
00:00:00
Start Reporting On ...........................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .......................................
0
days
Runoff (Dry Weather) Time Step ......................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .....................
0 00:05:00
days hh:mm:ss
Reporting Time Step ........................................
0 00:05:00
days hh:mm:ss
Routing Time Step ...........................................
30
seconds
Number of Elements
Qty
RainGages ......................................................
1
Subbasins..........................................................
1
Nodes................................................................
2
Junctions ..................................................
1
Outfalls....................................................
1
Flow Diversions .......................................
0
Inlets........................................................
0
Storage Nodes .........................................
0
Links..................................................................
1
Channels.................................................
0
Pipes........................................................
1
Pumps......................................................
0
Orifices.....................................................
0
Weirs.......................................................
0
Outlets.....................................................
0
Pollutants.........................................................
0
LandUses ........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
(years) (inches)
1 Rain Gage-01 Time Series TS-25 Cumulative inches North Carolina Nash 25 6.60 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average
Flow Total Total
Total Peak
Time of
ID Curve Slope
Length Rainfall Runoff
Runoff Runoff
Concentration
Number
Volume
(ac) N
(ft) (in) (in)
(ac-in) (cfs)
(days hh:mm:ss)
1 Sub-01 18.50 49.00 2.9000
1146.01 6.60 1.37
25.31 33.71
0 00:06:54

Node Summary
SN Element Element
Invert Ground/Rim
Initial Surcharge Ponded Peak Max HGL
Max
Min
Time of Total Total Time
ID Type
Elevation
(Max)
Water Elevation
Area Inflow Elevation Surcharge Freeboard
Peak Flooded Flooded
Elevation Elevation
Attained
Depth
Attained
Flooding Volume
Attained
Occurrence
(ft)
(ft)
(ft) (ft)
(ft') (cfs) (ft)
(ft)
(ft)
(days hh:mm) (ac-in) (min)
1 Jun-01 Junction
0.00
6.00
0.00 6.00
0.00 33.53 0.00
0.00
6.00
0 00:00 0.00 0.00
2 Out-01 Outfall
0.00
33.53 0.00

Link Summary
SN Element Element From To (Outlet) Length
Inlet
Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/ Peak Flow Peak Flow
Peak Flow Total Time Reported
ID Type (Inlet) Node
Invert
Invert Slope Height Roughness Flow Capacity Design Flow Velocity Depth
Depth/ Surcharged Condition
Node
Elevation Elevation Ratio
Total Depth
Ratio
(ft)
(ft)
(ft) N (in) (cfs) (cfs) (fUsec) (ft)
(min)
1 Link-01 Pipe Jun-01 Out-01 90.43
0.00
0.00 0.0000 0.000 0.0150 33.53 0.00 0.00 0.00 0.00
0.00 0.00

Subbasin Hydrology
Subbasin : Sub-01
Input Data
Area (ac)......................................................
18.50
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
2.9000
Flow Length (ft)...........................................
1146.01
Rain Gage ID ...............................................
Rain Gage-01
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 18.50 A 49.00
Composite Area & Weighted CN 18.50 49.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 1146.01
Slope (%).................................................... 2.9
Computed TOC (min) .................................. 6.91
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 1.37
Peak Runoff (cfs)......................................... 33.71
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:06:55

Subbasin : Sub-01
9.5
9
8.5
8
7.5
7
6.5
6
5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
36
34
32
30
28
26
24
22
N 20
v 18
0
16
14
12
10
8
6
4
2
Rainfall Intensity Graph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]
Runoff Hydrograph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]

Junction Input
SN Element Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID Elevation (Max)
(Max)
Water Water Elevation
Depth Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft) (ft)
(ft)
(ft) (ft) (ft)
(ft) (ft')
(in)
1 Jun-01 0.00 6.00
6.00
0.00 0.00 6.00
0.00 0.00
0.00

Junction Results
SN Element Peak Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of Total Total Time
ID Inflow Lateral Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded Flooded
Inflow Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs) (cfs) (ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm) (ac-in) (min)
1 Jun-01 33.53 33.53 0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00 0.00 0.00

Pipe Input
SN Element Length Inlet Inlet
Outlet Outlet Total Average Pipe
Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No. of
ID Invert Invert
Invert Invert Drop
Slope Shape
Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels
Elevation Offset Elevation
Offset
Height
(ft) (ft) (ft)
(ft) (ft) (ft)
N
(in) (in) (cfs)
1 Link-01 90.43 0.00 0.00
0.00 0.00 0.00
0.0000 Dummy
0.000 0.000 0.0150 0.5000 0.5000 0.0000 0.00 No 1

Pipe Results
SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported
ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 Link-01 33.53 0 12:05 0.00 0.00 0.00 0.00 0.00 0.00

Project Description
File Name ......................................................... Pre -Development 9_20_19.SPF
Project Options
Flow Units ........................................................
CFS
Elevation Type .................................................
Elevation
Hydrology Method ............................................
SCS TR-55
Time of Concentration (TOC) Method ..............
Kirpich
Link Routing Method ........................................
Hydrodynamic
Enable Overflow Ponding at Nodes .................
YES
Skip Steady State Analysis Time Periods ........
NO
Analysis Options
Start Analysis On .............................................
Jul 09, 2019
00:00:00
End Analysis On ...............................................
Jul 10, 2019
00:00:00
Start Reporting On ...........................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .......................................
0
days
Runoff (Dry Weather) Time Step ......................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .....................
0 00:05:00
days hh:mm:ss
Reporting Time Step ........................................
0 00:05:00
days hh:mm:ss
Routing Time Step ...........................................
30
seconds
Number of Elements
Qty
RainGages ......................................................
1
Subbasins..........................................................
1
Nodes................................................................
2
Junctions ..................................................
1
Outfalls....................................................
1
Flow Diversions .......................................
0
Inlets........................................................
0
Storage Nodes .........................................
0
Links..................................................................
1
Channels.................................................
0
Pipes........................................................
1
Pumps......................................................
0
Orifices.....................................................
0
Weirs.......................................................
0
Outlets.....................................................
0
Pollutants.........................................................
0
LandUses ........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
1 Rain Gage-01 Time Series TS-100 Cumulative inches North Carolina Nash 100 8.30 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average
Flow Total Total
Total Peak
Time of
ID Curve Slope
Length Rainfall Runoff
Runoff Runoff
Concentration
Number
Volume
(ac) N
(ft) (in) (in)
(ac-in) (cfs)
(days hh:mm:ss)
1 Sub-01 18.50 49.00 2.9000
1146.01 8.30 2.33
43.03 60.47
0 00:06:54

Node Summary
SN Element Element
Invert Ground/Rim
Initial Surcharge Ponded Peak Max HGL
Max
Min
Time of Total Total Time
ID Type
Elevation
(Max)
Water Elevation
Area Inflow Elevation Surcharge Freeboard
Peak Flooded Flooded
Elevation Elevation
Attained
Depth
Attained
Flooding Volume
Attained
Occurrence
(ft)
(ft)
(ft) (ft)
(ft') (cfs) (ft)
(ft)
(ft)
(days hh:mm) (ac-in) (min)
1 Jun-01 Junction
0.00
6.00
0.00 6.00
0.00 59.63 0.00
0.00
6.00
0 00:00 0.00 0.00
2 Out-01 Outfall
0.00
59.63 0.00

Link Summary
SN Element Element From To (Outlet) Length
Inlet
Outlet Average Diameter or Manning's Peak Design Flow Peak Flow/ Peak Flow Peak Flow
Peak Flow Total Time Reported
ID Type (Inlet) Node
Invert
Invert Slope Height Roughness Flow Capacity Design Flow Velocity Depth
Depth/ Surcharged Condition
Node
Elevation Elevation Ratio
Total Depth
Ratio
(ft)
(ft)
(ft) N (in) (cfs) (cfs) (fUsec) (ft)
(min)
1 Link-01 Pipe Jun-01 Out-01 90.43
0.00
0.00 0.0000 0.000 0.0150 59.63 0.00 0.00 0.00 0.00
0.00 0.00

Subbasin Hydrology
Subbasin : Sub-01
Input Data
Area (ac)......................................................
18.50
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
2.9000
Flow Length (ft)...........................................
1146.01
Rain Gage ID ...............................................
Rain Gage-01
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 18.50 A 49.00
Composite Area & Weighted CN 18.50 49.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 1146.01
Slope (%).................................................... 2.9
Computed TOC (min) .................................. 6.91
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 2.33
Peak Runoff (cfs)......................................... 60.47
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:06:55

Subbasin : Sub-01
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
6
5.5
Or
5
4.5
4
3.5
3
2.5
2
1.5
1
0.5
62
60
58
56
54
52
50
48
46
44
42
40
38
36
34
32
0 30
� 28
26
24
22
20
18
16
14
12
10
8
6
4
2
Rainfall Intensity Graph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]
Runoff Hydrograph
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Time [hrs]

Junction Input
SN Element Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID Elevation (Max)
(Max)
Water Water Elevation
Depth Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft) (ft)
(ft)
(ft) (ft) (ft)
(ft) (ft')
(in)
1 Jun-01 0.00 6.00
6.00
0.00 0.00 6.00
0.00 0.00
0.00

Junction Results
SN Element Peak Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of Total Total Time
ID Inflow Lateral Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded Flooded
Inflow Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs) (cfs) (ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm) (ac-in) (min)
1 Jun-01 59.63 59.63 0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00 0.00 0.00

Pipe Input
SN Element Length Inlet Inlet
Outlet Outlet Total Average Pipe
Pipe Pipe Manning's Entrance Exit/Bend Additional Initial Flap No. of
ID Invert Invert
Invert Invert Drop
Slope Shape
Diameter or Width Roughness Losses Losses Losses Flow Gate Barrels
Elevation Offset Elevation
Offset
Height
(ft) (ft) (ft)
(ft) (ft) (ft)
N
(in) (in) (cfs)
1 Link-01 90.43 0.00 0.00
0.00 0.00 0.00
0.0000 Dummy
0.000 0.000 0.0150 0.5000 0.5000 0.0000 0.00 No 1

Pipe Results
SN Element Peak Time of Design Flow Peak Flow/ Peak Flow Travel Peak Flow Peak Flow Total Time Froude Reported
ID Flow Peak Flow Capacity Design Flow Velocity Time Depth Depth/ Surcharged Number Condition
Occurrence Ratio Total Depth
Ratio
(cfs) (days hh:mm) (cfs) (ft/sec) (min) (ft) (min)
1 Link-01 59.63 0 12:05 0.00 0.00 0.00 0.00 0.00 0.00

Post -Construction:
Phase 2 Overview
A-02
RMWATE R

Post -Construction:
Sediment Pond Overview

Project Description
File Name...........................................................
post development 9-18-19 cf.SPF
Project Options
Flow Units..........................................................
CFS
Elevation Type ...................................................
Elevation
Hydrology Method ..............................................
SCS TR-55
Time of Concentration (TOC) Method ................
Kirpich
Link Routing Method ..........................................
Kinematic Wave
Enable Overflow Ponding at Nodes ...................
YES
Skip Steady State Analysis Time Periods ..........
NO
Analysis Options
Start Analysis On ...............................................
Jul 09, 2019
00:00:00
End Analysis On .................................................
Jul 11, 2019
00:00:00
Start Reporting On .............................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .........................................
0
days
Runoff (Dry Weather) Time Step ........................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .......................
0 00:05:00
days hh:mm:ss
Reporting Time Step ..........................................
0 00:05:00
days hh:mm:ss
Routing Time Step .............................................
30
seconds
Number of Elements
Qty
RainGages ........................................................
1
Subbasins............................................................
17
Nodes..................................................................
16
Junctions ....................................................
13
Outfalls......................................................
2
Flow Diversions .........................................
0
Inlets..........................................................
0
Storage Nodes ...........................................
1
Links....................................................................
16
Channels...................................................
2
Pipes..........................................................
11
Pumps........................................................
0
Orifices.......................................................
1
Weirs.........................................................
1
Outlets.......................................................
1
Pollutants...........................................................
0
LandUses..........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
(years) (inches)
1 Rain Gage-001 Time Series TS-02 Cumulative inches North Carolina Nash 2 3.70 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average Flow Total Total Total Peak Time of
ID Curve Slope Length Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) M (ft) (in) (in) (ac-in) (cfs) (days hh:mm:ss)
1 Sub-02 1.56 77.00 25.0000 500.00 3.70 1.58 2.47 3.90 0 00:05:00
2 Sub-03 1.98 77.00 25.0000 500.00 3.70 1.58 3.13 4.94 0 00:05:00
3 Sub-04 2.38 77.00 25.0000 500.00 3.70 1.58 3.76 5.93 0 00:05:00
4 Sub-05 2.49 77.00 25.0000 500.00 3.70 1.58 3.93 6.20 0 00:05:00
5 Sub-06 0.71 77.00 25.0000 500.00 3.70 1.58 1.12 1.76 0 00:05:00
6 Sub-07 0.64 77.00 25.0000 500.00 3.70 1.58 1.01 1.60 0 00:05:00
7 Sub-08 2.32 77.00 25.0000 500.00 3.70 1.58 3.66 5.79 0 00:05:00
8 Sub-09 1.38 88.20 0.5000 500.00 3.70 2.47 3.41 5.02 0 00:07:10
9 Sub-10 0.30 77.00 5.0000 107.16 3.70 1.58 0.48 0.75 0 00:05:00
10 Sub-11 0.05 77.00 5.0000 148.05 3.70 1.57 0.08 0.11 0 00:05:00
11 Sub-12 0.04 77.00 5.0000 78.07 3.70 1.57 0.07 0.11 0 00:05:00
12 Sub-13 0.15 77.00 5.0000 68.43 3.70 1.58 0.23 0.37 0 00:05:00
13 Sub-14 0.22 77.00 5.0000 88.05 3.70 1.58 0.35 0.56 0 00:05:00
14 Sub-15 0.06 77.00 5.0000 123.83 3.70 1.57 0.09 0.14 0 00:05:00
15 Sub-16 0.07 77.00 5.0000 74.76 3.70 1.58 0.11 0.18 0 00:05:00
16 Sub-17 2.50 51.80 2.5000 557.07 3.70 0.30 0.76 0.74 0 00:05:00
17 Sub-18 0.52 49.00 0.5000 383.97 3.70 0.22 0.11 0.07 0 00:05:51

Node Summary
SN Element
Element
Invert
Ground/Rim
Initial
Surcharge
Ponded
Peak
Max HGL
Max
Min
Time of
Total
Total Time
ID
Type
Elevation
(Max)
Water
Elevation
Area
Inflow
Elevation
Surcharge
Freeboard
Peak
Flooded
Flooded
Elevation
Elevation
Attained
Depth
Attained
Flooding
Volume
Attained
Occurrence
(ft)
(ft)
(ft)
(ft)
(ft')
(cfs)
(ft)
(ft)
(ft)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
Junction
223.00
227.00
0.00
0.00
0.00
1.69
223.00
0.00
4.00
0 00:00
0.00
0.00
2 Jun-02
Junction
220.00
224.00
0.00
0.00
0.00
3.55
220.00
0.00
4.00
0 00:00
0.00
0.00
3 Jun-03
Junction
215.00
219.00
0.00
0.00
0.00
10.05
215.00
0.00
4.00
0 00:00
0.00
0.00
4 Jun-04
Junction
197.00
201.00
0.00
0.00
0.00
16.48
197.00
0.00
4.00
0 00:00
0.00
0.00
5 Jun-06
Junction
211.00
215.00
0.00
0.00
0.00
10.65
211.00
0.00
4.00
0 00:00
0.00
0.00
6 Jun-07
Junction
223.00
227.00
0.00
0.00
0.00
6.48
223.00
0.00
4.00
0 00:00
0.00
0.00
7 Jun-08
Junction
208.00
212.00
0.00
0.00
0.00
15.72
208.00
0.00
4.00
0 00:00
0.00
0.00
8 Jun-09
Junction
199.00
203.00
0.00
0.00
0.00
15.72
199.00
0.00
4.00
0 00:00
0.00
0.00
9 Jun-10
Junction
194.00
196.00
0.00
0.00
0.00
16.48
195.04
0.00
0.96
0 00:00
0.00
0.00
10 Jun-11
Junction
193.00
196.00
0.00
0.00
0.00
16.17
194.03
0.00
1.97
0 00:00
0.00
0.00
11 Jun-12
Junction
192.00
199.00
0.00
0.00
0.00
16.05
193.01
0.00
5.99
0 00:00
0.00
0.00
12 Jun-13
Junction
0.00
6.00
0.00
6.00
0.00
0.66
0.00
0.00
6.00
0 00:00
0.00
0.00
13 Jun-14
Junction
192.00
196.00
192.00
0.00
0.00
0.38
192.20
0.00
3.80
0 00:00
0.00
0.00
14 Out-01
Outfall
191.50
0.38
191.70
15 Out-02
Outfall
191.50
0.00
191.50
16 Stor-01
Storage Node
192.00
198.00
193.00
31740.00
35.93
194.57
0.00
0.00

Link Summary
SN Element
Element From To (Outlet) Length
Inlet
Outlet
Average Diameter or
Manning's Peak Design Flow
Peak Flow/ Peak Flow Peak Flow
Peak Flow
Total Time Reported
ID
Type
(Inlet) Node
Invert
Invert
Slope
Height
Roughness Flow
Capacity
Design Flow
Velocity
Depth
Depth/
Surcharged Condition
Node
Elevation Elevation
Ratio
Total Depth
Ratio
(ft)
(ft)
(ft)
N
(in)
(cfs)
(cfs)
(fUsec)
(ft)
(min)
1 Link-02
Pipe
Jun-09 Stor-01
83.78
0.00
0.00
0.0000
0.000
0.0320 15.72
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
Pipe
Jun-07 Jun-06
524.19
223.00
211.00
2.2900
0.000
0.0300 6.48
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
Pipe
Jun-01 Jun-02
175.44
223.00
220.00
1.7100
0.000
0.0300 1.69
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
Pipe
Jun-02 Jun-03
182.89
220.00
215.00
2.7300
0.000
0.0300 3.55
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
Pipe
Jun-03 Jun-04
545.86
215.00
197.00
3.3000
0.000
0.0300 10.05
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
Pipe
Jun-06 Jun-08
417.04
211.00
208.00
0.7200
0.000
0.0300 10.65
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
Pipe
Jun-08 Jun-09
255.16
208.00
199.00
3.5300
0.000
0.0320 15.72
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
Pipe
Jun-04 Jun-10
88.32
0.00
0.00
0.0000
0.000
0.0150 16.48
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
Pipe
Jun-12 Stor-01
143.43
0.00
192.00
-133.8600
0.000
0.0150 16.05
0.00
0.23
0.00
0.97
0.50
0.00 Calculated
10 Link-25
Pipe
Jun-13 Jun-06
49.86
0.00
211.00
-423.1800
0.000
0.0150 0.66
0.00
0.23
0.00
0.97
0.50
0.00 Calculated
11 Link-26
Pipe
Jun-14 Out-01
78.27
192.00
191.50
0.6400
30.000
0.0150 0.38
28.41
0.01
2.03
0.20
0.08
0.00 Calculated
12 Link-10
Channel
Jun-10 Jun-11
183.06
194.00
193.00
0.5500
24.000
0.0320 16.17
67.82
0.24
2.61
1.01
0.51
0.00
13 Link-11
Channel
Jun-11 Jun-12
173.36
193.00
192.00
0.5800
24.000
0.0320 16.05
69.69
0.23
2.65
0.97
0.50
0.00
14 Riser-01
Orifice
Stor-01 Jun-14
192.00
192.00
72.000
0.00
15 Skimmer-01
Outlet
Stor-01 Jun-14
192.00
192.00
0.38
16 Weir-01
Weir
Stor-01 Out-02
192.00
191.50
0.00

Subbasin Hydrology
Subbasin : Sub-02
Input Data
Area(ac)......................................................
1.56
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.56 A 77.00
Composite Area & Weighted CN 1.56 77.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 3.90
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-02
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
'E 2.4
ry 2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
4.2
4
3.8
3.6
3.4
3.2
3
2.8
2.6
N 2.4
v 22
0 2
C
1h 1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-03
Input Data
Area(ac)......................................................
1.98
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.98 A 77.00
Composite Area & Weighted CN 1.98 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 4.94
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-03
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
N
t 2.8
w 2.6
0
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-04
Input Data
Area(ac)......................................................
2.38
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.38 A 77.00
Composite Area & Weighted CN 2.38 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 5.93
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-04
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
6.2
6
5.8
5.6
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
0 3
� 2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-05
Input Data
Area(ac)......................................................
2.49
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.49 A 77.00
Composite Area & Weighted CN 2.49 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 6.20
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-05
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
7
6.5
6
5.5
5
4.5
N 4
C]
w 3.5
0
0
FY 3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-06
Input Data
Area(ac)......................................................
0.71
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.71 A 77.00
Composite Area & Weighted CN 0.71 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 1.76
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-06
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
N
1
0.9
1h 0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-07
Input Data
Area(ac)......................................................
0.64
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.64 A 77.00
Composite Area & Weighted CN 0.64 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 1.60
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-07
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
1.7
1.6
1.5
1.4
1.3
1.2
1.1
_ 1
N
0.9
0.8
O✓
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-08
Input Data
Area(ac)......................................................
2.32
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.32 A 77.00
Composite Area & Weighted CN 2.32 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 5.79
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-08
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
6.2
6
5.8
5.6
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
0 3
� 2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-09
Input Data
Area(ac)......................................................
1.38
Weighted Curve Number .............................
88.20
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
Open Water
1.11
A
98.00
50 - 75% grass cover, Fair
0.28
A
49.00
Composite Area & Weighted CN
1.39
88.20
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 0.5
Computed TOC (min) .................................. 7.18
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 2.47
Peak Runoff (cfs)......................................... 5.02
Weighted Curve Number ............................. 88.20
Time of Concentration (days hh:mm:ss) ...... 0 00:07:11

Subbasin : Sub-09
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
N
t 2.8
w 2.6
0
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-10
Input Data
Area(ac)......................................................
0.30
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
107.16
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.30 A 77.00
Composite Area & Weighted CN 0.30 77.00
Time of Concentration
Flow Length (ft)........................................... 107.16
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.90
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 0.75
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:54

Subbasin : Sub-10
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.8
0.75
0.7
0.65
0.6
0.55
0.5
N 0.45
w 0.4
0
0
� 0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-11
Input Data
Area(ac)......................................................
0.05
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
148.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.05 A 77.00
Composite Area & Weighted CN 0.05 77.00
Time of Concentration
Flow Length (ft)........................................... 148.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.16
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.57
Peak Runoff (cfs)......................................... 0.11
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:10

Subbasin : Sub-11
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.12
0.115
0.11
0.105
0.1
0.095
0.09
0.085
0.08
0.075
- 0.07
N
t 0.065
w 0.06
0
� 0.055
e
0.05
0.045
0.04
0.035
0.03
0.025
0.02
0.015
0.01
0.005
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 8 8 10 12 14 18 18 20 22 24 28 28 30 32 34 38 38 40 42 44 46
Time [hrs]

Subbasin : Sub-12
Input Data
Area(ac)......................................................
0.04
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
78.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.04 A 77.00
Composite Area & Weighted CN 0.04 77.00
Time of Concentration
Flow Length (ft)........................................... 78.07
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.71
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.57
Peak Runoff (cfs)......................................... 0.11
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:43

Subbasin : Sub-12
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.12
0.115
0.11
0.105
0.1
0.095
0.09
0.085
0.08
0.075
- 0.07
N
t 0.065
w 0.06
0
� 0.055
e
0.05
0.045
0.04
0.035
0.03
0.025
0.02
0.015
0.01
0.005
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 8 8 10 12 14 18 18 20 22 24 28 28 30 32 34 38 38 40 42 44 46
Time [hrs]

Subbasin : Sub-13
Input Data
Area(ac)......................................................
0.15
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
68.43
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.15 A 77.00
Composite Area & Weighted CN 0.15 77.00
Time of Concentration
Flow Length (ft)........................................... 68.43
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.64
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 0.37
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:38

Subbasin : Sub-13
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.4
0.38
0.36
0.34
0.32
0.3
0.28
0.26
0.24
0.22
w 0.2
0
O✓
0.18
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-14
Input Data
Area(ac)......................................................
0.22
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
88.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.22 A 77.00
Composite Area & Weighted CN 0.22 77.00
Time of Concentration
Flow Length (ft)........................................... 88.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.78
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 0.56
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:47

Subbasin : Sub-14
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.62
0.6
0.58
0.56
0.54
0.52
0.5
0.48
0.46
0.44
0.42
0.4
0.38
0.36
0.34
0.32
0 0.3
0.28
0.26
0.24
0.22
0.2
0.18
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-15
Input Data
Area(ac)......................................................
0.06
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
123.83
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.06 A 77.00
Composite Area & Weighted CN 0.06 77.00
Time of Concentration
Flow Length (ft)........................................... 123.83
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.01
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.57
Peak Runoff (cfs)......................................... 0.14
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:01

Subbasin : Sub-15
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.155
0.15
0.145
0.14
0.135
0.13
0.125
0.12
0.115
0.11
0.105
0.1
0.095
- 0.09
N
t 0.085
, :7 0.08
0.075
C
0.07
1h0.065
0.06
0.055
0.05
0.045
0.04
0.035
0.03
0.025
0.02
0.015
0.01
0.005
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-16
Input Data
Area(ac)......................................................
0.07
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
74.76
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.07 A 77.00
Composite Area & Weighted CN 0.07 77.00
Time of Concentration
Flow Length (ft)........................................... 74.76
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.68
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 1.58
Peak Runoff (cfs)......................................... 0.18
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:41

Subbasin : Sub-16
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.19
0.18
0.17
0.16
0.15
0.14
0.13
0.12
0.11
N
v 0.1
0.09
1h 0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-17
Input Data
Area(ac)......................................................
2.50
Weighted Curve Number .............................
51.80
Average Slope (%)......................................
2.5000
Flow Length (ft)...........................................
557.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
50 - 75% grass cover, Fair
2.25
A
49.00
Fallow, bare soil
0.25
A
77.00
Composite Area & Weighted CN
2.50
51.80
Time of Concentration
Flow Length (ft)........................................... 557.07
Slope (%).................................................... 2.5
Computed TOC (min) .................................. 4.20
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 0.30
Peak Runoff (cfs)......................................... 0.74
Weighted Curve Number ............................. 51.80
Time of Concentration (days hh:mm:ss) ...... 0 00:04:12

Subbasin : Sub-17
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.75
0.7
0.65
0.6
0.55
0.5
0.45
N
v 0.4
O
0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-18
Input Data
Area(ac)......................................................
0.52
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
383.97
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 0.52 A 49.00
Composite Area & Weighted CN 0.52 49.00
Time of Concentration
Flow Length (ft)........................................... 383.97
Slope(%).................................................... 0.5
Computed TOC (min) .................................. 5.86
Subbasin Runoff Results
Total Rainfall (in) ......................................... 3.70
Total Runoff (in) ........................................... 0.22
Peak Runoff (cfs)......................................... 0.07
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:05:52

Subbasin : Sub-18
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
28
co 2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0.05
0.048
0.046
0.044
0.042
0.04
0.038
0.036
0.034
0.032
_ 0.03
N 0.028
, :0.026
0.024
e 0.022
0.02
0.018
0.016
0.014
0.012
0.01
0.008
0.006
0.004
0.002
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Junction Input
SN Element
Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID
Elevation
(Max)
(Max)
Water Water
Elevation
Depth
Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft)
(ft)
(ft)
(ft) (ft)
(ft)
(ft)
(ft')
(in)
1 Jun-01
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
2 Jun-02
220.00
224.00
4.00
0.00-220.00
0.00
-224.00
0.00
0.00
3 Jun-03
215.00
219.00
4.00
0.00-215.00
0.00
-219.00
0.00
0.00
4 Jun-04
197.00
201.00
4.00
0.00-197.00
0.00
-201.00
0.00
0.00
5 Jun-06
211.00
215.00
4.00
0.00-211.00
0.00
-215.00
0.00
0.00
6 Jun-07
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
7 Jun-08
208.00
212.00
4.00
0.00-208.00
0.00
-212.00
0.00
0.00
8 Jun-09
199.00
203.00
4.00
0.00-199.00
0.00
-203.00
0.00
0.00
9 Jun-10
194.00
196.00
2.00
0.00-194.00
0.00
-196.00
0.00
0.00
10 Jun-11
193.00
196.00
3.00
0.00-193.00
0.00
-196.00
0.00
0.00
11 Jun-12
192.00
199.00
7.00
0.00-192.00
0.00
-199.00
0.00
0.00
12 Jun-13
0.00
6.00
6.00
0.00 0.00
6.00
0.00
0.00
0.00
13 Jun-14
192.00
196.00
4.00
192.00 0.00
0.00
-196.00
0.00
0.00

Junction Results
SN Element
Peak
Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of
Total Total Time
ID
Inflow
Lateral
Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded
Flooded
Inflow
Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs)
(cfs)
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
1.69
1.69
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
2 Jun-02
3.55
1.85
220.00
0.00
0.00
4.00
220.00
0.00
0 00:00
0 00:00
0.00
0.00
3 Jun-03
10.05
6.50
215.00
0.00
0.00
4.00
215.00
0.00
0 00:00
0 00:00
0.00
0.00
4 Jun-04
16.48
6.43
197.00
0.00
0.00
4.00
197.00
0.00
0 00:00
0 00:00
0.00
0.00
5 Jun-06
10.65
4.00
211.00
0.00
0.00
4.00
211.00
0.00
0 00:00
0 00:00
0.00
0.00
6 Jun-07
6.48
6.48
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
7 Jun-08
15.72
5.07
208.00
0.00
0.00
4.00
208.00
0.00
0 00:00
0 00:00
0.00
0.00
8 Jun-09
15.72
0.00
199.00
0.00
0.00
4.00
199.00
0.00
0 00:00
0 00:00
0.00
0.00
9 Jun-10
16.48
0.05
195.04
1.04
0.00
0.96
194.05
0.05
0 12:00
0 00:00
0.00
0.00
10 Jun-11
16.17
0.00
194.03
1.03
0.00
1.97
193.05
0.05
0 12:01
0 00:00
0.00
0.00
11 Jun-12
16.05
0.00
193.01
1.01
0.00
5.99
192.05
0.05
0 12:02
0 00:00
0.00
0.00
12 Jun-13
0.66
0.66
0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00
0.00
0.00
13 Jun-14
0.38
0.00
192.20
0.20
0.00
3.80
192.20
0.20
0 00:00
0 00:00
0.00
0.00

Channel Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial Flap
ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Gate
Elevation Offset Elevation Offset
(ft) (ft) (ft) (ft) (ft) (ft) N (ft) (ft) (cfs)
1 Link-10 183.06 194.00 0.00 193.00 0.00 1.00 0.5500 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No
2 Link-11 173.36 193.00 0.00 192.00 0.00 1.00 0.5800 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No

Channel Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity
Time
Depth
Depth/
Surcharged Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec)
(min)
(ft)
(min)
1 Link-10
16.17
0 12:01
67.82
0.24
2.61
1.17
1.01
0.51
0.00
2 Link-11
16.05
0 12:02
69.69
0.23
2.65
1.09
0.97
0.50
0.00

Pipe Input
SN Element
Length
Inlet
Inlet
Outlet
Outlet
Total
Average Pipe
Pipe
Pipe
Manning's Entrance Exit/Bend Additional Initial Flap
ID
Invert
Invert
Invert
Invert
Drop
Slope Shape
Diameter or
Width
Roughness
Losses
Losses
Losses
Flow Gate
Elevation
Offset Elevation
Offset
Height
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
N
(in)
(in)
(cfs)
1 Link-02
83.78
0.00-199.00
0.00-192.00
0.00
0.0000 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
2 Link-03
524.19
223.00
0.00
211.00
0.00
12.00
2.2900 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
3 Link-04
175.44
223.00
0.00
220.00
0.00
3.00
1.7100 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
4 Link-05
182.89
220.00
0.00
215.00
0.00
5.00
2.7300 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
5 Link-06
545.86
215.00
0.00
197.00
0.00
18.00
3.3000 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
6 Link-07
417.04
211.00
0.00
208.00
0.00
3.00
0.7200 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
7 Link-08
255.16
208.00
0.00
199.00
0.00
9.00
3.5300 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
8 Link-09
88.32
0.00
-197.00
0.00-194.00
0.00
0.0000 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
9 Link-12
143.43
0.00
-192.00
192.00
0.00-192.00
-133.8600 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
10 Link-25
49.86
0.00
0.00
211.00
0.00-211.00-423.1800 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
11 Link-26
78.27
192.00
0.00
191.50
0.00
0.50
0.6400 CIRCULAR
30.000
30.000
0.0150
0.5000
0.5000
0.0000
0.00 No

No. of
Barrels

Pipe Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time
Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity Time
Depth
Depth/
Surcharged
Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec) (min)
(ft)
(min)
1 Link-02
15.72
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
6.48
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
1.69
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
3.55
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
10.05
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
10.65
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
15.72
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
16.48
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
16.05
0 12:02
0.00
0.23
0.00
0.97
0.50
0.00
Calculated
10 Link-25
0.66
0 12:05
0.00
0.23
0.00
0.97
0.50
0.00
Calculated
11 Link-26
0.38
0 00:09
28.41
0.01
2.03 0.64
0.20
0.08
0.00
Calculated

Storage Nodes
Storage Node : Stor-01
Input Data
Invert Elevation (ft)...........................................................
192.00
Max (Rim) Elevation (ft)...................................................
198.00
Max (Rim) Offset (ft).........................................................
6.00
Initial Water Elevation (ft).................................................
193.00
Initial Water Depth (ft)......................................................
1.00
Ponded Area (ft')..............................................................
31740.00
Evaporation Loss.............................................................
0.00
Storage Area Volume Curves
Storage Curve : Storage-01
Stage Storage Storage
Area Volume
(ft) (ft') (ft')
0 31739.49 0.000
1 34022.12 32880.81
2 36531.29 68157.52
3 39096.56 105971.45
4 41717.92 146378.69
5 44395.38 189435.34
6 47481.18 235373.62

E
m
M
m
L
Storage Area Volume Curves
Storage Volume (ft3j
0 20,000 40.04) 00,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 220,000
6----------------------------------------------------------------------------------------- 6
'r.8-------------------------------- ---- 5.8
i.6----------------I----------I---------I---------------4-------------------------------------- •------- 5.6
5.4'--------J--------'--------`--------`------- '--------'--------`-------- ------ '--------J------•------- 5.4
5.2'--------=--------'--------=----- = ' = _------- 5.2
1.8----------------------------------------------- ------------------------------------------------ ------ 4.8
4.6'--------J--------'-------- `-------- `-------- --------'--------`------- ---- '--------J--------•------- 4.6
4.2---------------- 4.2
4 ------ 4
3.8'-------- ------------------`--------`-------- ------- ------ ------- `-------- -------- -------•------- 3.8
#.4
3.2 ----------------- ----- ------- ------ ----- ------- ------ ----- ------- 3.2
3----------------------------------- ----------------------------------------- ------ 3
?.8'-------- J--------'--------`-------- `------- ------ '-------- `-------- `------ '--------J--------•------ 2.8
t.4 - ------------- r------- '------- ------ 2.4
t.2 ; ; � - - - - --- - - - - -- ; ; _------ 2.2
2 ---- ----- ------ ---- ---- ----- ----- ---- ---- ----- ----- 2
1.8j -------------------------------------- ------ 1.8
1.6 r------- -------------------------------------------- ------ 1.6
1.4 ; r r ; : -- - - -- 1.4
1.2------------------------------------------------------------------------------------------------- ----- 1.2
1
#.8 _----'--------=--------'-------=- ' = = 0.8
#.6 ------ ------- ----- ------- ------ ----- ------- ------ 0.6
#.4 -----------I---------I---------------4--------- 4.4
0 0
32,000 33,000 34,000 35,000 363000 373000 38,000 39,000 40,000 41,000 42,000 43,000 44,000 45,000 46,000 47,000
Storage Area (ftxj
- Storage Area - Storage Volume
E
m
a�
m

Storage Node : Stor-01 (continued)
Outflow Weirs
SN Element Weir Flap
ID Type Gate
1 Weir-01 Trapezoidal No
Outflow Orifices
Crest Crest Length Weir Total Discharge
Elevation Offset Height Coefficient
197.00 5.00 15.00 1.00 3.33
SN Element Orifice
Orifice Flap
Circular Rectangular Rectangular
Orifice Orifice
ID Type
Shape Gate
Orifice Orifice Orifice
Invert Coefficient
Diameter Height Width
Elevation
(in) (in) (in)
(ft)
1 Riser-01 Bottom
Rectangular No
72.00 72.00
196.50 0.63
Output Summary Results
Peak Inflow (cfs)...............................................................
35.93
Peak Lateral Inflow (cfs)...................................................
4.81
Peak Outflow (cfs)............................................................
0.38
Peak Exfiltration Flow Rate (cfm).....................................
0.00
Max HGL Elevation Attained (ft).......................................
194.57
Max HGL Depth Attained (ft)............................................
2.57
Average HGL Elevation Attained (ft)................................
193.85
Average HGL Depth Attained (ft).....................................
1.85
Time of Max HGL Occurrence (days hh:mm) ...................
1 00:08
Total Exfiltration Volume (1000-ft3)..................................
0.000
Total Flooded Volume (ac-in)...........................................
0
Total Time Flooded (min) .................................................
0
Total Retention Time (sec) ...............................................
0.00

Project Description
File Name...........................................................
post development 9-18-19 cf.SPF
Project Options
Flow Units..........................................................
CFS
Elevation Type ...................................................
Elevation
Hydrology Method ..............................................
SCS TR-55
Time of Concentration (TOC) Method ................
Kirpich
Link Routing Method ..........................................
Kinematic Wave
Enable Overflow Ponding at Nodes ...................
YES
Skip Steady State Analysis Time Periods ..........
NO
Analysis Options
Start Analysis On ...............................................
Jul 09, 2019
00:00:00
End Analysis On .................................................
Jul 11, 2019
00:00:00
Start Reporting On .............................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .........................................
0
days
Runoff (Dry Weather) Time Step ........................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .......................
0 00:05:00
days hh:mm:ss
Reporting Time Step ..........................................
0 00:05:00
days hh:mm:ss
Routing Time Step .............................................
30
seconds
Number of Elements
Qty
RainGages ........................................................
1
Subbasins............................................................
17
Nodes..................................................................
16
Junctions ....................................................
13
Outfalls......................................................
2
Flow Diversions .........................................
0
Inlets..........................................................
0
Storage Nodes ...........................................
1
Links....................................................................
16
Channels...................................................
2
Pipes..........................................................
11
Pumps........................................................
0
Orifices.......................................................
1
Weirs.........................................................
1
Outlets.......................................................
1
Pollutants...........................................................
0
LandUses..........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
(years) (inches)
1 Rain Gage-001 Time Series TS-10 Cumulative inches North Carolina Nash 10 5.70 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average Flow Total Total Total Peak Time of
ID Curve Slope Length Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) M (ft) (in) (in) (ac-in) (cfs) (days hh:mm:ss)
1 Sub-02 1.56 77.00 25.0000 500.00 5.70 3.22 5.03 7.98 0 00:05:00
2 Sub-03 1.98 77.00 25.0000 500.00 5.70 3.22 6.37 10.11 0 00:05:00
3 Sub-04 2.38 77.00 25.0000 500.00 5.70 3.22 7.65 12.14 0 00:05:00
4 Sub-05 2.49 77.00 25.0000 500.00 5.70 3.22 8.00 12.69 0 00:05:00
5 Sub-06 0.71 77.00 25.0000 500.00 5.70 3.22 2.28 3.60 0 00:05:00
6 Sub-07 0.64 77.00 25.0000 500.00 5.70 3.22 2.06 3.27 0 00:05:00
7 Sub-08 2.32 77.00 25.0000 500.00 5.70 3.22 7.45 11.84 0 00:05:00
8 Sub-09 1.38 88.20 0.5000 500.00 5.70 4.36 6.02 8.65 0 00:07:10
9 Sub-10 0.30 77.00 5.0000 107.16 5.70 3.22 0.97 1.54 0 00:05:00
10 Sub-11 0.05 77.00 5.0000 148.05 5.70 3.20 0.15 0.23 0 00:05:00
11 Sub-12 0.04 77.00 5.0000 78.07 5.70 3.20 0.14 0.23 0 00:05:00
12 Sub-13 0.15 77.00 5.0000 68.43 5.70 3.22 0.47 0.75 0 00:05:00
13 Sub-14 0.22 77.00 5.0000 88.05 5.70 3.22 0.71 1.14 0 00:05:00
14 Sub-15 0.06 77.00 5.0000 123.83 5.70 3.21 0.18 0.29 0 00:05:00
15 Sub-16 0.07 77.00 5.0000 74.76 5.70 3.21 0.23 0.36 0 00:05:00
16 Sub-17 2.50 51.80 2.5000 557.07 5.70 1.12 2.80 3.82 0 00:05:00
17 Sub-18 0.52 49.00 0.5000 383.97 5.70 0.93 0.49 0.64 0 00:05:51

Node Summary
SN Element
Element
Invert
Ground/Rim
Initial
Surcharge
Ponded
Peak
Max HGL
Max
Min
Time of
Total
Total Time
ID
Type
Elevation
(Max)
Water
Elevation
Area
Inflow
Elevation
Surcharge
Freeboard
Peak
Flooded
Flooded
Elevation
Elevation
Attained
Depth
Attained
Flooding
Volume
Attained
Occurrence
(ft)
(ft)
(ft)
(ft)
(ft')
(cfs)
(ft)
(ft)
(ft)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
Junction
223.00
227.00
0.00
0.00
0.00
3.49
223.00
0.00
4.00
0 00:00
0.00
0.00
2 Jun-02
Junction
220.00
224.00
0.00
0.00
0.00
7.30
220.00
0.00
4.00
0 00:00
0.00
0.00
3 Jun-03
Junction
215.00
219.00
0.00
0.00
0.00
20.71
215.00
0.00
4.00
0 00:00
0.00
0.00
4 Jun-04
Junction
197.00
201.00
0.00
0.00
0.00
33.95
197.00
0.00
4.00
0 00:00
0.00
0.00
5 Jun-06
Junction
211.00
215.00
0.00
0.00
0.00
25.11
211.00
0.00
4.00
0 00:00
0.00
0.00
6 Jun-07
Junction
223.00
227.00
0.00
0.00
0.00
13.34
223.00
0.00
4.00
0 00:00
0.00
0.00
7 Jun-08
Junction
208.00
212.00
0.00
0.00
0.00
35.55
208.00
0.00
4.00
0 00:00
0.00
0.00
8 Jun-09
Junction
199.00
203.00
0.00
0.00
0.00
35.55
199.00
0.00
4.00
0 00:00
0.00
0.00
9 Jun-10
Junction
194.00
196.00
0.00
0.00
0.00
34.44
195.47
0.00
0.53
0 00:00
0.00
0.00
10 Jun-11
Junction
193.00
196.00
0.00
0.00
0.00
33.82
194.46
0.00
1.54
0 00:00
0.00
0.00
11 Jun-12
Junction
192.00
199.00
0.00
0.00
0.00
33.62
193.43
0.00
5.57
0 00:00
0.00
0.00
12 Jun-13
Junction
0.00
6.00
0.00
6.00
0.00
3.79
0.00
0.00
6.00
0 00:00
0.00
0.00
13 Jun-14
Junction
192.00
196.00
192.00
0.00
0.00
1.27
192.36
0.00
3.64
0 00:00
0.00
0.00
14 Out-01
Outfall
191.50
1.27
191.86
15 Out-02
Outfall
191.50
0.00
191.50
16 Stor-01
Storage Node
192.00
198.00
193.00
31740.00
75.88
196.55
0.00
0.00

Link Summary
SN Element
Element From To (Outlet) Length
Inlet
Outlet
Average Diameter or
Manning's Peak Design Flow
Peak Flow/ Peak Flow Peak Flow
Peak Flow
Total Time Reported
ID
Type
(Inlet) Node
Invert
Invert
Slope
Height
Roughness Flow
Capacity
Design Flow
Velocity
Depth
Depth/
Surcharged Condition
Node
Elevation Elevation
Ratio
Total Depth
Ratio
(ft)
(ft)
(ft)
N
(in)
(cfs)
(cfs)
(fUsec)
(ft)
(min)
1 Link-02
Pipe
Jun-09 Stor-01
83.78
0.00
0.00
0.0000
0.000
0.0320 35.55
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
Pipe
Jun-07 Jun-06
524.19
223.00
211.00
2.2900
0.000
0.0300 13.34
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
Pipe
Jun-01 Jun-02
175.44
223.00
220.00
1.7100
0.000
0.0300 3.49
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
Pipe
Jun-02 Jun-03
182.89
220.00
215.00
2.7300
0.000
0.0300 7.30
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
Pipe
Jun-03 Jun-04
545.86
215.00
197.00
3.3000
0.000
0.0300 20.71
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
Pipe
Jun-06 Jun-08
417.04
211.00
208.00
0.7200
0.000
0.0300 25.11
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
Pipe
Jun-08 Jun-09
255.16
208.00
199.00
3.5300
0.000
0.0320 35.55
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
Pipe
Jun-04 Jun-10
88.32
0.00
0.00
0.0000
0.000
0.0150 33.95
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
Pipe
Jun-12 Stor-01
143.43
0.00
192.00
-133.8600
0.000
0.0150 33.62
0.00
0.48
0.00
1.39
0.72
0.00 Calculated
10 Link-25
Pipe
Jun-13 Jun-06
49.86
0.00
211.00
-423.1800
0.000
0.0150 3.79
0.00
0.48
0.00
1.39
0.72
0.00 Calculated
11 Link-26
Pipe
Jun-14 Out-01
78.27
192.00
191.50
0.6400
30.000
0.0150 1.27
28.41
0.04
2.93
0.36
0.14
0.00 Calculated
12 Link-10
Channel
Jun-10 Jun-11
183.06
194.00
193.00
0.5500
24.000
0.0320 33.82
67.82
0.50
3.17
1.45
0.73
0.00
13 Link-11
Channel
Jun-11 Jun-12
173.36
193.00
192.00
0.5800
24.000
0.0320 33.62
69.69
0.48
3.22
1.39
0.72
0.00
14 Riser-01
Orifice
Stor-01 Jun-14
192.00
192.00
72.000
0.89
15 Skimmer-01
Outlet
Stor-01 Jun-14
192.00
192.00
0.38
16 Weir-01
Weir
Stor-01 Out-02
192.00
191.50
0.00

Subbasin Hydrology
Subbasin : Sub-02
Input Data
Area(ac)......................................................
1.56
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.56 A 77.00
Composite Area & Weighted CN 1.56 77.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 7.98
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-02
8
7.5
7
6.5
6
5.5
5
4.5
v 4
3.5
3
2.5
2
1.5
0.5
8.5
8
7.5
7
6.5
6
5.5
_ 5
N
4.5
0 4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-03
Input Data
Area(ac)......................................................
1.98
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.98 A 77.00
Composite Area & Weighted CN 1.98 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 10.11
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-03
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
11
10.5
10
9.5
9
8.5
8
7.5
7
_ 6.5
N
� 6
w 5.5
0
� 5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-04
Input Data
Area(ac)......................................................
2.38
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.38 A 77.00
Composite Area & Weighted CN 2.38 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 12.14
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-04
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
13
12.5
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
N
7
w 6.5
0
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-05
Input Data
Area(ac)......................................................
2.49
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.49 A 77.00
Composite Area & Weighted CN 2.49 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 12.69
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-05
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
13.5
13
12.5
12
11.5
11
10.5
10
9.5
9
8.5
_ 8
N 75
C]
7
0 6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-06
Input Data
Area(ac)......................................................
0.71
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.71 A 77.00
Composite Area & Weighted CN 0.71 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 3.60
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-06
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
N
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-07
Input Data
Area(ac)......................................................
0.64
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.64 A 77.00
Composite Area & Weighted CN 0.64 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 3.27
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-07
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
3.6
3.4
3.2
3
2.8
2.6
2.4
2.2
N 2
C]
w 1.8
0
0
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-08
Input Data
Area(ac)......................................................
2.32
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.32 A 77.00
Composite Area & Weighted CN 2.32 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 11.84
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-08
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
12.5
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
N 7
C]
6.5
0 6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-09
Input Data
Area(ac)......................................................
1.38
Weighted Curve Number .............................
88.20
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
Open Water
1.11
A
98.00
50 - 75% grass cover, Fair
0.28
A
49.00
Composite Area & Weighted CN
1.39
88.20
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 0.5
Computed TOC (min) .................................. 7.18
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 4.36
Peak Runoff (cfs)......................................... 8.65
Weighted Curve Number ............................. 88.20
Time of Concentration (days hh:mm:ss) ...... 0 00:07:11

Subbasin : Sub-09
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
9
8.5
8
7.5
7
6.5
6
5.5
N 5
C]
w 4.5
O
C
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-10
Input Data
Area(ac)......................................................
0.30
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
107.16
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.30 A 77.00
Composite Area & Weighted CN 0.30 77.00
Time of Concentration
Flow Length (ft)........................................... 107.16
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.90
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 1.54
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:54

Subbasin : Sub-10
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
1.7
1.6
1.5
1.4
1.3
1.2
1.1
_ 1
N
0.9
0.8
O✓
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-11
Input Data
Area(ac)......................................................
0.05
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
148.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.05 A 77.00
Composite Area & Weighted CN 0.05 77.00
Time of Concentration
Flow Length (ft)........................................... 148.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.16
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.20
Peak Runoff (cfs)......................................... 0.23
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:10

Subbasin : Sub-11
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.24
0.23
0.22
0.21
0.2
0.19
0.18
0.17
0.16
0.15
0.14
N
0.13
w 0.12
0
0.11
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-12
Input Data
Area(ac)......................................................
0.04
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
78.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.04 A 77.00
Composite Area & Weighted CN 0.04 77.00
Time of Concentration
Flow Length (ft)........................................... 78.07
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.71
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.20
Peak Runoff (cfs)......................................... 0.23
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:43

Subbasin : Sub-12
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.24
0.23
0.22
0.21
0.2
0.19
0.18
0.17
0.16
0.15
0.14
N
0.13
w 0.12
0
0.11
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-13
Input Data
Area(ac)......................................................
0.15
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
68.43
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.15 A 77.00
Composite Area & Weighted CN 0.15 77.00
Time of Concentration
Flow Length (ft)........................................... 68.43
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.64
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 0.75
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:38

Subbasin : Sub-13
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.8
0.75
0.7
0.65
0.6
0.55
0.5
N 0.45
w 0.4
0
� 0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-14
Input Data
Area(ac)......................................................
0.22
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
88.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.22 A 77.00
Composite Area & Weighted CN 0.22 77.00
Time of Concentration
Flow Length (ft)........................................... 88.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.78
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.22
Peak Runoff (cfs)......................................... 1.14
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:47

Subbasin : Sub-14
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
1.2
1.15
1.1
1.05
0.95
0.9
0.85
0.8
0.75
0.7
N
0.65
w 0.6
0
S 0.55
1h 0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 8 8 10 12 14 18 18 20 22 24 28 28 30 32 34 38 38 40 42 44 46
Time [hrs]

Subbasin : Sub-15
Input Data
Area(ac)......................................................
0.06
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
123.83
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.06 A 77.00
Composite Area & Weighted CN 0.06 77.00
Time of Concentration
Flow Length (ft)........................................... 123.83
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.01
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.21
Peak Runoff (cfs)......................................... 0.29
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:01

Subbasin : Sub-15
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.31
0.3
0.29
0.28
0.27
0.26
0.25
0.24
0.23
0.22
0.21
0.2
0.19
0.18
N
� 0.17
0.16
0 0.15
0.14
0.13
0.12
0.11
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-16
Input Data
Area(ac)......................................................
0.07
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
74.76
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.07 A 77.00
Composite Area & Weighted CN 0.07 77.00
Time of Concentration
Flow Length (ft)........................................... 74.76
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.68
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 3.21
Peak Runoff (cfs)......................................... 0.36
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:41

Subbasin : Sub-16
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0.38
0.36
0.34
0.32
0.3
0.28
0.26
0.24
N 0.22
v 0.2
0
0.18
1h 0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-17
Input Data
Area(ac)......................................................
2.50
Weighted Curve Number .............................
51.80
Average Slope (%)......................................
2.5000
Flow Length (ft)...........................................
557.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
50 - 75% grass cover, Fair
2.25
A
49.00
Fallow, bare soil
0.25
A
77.00
Composite Area & Weighted CN
2.50
51.80
Time of Concentration
Flow Length (ft)........................................... 557.07
Slope (%).................................................... 2.5
Computed TOC (min) .................................. 4.20
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 1.12
Peak Runoff (cfs)......................................... 3.82
Weighted Curve Number ............................. 51.80
Time of Concentration (days hh:mm:ss) ...... 0 00:04:12

Subbasin : Sub-17
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
4
3.8
3.6
3.4
3.2
3
2.8
2.6
2.4
N 22
C]
-� 2
0
C
1.8
O✓
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-18
Input Data
Area(ac)......................................................
0.52
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
383.97
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 0.52 A 49.00
Composite Area & Weighted CN 0.52 49.00
Time of Concentration
Flow Length (ft)........................................... 383.97
Slope(%).................................................... 0.5
Computed TOC (min) .................................. 5.86
Subbasin Runoff Results
Total Rainfall (in) ......................................... 5.70
Total Runoff (in) ........................................... 0.93
Peak Runoff (cfs)......................................... 0.64
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:05:52

Subbasin : Sub-18
8.5
8
7.5
7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.7
0.65
0.6
0.55
0.5
0.45
N 0.4
w 0.35
0
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Junction Input
SN Element
Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID
Elevation
(Max)
(Max)
Water Water
Elevation
Depth
Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft)
(ft)
(ft)
(ft) (ft)
(ft)
(ft)
(ft')
(in)
1 Jun-01
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
2 Jun-02
220.00
224.00
4.00
0.00-220.00
0.00
-224.00
0.00
0.00
3 Jun-03
215.00
219.00
4.00
0.00-215.00
0.00
-219.00
0.00
0.00
4 Jun-04
197.00
201.00
4.00
0.00-197.00
0.00
-201.00
0.00
0.00
5 Jun-06
211.00
215.00
4.00
0.00-211.00
0.00
-215.00
0.00
0.00
6 Jun-07
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
7 Jun-08
208.00
212.00
4.00
0.00-208.00
0.00
-212.00
0.00
0.00
8 Jun-09
199.00
203.00
4.00
0.00-199.00
0.00
-203.00
0.00
0.00
9 Jun-10
194.00
196.00
2.00
0.00-194.00
0.00
-196.00
0.00
0.00
10 Jun-11
193.00
196.00
3.00
0.00-193.00
0.00
-196.00
0.00
0.00
11 Jun-12
192.00
199.00
7.00
0.00-192.00
0.00
-199.00
0.00
0.00
12 Jun-13
0.00
6.00
6.00
0.00 0.00
6.00
0.00
0.00
0.00
13 Jun-14
192.00
196.00
4.00
192.00 0.00
0.00
-196.00
0.00
0.00

Junction Results
SN Element
Peak
Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of
Total Total Time
ID
Inflow
Lateral
Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded
Flooded
Inflow
Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs)
(cfs)
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
3.49
3.49
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
2 Jun-02
7.30
3.81
220.00
0.00
0.00
4.00
220.00
0.00
0 00:00
0 00:00
0.00
0.00
3 Jun-03
20.71
13.41
215.00
0.00
0.00
4.00
215.00
0.00
0 00:00
0 00:00
0.00
0.00
4 Jun-04
33.95
13.24
197.00
0.00
0.00
4.00
197.00
0.00
0 00:00
0 00:00
0.00
0.00
5 Jun-06
25.11
8.24
211.00
0.00
0.00
4.00
211.00
0.00
0 00:00
0 00:00
0.00
0.00
6 Jun-07
13.34
13.34
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
7 Jun-08
35.55
10.43
208.00
0.00
0.00
4.00
208.00
0.00
0 00:00
0 00:00
0.00
0.00
8 Jun-09
35.55
0.00
199.00
0.00
0.00
4.00
199.00
0.00
0 00:00
0 00:00
0.00
0.00
9 Jun-10
34.44
0.62
195.47
1.47
0.00
0.53
194.07
0.07
0 12:00
0 00:00
0.00
0.00
10 Jun-11
33.82
0.00
194.46
1.46
0.00
1.54
193.07
0.07
0 12:01
0 00:00
0.00
0.00
11 Jun-12
33.62
0.00
193.43
1.43
0.00
5.57
192.07
0.07
0 12:01
0 00:00
0.00
0.00
12 Jun-13
3.79
3.79
0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00
0.00
0.00
13 Jun-14
1.27
0.00
192.36
0.36
0.00
3.64
192.22
0.22
0 18:58
0 00:00
0.00
0.00

Channel Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial Flap
ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Gate
Elevation Offset Elevation Offset
(ft) (ft) (ft) (ft) (ft) (ft) N (ft) (ft) (cfs)
1 Link-10 183.06 194.00 0.00 193.00 0.00 1.00 0.5500 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No
2 Link-11 173.36 193.00 0.00 192.00 0.00 1.00 0.5800 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No

Channel Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity
Time
Depth
Depth/
Surcharged Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec)
(min)
(ft)
(min)
1 Link-10
33.82
0 12:01
67.82
0.50
3.17
0.96
1.45
0.73
0.00
2 Link-11
33.62
0 12:01
69.69
0.48
3.22
0.90
1.39
0.72
0.00

Pipe Input
SN Element
Length
Inlet
Inlet
Outlet
Outlet
Total
Average Pipe
Pipe
Pipe
Manning's Entrance Exit/Bend Additional Initial Flap
ID
Invert
Invert
Invert
Invert
Drop
Slope Shape
Diameter or
Width
Roughness
Losses
Losses
Losses
Flow Gate
Elevation
Offset Elevation
Offset
Height
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
N
(in)
(in)
(cfs)
1 Link-02
83.78
0.00-199.00
0.00-192.00
0.00
0.0000 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
2 Link-03
524.19
223.00
0.00
211.00
0.00
12.00
2.2900 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
3 Link-04
175.44
223.00
0.00
220.00
0.00
3.00
1.7100 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
4 Link-05
182.89
220.00
0.00
215.00
0.00
5.00
2.7300 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
5 Link-06
545.86
215.00
0.00
197.00
0.00
18.00
3.3000 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
6 Link-07
417.04
211.00
0.00
208.00
0.00
3.00
0.7200 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
7 Link-08
255.16
208.00
0.00
199.00
0.00
9.00
3.5300 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
8 Link-09
88.32
0.00
-197.00
0.00-194.00
0.00
0.0000 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
9 Link-12
143.43
0.00
-192.00
192.00
0.00-192.00
-133.8600 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
10 Link-25
49.86
0.00
0.00
211.00
0.00-211.00-423.1800 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
11 Link-26
78.27
192.00
0.00
191.50
0.00
0.50
0.6400 CIRCULAR
30.000
30.000
0.0150
0.5000
0.5000
0.0000
0.00 No

No. of
Barrels

Pipe Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time
Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity Time
Depth
Depth/
Surcharged
Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec) (min)
(ft)
(min)
1 Link-02
35.55
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
13.34
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
3.49
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
7.30
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
20.71
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
25.11
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
35.55
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
33.95
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
33.62
0 12:01
0.00
0.48
0.00
1.39
0.72
0.00
Calculated
10 Link-25
3.79
0 12:05
0.00
0.48
0.00
1.39
0.72
0.00
Calculated
11 Link-26
1.27
0 18:58
28.41
0.04
2.93 0.45
0.36
0.14
0.00
Calculated

Storage Nodes
Storage Node : Stor-01
Input Data
Invert Elevation (ft)...........................................................
192.00
Max (Rim) Elevation (ft)...................................................
198.00
Max (Rim) Offset (ft).........................................................
6.00
Initial Water Elevation (ft).................................................
193.00
Initial Water Depth (ft)......................................................
1.00
Ponded Area (ft')..............................................................
31740.00
Evaporation Loss.............................................................
0.00
Storage Area Volume Curves
Storage Curve : Storage-01
Stage Storage Storage
Area Volume
(ft) (ft') (ft')
0 31739.49 0.000
1 34022.12 32880.81
2 36531.29 68157.52
3 39096.56 105971.45
4 41717.92 146378.69
5 44395.38 189435.34
6 47481.18 235373.62

E
m
M
m
L
Storage Area Volume Curves
Storage Volume (ft3j
0 20,000 40.04) 00,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 220,000
6----------------------------------------------------------------------------------------- 6
'r.8-------------------------------- ---- 5.8
i.6----------------I----------I---------I---------------4-------------------------------------- •------- 5.6
5.4'--------J--------'--------`--------`------- '--------'--------`-------- ------ '--------J------•------- 5.4
5.2'--------=--------'--------=----- = ' = _------- 5.2
1.8----------------------------------------------- ------------------------------------------------ ------ 4.8
4.6'--------J--------'-------- `-------- `-------- --------'--------`------- ---- '--------J--------•------- 4.6
4.2---------------- 4.2
4 ------ 4
3.8'-------- ------------------`--------`-------- ------- ------ ------- `-------- -------- -------•------- 3.8
#.4
3.2 ----------------- ----- ------- ------ ----- ------- ------ ----- ------- 3.2
3----------------------------------- ----------------------------------------- ------ 3
?.8'-------- J--------'--------`-------- `------- ------ '-------- `-------- `------ '--------J--------•------ 2.8
t.4 - ------------- r------- '------- ------ 2.4
t.2 ; ; � - - - - --- - - - - -- ; ; _------ 2.2
2 ---- ----- ------ ---- ---- ----- ----- ---- ---- ----- ----- 2
1.8j -------------------------------------- ------ 1.8
1.6 r------- -------------------------------------------- ------ 1.6
1.4 ; r r ; : -- - - -- 1.4
1.2------------------------------------------------------------------------------------------------- ----- 1.2
1
#.8 _----'--------=--------'-------=- ' = = 0.8
#.6 ------ ------- ----- ------- ------ ----- ------- ------ 0.6
#.4 -----------I---------I---------------4--------- 4.4
0 0
32,000 33,000 34,000 35,000 363000 373000 38,000 39,000 40,000 41,000 42,000 43,000 44,000 45,000 46,000 47,000
Storage Area (ftxj
- Storage Area - Storage Volume
E
m
a�
m

Storage Node : Stor-01 (continued)
Outflow Weirs
SN Element Weir Flap
ID Type Gate
1 Weir-01 Trapezoidal No
Outflow Orifices
Crest Crest Length Weir Total Discharge
Elevation Offset Height Coefficient
197.00 5.00 15.00 1.00 3.33
SN Element Orifice
Orifice Flap
Circular Rectangular Rectangular
Orifice Orifice
ID Type
Shape Gate
Orifice Orifice Orifice
Invert Coefficient
Diameter Height Width
Elevation
(in) (in) (in)
(ft)
1 Riser-01 Bottom
Rectangular No
72.00 72.00
196.50 0.63
Output Summary Results
Peak Inflow (cfs)...............................................................
75.88
Peak Lateral Inflow (cfs)...................................................
8.31
Peak Outflow (cfs)............................................................
1.27
Peak Exfiltration Flow Rate (cfm).....................................
0.00
Max HGL Elevation Attained (ft).......................................
196.55
Max HGL Depth Attained (ft)............................................
4.55
Average HGL Elevation Attained (ft)................................
195.35
Average HGL Depth Attained (ft).....................................
3.35
Time of Max HGL Occurrence (days hh:mm) ...................
0 18:58
Total Exfiltration Volume (1000-ft3)..................................
0.000
Total Flooded Volume (ac-in)...........................................
0
Total Time Flooded (min) .................................................
0
Total Retention Time (sec) ...............................................
0.00

Project Description
File Name...........................................................
post development 9-18-19 cf.SPF
Project Options
Flow Units..........................................................
CFS
Elevation Type ...................................................
Elevation
Hydrology Method ..............................................
SCS TR-55
Time of Concentration (TOC) Method ................
Kirpich
Link Routing Method ..........................................
Kinematic Wave
Enable Overflow Ponding at Nodes ...................
YES
Skip Steady State Analysis Time Periods ..........
NO
Analysis Options
Start Analysis On ...............................................
Jul 09, 2019
00:00:00
End Analysis On .................................................
Jul 11, 2019
00:00:00
Start Reporting On .............................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .........................................
0
days
Runoff (Dry Weather) Time Step ........................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .......................
0 00:05:00
days hh:mm:ss
Reporting Time Step ..........................................
0 00:05:00
days hh:mm:ss
Routing Time Step .............................................
30
seconds
Number of Elements
Qty
RainGages ........................................................
1
Subbasins............................................................
17
Nodes..................................................................
16
Junctions ....................................................
13
Outfalls......................................................
2
Flow Diversions .........................................
0
Inlets..........................................................
0
Storage Nodes ...........................................
1
Links....................................................................
16
Channels...................................................
2
Pipes..........................................................
11
Pumps........................................................
0
Orifices.......................................................
1
Weirs.........................................................
1
Outlets.......................................................
1
Pollutants...........................................................
0
LandUses..........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
(years) (inches)
1 Rain Gage-001 Time Series TS-25 Cumulative inches North Carolina Nash 25 6.60 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average Flow Total Total Total Peak Time of
ID Curve Slope Length Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) M (ft) (in) (in) (ac-in) (cfs) (days hh:mm:ss)
1 Sub-02 1.56 77.00 25.0000 500.00 6.60 4.01 6.26 9.90 0 00:05:00
2 Sub-03 1.98 77.00 25.0000 500.00 6.60 4.01 7.94 12.54 0 00:05:00
3 Sub-04 2.38 77.00 25.0000 500.00 6.60 4.01 9.53 15.06 0 00:05:00
4 Sub-05 2.49 77.00 25.0000 500.00 6.60 4.01 9.96 15.75 0 00:05:00
5 Sub-06 0.71 77.00 25.0000 500.00 6.60 4.01 2.83 4.46 0 00:05:00
6 Sub-07 0.64 77.00 25.0000 500.00 6.60 4.01 2.57 4.06 0 00:05:00
7 Sub-08 2.32 77.00 25.0000 500.00 6.60 4.01 9.28 14.69 0 00:05:00
8 Sub-09 1.38 88.20 0.5000 500.00 6.60 5.23 7.22 10.27 0 00:07:10
9 Sub-10 0.30 77.00 5.0000 107.16 6.60 4.01 1.21 1.91 0 00:05:00
10 Sub-11 0.05 77.00 5.0000 148.05 6.60 3.99 0.19 0.28 0 00:05:00
11 Sub-12 0.04 77.00 5.0000 78.07 6.60 3.99 0.17 0.28 0 00:05:00
12 Sub-13 0.15 77.00 5.0000 68.43 6.60 4.01 0.58 0.93 0 00:05:00
13 Sub-14 0.22 77.00 5.0000 88.05 6.60 4.01 0.89 1.42 0 00:05:00
14 Sub-15 0.06 77.00 5.0000 123.83 6.60 4.00 0.22 0.37 0 00:05:00
15 Sub-16 0.07 77.00 5.0000 74.76 6.60 4.00 0.29 0.45 0 00:05:00
16 Sub-17 2.50 51.80 2.5000 557.07 6.60 1.60 4.00 5.76 0 00:05:00
17 Sub-18 0.52 49.00 0.5000 383.97 6.60 1.37 0.72 0.97 0 00:05:51

Node Summary
SN Element
Element
Invert
Ground/Rim
Initial
Surcharge
Ponded
Peak
Max HGL
Max
Min
Time of
Total
Total Time
ID
Type
Elevation
(Max)
Water
Elevation
Area
Inflow
Elevation
Surcharge
Freeboard
Peak
Flooded
Flooded
Elevation
Elevation
Attained
Depth
Attained
Flooding
Volume
Attained
Occurrence
(ft)
(ft)
(ft)
(ft)
(ft')
(cfs)
(ft)
(ft)
(ft)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
Junction
223.00
227.00
0.00
0.00
0.00
4.33
223.00
0.00
4.00
0 00:00
0.00
0.00
2 Jun-02
Junction
220.00
224.00
0.00
0.00
0.00
9.07
220.00
0.00
4.00
0 00:00
0.00
0.00
3 Jun-03
Junction
215.00
219.00
0.00
0.00
0.00
25.70
215.00
0.00
4.00
0 00:00
0.00
0.00
4 Jun-04
Junction
197.00
201.00
0.00
0.00
0.00
42.14
197.00
0.00
4.00
0 00:00
0.00
0.00
5 Jun-06
Junction
211.00
215.00
0.00
0.00
0.00
32.35
211.00
0.00
4.00
0 00:00
0.00
0.00
6 Jun-07
Junction
223.00
227.00
0.00
0.00
0.00
16.55
223.00
0.00
4.00
0 00:00
0.00
0.00
7 Jun-08
Junction
208.00
212.00
0.00
0.00
0.00
45.31
208.00
0.00
4.00
0 00:00
0.00
0.00
8 Jun-09
Junction
199.00
203.00
0.00
0.00
0.00
45.31
199.00
0.00
4.00
0 00:00
0.00
0.00
9 Jun-10
Junction
194.00
196.00
0.00
0.00
0.00
42.99
195.63
0.00
0.37
0 00:00
0.00
0.00
10 Jun-11
Junction
193.00
196.00
0.00
0.00
0.00
42.23
194.61
0.00
1.39
0 00:00
0.00
0.00
11 Jun-12
Junction
192.00
199.00
0.00
0.00
0.00
42.02
193.59
0.00
5.41
0 00:00
0.00
0.00
12 Jun-13
Junction
0.00
6.00
0.00
6.00
0.00
5.56
0.00
0.00
6.00
0 00:00
0.00
0.00
13 Jun-14
Junction
192.00
196.00
192.00
0.00
0.00
4.00
192.63
0.00
3.37
0 00:00
0.00
0.00
14 Out-01
Outfall
191.50
4.00
192.13
15 Out-02
Outfall
191.50
0.00
191.50
16 Stor-01
Storage Node
192.00
198.00
193.00
31740.00
95.30
196.63
0.00
0.00

Link Summary
SN Element
Element From To (Outlet) Length
Inlet
Outlet
Average Diameter or
Manning's Peak Design Flow
Peak Flow/ Peak Flow Peak Flow
Peak Flow
Total Time Reported
ID
Type
(Inlet) Node
Invert
Invert
Slope
Height
Roughness Flow
Capacity
Design Flow
Velocity
Depth
Depth/
Surcharged Condition
Node
Elevation Elevation
Ratio
Total Depth
Ratio
(ft)
(ft)
(ft)
N
(in)
(cfs)
(cfs)
(fUsec)
(ft)
(min)
1 Link-02
Pipe
Jun-09 Stor-01
83.78
0.00
0.00
0.0000
0.000
0.0320 45.31
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
Pipe
Jun-07 Jun-06
524.19
223.00
211.00
2.2900
0.000
0.0300 16.55
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
Pipe
Jun-01 Jun-02
175.44
223.00
220.00
1.7100
0.000
0.0300 4.33
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
Pipe
Jun-02 Jun-03
182.89
220.00
215.00
2.7300
0.000
0.0300 9.07
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
Pipe
Jun-03 Jun-04
545.86
215.00
197.00
3.3000
0.000
0.0300 25.70
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
Pipe
Jun-06 Jun-08
417.04
211.00
208.00
0.7200
0.000
0.0300 32.35
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
Pipe
Jun-08 Jun-09
255.16
208.00
199.00
3.5300
0.000
0.0320 45.31
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
Pipe
Jun-04 Jun-10
88.32
0.00
0.00
0.0000
0.000
0.0150 42.14
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
Pipe
Jun-12 Stor-01
143.43
0.00
192.00
-133.8600
0.000
0.0150 42.02
0.00
0.60
0.00
1.54
0.79
0.00 Calculated
10 Link-25
Pipe
Jun-13 Jun-06
49.86
0.00
211.00
-423.1800
0.000
0.0150 5.56
0.00
0.60
0.00
1.54
0.79
0.00 Calculated
11 Link-26
Pipe
Jun-14 Out-01
78.27
192.00
191.50
0.6400
30.000
0.0150 4.00
28.41
0.14
4.08
0.63
0.25
0.00 Calculated
12 Link-10
Channel
Jun-10 Jun-11
183.06
194.00
193.00
0.5500
24.000
0.0320 42.23
67.82
0.62
3.36
1.61
0.81
0.00
13 Link-11
Channel
Jun-11 Jun-12
173.36
193.00
192.00
0.5800
24.000
0.0320 42.02
69.69
0.60
3.42
1.54
0.79
0.00
14 Riser-01
Orifice
Stor-01 Jun-14
192.00
192.00
72.000
3.62
15 Skimmer-01
Outlet
Stor-01 Jun-14
192.00
192.00
0.38
16 Weir-01
Weir
Stor-01 Out-02
192.00
191.50
0.00

Subbasin Hydrology
Subbasin : Sub-02
Input Data
Area(ac)......................................................
1.56
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.56 A 77.00
Composite Area & Weighted CN 1.56 77.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 9.90
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-02
9.5
9
8.5
8
7.5
7
6.5
6
5.5
5
° 4.5
4
3.5
3
2.5
2
1.5
0.5
10.5
10
9.5
9
8.5
8
7.5
7
6.5
N 6
v 5.5
0 5
1h 4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-03
Input Data
Area(ac)......................................................
1.98
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.98 A 77.00
Composite Area & Weighted CN 1.98 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 12.54
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-03
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
13.5
13
12.5
12
11.5
11
10.5
10
9.5
9
8.5
_ 8
N 75
C]
7
0 6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-04
Input Data
Area(ac)......................................................
2.38
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.38 A 77.00
Composite Area & Weighted CN 2.38 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 15.06
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-04
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
17
16
15
14
13
12
11
_ 10
N
9
0 8
7
6
5
4
3
2
1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-05
Input Data
Area(ac)......................................................
2.49
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.49 A 77.00
Composite Area & Weighted CN 2.49 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 15.75
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-05
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
17
16
15
14
13
12
11
_ 10
N
9
0 8
7
6
5
4
3
2
1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-06
Input Data
Area(ac)......................................................
0.71
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.71 A 77.00
Composite Area & Weighted CN 0.71 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 4.46
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-06
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
3
2.8
N
2.6
w 2.4
0
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-07
Input Data
Area(ac)......................................................
0.64
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.64 A 77.00
Composite Area & Weighted CN 0.64 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 4.06
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-07
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
4.4
4.2
4
3.8
3.6
3.4
3.2
3
2.8
_ 2.6
N
2.4
w 2.2
O
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-08
Input Data
Area(ac)......................................................
2.32
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.32 A 77.00
Composite Area & Weighted CN 2.32 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 14.69
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-08
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
15.5
15
14.5
14
13.5
13
12.5
12
11.5
11
10.5
10
9.5
9
8.5
8
0 7.5
� 7
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-09
Input Data
Area(ac)......................................................
1.38
Weighted Curve Number .............................
88.20
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
Open Water
1.11
A
98.00
50 - 75% grass cover, Fair
0.28
A
49.00
Composite Area & Weighted CN
1.39
88.20
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 0.5
Computed TOC (min) .................................. 7.18
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 5.23
Peak Runoff (cfs)......................................... 10.27
Weighted Curve Number ............................. 88.20
Time of Concentration (days hh:mm:ss) ...... 0 00:07:11

Subbasin : Sub-09
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
10.5
10
9.5
9
8.5
8
7.5
7
6.5
N 6
v 5.5
0 5
1h 4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-10
Input Data
Area(ac)......................................................
0.30
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
107.16
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.30 A 77.00
Composite Area & Weighted CN 0.30 77.00
Time of Concentration
Flow Length (ft)........................................... 107.16
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.90
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 1.91
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:54

Subbasin : Sub-10
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
2.1
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
N 1.2
v 1.1
0 1
1h 0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-11
Input Data
Area(ac)......................................................
0.05
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
148.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.05 A 77.00
Composite Area & Weighted CN 0.05 77.00
Time of Concentration
Flow Length (ft)........................................... 148.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.16
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 3.99
Peak Runoff (cfs)......................................... 0.28
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:10

Subbasin : Sub-11
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.31
0.3
0.29
0.28
0.27
0.26
0.25
0.24
0.23
0.22
0.21
0.2
0.19
0.18
N
� 0.17
0.16
0 0.15
0.14
0.13
0.12
0.11
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-12
Input Data
Area(ac)......................................................
0.04
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
78.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.04 A 77.00
Composite Area & Weighted CN 0.04 77.00
Time of Concentration
Flow Length (ft)........................................... 78.07
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.71
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 3.99
Peak Runoff (cfs)......................................... 0.28
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:43

Subbasin : Sub-12
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.31
0.3
0.29
0.28
0.27
0.26
0.25
0.24
0.23
0.22
0.21
0.2
0.19
0.18
N
� 0.17
0.16
0 0.15
0.14
0.13
0.12
0.11
0.1
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
0.01
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-13
Input Data
Area(ac)......................................................
0.15
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
68.43
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.15 A 77.00
Composite Area & Weighted CN 0.15 77.00
Time of Concentration
Flow Length (ft)........................................... 68.43
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.64
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 0.93
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:38

Subbasin : Sub-13
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
1
0.95
0.9
0.85
0.8
0.75
0.7
0.65
0.6
N 0.55
w 0.5
0
0.45
O✓
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-14
Input Data
Area(ac)......................................................
0.22
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
88.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.22 A 77.00
Composite Area & Weighted CN 0.22 77.00
Time of Concentration
Flow Length (ft)........................................... 88.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.78
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.01
Peak Runoff (cfs)......................................... 1.42
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:47

Subbasin : Sub-14
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
1.55
1.5
1.45
1.4
1.35
1.3
1.25
1.2
1.15
1.05
0.95
0.9
0.85
0.8
6 0.75
� 0.7
0.65
0.6
0.55
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-15
Input Data
Area(ac)......................................................
0.06
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
123.83
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.06 A 77.00
Composite Area & Weighted CN 0.06 77.00
Time of Concentration
Flow Length (ft)........................................... 123.83
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.01
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.00
Peak Runoff (cfs)......................................... 0.37
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:01

Subbasin : Sub-15
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.4
0.38
0.36
0.34
0.32
0.3
0.28
0.26
0.24
0.22
w 0.2
0
O✓
0.18
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-16
Input Data
Area(ac)......................................................
0.07
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
74.76
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.07 A 77.00
Composite Area & Weighted CN 0.07 77.00
Time of Concentration
Flow Length (ft)........................................... 74.76
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.68
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 4.00
Peak Runoff (cfs)......................................... 0.45
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:41

Subbasin : Sub-16
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.48
0.46
0.44
0.42
0.4
0.38
0.36
0.34
0.32
0.3
0.28
N
0.26
w 0.24
O
0.22
0.2
0.18
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-17
Input Data
Area(ac)......................................................
2.50
Weighted Curve Number .............................
51.80
Average Slope (%)......................................
2.5000
Flow Length (ft)...........................................
557.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
50 - 75% grass cover, Fair
2.25
A
49.00
Fallow, bare soil
0.25
A
77.00
Composite Area & Weighted CN
2.50
51.80
Time of Concentration
Flow Length (ft)........................................... 557.07
Slope (%).................................................... 2.5
Computed TOC (min) .................................. 4.20
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 1.60
Peak Runoff (cfs)......................................... 5.76
Weighted Curve Number ............................. 51.80
Time of Concentration (days hh:mm:ss) ...... 0 00:04:12

Subbasin : Sub-17
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
6.2
6
5.8
5.6
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
0 3
� 2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-18
Input Data
Area(ac)......................................................
0.52
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
383.97
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 0.52 A 49.00
Composite Area & Weighted CN 0.52 49.00
Time of Concentration
Flow Length (ft)........................................... 383.97
Slope(%).................................................... 0.5
Computed TOC (min) .................................. 5.86
Subbasin Runoff Results
Total Rainfall (in) ......................................... 6.60
Total Runoff (in) ........................................... 1.37
Peak Runoff (cfs)......................................... 0.97
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:05:52

Subbasin : Sub-18
10
9.5
9
8.5
8
7.5
7
6.5
6
� 5.5
v 5
4.5
4
3.5
3
2.5
2
1.5
0.5
1.05
0.95
0.9
0.85
0.8
0.75
0.7
0.65
N 0.6
v 0.55
0.5
1h 0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Junction Input
SN Element
Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID
Elevation
(Max)
(Max)
Water Water
Elevation
Depth
Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft)
(ft)
(ft)
(ft) (ft)
(ft)
(ft)
(ft')
(in)
1 Jun-01
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
2 Jun-02
220.00
224.00
4.00
0.00-220.00
0.00
-224.00
0.00
0.00
3 Jun-03
215.00
219.00
4.00
0.00-215.00
0.00
-219.00
0.00
0.00
4 Jun-04
197.00
201.00
4.00
0.00-197.00
0.00
-201.00
0.00
0.00
5 Jun-06
211.00
215.00
4.00
0.00-211.00
0.00
-215.00
0.00
0.00
6 Jun-07
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
7 Jun-08
208.00
212.00
4.00
0.00-208.00
0.00
-212.00
0.00
0.00
8 Jun-09
199.00
203.00
4.00
0.00-199.00
0.00
-203.00
0.00
0.00
9 Jun-10
194.00
196.00
2.00
0.00-194.00
0.00
-196.00
0.00
0.00
10 Jun-11
193.00
196.00
3.00
0.00-193.00
0.00
-196.00
0.00
0.00
11 Jun-12
192.00
199.00
7.00
0.00-192.00
0.00
-199.00
0.00
0.00
12 Jun-13
0.00
6.00
6.00
0.00 0.00
6.00
0.00
0.00
0.00
13 Jun-14
192.00
196.00
4.00
192.00 0.00
0.00
-196.00
0.00
0.00

Junction Results
SN Element
Peak
Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of
Total Total Time
ID
Inflow
Lateral
Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded
Flooded
Inflow
Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs)
(cfs)
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
4.33
4.33
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
2 Jun-02
9.07
4.74
220.00
0.00
0.00
4.00
220.00
0.00
0 00:00
0 00:00
0.00
0.00
3 Jun-03
25.70
16.64
215.00
0.00
0.00
4.00
215.00
0.00
0 00:00
0 00:00
0.00
0.00
4 Jun-04
42.14
16.43
197.00
0.00
0.00
4.00
197.00
0.00
0 00:00
0 00:00
0.00
0.00
5 Jun-06
32.35
10.24
211.00
0.00
0.00
4.00
211.00
0.00
0 00:00
0 00:00
0.00
0.00
6 Jun-07
16.55
16.55
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
7 Jun-08
45.31
12.95
208.00
0.00
0.00
4.00
208.00
0.00
0 00:00
0 00:00
0.00
0.00
8 Jun-09
45.31
0.00
199.00
0.00
0.00
4.00
199.00
0.00
0 00:00
0 00:00
0.00
0.00
9 Jun-10
42.99
0.97
195.63
1.63
0.00
0.37
194.08
0.08
0 12:00
0 00:00
0.00
0.00
10 Jun-11
42.23
0.00
194.61
1.61
0.00
1.39
193.08
0.08
0 12:00
0 00:00
0.00
0.00
11 Jun-12
42.02
0.00
193.59
1.59
0.00
5.41
192.08
0.08
0 12:01
0 00:00
0.00
0.00
12 Jun-13
5.56
5.56
0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00
0.00
0.00
13 Jun-14
4.00
0.00
192.63
0.63
0.00
3.37
192.26
0.26
0 13:50
0 00:00
0.00
0.00

Channel Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial Flap
ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Gate
Elevation Offset Elevation Offset
(ft) (ft) (ft) (ft) (ft) (ft) N (ft) (ft) (cfs)
1 Link-10 183.06 194.00 0.00 193.00 0.00 1.00 0.5500 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No
2 Link-11 173.36 193.00 0.00 192.00 0.00 1.00 0.5800 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No

Channel Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity
Time
Depth
Depth/
Surcharged Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec)
(min)
(ft)
(min)
1 Link-10
42.23
0 12:00
67.82
0.62
3.36
0.91
1.61
0.81
0.00
2 Link-11
42.02
0 12:01
69.69
0.60
3.42
0.84
1.54
0.79
0.00

Pipe Input
SN Element
Length
Inlet
Inlet
Outlet
Outlet
Total
Average Pipe
Pipe
Pipe
Manning's Entrance Exit/Bend Additional Initial Flap
ID
Invert
Invert
Invert
Invert
Drop
Slope Shape
Diameter or
Width
Roughness
Losses
Losses
Losses
Flow Gate
Elevation
Offset Elevation
Offset
Height
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
N
(in)
(in)
(cfs)
1 Link-02
83.78
0.00-199.00
0.00-192.00
0.00
0.0000 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
2 Link-03
524.19
223.00
0.00
211.00
0.00
12.00
2.2900 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
3 Link-04
175.44
223.00
0.00
220.00
0.00
3.00
1.7100 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
4 Link-05
182.89
220.00
0.00
215.00
0.00
5.00
2.7300 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
5 Link-06
545.86
215.00
0.00
197.00
0.00
18.00
3.3000 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
6 Link-07
417.04
211.00
0.00
208.00
0.00
3.00
0.7200 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
7 Link-08
255.16
208.00
0.00
199.00
0.00
9.00
3.5300 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
8 Link-09
88.32
0.00
-197.00
0.00-194.00
0.00
0.0000 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
9 Link-12
143.43
0.00
-192.00
192.00
0.00-192.00
-133.8600 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
10 Link-25
49.86
0.00
0.00
211.00
0.00-211.00-423.1800 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
11 Link-26
78.27
192.00
0.00
191.50
0.00
0.50
0.6400 CIRCULAR
30.000
30.000
0.0150
0.5000
0.5000
0.0000
0.00 No

No. of
Barrels

Pipe Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time
Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity Time
Depth
Depth/
Surcharged
Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec) (min)
(ft)
(min)
1 Link-02
45.31
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
16.55
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
4.33
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
9.07
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
25.70
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
32.35
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
45.31
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
42.14
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
42.02
0 12:01
0.00
0.60
0.00
1.54
0.79
0.00
Calculated
10 Link-25
5.56
0 12:00
0.00
0.60
0.00
1.54
0.79
0.00
Calculated
11 Link-26
4.00
0 13:50
28.41
0.14
4.08 0.32
0.63
0.25
0.00
Calculated

Storage Nodes
Storage Node : Stor-01
Input Data
Invert Elevation (ft)...........................................................
192.00
Max (Rim) Elevation (ft)...................................................
198.00
Max (Rim) Offset (ft).........................................................
6.00
Initial Water Elevation (ft).................................................
193.00
Initial Water Depth (ft)......................................................
1.00
Ponded Area (ft')..............................................................
31740.00
Evaporation Loss.............................................................
0.00
Storage Area Volume Curves
Storage Curve : Storage-01
Stage Storage Storage
Area Volume
(ft) (ft') (ft')
0 31739.49 0.000
1 34022.12 32880.81
2 36531.29 68157.52
3 39096.56 105971.45
4 41717.92 146378.69
5 44395.38 189435.34
6 47481.18 235373.62

E
m
M
m
L
Storage Area Volume Curves
Storage Volume (ft3j
0 20,000 40.04) 00,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 220,000
6----------------------------------------------------------------------------------------- 6
'r.8-------------------------------- ---- 5.8
i.6----------------I----------I---------I---------------4-------------------------------------- •------- 5.6
5.4'--------J--------'--------`--------`------- '--------'--------`-------- ------ '--------J------•------- 5.4
5.2'--------=--------'--------=----- = ' = _------- 5.2
1.8----------------------------------------------- ------------------------------------------------ ------ 4.8
4.6'--------J--------'-------- `-------- `-------- --------'--------`------- ---- '--------J--------•------- 4.6
4.2---------------- 4.2
4 ------ 4
3.8'-------- ------------------`--------`-------- ------- ------ ------- `-------- -------- -------•------- 3.8
#.4
3.2 ----------------- ----- ------- ------ ----- ------- ------ ----- ------- 3.2
3----------------------------------- ----------------------------------------- ------ 3
?.8'-------- J--------'--------`-------- `------- ------ '-------- `-------- `------ '--------J--------•------ 2.8
t.4 - ------------- r------- '------- ------ 2.4
t.2 ; ; � - - - - --- - - - - -- ; ; _------ 2.2
2 ---- ----- ------ ---- ---- ----- ----- ---- ---- ----- ----- 2
1.8j -------------------------------------- ------ 1.8
1.6 r------- -------------------------------------------- ------ 1.6
1.4 ; r r ; : -- - - -- 1.4
1.2------------------------------------------------------------------------------------------------- ----- 1.2
1
#.8 _----'--------=--------'-------=- ' = = 0.8
#.6 ------ ------- ----- ------- ------ ----- ------- ------ 0.6
#.4 -----------I---------I---------------4--------- 4.4
0 0
32,000 33,000 34,000 35,000 363000 373000 38,000 39,000 40,000 41,000 42,000 43,000 44,000 45,000 46,000 47,000
Storage Area (ftxj
- Storage Area - Storage Volume
E
m
a�
m

Storage Node : Stor-01 (continued)
Outflow Weirs
SN Element Weir Flap
ID Type Gate
1 Weir-01 Trapezoidal No
Outflow Orifices
Crest Crest Length Weir Total Discharge
Elevation Offset Height Coefficient
197.00 5.00 15.00 1.00 3.33
SN Element Orifice
Orifice Flap
Circular Rectangular Rectangular
Orifice Orifice
ID Type
Shape Gate
Orifice Orifice Orifice
Invert Coefficient
Diameter Height Width
Elevation
(in) (in) (in)
(ft)
1 Riser-01 Bottom
Rectangular No
72.00 72.00
196.50 0.63
Output Summary Results
Peak Inflow (cfs)...............................................................
95.30
Peak Lateral Inflow (cfs)...................................................
9.95
Peak Outflow (cfs)............................................................
4.00
Peak Exfiltration Flow Rate (cfm).....................................
0.00
Max HGL Elevation Attained (ft).......................................
196.63
Max HGL Depth Attained (ft)............................................
4.63
Average HGL Elevation Attained (ft)................................
195.42
Average HGL Depth Attained (ft).....................................
3.42
Time of Max HGL Occurrence (days hh:mm) ...................
0 13:50
Total Exfiltration Volume (1000-ft3)..................................
0.000
Total Flooded Volume (ac-in)...........................................
0
Total Time Flooded (min) .................................................
0
Total Retention Time (sec) ...............................................
0.00

Project Description
File Name........................................................... post development 9-18-19 cf.SPF
Project Options
Flow Units..........................................................
CFS
Elevation Type ...................................................
Elevation
Hydrology Method ..............................................
SCS TR-55
Time of Concentration (TOC) Method ................
Kirpich
Link Routing Method ..........................................
Kinematic Wave
Enable Overflow Ponding at Nodes ...................
YES
Skip Steady State Analysis Time Periods ..........
NO
Analysis Options
Start Analysis On ...............................................
Jul 09, 2019
00:00:00
End Analysis On .................................................
Jul 11, 2019
00:00:00
Start Reporting On .............................................
Jul 09, 2019
00:00:00
Antecedent Dry Days .........................................
0
days
Runoff (Dry Weather) Time Step ........................
0 01:00:00
days hh:mm:ss
Runoff (Wet Weather) Time Step .......................
0 00:05:00
days hh:mm:ss
Reporting Time Step ..........................................
0 00:05:00
days hh:mm:ss
Routing Time Step .............................................
30
seconds
Number of Elements
Qty
RainGages ........................................................
1
Subbasins............................................................
17
Nodes..................................................................
16
Junctions ....................................................
13
Outfalls......................................................
2
Flow Diversions .........................................
0
Inlets..........................................................
0
Storage Nodes ...........................................
1
Links....................................................................
16
Channels...................................................
2
Pipes..........................................................
11
Pumps........................................................
0
Orifices.......................................................
1
Weirs.........................................................
1
Outlets.......................................................
1
Pollutants...........................................................
0
LandUses..........................................................
0
Rainfall Details
SN Rain Gage Data Data Source Rainfall Rain State County Return Rainfall Rainfall
ID Source ID Type Units Period Depth Distribution
1 Rain Gage-001 Time Series TS-100 Cumulative inches North Carolina Nash 100 8.30 SCS Type II 24-hr

Subbasin Summary
SN Subbasin Area Weighted Average Flow Total Total Total Peak Time of
ID Curve Slope Length Rainfall Runoff Runoff Runoff Concentration
Number Volume
(ac) M (ft) (in) (in) (ac-in) (cfs) (days hh:mm:ss)
1 Sub-02 1.56 77.00 25.0000 500.00 8.30 5.55 8.67 13.57 0 00:05:00
2 Sub-03 1.98 77.00 25.0000 500.00 8.30 5.55 10.99 17.18 0 00:05:00
3 Sub-04 2.38 77.00 25.0000 500.00 8.30 5.55 13.19 20.63 0 00:05:00
4 Sub-05 2.49 77.00 25.0000 500.00 8.30 5.55 13.80 21.57 0 00:05:00
5 Sub-06 0.71 77.00 25.0000 500.00 8.30 5.55 3.92 6.12 0 00:05:00
6 Sub-07 0.64 77.00 25.0000 500.00 8.30 5.55 3.55 5.56 0 00:05:00
7 Sub-08 2.32 77.00 25.0000 500.00 8.30 5.55 12.85 20.13 0 00:05:00
8 Sub-09 1.38 88.20 0.5000 500.00 8.30 6.89 9.51 13.31 0 00:07:10
9 Sub-10 0.30 77.00 5.0000 107.16 8.30 5.55 1.67 2.61 0 00:05:00
10 Sub-11 0.05 77.00 5.0000 148.05 8.30 5.53 0.27 0.39 0 00:05:00
11 Sub-12 0.04 77.00 5.0000 78.07 8.30 5.53 0.24 0.39 0 00:05:00
12 Sub-13 0.15 77.00 5.0000 68.43 8.30 5.55 0.81 1.28 0 00:05:00
13 Sub-14 0.22 77.00 5.0000 88.05 8.30 5.55 1.23 1.95 0 00:05:00
14 Sub-15 0.06 77.00 5.0000 123.83 8.30 5.54 0.31 0.50 0 00:05:00
15 Sub-16 0.07 77.00 5.0000 74.76 8.30 5.54 0.40 0.61 0 00:05:00
16 Sub-17 2.50 51.80 2.5000 557.07 8.30 2.63 6.58 10.07 0 00:05:00
17 Sub-18 0.52 49.00 0.5000 383.97 8.30 2.33 1.22 1.77 0 00:05:51

Node Summary
SN Element Element
Invert Ground/Rim
Initial Surcharge
Ponded
Peak Max HGL
Max
Min
Time of
Total Total Time
ID
Type
Elevation
(Max)
Water
Elevation
Area
Inflow
Elevation
Surcharge Freeboard
Peak Flooded
Flooded
Elevation Elevation
Attained
Depth
Attained
Flooding Volume
Attained
Occurrence
(ft)
(ft)
(ft)
(ft)
(ft')
(cfs)
(ft)
(ft)
(ft)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
Junction
223.00
227.00
0.00
0.00
0.00
5.94
223.00
0.00
4.00
0 00:00
0.00
0.00
2 Jun-02
Junction
220.00
224.00
0.00
0.00
0.00
12.44
220.00
0.00
4.00
0 00:00
0.00
0.00
3 Jun-03
Junction
215.00
219.00
0.00
0.00
0.00
35.26
215.00
0.00
4.00
0 00:00
0.00
0.00
4 Jun-04
Junction
197.00
201.00
0.00
0.00
0.00
57.81
197.00
0.00
4.00
0 00:00
0.00
0.00
5 Jun-06
Junction
211.00
215.00
0.00
0.00
0.00
46.63
211.00
0.00
4.00
0 00:00
0.00
0.00
6 Jun-07
Junction
223.00
227.00
0.00
0.00
0.00
22.71
223.00
0.00
4.00
0 00:00
0.00
0.00
7 Jun-08
Junction
208.00
212.00
0.00
0.00
0.00
64.40
208.00
0.00
4.00
0 00:00
0.00
0.00
8 Jun-09
Junction
199.00
203.00
0.00
0.00
0.00
64.40
199.00
0.00
4.00
0 00:00
0.00
0.00
9 Jun-10
Junction
194.00
196.00
0.00
0.00
0.00
59.47
195.89
0.00
0.11
0 00:00
0.00
0.00
10 Jun-11
Junction
193.00
196.00
0.00
0.00
0.00
58.60
194.87
0.00
1.13
0 00:00
0.00
0.00
11 Jun-12
Junction
192.00
199.00
0.00
0.00
0.00
58.16
193.84
0.00
5.16
0 00:00
0.00
0.00
12 Jun-13
Junction
0.00
6.00
0.00
6.00
0.00
9.88
0.00
0.00
6.00
0 00:00
0.00
0.00
13 Jun-14
Junction
192.00
196.00
192.00
0.00
0.00
25.42
193.85
0.00
2.15
0 00:00
0.00
0.00
14 Out-01
Outfall
191.50
25.41
193.35
15 Out-02
Outfall
191.50
0.00
191.50
16 Stor-01
Storage Node
192.00
198.00
193.00
31740.00
132.78
196.96
0.00
0.00

Link Summary
SN Element
Element From To (Outlet) Length
Inlet
Outlet
Average Diameter or
Manning's Peak Design Flow
Peak Flow/ Peak Flow Peak Flow
Peak Flow
Total Time Reported
ID
Type
(Inlet) Node
Invert
Invert
Slope
Height
Roughness Flow
Capacity
Design Flow
Velocity
Depth
Depth/
Surcharged Condition
Node
Elevation Elevation
Ratio
Total Depth
Ratio
(ft)
(ft)
(ft)
N
(in)
(cfs)
(cfs)
(fUsec)
(ft)
(min)
1 Link-02
Pipe
Jun-09 Stor-01
83.78
0.00
0.00
0.0000
0.000
0.0320 64.40
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
Pipe
Jun-07 Jun-06
524.19
223.00
211.00
2.2900
0.000
0.0300 22.71
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
Pipe
Jun-01 Jun-02
175.44
223.00
220.00
1.7100
0.000
0.0300 5.94
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
Pipe
Jun-02 Jun-03
182.89
220.00
215.00
2.7300
0.000
0.0300 12.44
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
Pipe
Jun-03 Jun-04
545.86
215.00
197.00
3.3000
0.000
0.0300 35.26
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
Pipe
Jun-06 Jun-08
417.04
211.00
208.00
0.7200
0.000
0.0300 46.63
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
Pipe
Jun-08 Jun-09
255.16
208.00
199.00
3.5300
0.000
0.0320 64.40
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
Pipe
Jun-04 Jun-10
88.32
0.00
0.00
0.0000
0.000
0.0150 57.81
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
Pipe
Jun-12 Stor-01
143.43
0.00
192.00
-133.8600
0.000
0.0150 58.16
0.00
0.83
0.00
1.80
0.92
0.00 Calculated
10 Link-25
Pipe
Jun-13 Jun-06
49.86
0.00
211.00
-423.1800
0.000
0.0150 9.88
0.00
0.83
0.00
1.80
0.92
0.00 Calculated
11 Link-26
Pipe
Jun-14 Out-01
78.27
192.00
191.50
0.6400
30.000
0.0150 25.41
28.41
0.89
6.54
1.84
0.74
0.00 Calculated
12 Link-10
Channel
Jun-10 Jun-11
183.06
194.00
193.00
0.5500
24.000
0.0320 58.60
67.82
0.86
3.65
1.86
0.94
0.00
13 Link-11
Channel
Jun-11 Jun-12
173.36
193.00
192.00
0.5800
24.000
0.0320 58.16
69.69
0.83
3.71
1.80
0.92
0.00
14 Riser-01
Orifice
Stor-01 Jun-14
192.00
192.00
72.000
25.04
15 Skimmer-01
Outlet
Stor-01 Jun-14
192.00
192.00
0.38
16 Weir-01
Weir
Stor-01 Out-02
192.00
191.50
0.00

Subbasin Hydrology
Subbasin : Sub-02
Input Data
Area(ac)......................................................
1.56
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.56 A 77.00
Composite Area & Weighted CN 1.56 77.00
Time of Concentration
TOC Method : Kirpich
Sheet Flow Equation
Tc = (0.0078 * ((Lf^0.77) * (Sf^-0.385)))
Where :
Tc = Time of Concentration (min)
Lf = Flow Length (ft)
Sf = Slope (ft/ft)
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 13.57
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-02
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
6
5.5
O✓
5
4.5
4
3.5
3
2.5
2
1.5
0.5
14.5
14
13.5
13
12.5
12
11.5
11
10.5
10
9.5
9
_ 8.5
N 8
C]
75
0 7
C
6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-03
Input Data
Area(ac)......................................................
1.98
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 1.98 A 77.00
Composite Area & Weighted CN 1.98 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 17.18
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-03
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
19
18
17
16
15
14
13
12
11
N
10
0 9
8
7
6
5
4
3
2
1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-04
Input Data
Area(ac)......................................................
2.38
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.38 A 77.00
Composite Area & Weighted CN 2.38 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 20.63
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-04
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
22
21
20
19
18
17
16
15
14
_ 13
N
� 12
v 11
0
10
O✓
9
8
7
6
5
4
3
2
1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-05
Input Data
Area(ac)......................................................
2.49
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.49 A 77.00
Composite Area & Weighted CN 2.49 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 21.57
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-05
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
23
22
21
20
19
18
17
16
15
14
N 13
--- 12
11
10
9
8
7
6
5
4
3
2
1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-06
Input Data
Area(ac)......................................................
0.71
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.71 A 77.00
Composite Area & Weighted CN 0.71 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 6.12
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-06
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
7
6.5
6
5.5
5
4.5
N 4
C]
w 3.5
0
0
FY 3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-07
Input Data
Area(ac)......................................................
0.64
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.64 A 77.00
Composite Area & Weighted CN 0.64 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 5.56
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-07
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
6.2
6
5.8
5.6
5.4
5.2
5
4.8
4.6
4.4
4.2
4
3.8
3.6
3.4
3.2
0 3
� 2.8
2.6
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-08
Input Data
Area(ac)......................................................
2.32
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
25.0000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 2.32 A 77.00
Composite Area & Weighted CN 2.32 77.00
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope(%).................................................... 25
Computed TOC (min) .................................. 1.59
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 20.13
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:35

Subbasin : Sub-08
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
22
21
20
19
18
17
16
15
14
_ 13
N
� 12
v 11
0
10
O✓
9
8
7
6
5
4
3
2
1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-09
Input Data
Area(ac)......................................................
1.38
Weighted Curve Number .............................
88.20
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
500.00
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
Open Water
1.11
A
98.00
50 - 75% grass cover, Fair
0.28
A
49.00
Composite Area & Weighted CN
1.39
88.20
Time of Concentration
Flow Length (ft)........................................... 500.00
Slope (%).................................................... 0.5
Computed TOC (min) .................................. 7.18
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 6.89
Peak Runoff (cfs)......................................... 13.31
Weighted Curve Number ............................. 88.20
Time of Concentration (days hh:mm:ss) ...... 0 00:07:11

Subbasin : Sub-09
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
13.5
13
12.5
12
11.5
11
10.5
10
9.5
9
8.5
_ 8
N 75
C]
7
0 6.5
6
5.5
5
4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-10
Input Data
Area(ac)......................................................
0.30
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
107.16
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.30 A 77.00
Composite Area & Weighted CN 0.30 77.00
Time of Concentration
Flow Length (ft)........................................... 107.16
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.90
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 2.61
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:54

Subbasin : Sub-10
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2
1.9
1.8
1.7
N 1.6
1.5
w 1.4
0
1.3
1h 1.2
1.1
1
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-11
Input Data
Area(ac)......................................................
0.05
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
148.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.05 A 77.00
Composite Area & Weighted CN 0.05 77.00
Time of Concentration
Flow Length (ft)........................................... 148.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.16
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.53
Peak Runoff (cfs)......................................... 0.39
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:10

Subbasin : Sub-11
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.42
0.4
0.38
0.36
0.34
0.32
0.3
0.28
0.26
N 0.24
v 0.22
0.2
0.18
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-12
Input Data
Area(ac)......................................................
0.04
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
78.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.04 A 77.00
Composite Area & Weighted CN 0.04 77.00
Time of Concentration
Flow Length (ft)........................................... 78.07
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.71
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.53
Peak Runoff (cfs)......................................... 0.39
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:43

Subbasin : Sub-12
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.42
0.4
0.38
0.36
0.34
0.32
0.3
0.28
0.26
N 0.24
v 0.22
0.2
0.18
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-13
Input Data
Area(ac)......................................................
0.15
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
68.43
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.15 A 77.00
Composite Area & Weighted CN 0.15 77.00
Time of Concentration
Flow Length (ft)........................................... 68.43
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.64
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 1.28
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:38

Subbasin : Sub-13
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
1.35
1.3
1.25
1.2
1.15
1.05
0.95
0.9
0.85
_ 0.8
N 0.75
0.7
0.65
0.6
0.55
0.5
0.45
0.4
0.35
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 8 8 10 12 14 18 18 20 22 24 28 28 30 32 34 38 38 40 42 44 46
Time [hrs]

Subbasin : Sub-14
Input Data
Area(ac)......................................................
0.22
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
88.05
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.22 A 77.00
Composite Area & Weighted CN 0.22 77.00
Time of Concentration
Flow Length (ft)........................................... 88.05
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.78
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.55
Peak Runoff (cfs)......................................... 1.95
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:47

Subbasin : Sub-14
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
2.1
2
1.9
1.8
1.7
1.6
1.5
1.4
1.3
N 1.2
v 1.1
0 1
1h 0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-15
Input Data
Area(ac)......................................................
0.06
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
123.83
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.06 A 77.00
Composite Area & Weighted CN 0.06 77.00
Time of Concentration
Flow Length (ft)........................................... 123.83
Slope(%).................................................... 5
Computed TOC (min) .................................. 1.01
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.54
Peak Runoff (cfs)......................................... 0.50
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:01:01

Subbasin : Sub-15
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.52
0.5
0.48
0.46
0.44
0.42
0.4
0.38
0.36
0.34
0.32
0.3
N
0.28
w 0.26
0
c 0.24
Cl� 0.22
0.2
0.18
0.16
0.14
0.12
0.1
0.08
0.06
0.04
0.02
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-16
Input Data
Area(ac)......................................................
0.07
Weighted Curve Number .............................
77.00
Average Slope (%)......................................
5.0000
Flow Length (ft)...........................................
74.76
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
Newly graded area 0.07 A 77.00
Composite Area & Weighted CN 0.07 77.00
Time of Concentration
Flow Length (ft)........................................... 74.76
Slope(%).................................................... 5
Computed TOC (min) .................................. 0.68
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 5.54
Peak Runoff (cfs)......................................... 0.61
Weighted Curve Number ............................. 77.00
Time of Concentration (days hh:mm:ss) ...... 0 00:00:41

Subbasin : Sub-16
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
0.7
0.65
0.6
0.55
0.5
0.45
N 0.4
w 0.35
0
0.3
0.25
0.2
0.15
0.1
0.05
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-17
Input Data
Area(ac)......................................................
2.50
Weighted Curve Number .............................
51.80
Average Slope (%)......................................
2.5000
Flow Length (ft)...........................................
557.07
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area
Soil
Curve
Soil/Surface Description
(acres)
Group
Number
50 - 75% grass cover, Fair
2.25
A
49.00
Fallow, bare soil
0.25
A
77.00
Composite Area & Weighted CN
2.50
51.80
Time of Concentration
Flow Length (ft)........................................... 557.07
Slope (%).................................................... 2.5
Computed TOC (min) .................................. 4.20
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 2.63
Peak Runoff (cfs)......................................... 10.07
Weighted Curve Number ............................. 51.80
Time of Concentration (days hh:mm:ss) ...... 0 00:04:12

Subbasin : Sub-17
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
10.5
10
9.5
9
8.5
8
7.5
7
6.5
N 6
v 5.5
0 5
1h 4.5
4
3.5
3
2.5
2
1.5
0.5
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Subbasin : Sub-18
Input Data
Area(ac)......................................................
0.52
Weighted Curve Number .............................
49.00
Average Slope (%)......................................
0.5000
Flow Length (ft)...........................................
383.97
Rain Gage ID ...............................................
Rain Gage-001
Composite Curve Number
Area Soil Curve
Soil/Surface Description (acres) Group Number
50 - 75% grass cover, Fair 0.52 A 49.00
Composite Area & Weighted CN 0.52 49.00
Time of Concentration
Flow Length (ft)........................................... 383.97
Slope(%).................................................... 0.5
Computed TOC (min) .................................. 5.86
Subbasin Runoff Results
Total Rainfall (in) ......................................... 8.30
Total Runoff (in) ........................................... 2.33
Peak Runoff (cfs)......................................... 1.77
Weighted Curve Number ............................. 49.00
Time of Concentration (days hh:mm:ss) ...... 0 00:05:52

Subbasin : Sub-18
12
11.5
11
10.5
10
9.5
9
8.5
8
7.5
7
6.5
v 6
5.5
1h 5
4.5
4
3.5
3
2.5
2
1.5
0.5
1.8
1.7
1.6
1.5
1.4
1.3
1.2
1.1
N 1
w 0.9
0
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
Rainfall Intensity Graph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
Time [hrs]
Runoff Hydrograph
0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46
Time [hrs]

Junction Input
SN Element
Invert Ground/Rim Ground/Rim
Initial Initial Surcharge Surcharge Ponded Minimum
ID
Elevation
(Max)
(Max)
Water Water
Elevation
Depth
Area
Pipe
Elevation
Offset Elevation Depth
Cover
(ft)
(ft)
(ft)
(ft) (ft)
(ft)
(ft)
(ft')
(in)
1 Jun-01
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
2 Jun-02
220.00
224.00
4.00
0.00-220.00
0.00
-224.00
0.00
0.00
3 Jun-03
215.00
219.00
4.00
0.00-215.00
0.00
-219.00
0.00
0.00
4 Jun-04
197.00
201.00
4.00
0.00-197.00
0.00
-201.00
0.00
0.00
5 Jun-06
211.00
215.00
4.00
0.00-211.00
0.00
-215.00
0.00
0.00
6 Jun-07
223.00
227.00
4.00
0.00-223.00
0.00
-227.00
0.00
0.00
7 Jun-08
208.00
212.00
4.00
0.00-208.00
0.00
-212.00
0.00
0.00
8 Jun-09
199.00
203.00
4.00
0.00-199.00
0.00
-203.00
0.00
0.00
9 Jun-10
194.00
196.00
2.00
0.00-194.00
0.00
-196.00
0.00
0.00
10 Jun-11
193.00
196.00
3.00
0.00-193.00
0.00
-196.00
0.00
0.00
11 Jun-12
192.00
199.00
7.00
0.00-192.00
0.00
-199.00
0.00
0.00
12 Jun-13
0.00
6.00
6.00
0.00 0.00
6.00
0.00
0.00
0.00
13 Jun-14
192.00
196.00
4.00
192.00 0.00
0.00
-196.00
0.00
0.00

Junction Results
SN Element
Peak
Peak Max HGL Max HGL
Max
Min Average HGL Average HGL
Time of
Time of
Total Total Time
ID
Inflow
Lateral
Elevation
Depth Surcharge Freeboard
Elevation
Depth
Max HGL
Peak Flooded
Flooded
Inflow
Attained
Attained
Depth
Attained
Attained
Attained
Occurrence
Flooding Volume
Attained
Occurrence
(cfs)
(cfs)
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
(days hh:mm)
(days hh:mm)
(ac-in)
(min)
1 Jun-01
5.94
5.94
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
2 Jun-02
12.44
6.50
220.00
0.00
0.00
4.00
220.00
0.00
0 00:00
0 00:00
0.00
0.00
3 Jun-03
35.26
22.82
215.00
0.00
0.00
4.00
215.00
0.00
0 00:00
0 00:00
0.00
0.00
4 Jun-04
57.81
22.55
197.00
0.00
0.00
4.00
197.00
0.00
0 00:00
0 00:00
0.00
0.00
5 Jun-06
46.63
14.04
211.00
0.00
0.00
4.00
211.00
0.00
0 00:00
0 00:00
0.00
0.00
6 Jun-07
22.71
22.71
223.00
0.00
0.00
4.00
223.00
0.00
0 00:00
0 00:00
0.00
0.00
7 Jun-08
64.40
17.77
208.00
0.00
0.00
4.00
208.00
0.00
0 00:00
0 00:00
0.00
0.00
8 Jun-09
64.40
0.00
199.00
0.00
0.00
4.00
199.00
0.00
0 00:00
0 00:00
0.00
0.00
9 Jun-10
59.47
1.70
195.89
1.89
0.00
0.11
194.10
0.10
0 12:00
0 00:00
0.00
0.00
10 Jun-11
58.60
0.00
194.87
1.87
0.00
1.13
193.10
0.10
0 12:00
0 00:00
0.00
0.00
11 Jun-12
58.16
0.00
193.84
1.84
0.00
5.16
192.10
0.10
0 12:01
0 00:00
0.00
0.00
12 Jun-13
9.88
9.88
0.00
0.00
0.00
6.00
0.00
0.00
0 00:00
0 00:00
0.00
0.00
13 Jun-14
25.42
0.00
193.85
1.85
0.00
2.15
192.30
0.30
0 12:16
0 00:00
0.00
0.00

Channel Input
SN Element Length Inlet Inlet Outlet Outlet Total Average Shape Height Width Manning's Entrance Exit/Bend Additional Initial Flap
ID Invert Invert Invert Invert Drop Slope Roughness Losses Losses Losses Flow Gate
Elevation Offset Elevation Offset
(ft) (ft) (ft) (ft) (ft) (ft) N (ft) (ft) (cfs)
1 Link-10 183.06 194.00 0.00 193.00 0.00 1.00 0.5500 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No
2 Link-11 173.36 193.00 0.00 192.00 0.00 1.00 0.5800 Trapezoidal 2.000 15.000 0.0320 0.5000 0.5000 0.0000 0.00 No

Channel Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity
Time
Depth
Depth/
Surcharged Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec)
(min)
(ft)
(min)
1 Link-10
58.60
0 12:00
67.82
0.86
3.65
0.84
1.86
0.94
0.00
2 Link-11
58.16
0 12:01
69.69
0.83
3.71
0.78
1.80
0.92
0.00

Pipe Input
SN Element
Length
Inlet
Inlet
Outlet
Outlet
Total
Average Pipe
Pipe
Pipe
Manning's Entrance Exit/Bend Additional Initial Flap
ID
Invert
Invert
Invert
Invert
Drop
Slope Shape
Diameter or
Width
Roughness
Losses
Losses
Losses
Flow Gate
Elevation
Offset Elevation
Offset
Height
(ft)
(ft)
(ft)
(ft)
(ft)
(ft)
N
(in)
(in)
(cfs)
1 Link-02
83.78
0.00-199.00
0.00-192.00
0.00
0.0000 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
2 Link-03
524.19
223.00
0.00
211.00
0.00
12.00
2.2900 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
3 Link-04
175.44
223.00
0.00
220.00
0.00
3.00
1.7100 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
4 Link-05
182.89
220.00
0.00
215.00
0.00
5.00
2.7300 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
5 Link-06
545.86
215.00
0.00
197.00
0.00
18.00
3.3000 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
6 Link-07
417.04
211.00
0.00
208.00
0.00
3.00
0.7200 Dummy
0.000
0.000
0.0300
0.5000
0.5000
0.0000
0.00 No
7 Link-08
255.16
208.00
0.00
199.00
0.00
9.00
3.5300 Dummy
0.000
0.000
0.0320
0.5000
0.5000
0.0000
0.00 No
8 Link-09
88.32
0.00
-197.00
0.00-194.00
0.00
0.0000 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
9 Link-12
143.43
0.00
-192.00
192.00
0.00-192.00
-133.8600 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
10 Link-25
49.86
0.00
0.00
211.00
0.00-211.00-423.1800 Dummy
0.000
0.000
0.0150
0.5000
0.5000
0.0000
0.00 No
11 Link-26
78.27
192.00
0.00
191.50
0.00
0.50
0.6400 CIRCULAR
30.000
30.000
0.0150
0.5000
0.5000
0.0000
0.00 No

No. of
Barrels

Pipe Results
SN Element
Peak
Time of Design Flow
Peak Flow/ Peak Flow Travel Peak Flow
Peak Flow
Total Time
Froude Reported
ID
Flow
Peak Flow
Capacity
Design Flow
Velocity Time
Depth
Depth/
Surcharged
Number Condition
Occurrence
Ratio
Total Depth
Ratio
(cfs)
(days hh:mm)
(cfs)
(ft/sec) (min)
(ft)
(min)
1 Link-02
64.40
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
2 Link-03
22.71
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
3 Link-04
5.94
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
4 Link-05
12.44
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
5 Link-06
35.26
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
6 Link-07
46.63
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
7 Link-08
64.40
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
8 Link-09
57.81
0 12:00
0.00
0.00
0.00
0.00
0.00
0.00
9 Link-12
58.16
0 12:01
0.00
0.83
0.00
1.80
0.92
0.00
Calculated
10 Link-25
9.88
0 12:00
0.00
0.83
0.00
1.80
0.92
0.00
Calculated
11 Link-26
25.41
0 12:16
28.41
0.89
6.54 0.20
1.84
0.74
0.00
Calculated

Storage Nodes
Storage Node : Stor-01
Input Data
Invert Elevation (ft)...........................................................
192.00
Max (Rim) Elevation (ft)...................................................
198.00
Max (Rim) Offset (ft).........................................................
6.00
Initial Water Elevation (ft).................................................
193.00
Initial Water Depth (ft)......................................................
1.00
Ponded Area (ft')..............................................................
31740.00
Evaporation Loss.............................................................
0.00
Storage Area Volume Curves
Storage Curve : Storage-01
Stage Storage Storage
Area Volume
(ft) (ft') (ft')
0 31739.49 0.000
1 34022.12 32880.81
2 36531.29 68157.52
3 39096.56 105971.45
4 41717.92 146378.69
5 44395.38 189435.34
6 47481.18 235373.62

E
m
M
m
L
Storage Area Volume Curves
Storage Volume (ft3j
0 20,000 40.04) 00,000 80,000 100,000 120,000 140,000 160,000 180,000 200,000 220,000
6----------------------------------------------------------------------------------------- 6
'r.8-------------------------------- ---- 5.8
i.6----------------I----------I---------I---------------4-------------------------------------- •------- 5.6
5.4'--------J--------'--------`--------`------- '--------'--------`-------- ------ '--------J------•------- 5.4
5.2'--------=--------'--------=----- = ' = _------- 5.2
1.8----------------------------------------------- ------------------------------------------------ ------ 4.8
4.6'--------J--------'-------- `-------- `-------- --------'--------`------- ---- '--------J--------•------- 4.6
4.2---------------- 4.2
4 ------ 4
3.8'-------- ------------------`--------`-------- ------- ------ ------- `-------- -------- -------•------- 3.8
#.4
3.2 ----------------- ----- ------- ------ ----- ------- ------ ----- ------- 3.2
3----------------------------------- ----------------------------------------- ------ 3
?.8'-------- J--------'--------`-------- `------- ------ '-------- `-------- `------ '--------J--------•------ 2.8
t.4 - ------------- r------- '------- ------ 2.4
t.2 ; ; � - - - - --- - - - - -- ; ; _------ 2.2
2 ---- ----- ------ ---- ---- ----- ----- ---- ---- ----- ----- 2
1.8j -------------------------------------- ------ 1.8
1.6 r------- -------------------------------------------- ------ 1.6
1.4 ; r r ; : -- - - -- 1.4
1.2------------------------------------------------------------------------------------------------- ----- 1.2
1
#.8 _----'--------=--------'-------=- ' = = 0.8
#.6 ------ ------- ----- ------- ------ ----- ------- ------ 0.6
#.4 -----------I---------I---------------4--------- 4.4
0 0
32,000 33,000 34,000 35,000 363000 373000 38,000 39,000 40,000 41,000 42,000 43,000 44,000 45,000 46,000 47,000
Storage Area (ftxj
- Storage Area - Storage Volume
E
m
a�
m

Storage Node : Stor-01 (continued)
Outflow Weirs
SN Element Weir Flap
ID Type Gate
1 Weir-01 Trapezoidal No
Outflow Orifices
Crest Crest Length Weir Total Discharge
Elevation Offset Height Coefficient
197.00 5.00 15.00 1.00 3.33
SN Element Orifice
Orifice Flap
Circular Rectangular Rectangular
Orifice Orifice
ID Type
Shape Gate
Orifice Orifice Orifice
Invert Coefficient
Diameter Height Width
Elevation
(in) (in) (in)
(ft)
1 Riser-01 Bottom
Rectangular No
72.00 72.00
196.50 0.63
Output Summary Results
Peak Inflow (cfs)...............................................................
132.78
Peak Lateral Inflow (cfs)...................................................
12.87
Peak Outflow (cfs)............................................................
25.42
Peak Exfiltration Flow Rate (cfm).....................................
0.00
Max HGL Elevation Attained (ft).......................................
196.96
Max HGL Depth Attained (ft)............................................
4.96
Average HGL Elevation Attained (ft)................................
195.46
Average HGL Depth Attained (ft).....................................
3.46
Time of Max HGL Occurrence (days hh:mm) ...................
0 12:16
Total Exfiltration Volume (1000-ft3)..................................
0.000
Total Flooded Volume (ac-in)...........................................
0
Total Time Flooded (min) .................................................
0
Total Retention Time (sec) ...............................................
0.00

G P. X'ff ZAP) PROJECT Nash County LCID Permit to Construct
MOORS, SUBJECT Grass Lined Channel Design
COMPUTED BY IH CHECKED BY CIF
1258 Benson Road, Garner, NC 27529 DATE 9/23/2019
Channel Section Designation: Stormwater Ditch
Channel Section Descritption: Max slope 0.6%; T ditch bottom, 3:1 sideslopes; design Q from StormNet
A. Discharge,Q, using Manning Equation with assigned maximum depth of flow, y.
Input Data
max depth of flow (ft), y:
1.82390085
longitudinal slope (ft/ft), S:
0.0055
bottom width (ft), b:
3
channel side slope (m:1):
3
design Q (cfs):
42.23
TEMPORARY LINING: Bare channel with North American Green Blanket, C125/C150BN.
roughness coefficient, n : 0.025
max. shear stress (psf), Td: 2.25
Temporary lining flow capacity, Q (cfs) _ 000W.J5
PERMANENT LINING: Tall Fescue
max. velocity of lining (ft/s): 5
retardance class for lining: D
VR (max velocity x R): 5.3
Manning's n : 0.042
(from table 8.05c)
(including one retardance class increase)
(rough channel with grass)
Permanent lining flow capacity, Q (cfs) _ W42.23 CONTROLS
Channel design controlled by permanent lining flow capacity.
A, area P, wetted R, hydraulic S, slope Q, flow V, velocity
(sf) perimeter (ft) radius (ft) (ft/ft) (cfs) (ft/s)
15.45154552 14.54 1.06 0.0055 42.23 2.73
B. Normal Depth and Shear Stress using Normal -Depth Procedure (known Q)
Discharge (cfs), Q: 42.23 (design max. Q of controlling lining system, from above)
longitudinal slope (ft/ft), S: 0.0055
bottom width (ft), b: 3
channel side slope (m:1): 3
Input
TEMPORARY LINING: Bare channel with North American Green Blanket, C125/C15013N.
roughness coefficient, n : 0.025
max. shear stress (psf), Td: 2.25 Iterate y to make Zav = Zreg
Temp. Lined y-var. (ft) A (ft) P (ft)
PERMANENT LINING: Tall Fescue
max. velocity of lining (ft/s): 5
retardance class for lining: D (table 8.05a)
VR (max velocity x R): 5.3 (including one retardance class increase)
Manning's n : 0.042 (rough channel with grass)
Flow capacity controlling lining: permanent
Zreq V (ft/s) Td (psf)
Perm. Lined y-var. (ft) A (ft) P (ft) R (ft) Zav Zreq V (ft/s) Td (psf)
Channel: 1.821719321 15.4211418 14.52 1.06 16.05 16.05 2.74 0.63
Referenced Tables and Figures from North Carolina Erosion and Sediment Control Planning and Design Manual (1988). V OK

Appendices
13'
3D- ----7
4
3
0.5'
3 5 10 20 50 100 200 500 1000
Discharge (ft3/sec)
Q25 = 4 cfs
Curves may not be extrapolated.
Figure 8.06a Design of outlet protection protection from a round pipe flowing full, minimum tailwater condition (TW < 0.5 diameter).
For Sediment Pond with the energy
dissapator, the 30" outlet pipe with a Q25
discharge of 4 cfs from the phase 1 &2
area, the Riprap Apron should have a
minimum d50 of .5 feet, a minimum
length of 13 feet, and minimum width of
Rev. 12/93 15.5 feet. 8.06.3

GARRETT ►
& M 0 0 R E :02AJ
Engineering for the Power and Waste industries
PROJECT Nash County LCID Permitting
SUBJECT Skimmer Sizing, Dewatering Time, and Pond Summary
COMPUTED BY IMH CHECKED BY G&M
DATE 8/29/2019
Size skimmer to dewater the pond in 3-5 days after the 10-year, 24-hour storm
V = 162,740 CF Volume below riser
Skimmer Size 5 in. Desired skimmer size
Qd = 32,832 cf/day From table -->
0.38 cfs
td = 5.0 DAYS
First Flush Dewatering Time, between 24 and 72 hrs
Wet Pond
0.5 in.
Drainage Area
18.5 ac
Volume
33,577.50 cf
Dewater Rate
0.38 cfs
Dewater Time
88,361.84 sec
24.54 hr
Surface Area Requirements
Faircloth Skimmer
Dewatering Rates
Skimmer Size
(in.)
Dewatering Rate
(cubic ft/day)
1.5
1,728
2
3,283
2.5
6,234
3
9,774
4
20,109
5
32,832
6
51,840
8
97,978
Per Wake County development standards, surface area requirements for all sediment basins include:
435 x Q10;,, = Surface Area required
Q10in = 75.86 cfs, from attached routing summary, p. 14
Design Surface Area = 47,481 sf
Min. Surface Area = 32,999 sf
OK
Volume Requirements
Minimum sediment basin volume is determined by 1,800 cf per drainage acre
Drainage Area = 18.5 acres
Design V = 235,374 cf
Vmin = 33,300 cf
OK

GARRETT /
& MOOREE
Engineering for the Power and Waste Industries
Bouyant Force Evaluation
PROJECT Nash Landfill LCID Permitting
SUBJECT Floatation Evaluation Sediment Pond 01
COMPUTED BY I. Hardison CHECKED BY G&M
DATE 9/23/2019
Riser Box Width/Length, ft
7
Riser Box Height, ft
4.5
Submergea Kiser Volume, cf
221
Riser Uplift Force, lb
13759
Resisting Force Evaluation
Base Width (assume square), ft
12
Base Thickness, ft
2
Embedment Depth, ft
1
Fill Height, ft
2
Dry Unit Weight of Backfill, pcf
110
Saturated Unit Weight of Backfill, pcf
47.b
Pressure of Saturated Fill, psf
95.2
Base Area, sf
144
Riser Area, sf
21.99
Backfill Resisting Force
11615
Concrete Base Resisting Force
25229
Total Resisting Force
36844
Factor of Safety 12.68
TOP OF BACKFIL
EMBEDMENT
RISER