20071057 Ver 2_401 Application_20070907

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:.ulr E~.y BURDETTE LAND CONSULTING, INC.
308D W Millbrook Road, Suite 200 -Raleigh, North Carolina 27609
Telephone [phone] -Fax [phone]
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September 24, 2007
Ms. Annette Lucas
401 Oversight/Exp Review Permitting Unit
North Carolina Division of Water Quality
2321 Crabtree Boulevard, Suite250
Raleigh, North Carolina 27604
RE: Revised PCN Application
Perry Creek Extension
DWQ Project # 07-1057
BLC Project #: 50012
Dear Ms. Lucas:
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We received a 401 Water Quality Certification and Authorization Certificate per the
Neuse River Buffer Protection Rules for the subject project dated July 2, 2007. This
extension of Perry Creek is required to serve the proposed Riverbend Elementary School
scheduled to open fall 2008. The project engineers, Withers & Ravenel, have since
determined that grass-lined bypass swales are required in order to construct the proposed
stormwater BMPs according to the NC Division of Water Quality's Stormwater BMP
Manual. These swales would create additional buffer impacts that were not included in
the original application.
The attached PCN application and exhibits have been revised to reflect these additional
buffer impacts. The additional impacts are allowable without mitigation and do not
change the riparian buffer mitigation previously proposed. The 401 Water Quality
Certification also remains valid as the stream channel impacts have not changed.
Calculations for the new swales and level spreader are attached. A worksheet and
Operations & Maintenance Agreement for the level spreader are also attached.

' Ms. Annette Lucas
September 24, 2007
Page 2 of 2
It is important to note that Mr. Landon Lovelace of Withers &Ravenel spoke to you
about these BMPs and additional buffer impacts. At your suggestion to expedite the
review, we are sending this revised application directly to you. This approval is the last
required for the school to receive its building permit, which is greatly behind schedule.
Due to the urgency, Mr. Gary Morton of the City of Raleigh has agreed to sign off on the
final plans based on your verbal approval of the additional information. You can contact
Mr. Morton via telephone at [phone] or email him at
~ary.morton @ ci.raleigh.nc.us.
Thanks for your help on this project. If you have any questions or require more
information, please do not hesitate to contact me at [phone] or Landon Lovlace of
Withers &Ravenel at [phone].
Sincerely,
BURDETTE LAND CONSULTING, INC.
Jennifer A. Burdette
Environmental Specialist
Attachments
c: Landon Lovelace -Withers &Ravenel

Office Use Only: Form Version March OS
USACE Action ID No. DWQ No. ~ ~ ~ ~ fl 5 ~
(If any particular item is not applicable to this project, please enter "Not Applicable" or "N/A".)
I. Processing
1. Check all of the approval(s) requested for this project:
® Section 404 Permit ® Riparian or Watershed Buffer Rules
^ Section 10 Permit ^ Isolated Wetland Permit from DWQ
® 401 Water Quality Certification ^ Express 401 Water Quality Certification
2. Nationwide, Regional or General Permit Number(s) Requested:
14
3. If this notification is solely a courtesy copy because written approval for the 401 Certification
is not required, check here: ^
4. If payment into the North Carolina Ecosystem Enhancement Program (NCEEP) is proposed
for mitigation of impacts, attach the acceptance letter from NCEEP, complete section VIII,
and check here:
5. If your project is located in any of North Carolina's twenty coastal counties (listed on page
4), and the project is within a North Carolina Division of Coastal Management Area of
Environmental Concern (see the top of page 2 for further details), check h~~.e: ;^ `; ..~ ~ ~..,,
II. Applicant Information ~ A ~ ~~`~
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Owner/Applicant Information
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Name: Wake Technical Community College yd~r~;a:<c~'.; r.:,,r, drrr~~r~g~=,~ ;;~~ a~.r,~cH
Mailing Address: Contact: Wendell B. Goodwin
9101 Fayetteville Road
Raleieh. North Carolina 27603-5696
Telephone Number: 919/866-5148 Fax Number: 919/779-3360
E-mail Address: NA
2. Agent/Consultant Information (A signed and dated copy of the Agent Authorization letter
must be attached if the Agent has signatory authority for the owner/applicant.)
Name: Jennifer A. Burdette
Company Affiliation: Burdette Land Consulting, Inc.
Mailing Address: 308D W Millbrook Road, Suite 200
Raleigh, North Carolina 27609
Telephone Number: 919/841-9977 Fax Number: 919/841-9909
E-mail Address: [e-mail]
Updated 11/1/2005
Page 1 of 9

III. Project Information
Attach a vicinity map clearly showing the location of the property with respect to local
landmarks such as towns, rivers, and roads. Also provide a detailed site plan showing property
boundaries and development plans in relation to surrounding properties. Both the vicinity map
and site plan must include a scale and north arrow. The specific footprints of all buildings,
impervious surfaces, or other facilities must be included. If possible, the maps and plans should
include the appropriate USGS Topographic Quad Map and NRCS Soil Survey with the property
boundaries outlined. Plan drawings, or other maps may be included at the applicant's discretion,
so long as the property is clearly defined. For administrative and distribution purposes, the
USACE requires information to be submitted on sheets no larger than 11 by 17-inch format;
however, DWQ may accept paperwork of any size. DWQ prefers full-size construction
drawings rather than a sequential sheet version of the full-size plans. If full-size plans are
reduced to a small scale such that the final version is illegible, the applicant will be informed that
the project has been placed on hold until decipherable maps are provided.
1. Name of project: Perry Creek Extension Phase I
2. T.I.P. Project Number or State Project Number (NCDOT Only): NA
3. Property Identification Number (Tax PIN):
4. Location
County: Wake Nearest Town: Raleigh
Subdivision name (include phase/lot number): NA
Directions to site (include road numbers/names, landmarks, etc.): The site is located
approximately 3000 feet east of US Hi hway 401 and 1200 feet south of Fox Road's
intersection with US 401, Raleigh, North Carolina. Figure 1 depicts the location of the
property on US Geological Survey (USGS) Raleigh East, NC 7.5-minute cfuadrangle
topographic maps.
5. Site coordinates (For linear projects, such as a road or utility line, attach a sheet that
separately lists the coordinates for each crossing of a distinct waterbody.)
Decimal Degrees (6 digits minimum): 35.8667505 °N 78.5390117 °W
6. Property size (acres)
30
7. Name of nearest receiving body of water: UT to Neuse River
8. River Basin: Neuse
(Note -this must be one of North Carolina's seventeen designated major river basins. The
River Basin map is available at http://h2o.enr.state.nc.us/admin/maps/.)
9. Describe the existing conditions on the site and general land use in the vicinity of the project
at the time of this application: Currently, the site contains hardwood forest and a portion of
Updated 11/1/2005
Page 2 of 9

a sod farm. General land use in the vicinity of the project consists of residential subdivisions
and commercial development.
10. Describe the overall project in detail, including the type of equipment to be used: The
project consists of construction of a portion of the Perry Creek Road extension. Heavy
equipment typical of road construction will be used to complete the project.
11. Explain the purpose of the proposed work: The purpose of the proposed work is to provide
access to the Wake County Public School already under construction at the terminus of the
proposed~ro~ct.
IV. Prior Project History
If jurisdictional determinations and/or permits have been requested and/or obtained for this
project (including all prior phases of the same subdivision) in the past, please explain. Include
the USACE Action ID Number, DWQ Project Number, application date, and date permits and
certifications were issued or withdrawn. Provide photocopies of previously issued permits,
certifications or other useful information. Describe previously approved wetland, stream and
buffer impacts, along with associated mitigation (where applicable). If this is a NCDOT project,
list and describe permits issued for prior segments of the same T.I.P. project, along with
construction schedules. Durin Jg anuary 2006, Burdette Land Consulting, Inc. (BLC) conducted
a delineation and evaluation of surface waters and wetlands present on the property primarily
occupied by the proposed public school. Mr. Monte Matthews of the USACE verified the
delineation and evaluation during a field visit conducted on May 9, 2007 (540/401 Site). On
February 28, 2007, BLC evaluated the area of the proposed road crossing on the Wake Technical
Community College property and found a perennial stream channel without any adjacent
jurisdictional wetlands.
V. Future Project Plans
Are any future permit requests anticipated for this project? If so, describe the anticipated work,
and provide justification for the exclusion of this work from the current application.
Phase I of the Perry Creek Road extension will also serve future expansion of Wake County
Technical College, which is the owner of the property at the location of the impact and the
applicant for the project. The extension of Perry Creek will be continued eventually providing
additional access to the proposed 5401 North development located south of the school site before
continuing under the 540 Beltline. Its alignment through this property was designed to avoid and
minimize impacts to jurisdictional streams and wetlands during the overall site planning_process
for 5401 North given the fixed tie-in points at the existing South Hall Road terminus to the north
and Perry Creek Road's intersection with the 540 Beltline.
Updated 11/1/2005
Page 3 of 9

VI. Proposed Impacts to Waters of the United States/Waters of the State
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
wetlands, open water, and stream channels associated with the project. Each impact must be
listed separately in the tables below (e.g., culvert installation should be listed separately from
riprap dissipater pads). Be sure to indicate if an impact is temporary. All proposed impacts,
permanent and temporary, must be listed, and must be labeled and clearly identifiable on an
accompanying site plan. All wetlands and waters, and all streams (intermittent and perennial)
should be shown on a delineation map, whether or not impacts are proposed to these systems.
Wetland and stream evaluation and delineation forms should be included as appropriate.
Photographs may be included at the applicant's discretion. If this proposed impact is strictly for
wetland or stream mitigation, list and describe the impact in Section VIII below. If additional
space is needed for listing or description, please attach a separate sheet.
1. Provide a written description of the proposed impacts: A road crossingperennial
stream channel is the onlyproposed impact associated with the project. The proposed impact
is shown below and on the attached impact maps.
2. Individually list wetland impacts. Types of impacts include, but are not limited to
mechanized clearing, grading, fill, excavation, flooding, ditching/drainage, etc. For dams,
separately list impacts due to both structure and flooding.
Wetland Impact Type of Wetland Located within Distance to Area of
Site Number Type of Impact (e.g., forested, marsh, 100-year
Floodplain Nearest
Stream Impact
(acres)
(indicate on map) herbaceous, bog, etc.) ( es/no) (linear feet)
NA
Total Wetland Impact (acres) 0
3. List the total acreage (estimated) of all existing wetlands on the property: 0
4. Individually list all intermittent and perennial stream impacts. Be sure to identify temporary
impacts. Stream impacts include, but are not limited to placement of fill or culverts, dam
construction, flooding, relocation, stabilization activities (e.g., cement walls, rip-rap, crib
walls, gabions, etc.), excavation, ditching/straightening, etc. If stream relocation is proposed,
plans and profiles showing the linear footprint for both the original and relocated streams
must be included. To calculate acreage. multiply length X width. then divide by 43,560.
Stream Impact
Perennial or Average Impact Area of
Number Stream Name Type of Impact
Intermittent? Stream Width Length Impact
(indicate on ma) Before Im act (linear feet) (acres)
A UT to Neuse River culvert/rip-rap P 3-4 228 0.02

Total Stream Impact (by length and acreage) 228 0.02
Updated 11/1/2005
Page 4 of 9

5. Individually list all open water impacts (including lakes, ponds, estuaries, sounds, Atlantic
Ocean and any other water of the U.S.). Open water impacts include, but are not limited to
fill, excavation, dredging, flooding, drainage, bulkheads, etc.
Open Water Impact Name of Waterbody Type of Waterbody Area of
Site Number (if applicable) Type of Impact (lake, pond, estuary, sound, bay, Impact
(indicate on ma) ocean, etc.) (acres)
NA

Total Open Water Impact (acres)
6. List the cumulative impact to all Waters of the U.S. resulting from the nroiect:
Stream Impact (acres): 0.02
Wetland Im act (acres): 0
O en Water Impact (acres): 0
Total Impact to Waters of the U.S. (acres) 0.02
Total Stream Impact (linear feet): 228
7. Isolated Waters
Do any isolated waters exist on the property? ^ Yes ®No
Describe all impacts to isolated waters, and include the type of water (wetland or stream) and
the size of the proposed impact (acres or linear feet). Please note that this section only
applies to waters that have specifically been determined to be isolated by the USACE.
8. Pond Creation
If construction of a pond is proposed, associated wetland and stream impacts should be
included above in the wetland and stream impact sections. Also, the proposed pond should
be described here and illustrated on any maps included with this application.
Pond to be created in (check all that apply): ®uplands ^ stream ^ wetlands
Describe the method of construction (e.g., dam/embankment, excavation, installation of
draw-down valve or spillway, etc.): see stormwater mana ement plan
Proposed use or purpose of pond (e.g., livestock watering, irrigation, aesthetic, trout pond,
local stormwater requirement, etc.): see stormwater mana e~plan
Current land use in the vicinity of the pond: see stormwater mana eg ment plan
Size of watershed draining to pond: see sw plan Expected pond surface area: see sw plan
VII. Impact Justification (Avoidance and Minimization)
Specifically describe measures taken to avoid the proposed impacts. It may be useful to provide
information related to site constraints such as topography, building ordinances, accessibility, and
financial viability of the project. The applicant may attach drawings of alternative, lower-impact
site layouts, and explain why these design options were not feasible. Also discuss how impacts
were minimized once the desired site plan was developed. If applicable, discuss construction
techniques to be followed during construction to reduce impacts. The applicant requested that
Updated 11/1/2005
Page 5 of 9

BLC conduct a detailed surface water and wetland delineation and evaluation for the project to
avoid and minimize jurisdictional impacts to the maximum extent practicable. The Wake
County Public School site does not involve any impacts to ,jurisdictional waters. However, this
portion of the Perry Creek Road extension required for access to the school site crosses an
unavoidable stream channel. According the to the project engineers, the location of the proposed
road crossing is dictated by the City of Raleigh design standards, being bound to the north by the
connection to the existing Southall Road, and being bound to the south by the existing boundary
for the Wake County Public School site that is currently under construction. The minimum
radius of 850' and the maximum superelevation rate of 6% was used in order to alit
roadway as nearly perpendicular to the stream as possible while keeping consistency with the
existing roadway. Retaining walls at the upstream and downstream headwall locations have also
been used to minimize impacts to the stream channel.
VIII. Mitigation
DWQ - In accordance with 15A NCAC 2H .0500, mitigation may be required by the NC
Division of Water Quality for projects involving greater than or equal to one acre of impacts to
freshwater wetlands or greater than or equal to 150 linear feet of total impacts to perennial
streams.
USAGE - In accordance with the Final Notice of Issuance and Modification of Nationwide
Permits, published in the Federal Register on January 15, 2002, mitigation will be required when
necessary to ensure that adverse effects to the aquatic environment are minimal. Factors
including size and type of proposed impact and function and relative value of the impacted
aquatic resource will be considered in determining acceptability of appropriate and practicable
mitigation as proposed. Examples of mitigation that may be appropriate and practicable include,
but are not limited to: reducing the size of the project; establishing and maintaining wetland
and/or upland vegetated buffers to protect open waters such as streams; and replacing losses of
aquatic resource functions and values by creating, restoring, enhancing, or preserving similar
functions and values, preferable in the same watershed.
If mitigation is required for this project, a copy of the mitigation plan must be attached in order
for USAGE or DWQ to consider the application complete for processing. Any application
lacking a required mitigation plan or NCEEP concurrence shall be placed on hold as incomplete.
An applicant may also choose to review the current guidelines for stream restoration in DWQ's
Draft Technical Guide for Stream Work in North Carolina, available at
http://h2o.enr.state.nc.us/ncwetlands/strm~ide.html.
1. Provide a brief description of the proposed mitigation plan. The description should provide
as much information as possible, including, but not limited to: site location (attach directions
and/or map, if offsite), affected stream and river basin, type and amount (acreage/linear feet)
of mitigation proposed (restoration, enhancement, creation, or preservation), a plan view,
preservation mechanism (e.g., deed restrictions, conservation easement, etc.), and a
description of the current site conditions and proposed method of construction. Please attach
a separate sheet if more space is needed.
Updated 11/1/2005
Page 6 of 9

BLC believes mitigation is required because the proposed stream channel impact (228
linear feet) exceeds the 150-linear foot threshold for stream channel mitigation. The
ap lips cant proposes to pay the NCEEP to provide 456 linear feet of stream channel miti ag tion
fora 2:1 mitigation ratio. NCEEP's letter a r~ Being to provide the mitigation is attached.
2. Mitigation may also be made by payment into the North Carolina Ecosystem Enhancement
Program (NCEEP). Please note it is the applicant's responsibility to contact the NCEEP at
[phone] to determine availability, and written approval from the NCEEP indicating
that they are will to accept payment for the mitigation must be attached to this form. For
additional information regarding the application process for the NCEEP, check the NCEEP
website at http://h2o.enr.state.nc.us/wrp/index.htm. If use of the NCEEP is proposed, please
check the appropriate box on page five and provide the following information:
Amount of stream mitigation requested (linear feet): 456
Amount of buffer mitigation requested (square feet): 53,913
Amount of Riparian wetland mitigation requested (acres): 0
Amount of Non-riparian wetland mitigation requested (acres): 0
Amount of Coastal wetland mitigation requested (acres): 0
IX. Environmental Documentation (required by DWQ)
1. Does the project involve an expenditure of public (federal/state/local) funds or the use of
public (federal/state) land? Yes ^ No
2. If yes, does the project require preparation of an environmental document pursuant to the
requirements of the National or North Carolina Environmental Policy Act (NEPA/SEPA)?
Note: If you are not sure whether a NEPA/SEPA document is required, call the SEPA
coordinator at [phone] to review current thresholds for environmental documentation.
Yes ^ No ^
3. If yes, has the document review been finalized by the State Clearinghouse? If so, please
attach a copy of the NEPA or SEPA final approval letter. Yes ^ No ^
X. Proposed Impacts on Riparian and Watershed Buffers (required by DWQ)
It is the applicant's (or agent's) responsibility to determine, delineate and map all impacts to
required state and local buffers associated with the project. The applicant must also provide
justification for these impacts in Section VII above. All proposed impacts must be listed herein,
and must be clearly identifiable on the accompanying site plan. All buffers must be shown on a
map, whether or not impacts are proposed to the buffers. Correspondence from the DWQ
Regional Office may be included as appropriate. Photographs may also be included at the
applicant's discretion.
Updated 11/1/2005
Page 7 of 9

1. Will the project impact protected riparian .buffers identified within 15A NCAC 2B .0233
(Neuse), 15A NCAC 2B .0259 (Tar-Pamlico), 15A NCAC 02B .0243 (Catawba) 15A NCAC
2B .0250 (Randleman Rules and Water Supply Buffer Requirements), or other (please
identify )? Yes ® No ^
2. If "yes", identify the square feet and acreage of impact to each zone of the riparian buffers.
If buffer mitigation is required calculate the required amount of mitigation by applying the
buffer multipliers.
Zone* Impact
(s uare feet) Multiplier Required
Miti ation
1 16,542 3 (2 for Catawba) 43,869
2 7,643 1.5 10,044
Total 24,185 53,913
XI.
XII.
* Zone 1 extends out 30 feet perpendicular from the top of the near bank of channel; Zone 2 extends an
additional 20 feet from the edge of Zone 1.
3. If buffer mitigation is required, please discuss what type of mitigation is proposed (i.e.,
Donation of Property, Riparian Buffer Restoration /Enhancement, or Payment into the
Riparian Buffer Restoration Fund). Please attach all appropriate information as identified
within 15A NCAC 2B .0242 or .0244, or .0260. Since the crossing involves greater than
1501inear feet of stream channel and 1/3 acre of riparian buffer, buffer mitigation is required
for Area A. It will be satisfied through payment into the Riparian Buffer Restoration Fund.
NCEEP's mitigation acceptance letter is attached. Riparian buffer impacts at Area B and C
are grassed swales associated with SW BMPs that are allowable without mitigation.
Stormwater (required by DWQ)
Describe impervious acreage (existing and proposed) versus total acreage on the site. Discuss
Stormwater controls proposed in order to protect surface waters and wetlands downstream from
the property. If percent impervious surface exceeds 20°Io, please provide calculations
demonstrating total proposed impervious level. Currently, the site does not contain impervious
acreage. The road proiect is not expected to create greater than 20°Io impervious surface on the
property. A Stormwater mana eg ment plan for the road project prepared by Withers & Ravenel to
ensure its compliance with the Riparian Buffer Rules is attached. It is important to note that this
road extension will serve the Wake County Public School immediately, but will also serve the
5401 North development within the next few months, and Wake Technical Community College
in the future. The Wake County Public School is currently under construction and received an
approval of their Stormwater mana e~plan from the City of Raleigh. The 5401 North
development will also require application for a Nationwide Permit and corresponding 401 Water
Quality Certification including a stormwater mana e~plan.
Sewage Disposal (required by DWQ)
Clearly detail the ultimate treatment methods and disposition (non-discharge or discharge) of
wastewater generated from the proposed project, or available capacity of the subject facility.
Wastewater generated from the proposed project will be disposed of through the City of Raleigh
sanitary sewer system.
Updated 11/1/2005
Page 8 of 9

XIII. Violations (required by DWQ)
Is this site in violation of DWQ Wetland Rules (15A NCAC 2H .0500) or any Buffer Rules?
Yes ^ No
Is this an after-the-fact permit application? Yes ^ No
XIV. Cumulative Impacts (required by DWQ)
Will this project (based on past and reasonably anticipated future impacts) result in additional
development, which could impact nearby downstream water quality? Yes ^ No
If yes, please submit a qualitative or quantitative cumulative impact analysis in accordance with
the most recent North Carolina Division of Water Quality policy posted on our website at
http://h2o.enr.state.nc.us/ncwetlands. If no, please provide a short narrative description: The
Perry Creek Road Extension is not expected to result in additional development. Development
generated by the intersection of the 540 beltline with US Highway 401 has created the demand
for this road to be constructed for the City of Raleigh.
XV. Other Circumstances (Optional):
It is the applicant's responsibility to submit the application sufficiently in advance of desired
construction dates to allow processing time for these permits. However, an applicant may
choose to list constraints associated with construction or sequencing that may impose limits on
work schedules (e.g., draw-down schedules for lakes, dates associated with Endangered and
Threatened Species, accessibility problems, or other issues outside of the applicant's control).
NA

6~
plicant/ gen Signature ~ate~
(Age 'signature is va id only if an authorization letter from the applicant is provided.)
Updated 11/1/2005
Page 9 of 9

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CULVERT CROSS SECTIONS
w~ ~: -~,
NOTE:
MAIN CULVERT BURIED
1' FOR AQUATIC LIFE
PASSAGE.
'"" F'RC7PC~5ED CULVERT ~~""'
(1) 145 LF - 72" RCP
(2) 145 LF - 48" RCP `~-
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BUFFER IMPACT -ZONE 1
~~ BUFFER 1MPACT -ZONE 2
STREAM IMPACT
IMPACT AREA - A
IMPACT AREA AREA LENGTH
LOCATION SF AC
ZONE 1 14,623 0.34 --
ZONE 2 6,696 0.15 --
STREAM 849 0.02 228
GRAPHIC SCALE
so o zs so -oll
1 inch = 50 ft.
CREEK R AD EXTENSION
WITHER8 ~' RAVENEL
PHASE 1 IMPACT AREA - A RNa~NnNS 1 -LANNIR• ~ suRrRroes
UPSTREAM
DOWNSTREAM

Swale ~ ~u~let fratrxr BMP#~7
ProjecC ~~s~ripton
Friction Method
Strlrte For
It~ptft Data
Roughness Gaefficient
Ghanrtel Slope
Lefk Side Slope
Flight Side Slope
Bottom Width
Dkscharge
ReSUIt5
Narinal depth
Flow Area
Wetted Perimeter
Top Width
CrkHcal Depth
Criticat Slope
Vetocity
Vetr)city Head
Specific: Energy
Fronde Number
Flow Type
CaV~ Ift(JUti'QSfa
C3awnstream Depth
t_engEh
Number t7f Steps
GV~ E~utput ©~t~
Upstream pepkh
ProfEe Description
F'rofi{e Headiass
t.}6WlStre~471 Velocity
Upstream Velocity
Normal C7epth
Grit"teal Depth
Channel S[ope
GEitcal Slope
nning Formula
•ntat t:lepth
o.a35
17.111 Qa fttft
3.aa tuft (tiV}
3:aa fUff {H:V}
x,04 ft
14.7a ft'ts
Q.47 ~.
a.1 a ftT
6.Oa Ft
a.84 {#
a.71 ft
a.02340 ftltt
7.02 tt/s
a:77 ft
1,24 ft
2.a7
Q.aLt ft
a.aa ft
a
a.aa ft
t}.aa ft
tnfinity fUs
Infinity itls
03.47 ff
a.71 fE
0.1'1 1 t)a fttft
0:02340 ft/it
Bgr>IEley Systtrn5, IttC, kiORSEatf NtethOdS Sokutton Center FlowNkaater [08.01.t358A0j
9/1912Q0T 1Q:Sf3:42 AM 2T Siemons Com ny tJrive Su-te 2Qtf W Waferiawn, C7' Q6T95 USA +1.2pS-755-1656 Pac~Q 1 of 1

07-1057
DWO Project'~No.
BMP #2
DIVISION OF (WATER QUALITY -LEVEL SPREADER WORKSHEET (112007)
I. PROJECT INFORMATION (please
Project Name : Perry Creek Rc
Contact Person: Landon M. Love
Level Spreader ID: LS 300
PE
Phone Number: (919 t 469-3340
Level Spreader Length
Drainage Area
Impervious Area
Forebay Area
Maximum Filter Strip/Buffer Slope
grass
Max. Discharge from 1"/Hr Storm
Max. Discharge to Level Spreader
Filter Strip/ Zone 2 Buffer Vegetation
Pre-treatment or Bypass Method Used
II. REQUIRED ITEMS CHECKLIST
the following information):
nsion -Phase I
3 ft. (perpendicular to flow)
2. 4 cfs
2. 4 cfs
hi k Ground Cover
3. 1 ac. (on-site and off-site drainage to the level spreader)
2. 4 ac. (on-site and off-site drainage to the level spreader)
7 6 cu ft. (0.2% of the contributing impervious surface area)
5. % (6% for forested, leaf littler cover, 8% for thick ground cover
Swale
(thick ground cover or grass; canopied forest with leaf litter
groundcover)
Inifial in the space provided to indicate th following design requirements have been met and supporting documentation is attached. !f a
requirement has not been met, attach an xpianation of why. At a minimum, a complete stormwater management plan submittal includes
a worksheet for each BMP, design calc lations, plans and specifications showing all BMPs and outlet structure details, a detailed
drainage plan and a fully executed operaton and maintenance agreement. An incomplete submittal package will result in a request for
additional information and will substantial) delay final review and approval of the project.
Applicants Initials
LL Project Site was vi
4/12/07 Date of the Site vi:
LL Level spreader is
litter for 50-foot bu
NA Pre-Formed Scour
LL No structures are b
Design Alternative (if any) and Bypass
LL Bypass
LL Alternative design
LL Discharge to level
discharge.
LL No structures are 4
LL Plan details for the
LL The operation and
LL The operation and
ed prior to designing level spreader.
. PLEASE ATTACH TIME-DATED DIGITAL PHOTO OF EXISTING BUFFER CONDITIONS.
least 13 ft. per cfs for thick ground cover or grass or 65 ft per cfs in canopied forest with leaf
~r; 50 ft per cfs for 100-foot buffer, or 40 ft. per cfs for 150-foot buffer.
oles are on flat slopes only.
ated in protected buffers (must meet no practical alternatives criteria).
od used:
method is specified and plan details and calculations are provided.
is specified and plan details and calculations are provided.
and subsequent filter strip is hydraulically and spatially separate from the bypass
ed in protected buffers.
pass and outlets are provided.
ntenance agreement includes annual erosion and vegetation repair.
ntenance agreement signed and notarized by the responsible party is provided,

r ~
WITHERS O~ R 'V E N E L

ENGINEERS 1 PLANNERS ~URVEYORS Project Project No.
-P~~~ C~_~-~~ ~~~~ ~.~~" -o~.o-~o t o 2. o
SUt)jP,Ct

~y~.~~.__~~rc~_~• ~~ ~f.~ ~ ~.~ ~4,.1
~ ~~ ~'--
II
Date
By _-_m___
Sheet No.
4 ~I4 ~ o ~ L l_ I
BM P #2
c 7~
r_l P C. I TT !a.. 2. tJ U ~ ~ C~ Q '
~i~c5r FL ~SH F~,.o4J l,v~.~rJ~, f+~NR ;,JT;~.,v~tr~~

U5(_ ~ ~ . 4' l_F I 1 e> r r° ~i Q , ~ U ~Je R <S OUT-~_ f:.`T" 7~ f, f: Uc l.. ~`' Pr; Fi-r~ U F F

6YPa~,.s FLo T-o s~,;t~?-l,tT. Vtr} WFfrZ ~t'k=r~En1c,
~-~ ~ Y F +~}S S - ~~-rw ~ "' ~ ~ - I f3. 7 ~- ' ~ , '~ ~} -- ! (, . D iU c, F S
t.` l.tv J Ya 7 '1 ;;? a#=° ~rj F.; _t 1~; c:ri•'f',1e1 ! r..~ (-~
lZ~~ r~r~- rr`,,1 t- ~rP~ 1:.~t~~. ~ ~t~t, t-k~.ttr~, -
'7_73, u..' f,u~ ~ ~7, l~j ~ - "_?~ ~`~
~~.-,-' ~f..ti~Z Ca~~rJt~at„ rn,t `~,oh._ yr 17~x ~ 2;?4.4d.
5iz~ t3Yr~,~s. , :~wr<t~.r
f`~1" F~~~ '7°~ ~~c•R.~•'il+fa",t` t--'of: i~y~~'.~`:,.:~ jWr4L[:. 300
`` ~
1~~~1E~ ~JF'~r'RCFh r
LF_1JH'1('f (~Y~~Fr~ i)hI~G",ull?E-l.~rfV~,~j

U 5 f l F T `~ G f r
S .~5, Lv "-~ ~ ~..
or.~_13~1 Y u~.vw~~ - (, O, oZ K ~f YL1(~, ~`a rZ(Lra~
~ !:. ~ M

BM P #2
IBvpass Channel @ SB300
Project Description
Friction Method M nning Formula
Solve For N rrnal Depth
Input Data
Roughness Coefficient 0.035
Channel Slope 0.05450 ft/ft
Left Side Slope 3.00 ft/ft (H:V}
Right Side Slope 3.00 ft/ft (H:V)
Bottom Width 3.00 ft
Discharge 16A0 ft'/s
Results
Normal Depth 0.60 ft
Flow Area 2.87 f{Z
Wetted Perimeter 6.78 ft
Top Width 6.59 ft
Critical Depth 0.75 ft
Critical Slope 0.02313 ft/ft
Velocity 5.58 ft/s
Velocity Head 0.48 ft
Specific Energy 1.08 ft
Froude Number 1.49
Flow Type Su ercritical
GV~ Input Data
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
~GVF Output Date
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0,00 ft
Downstream Velocity Infinity ft/s
Upstream Velocity Infinity ft/s
Normal Depth 0.60 #}
Critical Depth 0.75 ft
Channel Slope 0,05450 ftlft
Critica! Slope 0.02313 ft/ft
Ben ley Systems, Inc. Haestad Methods Solution Center FlowMaster [08.01.058.00]
9/1912007 9:41:52 AM 27 Siemons Comp ny Drive Suite 200 W Watertown, CT 06795 USA [phone] Page 1 of 1

~~ BPJI P #2
Outlet @ SB300
Pf4jE?Gt ~~SCCi[7tlOft`
Fri.^.ton Metitocf M nning Formula
Salve For F II Flow Diameter
input Rata
Roughness Coefficient O.Of2
Channel Slope .0.017500 fGt~
Normal Clepfh 1.00 (~
Diamete€ 1.0i) ft
Discharge 2,74 ft'Is
R{'SUitS
Diameter 1.00 ft
Narmat Depth 1.00 ft
Flaw Area 0.79 ftz
Wetted Perimeter 3.15 ft
Top Width 0.00 ft
Critical Depth 0.7'1 ft
Percent Full 100,0
Critical Slope 0.00691 fttft
Velocity 3.48 ft/s
Velocity Mead 0.19 ft
Specific Energy t.19 ft
Froude Number 0.00
Maximum Discharge 2.95 ft'/s
Discharge Full 2.74 ft'/s
Slope Full 0,00500 ft/ft
Flow Type Su Critical
:GVF Input=D~ta:
Downstream Depth 0.00 ft
Length 0.00 ft
Number Of Steps 0
GVF C~t,tput Da><a_
Upstream Depth 0.00 ft
Profile Description
Profile Headloss 0.00. ft
Average End Depth Over Rise 0.00 "fa
Normal Depth Over Rise 100.00 °fp
Ben ley Systems, Inc. Haestad Methods Solution Center FlowMaster [08.01.058.00]
4119!2007 7:12:31 PM 27 Siemon s Comp ny Drlve Suite 200 W Watertown, CT 06795 USA +1-203-T55-1666 Page 1 of 2

dl1912007 7;12;31 PIVf
BM P #2
Ben ley Systems, Inc. Naestad Methods Solution Center FlowMaster [08.01.058.OOj
27 Siemons Comp ny Drlve Sutte 200 W Watertown, CT 06795 USA +1,203-755-1686 Page 2 of 2

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BMP #2 .;,,•

A ~
LEVEL S
For
The level spreader is defined as an
Maintenance activities shall be perfo.
1. After construction and until vE
every rainfall. Thereafter, lev
frequently during the fall seas
a. Accumulated sedimer
b. Inspect level spreader
concentrated flows do
c. A level elevation shall
Repair or replace the
d. Mow vegetative cover
level spreader surfacE
e. Repair eroded areas
2. The contractor should avoid t
the structure. If the measure
3. Inspect and repair the collecti
to maintain proper functioninc
I acknowledge and agree by my sig
procedures listed above. !agree to
the system ar responsible party.
Print name: Carolyn E. Martin
QPERATION AND MAINTENANCE AGREEMENT
y Creek Road Extension -Phase
gated, level threshold, designed to diffuse starmwater runoff.
~ned as follows:
~etation has been established, level spreaders}shall be inspected after
:I spreader{s) shall be inspected of least every month and mare
m and after heavy rainfall events:
leaves, and trash shall be removed, and repairs made if required.
s) for evidence of scour, undercutting, settlement of the structure, and
vnhill from the level spreader(s).
~e maintained across the entire flow-spreading structure at ail times.
~vel spreader if it is damaged.
o a height of six (6} inches and prune plants if they cover over half of the
! replacelreplant dead or damaged vegetation.
placement of any material on and prevent construction traffic across
damaged by construction traffic, it shall be repaired immediately.
system (e.g., catch basins, pipes, swales, riprap} four (4} times a year
below that I am responsible for the pertormance of the maintenance
OWQ of any problems with the system or prior to any changes to
Title: V.P., 5401 North LLC
Address: 8630 Bankers Avenue, Baton f~2ouge, LA 70808
Phone: [phone]
Signature:,
Note:. The legally responsible party ~hauld nat be a homeowners association unless mare than 50% of the
lots have been sold and a res dent of the subdivision has been named the president.
~~;1• I <'
I,~ {
f~ ~ ¢. ,
personally appeared before me this
execution of the forgoing wet [wetla
official seal,
~~~~1~i11 a 1111/t
~- , cs~
r•t •~~ ~ k NYY ~~ ~~ 0 r
J~ r~X. T •I/
.^i ~, q w
G. i ~
SEAL
a Notary Puk~lic for the State of ~} ~'G~< .~r ~'~ c~i,N ,
io hereby certify that ~~ ~_ ` i ; ~, ~~ , ~ ~ 4r.-~;~~ ~ -,..`
~,', .
~ f t- ~' , r .~ .,:
day of --~~~-, ; ." ;%~~.:. ~'~- ~ ,and acknowledge the due
Ij detention basin maintenance requirements. Witness my hand and
/ /
6~ L". v
,f
My commission expires ~ ~~ -~' i ~ ~` ~ ~ ~"~ ~ ~-`'
Fade 1 o~t 1