20210678 Ver 1_19-018 Rev02 2021-04-12 Details Only Revised_20210416

PIN# 9840-33-9815 & 9840-43-9598
GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCGO1 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCGO1 Construction General Permit (Sections E and F, respectively). The
permittee shall comply with the Erosion and Sediment Control plan approved by the
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization Timeframes
Stabilize within this
Site Area Description
many calendar
days after ceasing
Timeframe variations
land disturbance
(a) Perimeter dikes,
swales, ditches, and
perimeter slopes
7
None
(b) High Quality Water
7
None
(HQW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
(d) Slopes 3:1 to 4:1
14
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW
Zones
-10 days for Falls Lake Watershed
(e) Areas with slopes
-7 days for perimeter dikes, swales,
ditches, perimeter slopes and HQW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
techniques in the table below:
Temporary Stabilization
• Temporary grass seed covered with straw or
other mulches and tackifiers
• Hydroseeding
• Rolled erosion control products with or
without temporary grass seed
• Appropriately applied straw or other mulch
• Plastic Sheeting
Permanent Stabilization
• Permanent grass seed covered with straw or
other mulches and tackifiers
• Geotextile fabrics such as permanent soil
reinforcement matting
• Hydroseeding
• Shrubs or other permanent plantings covered
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures.
3. Apply flocculants at the concentrations specified in the NC DWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormwater before discharging
offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identify leaks and repair as soon as feasible, or remove leaking equipment from the
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
w �Tt
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` 1, ::. Environmental Quality
SANDBAGS (TYP.)
OR STAPLES
SILT FENCE
CONCRETE
WASHOUT
"-A
CLEARLY MARKED SIGNAGE
NOTING DEVICE (18"X24" MIN.)
ELAN
1:1
SIDE SLOP
(TYP.
ONSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
HIGH
COHESIVE &
LOW FILTRATION
SOIL BERM
10 MIL
PLASTIC
LINING
0
SANDBAGS (TYP.)
OR STAPLES
SECTION A -A
NOTES:
1. ACTUAL LOCATION DETERMINED IN FIELD
2. THE CONCRETE WASHOUT STRUCTURES SHALL
BE MAINTAINED WHEN THE LIQUID AND/OR SOUD
REACHES 75% OF THE STRUCTURES CAPACITY.
3.CONCRETE WASHOUT STRUCTURE NEEDS TO BE
CLEARY MARKED WITH SIGNAGE NOTING DEVICE.
BELOW GRADE WASHOUT STRUCTURE
NOT TO SCALE
CONCRETE
WASHOUT
SANDBAGS (TYP.)
OR STAPLES
CLEARLY MARKED SIGNAGE
NOTING DEVICE (18"X24" MIN.)
PLAN
10 MIL
PLASTIC LINING
1:1 SIDE SLOP
TYP.)
SANDBAGS (TYP.)
OR STAPLES
HIGH
COHESIVE &
LOW FILTRATION
SOIL BERM
SECTION B-B
NOTES:
1. ACTUAL LOCATION DETERMINED IN
FIELD
2. THE CONCRETE WASHOUT
STRUCTURES SHALL BE MAINTAINED
WHEN THE LIQUID AND/OR SOUD
REACHES 75% OF THE STRUCTURES
CAPACITY TO PROVIDE ADEQUATE
HOLDING CAPACITY WITH A MINIMUM 12
INCHES OF FREEBOARD.
3.CONCRETE WASHOUT STRUCTURE
NEEDS TO BE CLEARY MARKED WITH
SIGNAGE NOTING DEVICE.
ABOVE GRADE WASHOUT STRUCTURE
NOT TO SCALE
CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at least 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at least one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
HAZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground.
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DESCRIPTION
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DATE:
DECEMBER 10, 2020
HORIZONTAL SCALE: N/A
VERTICAL SCALE: N/A
PROJECT MANAGER: CPK
DRAWN BY: SCS
PROJECT NO: 19-018
DRAWING NAME: 19-018 DETAILS
THIS DRAWING AND THE DESIGN HEREON ARE
THE PROPERTY OF EarthCentric Engineering, Inc.
THE INFORMATION ON THIS DRAWING IS NOT FOR
USE ON ANY OTHER SITE OR PROJECT. THE
REPRODUCTION OR OTHER USE OF THIS
DRAWING IN WHOLE OR IN PART, WITHOUT
WRITTEN CONSENT OF EarthCentric Engineering, Inc.,
IS PROHIBITED.
COPYRIGHT 2021 EarthCentric Engineering, Inc.
NCGO1 GROUND STABILIZATION AND MATERIALS HANDLING
EFFECTIVE: 04/01/19
SHEET NO.
REVISED: 05/17/19
PRELIMINARY
P:\19-018\19-018 Drawings\ Working\19-018 Details.dwg, D1.0 NCGO1 Details, 4/14/2021 10:20:15 AM

PIN# 9840-33-9815 & 9840-43-9598
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
Self -inspections are required during normal business hours in accordance with the table
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Inspect
Frequency
(during normal
business hours)
Inspection records must include:
(1) Rain gauge
maintained in
good working
order
Daily
Daily rainfall amounts.
If no daily rain gauge observations are made during weekend or
holiday periods, and no individual -day rainfall information is
available, record the cumulative rain measurement for those un-
attended days (and this will determine if a site inspection is
needed). Days on which no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
Measures
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
1. Identification of the measures inspected,
2. Date and time of the inspection,
3. Name of the person performing the inspection,
4. Indication of whether the measures were operating
properly,
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
discharge
outfalls (SDOs)
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
1. Identification of the discharge outfalls inspected,
2. Date and time of the inspection,
3. Name of the person performing the inspection,
4. Evidence of indicators of stormwater pollution such as oil
sheen, floating or suspended solids or discoloration,
5. Indication of visible sediment leaving the site,
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
site
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
If visible sedimentation is found outside site limits, then a record
of the following shall be made:
1. Actions taken to clean up or stabilize the sediment that has left
the site limits,
2. Description, evidence, and date of corrective actions taken, and
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
wetlands onsite
or offsite
(where
accessible)
At least once per
7 calendar days
and within 24
hours of a rain
event > 1.0 inch in
24 hours
If the stream or wetland has increased visible sedimentation or a
stream has visible increased turbidity from the construction
activity, then a record of the following shall be made:
1. Description, evidence and date of corrective actions taken, and
2. Records of the required reports to the appropriate Division
Regional Office per Part III, Section C, Item (2)(a) of this permit
of this permit.
(6) Ground
stabilization
measures
After each phase
of grading
1. The phase of grading (installation of perimeter E&SC
measures, clearing and grubbing, installation of storm
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC plan as well as any approved deviation shall be kept on the site. The
approved E&SC plan must be kept up-to-date throughout the coverage under this permit. The
following items pertaining to the E&SC plan shall be kept on site and available for inspection
at all times during normal business hours.
Item to Document
Documentation Requirements
(a) Each E&SC Measure has been installed
and does not significantly deviate from the
locations, dimensions and relative elevations
shown on the approved E&SC Plan.
Initial and date each E&SC Measure on a copy
of the approved E&SC Plan or complete, date
and sign an inspection report that lists each
E&SC Measure shown on the approved E&SC
Plan. This documentation is required upon the
initial installation of the E&SC Measures or if
the E&SC Measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
in accordance with the approved E&SC
Plan.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
requirements for all E&SC Measures
have been performed.
Complete, date and sign an inspection report.
(e) Corrective actions have been taken
to E&SC Measures.
Initial and date a copy of the approved E&SC
Plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation
In addition to the E&SC Plan documents above, the following items shall be kept on the site
and available for inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make this
requirement not practical:
(a) This general permit as well as the certificate of coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall
record the required observations on the Inspection Record Form provided by the Division
or a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
3. Documentation to be Retained for Three Years
All data used to complete the e-NOI and all inspection records shall be maintained for a period
of three years after project completion and made available upon request. [40 CFR 122.41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met:
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal
shall not commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above,
(e) Velocity dissipation devices such as check dams, sediment traps, and riprap are provided at the discharge points of all dewatering devices, and
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1.
2.
Occurrences that must be reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
• They are 25 gallons or more,
• They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
• They are within 100 feet of surface waters (regardless of volume).
(a) Releases of hazardous substances in excess of reportable quantities under Section 311 of
the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA (Ref:
40 CFR 302.4) or G.S. 143-215.85.
(b) Anticipated bypasses and unanticipated bypasses.
(c) Noncompliance with the conditions of this permit that may endanger health or the
environment.
Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Departments's Environmental Emergency Center personnel at (800)
858-0368.
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
deposition in a
stream or wetland
• Within 24 hours, an oral or electronic notification.
• Within 7 calendar days, a report that contains a description of the
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
• If the stream is named on the NC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
release of
hazardous
substances per Item
1(b)-(c) above
• Within 24 hours, an oral or electronic notification. The notification
shall include information about the date, time, nature, volume and
location of the spill or release.
(c) Anticipated
bypasses [40 CFR
122.41(m)(3)]
• A report at least ten days before the date of the bypass, if possible.
The report shall include an evaluation of the anticipated quality and
effect of the bypass.
(d) Unanticipated
bypasses [40 CFR
122.41(m)(3)]
• Within 24 hours, an oral or electronic notification.
• Within 7 calendar days, a report that includes an evaluation of the
quality and effect of the bypass.
(e) Noncompliance
with the conditions
of this permit that
may endanger
health or the
environment[40
CFR 122.41(1)(7)]
• Within 24 hours, an oral or electronic notification.
• Within 7 calendar days, a report that contains a description of the
noncompliance, and its causes; the period of noncompliance,
including exact dates and times, and if the noncompliance has not
been corrected, the anticipated time noncompliance is expected to
continue; and steps taken or planned to reduce, eliminate, and
prevent reoccurrence of the noncompliance. [40 CFR 122.41(1)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
NOR FH CAROLINA
Environmental Quality
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Licence #C-2638
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DATE:
DECEMBER 10, 2020
HORIZONTAL SCALE: N/A
VERTICAL SCALE: N/A
PROJECT MANAGER: CPK
DRAWN BY: SCS
PROJECT NO: 19-018
DRAWING NAME: 19-018 DETAILS
THIS DRAWING AND THE DESIGN HEREON ARE
THE PROPERTY OF EarthCentric Engineering, Inc.
THE INFORMATION ON THIS DRAWING IS NOT FOR
USE ON ANY OTHER SITE OR PROJECT. THE
REPRODUCTION OR OTHER USE OF THIS
DRAWING IN WHOLE OR IN PART, WITHOUT
WRITTEN CONSENT OF EarthCentric Engineering, Inc.,
IS PROHIBITED.
COPYRIGHT 2021 EarthCentric Engineering, Inc.
NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING
EFFECTIVE: 04/01/19
SHEET NO.
i@i
REVISED: 05/17/19
PRELIMINARY
P:\19-018\19-018 Drawings\_Working\19-018 Details.dwg, D1.1 NCGO1 Details, 4/14/2021 10:20:15 AM

PIN# 9840-33-9815 & 9840-43-9598
COIR FIBER WATTLE
MATTING
2' (MAX . )
MATTING
2 IN.
MATTING
COIR FIBER WATTLE DETAIL
See Inset A
O••• 0Q�
5
BACK
SLOPE
ISOMETRIC VIEW
2' UPSLOPE
STAKE
CROSS SECTION
VEE DITCH
4x .
EDGE OF PAVEMENT
NATURAL GROUND
2' DOWNSLOPE
STAKE
2' UPSLOPE
STAKE
CROSS SECTION
TRAPEZOIDAL DITCH
NATURAL GROUND
2' DOWNSLOPE
STAKE
FLOW
PROJECT REFERENCE NO.
X-XXXX
SHEET NO.
EC-2G
P,W SHEET NO.
ROADWAY DESIGN
ENGINEER
HYDRAULICS
ENGINEER
NOTES:
USE MINIMUM 12 IN. DIAMETER COIR FIBER (COCONUT FIBER) WATTLE.
USE 2 FT. WOODEN STAKES WITH A 2 IN. BY 2 IN. NOMINAL
CROSS SECTION.
ONLY INSTALL WATTLE(S) TO A HEIGHT IN DITCH SO FLOW WILL NOT
WASH AROUND WATTLE AND SCOUR DITCH SLOPES AND AS DIRECTED.
INSTALL A MINIMUM OF 2 UPSLOPE STAKES AND 4 DOWNSLOPE
STAKES AT AN ANGLE TO WEDGE WATTLE TO BOTTOM OF DITCH.
PROVIDE STAPLES MADE OF 0.125 IN. DIAMETER STEEL WIRE
FORMED INTO A U SHAPE NOT LESS THAN 12" IN LENGTH.
INSTALL STAPLES APPROXIMATELY EVERY 1 LINEAR FOOT ON
BOTH SIDES OF WATTLE AND AT EACH END TO SECURE IT TO THE SOIL.
INSTALL MATTING IN ACCORDANCE WITH SECTION 1631 OF THE
STANDARD SPECIFICATIONS.
INSET A
INSET B
TOP VIEW
H/2+1'
E(2' MIN)
1
I. DESCRIPTION
EXISTING
GRADE
GEOMEMBRANE ! _
SANDBAGS DISTURBED AREA
SECTION A -A
THE WORK SHALL CONSIST OF INSTALLING A PUMP AROUND WHEN
CONSTRUCTION ACTIVITIES TAKE PLACE WITHIN THE STREAM CHANNEL
H. MATERIAL SPECIFICATIONS
SANDBAGS: SANDBAGS SHALL CONSIST OF MATERIALS WHICH ARE RESISTANT
TO ULTRAVIOLET RADIATION, TEARING AND PUNCTURE, AND WOVEN TIGHTLY
ENOUGH TO PREVENT LEAKAGE OF FILL MATERIALS (I.E. SAND, FINE GRAVEL,
ETC.)
III. CONSTRUCTION REQUIREMENTS
1. ALL EROSION AND SEDIMENT CONTROL DEVICES SHALL BE INSTALLED AS THE
FIRST ORDER OF WORK.
2. THE HEIGHT OF THE SANDBAGS SHALL BE AS INDICATED IN SECTION A -A.
THE SANDBAGS SHALL BE PLACED ON A SMOOTH PREPARED SURFACE.
3. ALL EXCAVATED MATERIALS SHALL BE DISPOSED OF OUTSIDE THE 100 YEAR
FLOOD PLAIN UNLESS APPROVED ON THE PLANS.
4. ALL DEWATERING OF THE CONSTRUCTION AREA SHALL BE PUMPED TO A
DEWATERING PUMP DISCHARGE FILTER BAG OR SILT BASIN.
5. THE PUMP SHALL BE OF SUFFICIENT SIZE TO CONVEY NORMAL STREAM
FLOW.
6. SEDIMENT CONTROL DEVICES ARE TO REMAIN IN PLACE UNTIL ALL
DISTURBED AREAS ARE STABILIZED AND THE COUNTY ENGINEERING DEPT
APPROVES THEIR REMOVAL.
TEMPORARY CREEK PUMP AROUND
NTS
PROTECTION OF EXISTING VEGETATION:
AT THE START OF GRADING INVOLVING THE LOWERING OF EXISTING GRADE
AROUND A TREE OR STRIPPING OF TOPSOIL, A CLEAN, SHARP, VERTICAL CUT
SHALL BE MADE AT THE EDGE OF THE TREE SAVE AREA AT THE SAME TIME
AS OTHER EROSION CONTROL MEASURES ARE INSTALLED. THE TREE
PROTECTION FENCING SHALL BE INSTALLED ON THE SIDE OF THE CUT
FARTHEST AWAY FROM THE TREE TRUNK AND SHALL REMAIN IN PLACE UNTIL
ALL CONSTRUCTION IN THE VICINITY OF THE TREE IS COMPLETE. NO STORAGE
OF MATERIALS, FILL, OR EQUIPMENT AND NO TRESPASSING SHALL BE ALLOWED
WITHIN THE BOUNDARY OF THE PROTECTED AREA.
L
L
10' 0.C. MAX.
1 9L 9L 1 1( 9L 9L
L 1 1[ 1L 1L 1 1[ 1 L
1 1 L 1 L 1 1 1 L 1 L
L 1 1[ 1L 1L 1 1[ 1
1 1 L 1 L 1 1 1 L 1 L
L H 9[ IL IL IL IL I
///\r\ tALPI SAFETY r
FENCE-/\ •
FLUORESCENT
ORANGE
FASTEN FENCE TO
°-"PERFORATED CHANNELS
ON METAL POSTS
1-
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TREE PROTECTION FENCE DETAIL
NTS
AREAS TO BE DISTURBED,
0.5 AC OR LESS
SEDIMENT STORAGE
FLOOD STORAGE ZONE
WETLANDS / FORESTED AREA
CLASS B RIPRAP
NCDOT #5 OR #57 WASHED STONE
MAX. SEDIMENT DEPTH (CLEAN OUT POINT)
STONE FILTER OUTLET WITH SEDIMENT STORAGE
STEEL POST
WIRE FENCE
8' MAX. STANDARD STRENGTH FABRIC WITH WIRE FENCE
6' MAX. EXTRA STRENGTH FABRIC WITHOUT WIRE FENCE
24"
1
18- 24"
c
NATURAL
GROUND
CONSTRUCTION SPECIFICATIONS:
MATERIALS
STEEL POST
24"
WIRE FENCE
FILTER FABRIC
BACKFILL TRENCH
AND COMPACT
THOROUGHLY
8" MIN.
4" MIN.
UPSLOPE
PLASTIC OR
WIRE TIES
NATURAL GROUND
FILTER FABRIC
NATURAL
GROUND
1. USE A SYNTHETIC FILTER FABRIC OF AT LEAST 95% BY WEIGHT OF POLYOLEFIN OR POLYESTER, WHICH IS CERTIFIED BY THE MANUFACTURER OR
SUPPLIER AS CONFIRMING TO THE REQUIREMENTS IN ASTM D 6461, WHICH IS SHOWN IN PART IN TABLE 6.62B OF THE EROSION AND SEDIMENT
CONTROL PLANNING AND DESIGN MANUAL PUBLISHED BY NC DEQ_
SYNTHETIC FILTER FABRIC SHOULD CONTAIN ULTRA VIOLET RAY INHIBITORS AND STABILIZERS TO PROVIDE A MINIMUM OF 6 MONTHS OR EXPECTED
USABLE CONSTRUCTION LIFE AT A TEMPERATURE RANGE OF 0 TO 120° F.
2. ENSURE THAT POSTS FOR SEDIMENT FENCES ARE 1.25 LB/LINEAR FT MINIMUM STEEL WITH A MINIMUM LENGTH OF 5'. 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 OR 6
INCHES.
CONSTRUCTION
1. CONSTRUCT THE SEDIMENT BARRIER OF STANDARD STRENGTH OR EXTRA STRENGTH SYNTHETIC FILTER FABRICS.
2. ENSURE THAT THE HEIGHT OF THE SEDIMENT FENCE DOES NOT EXCEED 24 INCHES ABOVE THE GROUND SURFACE. (HIGHER FENCES MAY IMPOUND
VOLUMES OF WATER SUFFICIENT TO CAUSE FAILURE OF THE STRUCTURE.)
3. CONSTRUCT THE FILTER FABRIC FROM A CONTINUOUS ROLL CUT THE LENGTH OF THE BARRIER TO AVOID JOINTS. WHEN JOINTS ARE NECESSARY,
SECURELY FASTEN THE FILTER CLOTH ONLY AT A SUPPORT POST WITH 4 FEET MINIMUM 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 THE WIRE REINFORCEMENT, THEN FABRIC ON THE UPSLOPE SIDE OF THE FENCE POST. WIRE OR
PLASTIC ZIP TIES SHOULD HAVE A MINIMUM 50 POUND 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 FT POST SPACING DOES NOT REQUIRE WIRE MESH SUPPORT FENCE. SECURELY FASTEN THE FILTER FABRIC
DIRECTLY TO POSTS. WIRE OR PLASTIC ZIP TIES SHOULD HAVE A 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 SOIL PLACED OVER THE FILTER FABRIC AND COMPACT. THROUGH COMPACTION OF THE BACKFILL IS CRITICAL TO SILT
FENCE PERFORMANCE.
10. DO NOT ATTACH FILTER FABRIC TO EXISTING TREES.
MAINTENANCE:
INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED REPAIRS IMMEDIATELY.
SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT RAIN AND TO REDUCE PRESSURE ON THE FENCE.
TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEANOUT.
REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE AND STABILIZE IT AFTER THE CONTRIBUTING
DRAINAGE AREA HAS BEEN PROPERLY STABILIZED.
SILT FENCE DETAIL
NC DEQ FIGURE 6.62A / NTS
CONSTRUCTION SPECIFICATIONS:
1. REMOVE AND PROPERLY DISPOSE OF ALL TREES, BRUSH, STUMPS, AND OTHER
OBJECTIONABLE MATERIAL.
2. ENSURE THAT THE MINIMUM CONSTRUCTED CROSS SECTION MEETS ALL DESIGN
REQUIREMENTS.
3. ENSURE THAT THE TOP OF THE DIKE IS NOT LOWER AT ANY POINT THAN THE DESIGN
ELEVATION PLUS THE SPECIFIED SETTLEMENTS.
4. PROVIDE SUFFICIENT ROOM AROUND DIVERSIONS TO PERMIT MACHINE RE -GRADING AND
CLEANOUT.
5. VEGETATE THE RIDGE IMMEDIATELY AFTER CONSTRUCTION, UNLESS IT WILL REMAIN IN
PLACE LESS THAN 30 WORKING DAYS. INSPECT TEMPORARY DIVERSIONS ONCE A WEEK
AND AFTER EVERY RAINFALL.
MAINTENANCE:
IMMEDIATELY REMOVE SEDIMENT FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE.
CAREFULLY CHECK OUTLETS AND MAKE TIMELY REPAIRS AS NEEDED. WHEN THE AREA
PROTECTED IS PERMANENTLY STABILIZED, REMOVE THE RIDGE AND THE CHANNEL TO BLEND
WITH THE NATURAL GROUND LEVEL AND APPROPRIATELY STABILIZE IT.
COMPACTED SOIL
2' MIN.
11 11 11
6' TYPICAL
18" MIN ON
TEMPORARY DIVERSION DITCH
NTS
2-3" WASHED STONE
COARSE AGGREGATE
(6" THICK MINIMUM)
CONSTRUCTION ENTRANCE/EXIT
CONSTRUCTION SPECIFICATIONS:
1.) CLEAR THE ENTRANCE AND EXIT AREA OF ALL VEGETATION, ROOTS, AND
OTHER OBJECTIONABLE MATERIAL AND PROPERLY GRADE IT.
2.) PLACE THE GRAVEL TO THE SPECIFIC GRADE AND DIMENSIONS SHOWN ON THE
PLANS, AND SMOOTH IT.
3.) PROVIDE DRAINAGE TO CARRY WATER TO A SEDIMENT TRAP OR OTHER
SUITABLE OUTLET.
4.) USE GEOTEXTILE FABRICS BECAUSE THEY IMPROVE THE STABILITY OF THE
FOUNDATION IN LOCATIONS SUBJECT TO SEEPAGE OR HIGH WATER TABLE.
MAINTENANCE:
MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM
LEAVING THE CONSTRUCTION SITE. THIS MAY REQUIRE PERIODIC TOPDRESSING
WITH 2-INCH STONE. AFTER EACH RAINFALL, INSPECT ANY STRUCTURE USED TO
TRAP SEDIMENT AND CLEAN IT OUT AS NECESSARY. IMMEDIATELY REMOVE ALL
OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC
ROADWAYS.
PROJECT INFORMATION
PROJECT DESCRIPTION
THE PURPOSE OF THE PROJECT IS TO CONSTRUCT A 13 LOT SINGLE-FAMILY HOME SUBDIVISION WITH ASSOCIATED
ROADWAY PER ORANGE COUNTY STANDARDS. THE SITE IS LOCATED ON ORANGE GROVE ROAD IN ORANGE COUNTY,
NORTH CAROLINA.
SITE DESCRIPTION
THE SITE IS A LARGE WOODED 55.59 ACRE TRACT, MOSTLY UNDEVELOPED. AN EXISTING POLE BARN IS LOCATED
ABOVE AN EXISTING WET POND APPROXIMATELY 400' FROM ORANGE GROVE ROAD WHICH DRAINS TO A LARGE
STREAM AND WETLAND AREA DRAINING FROM NORTH TO SOUTH. A SECOND STREAM IS LOCATED ALONG THE
EASTERN PROPERTY BOUNDARY ON SITE, AND CONVERGES WITH THE INITIAL STREAM SOUTH OF THE PROPERTY.
ADJACENT PROPERTY
THE NEIGHBORING PROPERTIES THAT FRONT ORANGE GROVE ROAD ARE DEVELOPED AS SINGLE FAMILY LOTS WITH
OTHER ADJACENT PROPERTIES BEING LARGE UNDEVELOPED TRACTS OF LAND.
NARRATIVE
PLANNED EROSION AND SEDIMENTATION CONTROL PRACTICES
SEDIMENT FENCE/ SILT FENCE OUTLETS
SEDIMENT FENCE WILL BE CONSTRUCTED ALONG THE DOWNSTREAM PERIMETER OF THE SITE. SILT FENCE
OUTLETS ARE PROVIDED AT THE LOW POINTS ALONG THE SEDIMENT FENCE LINE OR ARE POSITIONED WITH
SILT FENCE CUT-OFFS TO REDUCE FLOWS ALONG THE SILT FENCE.
2. TURBIDITY CURTAIN
A TURBIDITY CURTAIN IS PROVIDED BELOW THE PRIMARY DISCHARGES INTO THE EXISTING POND TO PREVENT
TRANSPORT OF SEDIMENT THROUGH THE EXISTING POND TO THE STREAM BELOW.
3. TEMPORARY DIVERSIONS
TEMPORARY DIVERSIONS ARE PROVIDED ALONG THE EDGES OF FILL SLOPES TO DIRECT SEDIMENT LADEN
WATER TO THE SEDIMENT BASINS FOR FILTRATION AND TO PREVENT EROSION OF FILL SLOPES AND PREVENT
RUNOFF FROM ENTERING THE UNDERGROUND STORAGE CHAMBERS PRIOR TO STABILIZATION OF PARKING
FACILITIES.
4. ROCK INLET PROTECTION
ROCK INLET PROTECTION IS PROVIDED AT CULVERTS TO PREVENT SEDIMENTATION OF THE PROPOSED
UNDERGROUND STORAGE PIPES.
5. CONSTRUCTION ENTRANCE/EXIT
A TEMPORARY CONSTRUCTION ENTRANCE/EXIT WILL BE CONSTRUCTED OFF OF SPRING FOREST DRIVE IN THE
LOCATION OF THE PERMANENT ENTRANCE.
6. RIP RAP APRON
PERMANENT STABILIZATION WILL BE INSTALLED BELOW PIPE OR FLUME OUTLETS AS INDICATED.
7. SEDIMENT BASINS/TRAPS
WHERE RUNOFF COLLECTS AT THE LOW POINTS OF LARGER DRAINAGE AREAS, SEDIMENT TRAPS/BASINS ARE
PROVIDED TO FILTER SEDIMENT LADEN RUNOFF PRIOR TO DISCHARGE.
CONSTRUCTION SCHEDULE
1. OBTAIN PLAN APPROVAL AND OTHER APPLICABLE PERMITS.
2. HOLD PRECONSTRUCTION CONFERENCE PRIOR TO STARTING CONSTRUCTION.
3. CLEAR AS NECESSARY TO INSTALL PERIMETER MEASURES, CONSTRUCTION ENTRANCE/EXIT AND SEDIMENT
TRAPS/STONE FILTER OUTLETS WEST OF THE STREAM CROSSING.
4. INSTALL PERIMETER MEASURES, CONSTRUCTION ENTRANCE/EXIT, TURBIDITY CURTAIN AND SEDIMENT
TRAPS/STONE FILTER OUTLETS.
5. PUMP OUT AND DREDGE EXISTING POND IN ORDER TO INSTALL NEW CONTROL STRUCTURE, BARREL AND 10'
BERM. REMOVE ALL TREES WITHIN 10' OF TOE OF SLOPE AND STABILIZE SLOPE IMMEDIATELY USING MATTING.
6. CLEAR AS NEEDED TO ACCESS STREAM CROSSING AND INSTALL PUMP AROUND SYSTEM.
7. INSTALL STREAM CROSSING.
8. CLEAR AND STRIP REMAINDER OF SITE.
9. ROUGH GRADE PRIVATE ROAD.
10. INSTALL ROAD CULVERTS AT ENTRANCE AND ABOVE POND.
11. UPON COMPLETION OF FILL, STABILIZE BACKSLOPES IMMEDIATELY.
12. GRADE SUBGRADE.
13. INSTALL STONE BASE.
14. FINE GRADE FILL SLOPES AND DITCHES. INSTALL TEMPORARY LINERS AS NOTED.
15. INSTALL PERMANENT APRONS AND STABILIZE ALL REMAINING DISTURBED AREAS.
16. INSPECT ALL EROSION AND SEDIMENT CONTROL PRACTICES WEEKLY AND AFTER RAINFALL EVENTS. MAKE
NEEDED REPAIRS IMMEDIATELY.
17. AFTER SITE IS STABILIZED, REMOVE ALL TEMPORARY EROSION CONTROL MEASURES AND INSTALL PERMANENT
VEGETATION ON THE DISTURBED AREAS.
MAINTENANCE PLAN
CHECK ALL EROSION AND SEDIMENT CONTROL PRACTICES FOR STABILITY AND OPERATION FOLLOWING EVERY
RAINFALL PRODUCING RUNOFF BUT IN NO CASE LESS THAN ONCE EVERY WEEK. MAKE ANY NEEDED REPAIRS
IMMEDIATELY TO MAINTAIN ALL PRACTICES AS DESIGNED. FOLLOW ALL REQUIREMENTS OF NPDES PHASE II
PERMIT.
2. REMOVE SEDIMENT FROM BEHIND SILT FENCE OUTLETS AND STONE FILTERS WHEN STORAGE CAPACITY HAS
BEEN APPROXIMATELY 50% FILLED. CLEAN OR REPLACE GRAVEL ON OUTLETS WHEN THE WATER POOLS AND IS
NO LONGER DRAINING PROPERLY.
3. CLEAN TRAPS WHEN SEDIMENT ACCUMULATES TO WITHIN ONE FOOT OF THE WEIR CREST ELEVATION. CHECK
TRAPS FOR EVIDENCE OF BYPASS OR BREACH AFTER EACH RAINFALL AND REPAIR IMMEDIATELY.
4. SEED AND STABILIZE ALL DISTURBED AREAS IN ACCORDANCE WITH STABILIZATION TABLE PRESENTED ON THIS
SHEET.
NOTE:
STRUCTURAL STONE SHALL BE
(CLASS "B") STONE FOR EROSION
CONTROL PURPOSES.
SEDIMENT CONTROL STONE SHALL
BE #5 OR #57 STONE
1'
SEDIMENT
CONTROL
STONE
2
SILT FENCE
1'-6" MIN.
[STRUCTURAL
STONE
CROSS SECTION
2'
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04/12/2021
N
DATE:
HORIZONTAL SCALE:
VERTICAL SCALE:
PROJECT MANAGER:
DRAWN BY:
PROJECT NO:
DRAWING NAME:
DECEMBER 10, 2020
N/A
N/A
CPK
SCS
19-018
19-018 DETAILS
THIS DRAWING AND THE DESIGN HEREON ARE
THE PROPERTY OF EarthCentric Engineering, Inc.
THE INFORMATION ON THIS DRAWING IS NOT FOR
USE ON ANY OTHER SITE OR PROJECT. THE
REPRODUCTION OR OTHER USE OF THIS
DRAWING IN WHOLE OR IN PART, WITHOUT
WRITTEN CONSENT OF EarthCentric Engineering, Inc.,
IS PROHIBITED.
COPYRIGHT 2021 EarthCentric Engineering, Inc.
SHEET NO.
PRELIMINARY
P:\19-018\19-018 Drawings\ Working\19-018 Details.dwg, D2.0 EC Details, 4/14/2021 10:20:18 AM

PIN# 9840-33-9815 & 9840-43-9598
FLARED END SECTION -INLET
DIAMETER
z
t
- D
C
B
DIAMETER
SECTION Z-Z
FLARED END SECTION -OUTLET
z
DIAMETER
T
DIAMETER + 1" DIAMETER
C
D
L_
B
x
DIAMETER + 1"
r
SECTION X-X
PIPE
DIAMETER
WALL
THICKNESS
SLOPE
BCDE
WEIGHT
12
2 1/4
3:1
24
49
73
24
730
15
2 1/4
3:1
27
46
73
30
910
18
2 1/2
3:1
27
46
73
36
1 190
21
2 3/4
3:1
36
37
73
42
1370
DIMENSIONS IN INCHES WEIGHT IN POUNDS
INLET & OUTLET FLARED END SECTIONS
1/4 IN. TIE ROPE
TURBIDITY CURTAIN
3/8 IN. POLYPROPYLENE ROPE
FLOATATION
TFOLD FOR COMPACT STORAGE
DEPTH ACCORD/NG
TO NEED
(Ilfurq)!
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ECONOMY FABRICS AVAILABLE
18 OZ. 300 LB IN. STANDARD
NYLON
REINFORCED
VINYL
ALL SEAMS
HEAT SEALED
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SHACKLE CONNECTION)
TYPE I
1/4" CHAIN
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TURBIDITY C UR TAIN
TYPICAL LAYOUTS:
STREAMS, PONDS & LAKES (PROTECTED & NON -TIDAL)
STREAM FLOW
ANCHOR PT.
SHORELINE
LIMITS OF
CONSTR.
ANCHOR PT.
) 100'*
TYP.
TURBIDITY
CURTAIN
yA
SHORELINE
STAKE OR ANCHOR,
EVERY 100' (TYPICAL)
FILL AREA
* THIS DISTANCE IS VARIABLE
TIDAL WATERS AND/OR HEAVY WIND & WAVE ACTION
FLOOD
EBB
TYp *
SHORELINE
ANCHOR PT.
* THIS DISTANCE IS VARIABLE
EXISTING
CAUSEWAY
ANCHOR &
ANCHOR BUOY
BARRIER MOVEMENT
DUE TO TIDAL CHANGE
FILL AREA
PROPOSED TOE
OF SLOPE
SHORELINE
ANCHOR PT.
APRON LENGTH
APRON WIDTH AT
THE OUTLET IS 1.5
TIMES THE WIDTH
OF THE F.E.S.
RIP -RAP 20% A
PLAN VIEW
FLARED END
SECTION
SLOPE OF EXISTING CHANNEL
SECTION A -A
THERE MUST BE NO OVERALL
AT THE END OF THE APRON.
z
0
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RIP -RAP
-MINIMUM
DEPTH OF
STONE
WHEN THE AREA BELOW THE OUTLET
IS NOT A DEFINED CHANNEL, BUILD A
FLAT APRON TO DISPERSE RUNOFF.
FILTER
BLANKET
SECTION B-B
WHERE A DEFINED CHANNEL EXISTS,
WRAP AND SHAPE THE APRON TO FIT
THE CHANNEL. IF NECESSARY, LINE THE
ENTRANCE TO PROVIDE A TRANSITION
INTO THE RECEIVING CHANNEL.
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SECTION B-B
INSTRUCTIONS FOR
RIP RAP APRON /
STONE APRON OUTLET PROTECTION
INSTALLATION
FILTER
BLANKET
1. REFER TO THE PLANS FOR LOCATION, EXTENT, AND SPECIFICATIONS. IF THERE ARE QUESTIONS OR
PROBLEMS WITH THE LOCATION, EXTENT, OR METHOD OF INSTALLATION, CONTACT THE ENGINEER,
ARCHITECT, OR RESPONSIBLE PERSONNEL ON THE SITE FOR ASSISTANCE. EROSION CONTROL
PERSONNEL HAVE COPIES OF INSTRUCTIONS AND MAY HAVE PHOTOGRAPHS OR PROPERLY INSTALLED
APRONS AS A AID TO INSTALLATION.
IF THE STONE APRON IS NOT INSTALLED CORRECTLY THE FIRST TIME, IT WILL HAVE TO BE REBUILT.
2. DETERMINE THE LOCATION ON THE GROUND TAKING INTO CONSIDERATION:
* DECIDE HOW EQUIPMENT AND MATERIAL WILL REACH THE LOCATION TO CONSTRUCT THE APRON. DO
NOT "PAINT YOURSELF INTO A CORNER" AND PLACE FILL, STRUCTURES, ETC. THAT COULD BLOCK
ACCESS.
* THE LOCATION OF THE APRON MUST BE SOLID GROUND. IT MAY BE NECESSARY TO EXCAVATE THE
LOCATION TO REMOVE MUD AND THEN BACKFILL WITH GOOD MATERIAL. THIS IS NECESSARY SO THE
STONE DOES NOT DISAPPEAR INTO THE MUD, WHICH WOULD REQUIRE MUCH MORE STONE TO COMPLETE
THE APRON AND MAKE INSTALLATION DIFFICULT.
3. CLEAR THE LOCATION OF THE APRON. LEAVE AS MUCH OF THE EXISTING VEGETATION AS POSSIBLE
AROUND THE LOCATION TO HOLD THE SOIL IN PLACE AND REDUCE THE AREA THAT WILL HAVE TO BE
STABILIZED AFTERWARD.
4. EXCAVATE THE BOTTOM TO THE REQUIRED DEPTH TO ACCEPT THE STONE AND THE FILTER BLANKET.
WHEN FINISHED, THE BOTTOM OF THE APRON MUST BE LEVEL WITH THE BOTTOM OF THE CHANNEL;
THERE CANNOT BE AN OVERALL AT THE END OF THE APRON.
5. PLACE THE FILTER BLANKET, AS SPECIFIED IN THE PLAN, OVER THE LOCATION AND UNDER THE LIP OF
THE FLARED END SECTION.
6. PLACE THE SPECIFIED STONE TO THE REQUIRED DIMENSIONS AND SHAPE IT TO THE CONFIGURATION
SHOWN IN THE PLAN.
7. STABILIZE THE AREA AROUND THE APRON THAT WAS DISTURBED DURING CONSTRUCTION. USE
ADDITIONAL STONE OR VEGETATION, WHICHEVER IS APPROPRIATE FOR THE SITUATION.
RIP RAP APRON
NTS
4.
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1 ANCHOR NETTING IN
A 6-INCH TRENCH
IN CHANNELS, ROLL OUT STRIPS OF
NETTING PARALLEL TO THE DIRECTION OF
FLOW AND OVER THE PROTECTIVE MULCH.
JOIN STRIPS BY
ANCHORING AND
OVERLAPPING.
INSTALLATION OF NETTING AND MATTING
PRODUCTS DESIGNED TO CONTROL EROSION SHOULD BE INSTALLED IN ACCORDANCE WITH
MANUFACTURER'S INSTRUCTIONS.
ANY MAT OR BLANKET -TYPE PRODUCT USED AS A PROTECTIVE MULCH SHOULD PROVIDE COVER OF AT
LEAST 30% OF THE SURFACE WHERE IT IS APPLIED.
1. APPLY LIME, FERTILIZER AND SEED BEFORE LAYING THE NET OR MAT.
2. START LAYING THE NET FROM THE TOP OF THE CHANNEL OR SLOPE AND UNROLL IT DOWN THE
GRADE. ALLOW NETTING TO LAY LOOSELY ON THE SOIL BUT WITHOUT WRINKLES - DO NOT STRETCH.
3. TO SECURE THE NET, BURY THE UPSLOPE END IN A SLOT OR TRENCH NO LESS THAN 6 INCHES
DEEP, COVER WITH SOIL, AND TAMP FIRMLY. STAPLE THE NET EVERY 12 INCHES ACROSS THE TOP
END AND EVERY 3 FEET AROUND THE EDGES AND BOTTOM. WHERE 2 STRIPS OF NET ARE LAID SIDE
BY SIDE, THE ADJACENT EDGES SHOULD BE OVERLAPPED 3 INCHES AND STAPLED TOGETHER. EACH
STRIP OF NETTING SHOULD ALSO BE STAPLED DOWN THE CENTER, EVERY 3 FEET. DO NOT STRETCH
THE NET WHEN APPLYING STAPLES.
4. TO JOIN TWO STRIPS, CUT A TRENCH TO ANCHOR THE END OF THE NEW NET. OVERLAP THE END
OF THE PREVIOUS ROLL 18 INCHES AND STAPLE EVERY 12 INCHES JUST BELOW THE ANCHOR SLOT.
MAINTENANCE
INSPECT ALL MULCHES PERIODICALLY, AND AFTER RAINSTORMS TO CHECK FOR RILL EROSION,
DISLOCATION, OR FAILURE. WHERE EROSION IS OBSERVED, APPLY ADDITIONAL MULCH. IF WASHOUT
OCCURS, REPAIR THE SLOPE GRADE, RESEED, AND REINSTALL MULCH. CONTINUE INSPECTIONS UNTIL
VEGETATION IS FIRMLY ESTABLISHED.
NETS AND MATS
PERMANENT SEEDING SCHEDULE:
SEEDING MIXTURE:
SPECIES
TALL FESCUE
SERICEA LESPEDEZA
KOBE LESPEDEZA
RATE (LB/AC)
80
20
10
SEEDING NOTES:
1. AFTER AUGUST 15, USE UN -SCARIFIED SERICEA SEED.
2. WHERE PERIODIC MOWING IS PLANNED OR A NEAT APPEARANCE IS DESIRED, OMIT
SERICEA AND INCREASE KOBE LESPEDEZA TO 40 LB/ACRE.
3. TO EXTEND SPRING SEEDING DATES INTO JUNE, ADD 15 LB/ACRE HULLED BERMUDA
GRASS. HOWEVER, AFTER MID-APRIL IT IS PREFERABLE TO SEED TEMPORARY
COVER.
NURSE PLANTS:
BETWEEN MAY 1 AND AUG. 15, ADD 10 LB/ACRE GERMAN MILLET OF 15 LB/ACRE
SUDAN GRASS. PRIOR TO MAY 1 OR AFTER AUG. 15 ADD 40 LB/ACRE RYE (GRAIN).
SEEDING DATES:
FALL:
LATE WINTER:
BEST
AUG. 25 - SEPT. 15
FEB. 15 - MAR. 21
POSSIBLE
AUG. 20 - OCT. 25
FEB. 1 - APR. 15
FALL IS BEST FOR TALL FESCUE AND LATE WINTER FOR LESPEDEZAS.
SOIL AMENDMENTS:
APPLY LIME AND FERTILIZER ACCORDING TO SOIL TESTS, OR APPLY 4,000 LB/ACRE
GROUND AGRICULTURAL LIMESTONE AND 1,000 LB/ACRE 10-10-10 FERTILIZER, EXCEPT,
APPLY NO FERTILIZER TO AREAS WITHIN THE NEUSE RIVER RIPARIAN BUFFERS.
MULCH:
APPLY 4,000 LB/ACRE GRAIN STRAW OR EQUIVALENT COVER OF ANOTHER SUITABLE
MULCH. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR ROVING OR BY
CRIMPING WITH A MULCH ANCHORING TOOL. A DISK WITH BLADES NEARLY STRAIGHT
CAN BE USED AS A MULCH ANCHORING TOOL.
TEMPORARY SEEDING SCHEDULES
TABLE 6-10A:
TEMPORARY SEEDING RECOMMENDATIONS FOR
LATE WINTER AND EARLY SPRING
SEEDING MIXTURE
SPECIES RATE (LB/ACRE)
RYE (GRAIN) 120
ANNUAL LESPEDEZA (KOBE IN
PIEDMONT AND COASTAL PLAIN,
KOREAN IN MOUNTAINS) 50
OMIT ANNUAL LESPEDEZA WHEN DURATION OF TEMPORARY COVER IS NOT TO EXTEND
BEYOND JUNE.
SEEDING DATES
MOUNTAINS - ABOVE 2500 FT: FEB. 15 - MAY 15
BELOW 2500 FT: FEB. 1 - MAY 1
PIEDMONT - JAN. 1 - MAY 1
COASTAL PLAIN - DEC. 1 - APR. 15
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR
A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED
AS A MULCH ANCHORING TOOL.
MAINTENANCE
RE -FERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, RE -FERTILIZE AND MULCH
IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
TABLE 6.10B
TEMPORARY SEEDING RECOMMENDATIONS FOR SUMMER
SEEDING MIXTURE
SPECIES
GERMAN MILLET
RATE (LB/ACRE)
40
IN THE PIEDMONT AND MOUNTAINS, A SMALL -STEMMED SUDAN GRASS MAY BE
SUBSTITUTED AT A RATE OF 50 LB/ACRE.
SEEDING DATES
MOUNTAINS - MAY 15 - AUG.15
PIEDMONT - MAY 1 - AUG.15
COASTAL PLAIN - APR. 15 - AUG. 15
SOIL AMENDMENTS
FOLLOW RECOMMENDATIONS OF SOIL TESTS OR APPLY 2,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 750 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR
A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED
AS A MULCH ANCHORING TOOL.
MAINTENANCE
RE -FERTILIZE IF GROWTH IS NOT FULLY ADEQUATE. RESEED, RE -FERTILIZE AND MULCH
IMMEDIATELY FOLLOWING EROSION OR OTHER DAMAGE.
TABLE 6.10C
TEMPORARY SEEDING RECOMMENDATIONS FOR FALL
SEEDING MIXTURE
SPECIES RATE (LB/ACRE)
RYE (GRAIN) 120
SEEDING DATES
MOUNTAINS - AUG. 15 - DEC 15
COASTAL PLAIN AND PIEDMONT - AUG. 15- DEC. 30
SOIL AMENDMENTS
FOLLOW SOIL TESTS OR APPLY 2.000 LB/ACRE GROUND AGRICULTURAL LIMESTONE AND
1.000 LB/ACRE 10-10-10 FERTILIZER.
MULCH
APPLY 4,000 LB/ACRE STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTING, OR
A MULCH ANCHORING TOOL. A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED
AS A MULCH ANCHORING TOOL.
MAINTENANCE
REPAIR AND RE -FERTILIZE DAMAGED AREAS IMMEDIATELY. TOP -DRESS WITH 50 LB/ACRE
OF NITROGEN IN MARCH. IF IT IS NECESSARY TO EXTEND TEMPORARY COVER BEYOND
JUNE 15, OVER -SEED WITH 50 LB/ACRE KOBE (PIEDMONT AND COASTAL PLAIN) OR
KOREAN (MOUNTAINS) LESPEDEZA IN LATE FEBRUARY OR EARLY MARCH.
STABILIZATION TIME TABLE
SITE AREA DESCRIPTION
PERIMETER DIKES, SWALES, DITCHES
AND SLOPES
STABILIZATION TIMEFRAME EXCEPTIONS
7 DAYS NONE
HIGH QUALITY WATER (HWQ) ZONES 7 DAYS NONE
SLOPES STEEPER THAN 3:1 7 DAYS
SLOPES 3:1 OR FLATTER
ALL OTHER AREAS WITH SLOPES
IF SLOPES ARE 10' IN
LENGTH AND ARE NOT
STEEPER THAN 2:1, 14
DAYS ARE ALLOWED
14 DAYS 7 DAYS FOR SLOPES
> 50' IN LENGTH
14 DAYS NONE, EXCEPT FOR FLATTER
THAN 4:1 PERIMETERS & HQW ZONES
DESIGN SETTLED TOP OF
BERM © CONSTANT GRADE
WEIR ELEVATION /
TOP OF STORAGE
EXISTING
GRADE
EXCAVATED
AREA
BOTTOM ©
CONSTANT GRADE
DESIGN
SETTLED
TOP -
CONSTRUCTION SPECIFICATIONS:
12" MIN OF NCDOT #5
OR #57 WASHED STONE
MINT
CROSS SECTION
PLAN VIEW
TEMPORARY SEDIMENT TRAP
NTS
A: DISTANCE BELOW GRADE,
TYPICALLY 1.5' MIN.
B: DISTANCE ABOVE GRADE,
VARIES
C: TOTAL DESIGN DEPTH FROM
EXISTING GRADE
D: INLETS TO TRAP © OR ABOVE
WEIR ELEVATION
5' MAX
FILTER FABRIC
OVERFILL 6"
FOR SETTLEMENT
NATURAL
GROUND
EMERGENCY
BY-PASS
6" BELOW
SETTLED
TOP OF DAM
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.
2. ENSURE THAT FILL MATERIAL FOR THE EMBANKMENT IS FREE OF ROOTS, WOODY VEGETATION, ORGANIC MATTER, AND OTHER OBJECTIONABLE
MATERIAL. PLACE THE FILL IN LIFTS NOT TO EXCEED 9 INCHES AND MACHINE COMPACT IT. OVER FILL THE EMBANKMENT 6 INCHES TO ALLOW FOR
SETTLEMENT.
3. CONSTRUCT THE OUTLET SECTION IN THE EMBANKMENT. PROTECT THE CONNECTION BETWEEN THE RIPRAP AND THE SOIL FROM PIPING BY USING
FILTER FABRIC OR A KEYWAY CUTOFF TRENCH BETWEEN THE RIPRAP STRUCTURE AND THE SOIL.
- PLACE THE FILTER FABRIC BETWEEN THE RIPRAP AND SOIL. EXTEND THE FABRIC ACROSS THE SPILLWAY FOUNDATION AND SIDES TO THE
TOP OF THE DAM; OR
- EXCAVATE A KEYWAY TRENCH ALONG THE CENTERLINE OF THE SPILLWAY FOUNDATION EXTENDING UP THE SIDES TO THE HEIGHT OF THE DAM.
THE TRENCH SHOULD BE AT LEAST 2 FT DEEP AND 2 FT WIDE WITH 1:1 SIDE SLOPES.
4. CLEAR THE POND AREA BELOW THE ELEVATION OF THE CREST OF THE SPILLWAY TO FACILITATE SEDIMENT CLEANOUT.
5. ALL CUT AND FILL SLOPES SHOULD BE 2:1 OR FLATTER.
6. ENSURE THAT THE STONE (DRAINAGE) SECTION OF THE EMBANKMENT HAS A MINIMUM BOTTOM WIDTH OF 3 FT AND MAXIMUM SIDE SLOPES OF 1:1
THAT EXTEND TO THE BOTTOM OF THE SPILLWAY SECTION.
7. CONSTRUCT THE MINIMUM FINISHED STONE SPILLWAY BOTTOM WIDTH, AS SHOWN ON THE PLANS, WITH 2:1 SIDE SLOPES EXTENDING TO THE TOP OF
THE OVER FILLED EMBANKMENT. KEEP THE THICKNESS OF THE SIDES OF THE SPILLWAY OUTLET STRUCTURE AT A MINIMUM OF 21 INCHES. THE WEIR
MUST BE LEVEL AND CONSTRUCTED TO GRADE TO ASSURE DESIGN CAPACITY.
8. MATERIAL USED IN THE STONE SECTION SHOULD BE A WELL -GRADED MIXTURE OF STONE WITH A D50 SIZE OF 9 INCHES (CLASS B EROSION
CONTROL STONE IS RECOMMENDED) AND A MAXIMUM STONE SIZE OF 14 INCHES. THE STONE MAY BE MACHINE PLACED AND THE SMALLER STONES
WORKED INTO THE VOIDS OF THE LARGER STONES. THE STONE SHOULD BE HARD, ANGULAR, AND HIGHLY WEATHER -RESISTANT.
9. DISCHARGE INLET 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).
10. ENSURE THAT THE STONE SPILLWAY OUTLET SECTION EXTENDS DOWNSTREAM PAST THE TOE OF THE EMBANKMENT UNTIL STABLE CONDITIONS
ARE REACHED AND OUTLET VELOCITY IS ACCEPTABLE FOR THE RECEIVING STREAM. KEEP THE EDGES OF THE STONE OUTLET SECTION FLUSH WITH
THE SURROUNDING GROUND, AND SHAPE THE CENTER TO CONFINE THE OUTFLOW STREAM (REFERENCES: OUTLET PROTECTION).
11. DIRECT EMERGENCY BYPASS TO NATURAL, STABLE AREAS. LOCATE BYPASS OUTLETS SO THAT FLOW WILL NOT DAMAGE THE EMBANKMENT.
12. STABILIZE THE EMBANKMENT AND ALL DISTURBED AREAS ABOVE THE SEDIMENT POOL AND DOWNSTREAM FROM THE TRAP IMMEDIATELY AFTER
CONSTRUCTION (REFERENCES: SURFACE STABILIZATION).
13. SHOW THE DISTANCE FROM THE TOP OF THE SPILLWAY TO THE SEDIMENT CLEANOUT LEVEL (ONE-HALF THE DESIGN DEPTH) ON THE PLANS AND
MARK IT IN THE FIELD.
14. INSTALL POROUS BAFFLES AS SPECIFIED IN PRACTICE 6.65, POROUS BAFFLES.
MAINTENANCE:
INSPECT TEMPORARY SEDIMENT TRAPS AT LEAST WEEKLY AND AFTER EACH SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENT AND REPAIR
IMMEDIATELY. REMOVE SEDIMENT AND RESTORE THE TRAP TO ITS ORIGINAL DIMENSIONS WHEN THE SEDIMENT HAS ACCUMULATED TO ONE-HALF THE
DESIGN DEPTH OF THE TRAP. PLACE THE SEDIMENT THAT IS REMOVED IN THE DESIGNATED DISPOSAL AREA AND REPLACE THE PART OF THE GRAVEL
FACING THAT IS IMPAIRED BY SEDIMENT.
CHECK THE STRUCTURE FOR DAMAGE FROM EROSION OR PIPING. PERIODICALLY CHECK THE DEPTH OF THE SPILLWAY TO ENSURE IT IS A MINIMUM
OF 1.5 FT BELOW THE LOW POINT OF THE EMBANKMENT. IMMEDIATELY FILL ANY SETTLEMENT OF THE EMBANKMENT TO SLIGHTLY ABOVE DESIGN
GRADE. ANY RIPRAP DISPLACED FROM THE SPILLWAY MUST BE REPLACED IMMEDIATELY.
AFTER ALL SEDIMENT -PRODUCING AREAS HAVE BEEN PERMANENTLY STABILIZED, REMOVE THE STRUCTURE AND ALL UNSTABLE SEDIMENT. SMOOTH
THE AREA TO BLEND WITH THE ADJOINING AREAS AND STABILIZE PROPERLY (REFERENCES: SURFACE STABILIZATION).
AREAS TO BE DISTURBED
(CUT, FILL, ETC.)
NOTE:
DIMENSIONS ARE MINIMUM
ACCEPTABLE UNLESS
OTHERWISE NOTED.
0
CLASS B RIP A
* INVERT P�PE,g /
'PERSPECTIVE VIEW
NO SCALE
SEDIMENT STORAGE
FLOOD STORAGE ZONE
PIPE INVERT
RIP RAP HEADWALL, 1' MIN
HEIGHT FROM ROAD SHOULDER
NATURAL
GROUND
FLOW
CLASS B RIP -RAP
NCDOT #5 OR #57 WASHED STONE
MAX. SEDIMENT DEPTH(CLEAN OUT POINT)
SECTION THRU BASIN, FILTER AND CULVERT PIPE
NO SCALE
NATURAL GROUND
RIP RAP HEADWALL
FILTER BERM NCDOT #5 OR #57 WASHED STONE
NOTE:
GRAVEL & RIP RAP FILTER BERM
BASIN DETAIL IS DESIGNED TO
PROTECT EXISTING PIPE INVERTS
THAT DRAIN 10 ACRES OR LESS.
(EXISTING PIPE INVERTS)
ROCK PIPE INLET PROTECTION
STD. No.
6.55.2
W
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04/12/2021
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DATE:
HORIZONTAL SCALE:
VERTICAL SCALE:
PROJECT MANAGER:
DRAWN BY:
PROJECT NO:
DRAWING NAME:
DECEMBER 10, 2020
N/A
N/A
CPK
SCS
19-018
19-018 DETAILS
THIS DRAWING AND THE DESIGN HEREON ARE
THE PROPERTY OF EarthCentric Engineering, Inc.
THE INFORMATION ON THIS DRAWING IS NOT FOR
USE ON ANY OTHER SITE OR PROJECT. THE
REPRODUCTION OR OTHER USE OF THIS
DRAWING IN WHOLE OR IN PART, WITHOUT
WRITTEN CONSENT OF EarthCentric Engineering, Inc.,
IS PROHIBITED.
COPYRIGHT 2021 EarthCentric Engineering, Inc.
SHEET NO.
P:\19-018\19-018 Drawings\_Working\19-018 Details.dwg, D2.1 EC Details, 4/14/2021 10:20:20 AM
PRELIMINARY

PIN# 9840-33-9815 & 9840-43-9598
DO NOT WRAP TRUNK; MARK THE NORTH
SIDE OF THE TREE IN THE NURSERY AND
LOCATE TO THE NORTH IN FIELD.
TRUNK FLARE AND TOP OF ROOT BALL
SHOULD BE AT GRADE IN WELL DRAINED
SOIL, UP TO 4 INCHES (10 CM) ABOVE
GRADE IN POORLY DRAINED SOILS.
NOTE: WIDTH OF PLANTING HOLE IS 3 TIMES
ROOT BALL DIAMETER IN HIGHLY COMPACTED
OR CLAY SOIL; 2 TIMES THE ROOT BALL
DIAMETER MINIMUM IN ALL OTHERS.
DIG WIDE PLANTING HOLE
WITH TAPERED SIDES*
// /\/\\\\\
/\
CUT BURLAP, ROPE AND WIRE BASKET AWAY
FROM TOP AND SIDES OF ROOT BALL.
SET BALL ON UNDISTURBED
SOIL TO PREVENT SETTLING.
*IF PLANTING HOLES ARE DUG WITH A
LARGE AUGER, BREAKING DOWN THE SIDES
WITH A SHOVEL CAN ELIMINATE GLAZING
AND CREATE THE PREFERRED SLOPING SIDE.
NOTES:
1. WHERE SEVERAL TREES WILL BE PLANTED CLOSE TOGETHER SUCH THAT
THEY WILL LIKELY SHARE ROOT SPACE, TILL IN SOIL AMENDMENTS TO A
DEPTH OF 4-6" (10-15 CM) OVER THE ENTIRE AREA.
2. FOR CONTAINER -GROWN TREES, USE FINGERS OR SMALL HAND TOOLS TO
PULL THE ROOTS OUT OF THE OUTER LAYER OF POTTING SOIL; THEN CUT
OR PULL APART ANY ROOTS CIRCLING THE PERIMETER OF THE CONTAINER.
AVOID PURCHASING TREES WITH TWO LEADERS OR REMOVE ONE
AT PLANTING. OTHERWISE, DO NOT PRUNE TREE AT PLANTING
EXCEPT FOR SPECIFIC STRUCTURAL CORRECTIONS.
DO NOT STAKE TREES EXCEPT WHERE SPECIFIED
BY LANDSCAPE ARCHITECT. IF STAKING IS
NECESSARY, USE TWO OPPOSING STAKES WITH
SEPARATE FLEXIBLE TIES. REMOVE STAKING AT
END OF FIRST GROWING SEASON.
2" (5 CM) BARK MULCH; DO NOT PLACE
MULCH IN CONTACT WITH TREE TRUNK
/\\//\\//\//�
4" (10 CM) RAISED RING OF SOIL TO
DIRECT WATER INTO ROOT BALL -
ESPECIALLY IMPORTANT IF TOP OF
ROOT BALL IS RAISED ABOVE GRADE.
\/\/\/\//\\
//
BEFORE PLANTING, ADD 3-4" (7-10
CM) OF WELL -COMPOSTED LEAVES,
RECYCLED YARD WASTE OR OTHER
COMPOST AND TILL INTO TOP 6" (15
CM) OF PREPARED SOIL. ADD COMPOST
AT 20-35% BY VOLUME TO BACKFILL.
EXTEND STAKES INTO
UNDISTURBED SOIL
4-6" (10-15 CM) DEEPER THAN ROOT
BALL FOR LOWERED PLANTING HOLE
AS NEEDED WITH POOR DRAINAGE.
PACK BACKFILL SOIL AROUND BASE OF ROOT
BALL TO STABILIZE; ALLOW REST OF BACKFILL
TO SETTLE NATURALLY, OR TAMP LIGHTLY.
TREE PLANTING DETAIL (B & B PLANTS)
ADAPTED FROM "ARCHITECTURAL GRAPHIC
STANDARDS" 1998 AND WATSON AND
HIMELICK "PRINCIPLES AND PRACTICE OF
PLANTING TREES AND SHRUBS" 1997.
3. DURING THE DESIGN PHASE, CONFIRM THAT WATER DRAINS OUT OF THE
SOIL; USE LOWERED PLANTING HOLE DEPTH AND DESIGN ALTERNATIVE
DRAINAGE SYSTEM AS REQUIRED.
4. THOROUGHLY SOAK THE TREE ROOT BALL AND ADJACENT PREPARED SOIL
SEVERAL TIMES DURING THE FIRST MONTH AFTER PLANTING AND
REGULARLY THROUGHOUT THE FOLLOWING TWO SUMMERS.
5. THE PLANTING PROCESS IS SIMILAR FOR DECIDUOUS AND EVERGREEN
TREES.
TREE PLANTING DETAIL
NTS
3-4" MULCH
GRASS-_\ 6-8
'7z
\\�, /\ SOIL MIX \\
"V-DITCH" EDGINGVN
ALL BEDLINES
6"
MIN.
NEW SHRUB
SAUCER
5//- SCARIFY SIDES OF
ROOT BALL
\\\'
COMPACTED SOIL MIX
SUBGRADE
SHRUB PLANTING & BED EDGING
\
\
O\S�P�Gc����'� \I
NOTE:
DISTANCE "X" FROM THE TREE SHALL
BE A MINIMUM OF 6 FEET OR 1 FOOT
FOR EVERY 1 INCH OF TREE CALIPER,
WHICHEVER IS GREATER
ROOT PROTECTION ZONE
NTS
10-YR
ELEV: 565.24
TRASH
RACK
PRECAST CONCRETE
RISER STRUCTURE
1.0'
in
h
5.0' x 5.0'
INV OUT
555.50
TOP OF RISER
ELEV: 565.25
100-YR
ELEV: 565.46
25-YR
ELEV: 565.32
2" ORFICES x 3 SIDES
ELEV: 564.51
63 LF
24" RCP @ 5.00%
CONCRETE ANTI -FLOTATION
BASE - 3000 PSI MINIMUM
MUST BE RODDED TO RISER
STRUCTURE
STORMWATER
CONTROL STRUCTURE
COMMUNITY
GARDEN z
/
//
LET
EDGE: 572.38
LINER:
STRAW W/NET
CLASS A EC STONE
3.75'Lx3.75'W
12"THICK
-
c 53 LF 15" CMP
@ 0.57% SLOPE
INV IN: 570.20
INV OUT: 569.90
ED /.: 572
HP: 572.79'� v vy. �_v �-�_,� G
GE: 572.08 �� 40 LF 15" CMP )� ALL AREAS ADJ. TO
@ 1.00% SLOPE POND SERVE AS
-•`INV IN: 569.80 MAINT• CORRIDOR
��� INV OUT: 569.4
P: 572.1 - - -
SILT FENCE
OUTLET
-_
CLASS A EC STONE
5'Lx6.25'W
12"THICK
TYPE 1 FLOATING
TURBIDITY CURTAIN
+ + + + +�
r'+ + + + + + + + + +-&_ + +�
. + +- � + + + + +- +__ + + + + -+ +
I + + + + + + + + + + + +
+ + + + + +-+- -+ +-+ + + + + + + + •
+ + + + + + + + + +- +- + + + 4 4
+ + + + + + + + + + + + + +
+ + + +-+ - +-+--+ + +_ + + + + +
_ + + + + + + + + ++ + +
.. + + -+_++ + + + + + + + +
••4.+ ++•-*_+ + + + + + 41
••_+ + +-+- _+� + +:
APPROXIMATE
LOCATION OF
SEPTIC FIELDS - -- --
i
\ \ \ V \v N / V /
\ V \ \ \ V A \ •/
/ /
.
\ \ \�� WATTLE , \ \\\C \ �I
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. \ \
\ \ \ \ \ L_ S* -
\, 20' WIDE STONE FILTER OUTLET W/1800 CO%
DRAINAGE AREA: 0.48 AC
TOP OF BERM" 547.00
\ BOT OF STORAGE: 544.00
' v \
SILT FENCE
i f A \
SANDBAGS FOR TEMP. 11
CREEK PUMP -AROUND
SYSTEM. SEE DETAIL
BUFFER IMPACTS:
2,174 SF IN ZONE 1
/
LINER:
STRAW
W/NET_
POND
(NON JURISDICTIONAL
OPEN WATER)
SEE SHEET D3.0
FOR PROPOSED
POND IMPROVEMENT
(
CONTROL STRUCTURE
5'X5' RISER W/
• •
TRASH RACK
• RIM: 565.25
v 3X2" ORIFICE, INV: 564.5
INV OUT: 555.50
/- -- �-�__�---\\ -- ��__\�. V \ \
\\\ -�--'- POND AREA
\ v 1 - 50
65.
/
BUFFER IMPACTS/
/
0
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/- WITHIN 10' OF TOE OF SLOPE
/ TREES AND WOODY VEGETATION 1/
--SLOPES IMMEDIATELY. REMOVE /v• z
REBUILD BERM TO PROVIDE 10' \
WIDTH AT CREST AND STABILIZE , \
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MADE IN THE
AVAILABLE MATERIALS:
CUSTOM SIZES AVAILABLE
AVAILABLE UPON REQUEST WITH:
ACCESS PORT
ANTI -VORTEX PLATES
11*TRASHRACKS.com
101 IRONWOOD ROAD
MIDDLESBORO, KY 40965
PH: [phone]
FAX: [phone]
LPK-6060
60"x60" PEAKED ROOF TRASH RACK
SIZE
,NG NO
173500
REV.
SHEET /
1111101110 CC CO
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DESCRIPTION
cc
cc
0
04/12/2021
DATE:
HORIZONTAL SCALE:
VERTICAL SCALE:
PROJECT MANAGER:
DRAWN BY:
PROJECT NO:
DRAWING NAME:
DECEMBER 10, 2020
N/A
N/A
CPK
SCS
19-018
19-018 DETAILS
THIS DRAWING AND THE DESIGN HEREON ARE
THE PROPERTY OF EarthCentric Engineering, Inc.
THE INFORMATION ON THIS DRAWING IS NOT FOR
USE ON ANY OTHER SITE OR PROJECT. THE
REPRODUCTION OR OTHER USE OF THIS
DRAWING IN WHOLE OR IN PART, WITHOUT
WRITTEN CONSENT OF EarthCentric Engineering, Inc.,
IS PROHIBITED.
COPYRIGHT 2021 EarthCentric Engineering, Inc.
SHEET NO.
PRELIMINARY

PIN# 9840-33-9815 & 9840-43-9598
BOX CULVERT
42 LF, 5' TALL
8' WIDE
Q0.50% SLOPE
EMBEDDED 1' BELOW STREAM BED
INVERT IN
C�? STREAM BED
545.11
STREAM BED
BOX CULVERT
PROFILE VIEW
SCALE 1"=5'
1' HIGH CONC.
BAFFLES
13' SPACING 0.C.
INVERT OUT
STREAM BED
544.90
STREAM BED
2.0'
4.0'
2.0'
STREAM BED
ELEVATION
1.0'
0
BAFFLE
BOX CULVERT
CROSS SECTION
(FIRST BAFFLE)
SCALE 1"=2'
1.0'
4.0'
STREAM BED
ELEVATION
1.0'
BAFFLE
4.0'
0.5'
BOX CULVERT
CROSS SECTION
(ADDITIONAL BAFFLES)
SCALE 1"=2'
0
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BOX CULVERT
PLAN VIEW
SCALE 1"=5'
■
MATERIALS''
Concrete Pipe Division
Reinforced Concrete Box Culvert
Inside Of
R. C. Box
Section thru Box Culvert
Section thru Box Joint
Span (S)
Standard Box Culvert Weights (Ibs.) per Foot
3
4
5
6
7
8
9
10
11
12
cp
2
605
905
3
705
1025
1425
1885
2410
4
1155
1575
2060
2600
2800
4880
5700
5
1725
2235
2800
3000
3655
4375
6
2410
3000
3200
3885
4625
5430
6300
7
3200
3400
4105
4875
8
3600
4335
5125
5980
6900
9
4555
5375
10
5625
6530
7500
11
6810
12
8100
Wall (T)
4
5
6
7
8
8
9
10
11
12
Haunch (H)
7
7,8
7,8
7,8,12
8,12
8,12
12
12
12
12
Notes: Box dimensions may vary depending upon equipment availability.
1. Produced to meet ASTM Specifications.
2. Contact a Concrete Pipe Division representative for details not listed on this sheet.
3. Walls, Slabs and Haunches are designed to meet ASTM / AASHTO standards and project specifications. Rinker 013
FLARED END SECTION —INLET
DIAMETER
DIAMETER
z
— D
C
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FLARED END SECTION —OUTLET
DIAMETER
1 —
X
DIAMETER + 1" DIAMETER
SECTION Z—Z
— D
C
r
B
SECTION X—X
PIPE
DIAMETER
WALL
THICKNESS
SLOPE
BC
D
E
WEIGHT
12
2 1/4
3:1
24
49
73
24
730
15
2 1/4
3:1
27
46
73
30
910
18
2 1/2
3:1
27
46
73
36
1 190
21
2 3/4
3:1
36
37
73
42
1370
DIMENSIONS IN INCHES WEIGHT IN POUNDS
X
DIAMETER + 1"
INLET & OUTLET FLARED END SECTIONS
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PHIL KOCH - NCPE #22634
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DESCRIPTION
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04/12/2021
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DATE: DECEMBER 10, 2020
HORIZONTAL SCALE: N/A
VERTICAL SCALE: N/A
PROJECT MANAGER: CPK
DRAWN BY: SCS
PROJECT NO: 19-018
DRAWING NAME: 19-018 DETAILS
THIS DRAWING AND THE DESIGN HEREON ARE
THE PROPERTY OF EarthCentric Engineering, Inc.
THE INFORMATION ON THIS DRAWING IS NOT FOR
USE ON ANY OTHER SITE OR PROJECT. THE
REPRODUCTION OR OTHER USE OF THIS
DRAWING IN WHOLE OR IN PART, WITHOUT
WRITTEN CONSENT OF EarthCentric Engineering, Inc.,
IS PROHIBITED.
COPYRIGHT 2021 EarthCentric Engineering, Inc.
SHEET NO.
PRELIMINARY
P:\19-018\19-018 Drawings\_Working\19-018 Details.dwg, D3.1 SD Details, 4/14/2021 10:20:29 AM