20211396 Ver 1_Modification Request_20210920 (3)

Staff Review
Does this application have all the attachments needed to accept it into the review process?*
r Yes r No
ID#*
20211396
Version* 1
Is this project a public transportation project?* r Yes
r No
Reviewer List:* Colleen Cohn:eads\cmcohn
Select Reviewing Office:* Raleigh Regional Office - [phone]
Does this project require a request for payment to be sent?*
r
Yes
r
No
How much is r $240.00
owed? * r $570.00

Project Submittal Form
Please note: fields marked with a red asterisk below are required. You will not be able to submit the form until all
mandatory questions are answered.
Project Type: * r
For the Record Only (Courtesy Copy)
r
New Project
r
Modification/New Project with Existing ID
r
More Information Response
r
Other Agency Comments
r
Pre -Application Submittal
r
Re-Issuance\Renewal Request
r
Stream or Buffer Appeal
Pre -Filing Meeting Information
Before submitting this form please ensure you have submitted the Pre -Filing Meeting Request Form as we will not
be able to accept your application without this important first step. The Pre -Filing Meeting Request Form is used in
accordance with 40 C.F.R. Section 121.4(a) "At least 30 days prior to submitting a certification request, the project
proponent shall request a pre -filing meeting with the certifying agency" and in accordance with 40 C.F.R. Section
121.5(b)(7), and (c)(5) all certification requests shall include documentation that a pre -filing meeting request was
submitted to the certifying authority at least 30 days prior to submitting the certification request. Click here to read
more information on when this form is needed prior to application submission or here to view the form.
Attach documentation of Pre -Filing Meeting Request here:
2021.08.16_DWR Pre -Filing Meeting Request Form.pdf 49.1KB
Date for Meeting Request 8/16/2021
I D#
Project Contact Information
Name: Matt Michel
Who is subrritting the inforrration?
Email Address: [e-mail]
Project Information
Existing ID #:
00000000
20170001(no dashes)
Project Name: Washington Elementary School
Is this a public transportation project?
r Yes
r No
Version
Existing Version:
0
1
Is the project located within a NC DCM Area of Environmental Concern (AEC)?
r Yes r No r Unknown
County (ies)

Wake
Please upload all files that need to be submited.
Oick the upload button or drag and drop files here to attach document
2021.08.16_DWR Pre -Filing Meeting Request
49.1 KB
Form.pdf
2021.09.15_PCN Submitted Form.pdf 141.34KB
2021.09.09_Cover Letter and Appendices.pdf 15.08MB
Only pdf or krm files are accepted.
Describe the attachments
or comments:
Sign and Submit
W By checking the box and signing box below, I certify that:
■ I, the project proponent, hereby certifies that all information contained herein is true, accurate, and complete to
the best of my knowledge and belief.
■ I, the project proponent, hereby requests that the certifying authority review and take action on this CWA 401
certification request within the applicable reasonable period of time.
■ I agree that submission of this online form is a "transaction" subject to Chapter 66, Article 40 of the NC General
Statutes (the "Uniform Electronic Transactions Act');
■ I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General
Statutes (the "Uniform Electronic Transactions Act');
■ 1 understand that an electronic signature has the same legal effect and can be enforced in the same way as a
written signature; AND
■ I intend to electronically sign and submit the online form.
Signature:
Submittal Date: Is filled in automatically.

5410 Trinity Road P 919.866.4951
T I M M O N S GROUP Suite 102 IFAwtim 9.5663
Raleigh, NC 27607 wuwvtimmons.com
September 15, 2021
Lyle Phillips
U.S. Army Corps of Engineers — Wilmington District
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Rick Trone
401 & Buffer Permitting Branch
NCDEQ — Division of Water Resources
3800 Barrett Drive
Raleigh, NC 27609
Re: Electronic Pre -Construction Notification Attachments
Washington Elementary School
Raleigh, Wake County,
North Carolina
Project No.: 46651
Dear Mr. Phillips and Mr. Trone,
On behalf of Gurel Architects, we are providing additional attachments and information to aid in
the review of the electronic Pre -Construction Notification of the Washington Elementary School
site, an approximately 8.40-acre site located at 1000 Fayetteville Street in Raleigh, North
Carolina, within Wake County (the Site).
Please review the below attachments and contact Matt Michel at [phone] or
matt.michel(cDtimmons.com if additional information is required.
Sincerely,
Timmons Group
Kate Hefner, WPIT
Environmental Technician
Matt Michel, PWS, PhD
Senior Environmental Scientist
ENGINEERING I DESIGN I TECHNOLOGY

Enclosures
ATTACHMENTS
Appendix A Agent Authorizations
Appendix B Vicinity Map, NRCS Soil Map, and Wetlands and Waters Delineation Map
Appendix C Preliminary Jurisdictional Determination Informal Approval and DWR Buffer
Determination Informal Confirmation
Appendix D Environmental Impacts Set
Appendix E T&E Species Information — IPaC Report and NCNHP Report
Appendix F SHPO Map and List
Appendix G Flood Study Map

DWR
Division of Water Resources
Pre -Construction Notification (PCN) Form
For Nationwide Permits and Regional General Permits
(along with corresponding Water Quality Certifications)
June 1, 2021 Ver 4.1
Please note: fields marked with a red asterisk below are required. You will not be able to submit the form until all mandatory questions are answered.
Also, if at any point you wish to print a copy of the E-PCN, all you need to do is right -click on the document and you can print a copy of the form.
Below is a link to the online help file.
https://edoes. deq. n e.gov/WaterResou rces/0/ed oc/624704/PCN % 20 Help / 20F i le / 202018-1-30. pdf
A. Processing Information
County (or Counties) where the project is located:*
Wake
Is this a NCDMS Project*
r Yes C No
Click Yes, only if NCDlvS is the applicant a co -applicant.
Is this project a public transportation project?
O Yes F No
This is arty publicly funded by m ricipal,state a federal funds road, rail, airport transpafatm project.
1a. Type(s) of approval sought from the Corps:*
Section 404 Permit (wetlands, streams and waters, Clean Water Act)
❑ Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
Has this PCN previously been submitted?*
O Yes
O No
1 b. What type(s) of permit(s) do you wish to seek authorization?*
IJ Nationwide Permit (NWP)
r Regional General Permit (RGP)
r Standard (IP)
1c. Has the NWP or GP number been verified bythe Corps?*
r Yes F No
Nationwide Permit (NWP) Number: 03 - Maintenance
Nationwide Permit (NWP) Number: 13 - Bank Stabilization
NWP Numbers (for multiple NWPS):
List all NJVnurbers ycu are applying fa not cn the drop dawn list.
1d. Type(s) of approval sought from the DWR:*
check all that apply
401 Water Quality Certification - Regular r 401 Water Quality Certification - Express
r Non-404 Jurisdictional General Permit r Riparian Buffer Authorization
r Individual 401 Water Quality Certification
Pre -Filing Meeting Information
Before submitting this form please ensure you have submitted the Pre -Filing Meeting Request Form as we will not be able to accept your application without this important first step. The Pre -Filing
Meeting Request Form is used in accordance with 40 C.F.R. Section 121.4(a) "At least 30 days prior to submitting a certification request, the project proponent shall request a pre -filing meeting with the
certifying agency" and in accordance with 40 C.F.R. Section 121.5(b)(7), and (c)(5) all certification requests shall include documentation that a pre -filing meeting request was submitted to the certifying
authority at least 30 days prior to submitting the certification request. Click here to read more information on when this form is needed prior to application submission or here to viewthe form.
Is this a courtesy copy notification?
r Yes E No

ID# Version
Pre -fling Meeting or Request Date
8/16/2021
Attach documentation of Pre -Filing Meeting Request here:*
Cickthe upload button or drag and drop files here to attach dccurrent
2021.08.16_DWR Pre -Filing Meeting Request Form.pdf
File type crust be FLF
1e. Is this notification sole lyfor the record because written approval is not required?
.............................................. .................... ....................
*
For the record onlyfor DWR401 Certification: r Yes C•- No
For the record onlyfor Corps Permit: r Yes 6' No
1f. Is this an after -the -fact permit application?*
r Yes E No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
If so, attach the acceptance letter from ratigadon bank or in -lieu fee program
f Yes r No
Acceptance Letter Attachment
Cickthe upload button or drag and drop files here to attach dccurrent
FiLEiYFE MJST BE FDF
1 h. Is the project located in any of NC's twenty coastal counties?*
f Yes r- No
49.1 KB
1j. Is the project located in a designated trout watershed?*
r Yes F No
Link to trout information: http://www.saw.usace.army.mil/Missions/Regulatory-Permit-Program/Agency-Coordination/Trout.aspx
B. Applicant Information V
la. Who is the Primary Contact?*
Matt Michel
1c. Primary Contact Phone:*
1b. Pri mary Contact Email:*
(xxx)xxx-xxxx
[e-mail]
[phone]
1d. Who is applying for the permit?
r- Owner
Applicant (other than owner)
(Check all that apply)
le. Is there an Agent/Consultant for this project?*
(-- Yes C No
2. Owner Information
2a. Name(s) on recorded deed:*
Wake County Board of Education
2b. Deed book and page no.:
Book: 006387, Page: 00087
2c. Contact Person:
(fa Corporations)
John Beavin
2d. Address*
Sheet Address
111 Corning Road
Address Line 2
Suite 190
Qty
State / Aovince / Pegicn
Cary
NC
Postal / Zp Code
Country
27518
USA
2e. Telephone Number:*

(xxx)xxx-xxxx
[phone]
2f. Fax Number:
(xxx)xxx-xxxx
2g. Email Address:*
[e-mail]
3. Applicant Information (if different from owner)
3a. Name:*
Mete Gurel
3b. Business Name:
(d applicable)
Gurel Architecture
3c. Address*
Street Address
1145 Executive Circle
Address Line 2
#B
Oty
Cary
Fbstal / Zp Code
27511
3d. Telephone Number:*
[phone]
(xxx)xxx-xxxx
3f. Email Address:*
s.n)[e-mail]
4. Agent/Consultant (if applicable)
4a. Name:*
Matt Michel
4b. Business Name:
(d applicable)
4c. Address*
Street Address
428 Eastwood Road
Address Line 2
Oty
Wilmington
Fbstal / Zp Code
28403
4d. Telephone Number:*
[phone]
(xxx)xxx-xxxx
4f. Email Address:*
[e-mail]
State / Aovince / Regim
NC
Country
USA
3e. Fax Number:
(xxx)xxx-xxxx
State / Aovince / Regim
NC
Country
USA
4e. Fax Number:
(xxx)xxx-xxxx
C. Project Information and Prior Project History v
1. Project Information l^J
1a. Name of project:*
Washington Elementary School
1b. Subdivision name:
(d appropriate)
1c. Nearest municipality / town:
*
Raleigh
2. Project Identification

2a. Property Identification Number:
2b. Property size:
(tax RN a parcel ID)
(in acres)
1703545365
8.40
2c. Project Address
Street Address
1000 Fayetteville Street
Address Line 2
aty
State / Aovince / Regim
Raleigh
NC
Postal / Zp Code
Country
27601
USA
2d. Site coordinates in decimal degrees
Please collect site coordinates in decimal degrees. Use between 4-6 digits (unless you are using a survey -grade GPS device) after the decimal place as appropriate, based on howthe location was
determined. (For example, most mobile phones with GPS provide locational precision in decimal degrees to map coordinates to 5 or 6 digits after the decimal place.)
Latitude:* Longitude:*
35.767110-78.643899
ex: 34.208504-77.796371
3. Surface Waters
3a. Name of the nearest body of water to proposed project:*
Rocky Branch
3b. Water Resources Classification of nearest receiving water:*
C;NSW
Surface Water Lookup
3c. What river basin(s) is your project located in?*
Neuse
3d. Please provide the 12-digit HUC in which the project is located.*
030202011101
River Basin Lookup
4. Project Description and History
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:*
The Site encompasses approximately 8.40 acres and is located in Raleigh, North Carolina within Wake County (See Figure 1. Vicinity Map). The Site is bound by Martin Luther King Jr
Boulevard and residential and commercial development to the north, Fayetteville Street and residential development to the east, Fayetteville Street, Rocky Branch Greenway Trail, and
Mt. Hope Cemetery to the south, and mixed hardwood forest and McDowell Street to the west. The Site is located within the Piedmont Physiographic Province. The Site is occupied by
Washington Elementary School, maintained grass, and mixed hardwood forests. In addition, two stream and no wetland features were found within the Site.
The Site is located within the Neuse River Basin (HUC 030202011101). Surface water on -Site drains generally southwest to an unnamed tributary and eventually into Rocky Branch.
The majority of the Site is located within Zone AE of a FEMA 100-year floodplain with base flood elevations ranging from 242 to 244 feet above mean sea level according to FEMA FIRM
Panel #3720170300J (effective 5/2/2006). The portion of the site along Rocky Branch is located within the FEMA regulatory floodway.
A delineation of the Site was completed by Timmons Group on 9/16/2020. A site visit was conducted with Lyle Phillips (USACE) on 11/18/2020 and an informal confirmation was
provided via email that same day. Joshua Brigham (NC DWR) did not attend the site visit, but sent an informal buffer determination approval on 11/30/2020 via email.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past? *
C Yes [ No !_' Unknown
4f. List the total estimated acreage of all existing wetlands on the property:
4g. List the total estimated linear feet of all existing streams on the property:
(intermittent and perennial)
1,831
4h. Explain the purpose of the proposed project:*
The purpose of the project is to replace a culvert located in the easternmost stream on -Site (Feature B on the Delineation Map). The current culvert is failing and due to safety
concerns from Washington Elementary School, the culvert needs to be replaced.
4i. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
The proposed culvert replacement project is a single -phased project that is located at 1000 Fayetteville Street in Raleigh, North Carolina within Wake County. The existing culverts
consist of one 25' long 60" RCP with two 25' long 24" RCPs on either side. This culvert will be replaced with three 16' long RCPs: 1 60" diameter RCP and 2 36" diameter RCPs on
either side. Bank stabilization and a plunge pool are also proposed.
All work will be conducted in accordance with local, state, and federal regulations. Traditional equipment will be used consisting of front-end loaders, bulldozers, paving equipment,
graders, and earth movers. SCMs are required and will be used.
5. Jurisdictional Determinations

5a. Have the wetlands or streams been delineated on the property or proposed impact areas?*
6 Yes r No r Unknown
Comments:
Delineated on 09/16/2020 by Timmons Group
5b. If the Corps made a jurisdictional determination, what type of determination was made?*
r- Preliminary c Approved c- Not Verified r Unknown r N/A
Corps AID Number:
Ecarrple: SAW-2017-99999
SAW-2020-01767
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known): Kate Hefner and Morgan Gilbert
Agency/Consultant Company: Timmons Group
Other:
6. Future Project Plans
6a. Is this a phased project?*
r' Yes F No
Are any other NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed project or related activity? This
includes other separate and distant crossing for linear projects that require Department of the Army authorization but don't require pre -construction notification.
No other NWP(s), regional general permit(s), or individual permit(s) are intended to be used. All project impacts are being accounted for in this permit application.
D. Proposed Impacts Inventory
1. Impacts Summary
la. Where are the impacts associated with your project? (check all that apply):
r- Wetlands I7 Streams -tributaries W Buffers
I` Open Waters r Pond Construction
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this question for all stream sites impacted.
"S." will be used in the table below to represent the word "stream".
3a. Reason for impact*(')
3b.lmpact type *
3c. Type of impact*
3d. S. name*
3e. Stream Type*
3f. Type of
3g. S. width *
3h. Impact
M
Jurisdiction*
length*
S1
New Culvert
Permanent
Culvert
B
Perennial
Both
15
16
Avaage (feet)
(linear feet)
S2
Stabilization 7
Permanent
Bank Stabilization
B
Perennial
Both
15
71
Average (feet)
(linear feet)
S3
Stabilization 7
Tem orar
p Y
Bank Stabilization
B
Perennial
Both
15
62
Average (feet)
(linear feet)
S4
Embedded Stone 7
Permanent
Stabilization
B7
Perennial
Both
15
14
Average (feet)
(linear feet)
S5
Plunge Pool
9
Permanent777]
Stabilization
B _7
tt�77771
Both
15
22
Average (feet)
(linear feet)
** All Perennial or Intermittent streams must be verified by DWR or delegated local government.
3i. Total jurisdictional ditch impact in square feet:
0
3i. Total permanent stream impacts:
123
3i. Total temporary stream impacts:
62
3i. Total stream and ditch impacts:
185
3j. Comments:

The new culvert will consist of one 60" RCP and 2 36" RCPs on either side. These pipes will be 16 linear feet. Riprap is proposed to be embedded in
the stream bed on the upstream side of the new pipes. A plunge pool is proposed to be installed in the downstream side of the new pipes. These two
impacts are permanent (no loss), since the riprap will be keyed into the streambed.
Permanent bank stabilization is also proposed using riprap. In total, about 71 linear feet of permanent bank stabilization is proposed. Temporary bank
repairs for a total of 62 linear feet is also proposed.
6. Buffer Impacts (for DWR)
If project will impact a protected riparian buffer, then complete the chart below. Individually list all buffer impacts below.
6a. Project is in which protect basin(s)? *
Check all that apply.
rJ Neuse
r Catawba
r Goose Creek
r Other
r Tar -Pamlico
r Randleman
r Jordan Lake
6b. Impact Type*(?)
Culvert installation
6c. Per or Temp*(?)
P
6d. Stream name* 6e. Buffer mitigation required?* 6f. Zone 1 impact* 6g. Zone 2 impact*
B No 570 0
(square feet) (square feet)
Construction access
T
B
No
7,148
(square feet)
958
(square feet)
6h. Total buffer impacts:
Zone 1 Zone 2
Total Temporary impacts: 7,148.00 958.00
Zone 1 Zone 2
Total Permanent impacts: 570.00 0.00
Zone 1 Zone 2
Total combined buffer impacts: 7,718.00 958.00
6i. Comments:
The permanent impact is due to the fill required to be placed on top of the newly installed culvert.
The temporary impacts are due to construction access and stream improvements on both sides of the stream. The stream is located in a maintained
lawn and will be restored with maintained lawn.
E. Impact Justification and Mitigation
1. Avoidance and Minimization
la. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:*
Impacts to jurisdictional features have been avoided and minimized to the mapmum extent practicable by incorporating resourceful site planning,
including utilization of the wetland/stream delineation to adjust the layout and plans to avoid and minimize impacts. The impacts proposed are
necessary in order for the project's goals to be realized. Further, the crossing is to be installed at a previously disturbed location to replace a failed
culvert with a culvert of an adequate size and construction.
This project will address a failing and broken culvert crossing and will ultimately improve water quality by reducing the amount of active erosion. The
project will be limited to the affected area only and the limits of disturbance have been minimized to only the area needed to complete the repairs.
Impacts to the stream buffer will be minimized by accessing the site through a narrow corridor and protecting as much existing vegetation as possible.
In addition, the replacement of the existing culvert with a shorter culvert will add approximately 9 linear feet of streambed.
1 b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:*
Proper sedimentation and erosion control methods will be utilized during all phases of construction and installation as described in accordance with
the requirements of the North Carolina Department of Environment and Natural Resources: Erosion Control Planning and Design Manual (May 2013)
and local codes. All work will take place during dry conditions and can be facilitated from high, non -jurisdictional, stable ground. The contractor shall
install silt fence, inlet protection, sediment traps, division ditches, temporary coffer dams, tree protection, and clearing only as necessary to install
devices.
Pumping of normal stream flowwill be maintained and pumped around the site during construction activities. Bank stabilization, covering the slope with
riparian seed and coir matting, erosional control matting will occur daily upon completion of bank grading.
Measures will be taken to prevent oil, tar, trash, debris, and other pollutants from entering adjacent jurisdictional features. Any excess excavated
materials not utilized as back fill will be placed and contained within upland areas and permanently stabilized to prevent erosion into adjacent
jurisdictional features. Therefore, stockpiling of excavated material within jurisdictional waters of the U.S. will be strictly prohibited as part of the
construction of this project. All project construction activities initiated within jurisdictional waters of the U.S. will be carried to completion in an
expeditious manner to minimize the period of disturbance within jurisdictional waters.

2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State?
r Yes r• No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
Permanent impacts to streambed are below mitigation thresholds.
The culvert is necessary to provide pedestrian access to a playground and recreational field. With the removal of the existing culvert, no built upon area will be added, thus permanent
buffer impacts to Zone 1 are Deemed Allowable. The temporary buffer impacts will be restored after construction and are also Deemed Allowable.
NC Stream Temperature Classification Maps can be found under the Mitigation Concepts tab on the Wilmington District's RIBITS website.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
*** Recent changes to the stormwater rules have required updates to this section .***
1. Diffuse Flow Plan
la. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
C Yes r No
1 b. All buffer impacts and high ground impacts require diffuse flow or other form of stormwater treatment. If the project is subject to a state implemented riparian buffer protection
program, include a plan that fully documents how diffuse flowwill be maintained.
All Stormwater Control Measures (SCM)s must be designed in accordance with the NC Stormwater Design Manual. Associated supplement forms and other documentation shall be
provided.
What type of SCM are you providing?
r" Level Spreader
r" Vegetated Conveyance (lower SHWT)
r" Wetland Swale (higher SHWT)
r" Other SCM that removes minimum30% nitrogen
rJ Proposed project will not create concentrated stormwater flowthrough the buffer
(check all that apply)
For a list of options to meet the diffuse flow requirements, click here.
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
r Yes G No
2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)? *
6Yes 0No
To look up lowdensity requirement click here 15A NCAC 02H .1003(2).
Comments:
No additional development or impervious is planned for this project. it is solely a culvert replacement and stream stabilization project.
G. Supplementary Information
1. Environmental Documentation
1a. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land? *
(-- Yes c- No
1 b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State (North Carolina)
Environmental Policy Act (NEPA/SEPA)?*
r Yes E No
Comments:*
The project will take place on property owned by Wake County Schools. To our knowledge, the funding for this project does not come from federal or
state sources or any other sources which would require an environmental document meeting the requirements of the NEPA or SEPA.
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15A NCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)? *
r Yes (-- No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in additional development, which could impact nearby downstream water quality?*

C Yes O No
3b. If you answered "no," provide a short narrative description.
The proposed project is single and complete and is not anticipated to result in additional impacts.
4. Sewage Disposal (DWR Requirement)
4a.Issewage disposal required by DWR for this project?*
Yes No - N/A
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
(-- Yes r No
5b. Have you checked with the USFWS concerning Endangered Species Act impacts?*
r Yes r No
5c. If yes, indicate the USFWS Field Office you have contacted.
Raleigh
5d. Is another Federal agency involved?*
C Yes No
5e. Is this a DOT project located within Division's 1-8?*
C Yes r No
5f. Will you cut anytrees in order to conduct the work in waters of the U.S.?*
r Yes r No
5g. Does this project involve bridge maintenance or removal?*
O Yes O No
Link to the NLEB SLOPES document: http://saw-reg.usace.army.mil/NLEB/1-1,0-17-signed_NLEB-SLOPESRapps.pdf
5h. Does this project involve the construction/installation of a wind turbine(s)?'*
r' Yes r- No
C Unknown
5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.? *
C Yes r No
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?*
A USFWS IPaC Reportand NC Natural Heritage Program (NHP) Database Reportwere utilized for reviewof potential protected species in the vicinity.
The USFWS IPaC search for the proposed project's site (Consultation Code 04EN2000-2021-SLI-1892, Event Code 04EN2000-2021-E-03978)
identified four federally listed endangered species as potentially occurring in the vicinity of the project site: red -cockaded woodpecker (Picoides
borealis), Carolina medtom (Noturus furiosus), dwarf wedgemussel (Alasmidonta heterodon), and Michaux!s sumac (Rhus michauxii). Additionally, the
USFWS IPaC report identified one threatened, the Neuse river waterdog (Necturus lewisi) and one species proposed threatened, the Atlantic pigtoe,
as potentially occurring in the vicinity of the project site.
Construction activities on -Site associated with the proposed project are not likely to adversely affect the reported threatened and endangered species
within the propmity of the project site, due to the lack of suitable habitat. The NCNHP report identified one known occurrence of the Atlantic pigtoe in
1951 within the 1-mile radius of the project site limits. However, the Atlantic pigtoe requires excellent water quality and the streams on -Site are subject
to high amounts of urban runoff and pollution. Further, no occurrences of the aforementioned protected species were observed during the on -Site
inspection.
Due to the lack of suitable habitat and the limited amount of impacts from this project, it is the opinion of Timmons Group that this project will have no
effect on federally threatened or endangered species.
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
r Yes r No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*
NOAA National Marine Fisheries Service Essential Fish Habitat Mapper
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
Link to the State Historic Preservation Office Historic Properties Map (does not include archaeological data: http://gis.neder.gov/hpoweb/
7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation status (e.g., National Historic
Trust designation or properties significant in North Carolina historyand archaeology)?*
r Yes c- No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*

Per a review of the North Carolina Natural Heritage Preservation Office's online database (HPOWEB), 592 hits were listed within a 1-mile radius of the
proposed project limits. One listing, NR WA3360, Washington Graded and High School occurs within the proposed project limits. However, there will be
no direct impact on the historic resource. Overall, this culvert replacement project will not be changing the landscape of the area and will not adversely
impact any of the surrounding historic resources.
8. Flood Zone Designation (Corps Requirement)
Link to the FEMAFloodplain Maps: https://rrse.fema.gov/portal/search
8a. Will this project occur in a FEMA-designated 100-year floodplain?
R Yes r No
8b. If yes, explain how project meets FEMA requirements:
The majority of the Site is located within Zone AE of a FEMA 100-year flood plain with base flood elevations ranging from 242 to 244 feet above mean
sea level according to FEMA FIRM Panel #3720170300J (effective 5/2/2006).
A no -rise was obtained for the flood study with the City of Raleigh and the local flood plain administrator. Any fill to be placed within the floodplain was
deemed allowable by the City. Please see the No Rise Floodstudy Work Map which is included as an attachment.
8c. What source(s) did you use to make the floodplain determination?*
FEMA FIRM Panel #3720170300J (effective 5/2/2006)
Miscellaneous
Comments
Please use the space belowto attach all required documentation or anyadditional information you feel is helpful for application review. Documents should be combined into one
file when possible, with a Cover Letter, Table of Contents, and a Cover Sheet for each Section preferred.
Oickthe upload button a drag and drop files here to attach docurrent
2021.09.09_Cover Letter and Appendices.pdf 15.08MB
File mst be FLF a lQvI7
Signature V
[;a By checking the box and signing below, I certify that:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief'; and
• The project proponent hereby requests that the certifying authority review and take action on this CWA401 certification request within the applicable reasonable period of time.
• I have given true, accurate, and complete information on this form;
• I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
• I intend to electronically sign and submit the PCN form.
Full Name:*
Matt Michel
Signature *
aralz-6- t'MW
Date
9/15/2021

Appendix A: Agent Authorizations

.w00000
0 a
TIMMONS GROUP
YOUR VISION ACHIEVED THROUGH OURS.
AGENT AUTHORIZATION and
PROPERTY OWNER CERTIFICATION FORM
All Blanks to be Filled in by Current Landowner
The Department of the Army NCDEQ — Division of Water Resources
US Army Corps of Engineers 401 & Buffer Permitting Unit
Wilmington District 16%Mai1 Service Center
PO Box 1890 Raleigh, NC 27699-1650
Wilmington, NC 28402-1890
To Whom It May Concern:
I, the undersigned, current property owner designate and authorize representatives of Timmons Group to
act on my behalf as my agent in the processing of permit applications, to furnish upon request
supplemental information in support of applications, etc., from this day forward.
This the 4;:_ day of �l�Jr21, 20!:;?2P
(number) (Month) (Year)
I, the undersigned, a duly authorized owner of record of the property/properties identified herein, do
authorize representatives of the Wilmington District, U.S. Army Corps of Engineers (Corps) and NCDEQ
Division of Water Resources (DWR) to enter upon the property herein described for the purpose of
conducting on -site investigations and issuing a determination associated with Waters of the U.S. subject
to Federal jurisdiction under Section 401 and 404 of the Clean Water Act, and/or Section 10 of the Rivers
and Harbors Act of 1899.
This notification supersedes any previous correspondence concerning the agent for this project.
Project Name: Washington Elementary School
Parcel ID: 1703545365
Site Address: 1000 Fayetteville St.
Raleigh, NC 2�760�1 r
Property Owner's Name
Property Owner's Signatur
Property Owner's Mailing Address: � (� �'� Su rE I
NL Z?-.S-I 8
Property Owner's Telephone: �1��9 4 D2 f 8 Fax No. tJ/A
Property Owner's Email Address: EQ Vi n e LA) L F? S S . ✓1 e- 7NJ
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The Department of the Army
US Army Corps of Engineers
Wilmington District
PO Box 1890
Wilmington, NC 28402-1890
To Whom It May Concern:
TIMMONS GROUP
YOUR VISION ACHIEVED THROUGH OURS.
AGENT AUTHORIZATION
All Blanks to be Filled in by Applicant
NCDEQ — Division of Water Resources
401 & Buffer Permitting Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
I, the undersigned, current applicant designate, authorize representatives of Timmons Group to
act on my behalf as my agent in the processing of permit applications, to furnish upon request
supplemental information in support of applications, etc., from this day forward.
This the 9th day of September 120 21
(number) (Month) (Year)
This notification supersedes any previous correspondence concerning the agent for this project.
Project Name: Washington Elementary School
Applicant Name (Print): Gurel Architecture — Mete Gurel
Applicant Signature:
Applicant Mailing Address: 1145 Executive ircle, Suite B, Cary, NC 27511
Applicant Fax [phone]
Telephone: No. 919.468.1716
Applicant Email [e-mail]
Address:
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Appendix B: Vicinity Map, NRCS Soil Map, and Wetlands
and Waters Delineation Map

Path: YA805\46651 -Washington Elementary Schoo1\GIS\46651-JD-VIC.mxd
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Site Limits
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WALKER ST
0 1,000 2,000
3,000
4,000
Feet
60
WASHINGTON ELEMENTARY SCHOOL
T I M M O N S GROUP •'•ems
WAKE COUNTY, NORTH CAROLINA
�®
FIGURE 1: VICINITY MAP
YOUR VISION ACHIEVED THROUGH OURS.
TIMMONS GROUP JOB NUMBER: 46651
U.S.G.S. QUADRANGLE(S): RALEIGH WEST
PROJECT STUDY LIMITS: 8.40ACRES
DATE(S): 2019
LATITUDE: 35.767110
WATERSHED(S): UPPER NEUSE (NEUSE RIVER BASIN)
LONGITUDE:-78.643899
ese o an an associate ocum en[s are [ e exc usrve orooertv o
an may no[ a repro uce in
w hole
HYDROLOGIC UNIT CODE(S): 03020201
or in Dart an s a no[ a usea Tor anv ouroose w a[soever. inc usrve. ut not
construction, bidding, and/or construction staking without the express written consent of TIMMONS GROUP.

Path: Y:\805\46651 - Washington Elementary School\GIS\46651-JD-NRCS.mxd
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Soils from NRCS web soil survey. � -
0 420 840 1.260 1,680
Feet nH
WASHINGTON ELEMENTARY SCHOOL T I M M O N S GROUP •'��
WAKE COUNTY, NORTH CAROLINA
FIGURE 5: NRCS SOIL SURVEY MAP YOUR VISION ACHIEVED THROUGH OURS.
TIMMONS GROUP JOB NUMBER: 46651 U.S.G.S. QUADRANGLE(S): RALEIGH WEST
PROJECT STUDY LIMITS: 8.40ACRES DATE(S): 2019
LATITUDE: 35.767110 WATERSHED(S): UPPER NEUSE (NEUSE RIVER BASIN)
LONGITUDE:-78.643899 HYDROLOGIC UNIT CODE(S): 03020201
ese plans and associate ocuments are t e exc usrve property o an may no[ aepro u rce in Mole e or in partan s a no[ a use or any purpose w a[soever, inc usrve, ut not
limited to construction, bidding, and/or construction staking without the express written consent of TIMMONS GROUP.

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Appendix C: Preliminary Jurisdictional Determination
Informal Approval and DWR Buffer Determination
Informal Confirmation

Kate Hefner
From: Lauren Norris -Heflin
Sent: Wednesday, November 18, 2020 12:02 PM
To: Kate Hefner; Sydni Law
Subject: FW: Washington Elementary School / 1000 Fayetteville Street / Raleigh / Wake County /
SAW-2020-01767 / PJD Request
Attachments: Figure 6 - Potential Wetlands and Waters Delineation Map.pdf
Lauren Norris -Heflin
Environmental Project Manager
Office: 919.866.4943 1 Cell:919.607.1723
From: Phillips, George L CIV USARMY CESAW (USA) <[e-mail]>
Sent: Wednesday, November 18, 2020 11:55 AM
To: Lauren Norris -Heflin <Lauren.Norris-Heflin @timmons.com>
Subject: Washington Elementary School / 1000 Fayetteville Street / Raleigh / Wake County / SAW-2020-01767 / PJD
Request
F
UTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the
nder and know the content is safe.
Lauren,
Based on my site visit on 11/18/2020 the Corps concurs with the delineation within the pink outlined "Project Study
Limits" on the attached exhibit "Figure 6 - Potential Wetlands and Waters Delineation Map". It may take 90-120 days for
the issuance of a written jurisdictional determination. The delineation may be used for planning and permitting
purposes, should a permit be required the JD can be issued and the time of permit verification. AID for the project is
SAW-2020-01767. I have attached the delineation for reference.
Please let me know if you have any questions or concerns.
Lyle Phillips
Regulatory Specialist
US Army Corps of Engineers
CE-SAW-RG-R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Phone: [phone], Ext. 25.
Fax: [phone]
Email: [e-mail]
We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is
located at: http://corpsmapu.usace.army.mil/cm apex/f?p=136:4:0. Thank you for taking the time to visit this site anc
complete the survey.

Kate Hefner
From: Brigham, Joshua S <[e-mail]>
Sent: Monday, November 30, 2020 2:17 PM
To: Kate Hefner
Cc: Lauren Norris -Heflin
Subject: RE: [External] Buffer Determination Review Request - Washington Elementary School -
Raleigh, NC
CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you recognize the
sender and know the content is safe.
Good to hear from you Kate!
For sites located in the Neuse River Basin -Per 15A NCAC 02B. 0714, all features depicted on the most recent version of
the published manuscript of the soil survey map or the USCG National map, are subject to the riparian buffer
regulations. If a landowner or affected party believes these maps inaccurately depict surface waters or the specific origin
point of a stream then an onsite determination can be requested.
That being said, per our e-mail conversations and the documents presented to me, the features, as depicted on the
provided maps, are subject to the Neuse River riparian buffer regulations, outlined in 15A NCAC 02B. 0714. The maps
can be used for planning and future permitting needs.
Thanks,
Joshua S. Brigham -Environmental Specialist
NCDEQ-Division of Water Resources
Raleigh Regional Office
Office: 919-791-4251
v
-000'DEQ§
-%.F
enrrnriwxal a+rry_-LIM
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to
third parties.
From: Kate Hefner[mailto:Kate. [e-mail]]
Sent: Monday, November 30, 2020 1:58 PM
To: Brigham, Joshua S <[e-mail]>
Cc: Lauren Norris -Heflin <[e-mail]>
Subject: RE: [External] Buffer Determination Review Request - Washington Elementary School - Raleigh, NC
• 1 External email. Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
ort.s am nc. ov

Appendix D: Environmental Impacts Set

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A Pipe Culvert Outlet Scour Analysis 50-Year
1 Estimating Scoure Hole Geometry in Cohesionless Soil (Q50)
1 Peak Discharge (Q50)-Main channel Pipe Q = 150.17 ft3/s
3 Culvert Diameter D = 5.00 ft
4 Material Standard Deviation (Sigma, Gravel Bed Assumed) S = 2.10
5 Duration of Peak Discharge t = 30.00 min
6 Fullflow Hydraulic Radius R = 1.25 ft/s
7 Hight above bed ratio Hd = 0.00 ftZ/s
2 Calculation of Scour Hole Geometry
h, W, L$ 11 _ a i� t
Rc " R� " R� "�J - OaC�, ,ra f `g(R2.$) 316 ( I
where,
ha
= depth of scour, m (ft)
W$
= width of scour, m (ft)
Lg
= length of Scour, m (ft)
V.
= volume of scour, m3 {W)
R�
= hydraulic radius at the and of the culvert (assuming full flow)
Q
- discharge, m�fs (Wls)
g
= acceleration of gravity, 9.81 mIs` (32.2 ft /s2)
t
= time in minutes
6
= (D6,VD,0)0-', material standard deviation
a,, 0 are coefficients, see Table 5.1
Q$
= Slope Correction coefficient, see Table 5.2
Qh
= drop height adjustment coefficient, see Table 5.3
The bed -material grain -size distribution is determined by performing a sieve analysis (ASTM
DA22-63)_ The values of Da4 and D1s are extracted from the grain size distribution. If a <1.5,
the materiel is considered to be uniform. If ry >1.5, the material is classified as graded. Typical
values for a are 2.10 for gravel and 1.87 for sand.
Alpha
Beta
Teta
Cs
Ch
Depth of Scour
2.27
0.39
0.06
1.02
1
Width of Scour
6.94
0.53
0.08
1.14
1
Length of Scour
17.1
0.47
0.10
1.09
1
Volume of Scour
1 127.08
1 1.24
1 0.18
11.15
1 1
8 Depth of Scour
hs =
4.51 ft
9 Width of Scour
Ws =
21.61 ft
10 Length of Scour
Ls =
41.07 ft
11 Volume of Scour
Vs =
2172.59 ft
12 Location of Maximum Scour
Ls =
18.04 ft3

Project Name:
Washington Elementary School
Project Number:
46651
Location:
City of Raleigh
Date:
12/8/2020
Prepared By:
Abrham Aafaw, El
Checked By:
Becky Ward
Existing or Proposed:
Proposed
Storm Event Return Period (year):
25-Year
HYDRAULIC DESIGN OF ENERGY DISSIPATORS FOR CULVERTS AND CHANNELS
RIPRAP BASIN AND APRONS FOR CULVERT - FHWA HEC 14 CIRCULAR, CHAPTER 10
Directions for user: Fill in the appropriate values for the cells with a yellow background.
The spreadsheet will then calculate the recommended dimensions for the riprap
basin at the culvert outlet. Refer to the Figures Spreadsheet for Definition of Values
TABLE 1 - INPUT DATA
CULVERT
CULVERT
Voutlet
OUTLET
TAILWATEF
CULVERT
OUTLET
HEIGHT
WIDTH
DEPTH
Y2
DEPRESSION
FROUDE#
TW/Ye
H
W
Ye
Hd
Fr
RATIO
see note 1
see note2
see note3
see note 4
ft ft fps ft ft ft.
5 5 11.3 3.02 3.79 1.00 1.15
1.25
NOTES 1 V= Q/A where A is the wetted area at brink of culvert
2 box culverts: Ye = culvert outlet (brink) depth
non rectangles: Ye = (A/2)" 0.5
where A is the wetted area at brink of culvert
3 For best results,TW/Ye < 0.75
4 Hd = culvert depression below streambed
TABLE 2 COMPUTATION OF BASIN LENGTH AND WIDTH
RIPRAP
D50 (FT.)
D50Ne
Hs/Ye
Hs
LENGTH
LENGTH
GOVERNING
BASIN
(Hs+Hd)/D50
SEE NOTE 1
SCOUR
METHOD 1
METHOD 2
LENGTH
WIDTH
DEPTH
L= 10Hs
L= 3W
L
WB
SEE NOTE 2
SEE NOTE 3
SEE NOTE 4
CLASS B
0.67
0.22
1.09
3.29
32.9
15.00
32.9
42.1
6.44
CLASS 1
0.79
0.26
0.86
2.61
26.1
15.00
26.1
37.6
4.57
CLASS 11
1 1.00
0.331
0.58
1.761
17.61
15.001
17.61
31.91
2.76
NOTE 1 SCOUR DEPTH TO BRINK DEPTH RATIO NOTE 4
Hs/Ye = Fr*(1/(D50/Ye))"0.54-1.5 BEST RESULTS WITH ENERGY DISSIPATION
ARE ACHIEVED WITH A PRE -FORMED SCOUR
NOTE 2 CULVERT WIDTH (W) HOLE HAVING A DEPTH (Hs + Hd) EQUAL TO A
DETERMINE WAS FOLLOWS: VALUE OF TWO OR MORE TIMES THE D50
SINGLE CULVERTS RIPRAP SIZE ((Hs+Hd)/D50 =>2)
BOX CULVERTS: W = BOX WIDTH
ROUND/ OVAL PIPES: W = DIAMETER OR HORIZONTAL DIMENSION
NOTE 3 BASIN WIDTH (WB) CALCULATIONS
BASIN WIDTH =Wg=N*W+(N-1)*S+2*(L/3+2*Y2+2*FB)
FILL IN VALUES OF W, N AND S BELOW
WHERE W = CULVERT WIDTH OF SINGLE CULVERT W = 0
N = NUMBER OF BARRELS N = 0
S = SPACING BETWEEN CULVERTS S = 0
L = BASIN LENGTH FB
Hs= SCOUR DEPTH
FB = BASIN FREEBOARD

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Washington Elementary
11/18/2020
POI-1
Drainage Area (sq.mi) 0.205
Regional Curve Data
Rural
Urban
Bankfull Cross Sectional Area (SF)
7.6
21.5
Bankfull Width (FT)
8.2
14.5
Bankfull Depth (FT)
1.0
1.4
Bankfull Discharge (CFS)
29.71
113.0

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StreamStats
Washington Elementary School StreamStats Report
4ew8
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Region ID: NC
Workspace ID: NC20201124200233016000
Clicked Point (Latitude, Longitude): 35.76800,-78.64683
Time: 2020-1 1-24 15:02:49 -0500
Pullen
Park
_ U
Basin Characteristics
Parameter
Code
Parameter Description
Value
Unit
DRNAREA
Area that drains to a point on a stream
0.16
square
miles
LC061MP
Percentage of impervious area determined from NLCD 2006
63.7
percent
impervious dataset
PCTREG1
Percentage of drainage area located in Region 1
100
percent
PCTREG2
Percentage of drainage area located in Region 2
0
percent
PCTREG3
Percentage of drainage area located in Region 3
0
percent
PCTREG4
Percentage of drainage area located in Region 4
0
percent
https://streamstats.usgs.gov/ss/ 1 /4

11 /24/2020 StreamStats
Parameter
Code Parameter Description Value Unit
PCTREG5 Percentage of drainage area located in Region 5 0 percent
Urban Peak -Flow Statistics ParameterS[Region 1 Piedmont Urban under 3 sgmi 2014 5030]
Parameter Code Parameter Name Value Units Min Limit Max Limit
DRNAREA Drainage Area 0.16 square miles 0.1 3
LC061MP Percent Impervious NLCD2006 63.7 percent 0 47.9
Urban Peak -Flow Statistics DisclalmerS[Region 1 Piedmont Urban under 3 sgmi 2014 5030]
One or more of the parameters is outside the suggested range. Estimates were extrapolated with
unknown errors
Urban Peak -Flow Statistics Flow Report[Region 1 Piedmont Urban under sqmi 2014 50301
Statistic
Value
Unit
Urban 2 Year Peak Flood
313
ft"3/s
Urban 5 Year Peak Flood
302
ft"3/s
Urban 10 Year Peak Flood
292
ft"3/s
Urban 25 Year Peak Flood
272
ft"3/s
Urban 50 Year Peak Flood
256
ft"3/s
Urban 100 Year Peak Flood
245
ft"3/s
Urban 200 Year Peak Flood
232
ft"3/s
Urban 500 Year Peak Flood
234
ft"3/s
Urban Peak -Flow Statistics Citations
Feaster, T.D., Gotvald, A.J., and Weaver, J.C.,2014, Methods for estimating the magnitude
and frequency of floods for urban and small, rural streams in Georgia, South Carolina, and
North Carolina, 2011 (ver. 1.1, March 2014): U.S. Geological Survey Scientific
Investigations Report 2014-5030, 104 p. (http://pubs.usgs.gov/sir/2014/5030/)
Peak -Flow Statistics ParameterS[Region 1 Piedmont rural under 1 sgmi 2014 50301
https://streamstats.usgs.gov/ss/ 2/4

11 /24/2020 StreamStats
Parameter Code Parameter Name Value Units Min Limit Max Limit
DRNAREA Drainage Area 0.16 square miles 0.1 1
LC061MP Percent Impervious NLCD2006 63.7 percent 0 47.9
Peak -Flow Statistics Disclal mers[Region 1 Piedmont rural under 1 sgmi 2014 50301
One or more of the parameters is outside the suggested range. Estimates were extrapolated with
unknown errors
Peak -Flow Statistics Flow Report[Region 1 Piedmont rural under 1 sgmi 2014 50301
Statistic Value Unit
2 Year Peak Flood 313 ft"3/s
5 Year Peak Flood 302 ft"3/s
10 Year Peak Flood 292 ft"3/s
25 Year Peak Flood 272 ft"3/s
50 Year Peak Flood 256 ft"3/s
100 Year Peak Flood 245 ft"3/s
200 Year Peak Flood 232 ft"3/s
500 Year Peak Flood 234 ft"3/s
Peak -Flow Statistics Citations
Feaster, T.D., Gotvald, A.J., and Weaver, J.C.,2014, Methods for estimating the magnitude
and frequency of floods for urban and small, rural streams in Georgia, South Carolina, and
North Carolina, 2011 (ver. 1.1, March 2014): U.S. Geological Survey Scientific
Investigations Report 2014-5030, 104 p. (http://pubs.usgs.gov/sir/2014/5030/)
USGS Data Disclaimer: Unless otherwise stated, all data, metadata and related materials are considered to satisfy the quality
standards relative to the purpose for which the data were collected. Although these data and associated metadata have
been reviewed for accuracy and completeness and approved for release by the U.S. Geological Survey (USGS), no warranty
expressed or implied is made regarding the display or utility of the data for other purposes, nor on all computer systems,
nor shall the act of distribution constitute any such warranty.
USGS Software Disclaimer: This software has been approved for release by the U.S. Geological Survey (USGS). Although the
software has been subjected to rigorous review, the USGS reserves the right to update the software as needed pursuant to
further analysis and review. No warranty, expressed or implied, is made by the USGS or the U.S. Government as to the
functionality of the software and related material nor shall the fact of release constitute any such warranty. Furthermore,
the software is released on condition that neither the USGS nor the U.S. Government shall be held liable for any damages
resulting from its authorized or unauthorized use.
https://streamstats.usgs.gov/ss/ 3/4

MMIFAKINII
StreamStats
USGS Product Names Disclaimer: Any use of trade, firm, or product names is for descriptive purposes only and does not
imply endorsement by the U.S. Government.
Application Version: 4.4.0
https://streamstats.usgs.gov/ss/ 4/4

A Pipe Culvert Outlet Scour Analysis 50-Year
1 Estimating Scoure Hole Geometry in Cohesionless Soil (Q50)
1 Peak Discharge (Q50)-Main channel Pipe Q = 150.17 ft3/s
3 Culvert Diameter D = 5.00 ft
4 Material Standard Deviation (Sigma, Gravel Bed Assumed) S = 2.10
5 Duration of Peak Discharge t = 30.00 min
6 Fullflow Hydraulic Radius R = 1.25 ft/s
7 Hight above bed ratio Hd = 0.00 ftZ/s
2 Calculation of Scour Hole Geometry
h, W, L$ 11 _ a i� t
Rc " R� " R� "�J - OaC�, ,ra f `g(R2.$) 316 ( I
where,
ha
= depth of scour, m (ft)
W$
= width of scour, m (ft)
Lg
= length of Scour, m (ft)
V.
= volume of scour, m3 {W)
R�
= hydraulic radius at the and of the culvert (assuming full flow)
Q
- discharge, m�fs (Wls)
g
= acceleration of gravity, 9.81 mIs` (32.2 ft /s2)
t
= time in minutes
6
= (D6,VD,0)0-', material standard deviation
a,, 0 are coefficients, see Table 5.1
Q$
= Slope Correction coefficient, see Table 5.2
Qh
= drop height adjustment coefficient, see Table 5.3
The bed -material grain -size distribution is determined by performing a sieve analysis (ASTM
DA22-63)_ The values of Da4 and D1s are extracted from the grain size distribution. If a <1.5,
the materiel is considered to be uniform. If ry >1.5, the material is classified as graded. Typical
values for a are 2.10 for gravel and 1.87 for sand.
Alpha
Beta
Teta
Cs
Ch
Depth of Scour
2.27
0.39
0.06
1.02
1
Width of Scour
6.94
0.53
0.08
1.14
1
Length of Scour
17.1
0.47
0.10
1.09
1
Volume of Scour
1 127.08
1 1.24
1 0.18
11.15
1 1
8 Depth of Scour
hs =
4.51 ft
9 Width of Scour
Ws =
21.61 ft
10 Length of Scour
Ls =
41.07 ft
11 Volume of Scour
Vs =
2172.59 ft
12 Location of Maximum Scour
Ls =
18.04 ft3

Project Name:
Washington Elementary School
Project Number:
46651
Location:
City of Raleigh
Date:
12/8/2020
Prepared By:
Abrham Aafaw, El
Checked By:
Becky Ward
Existing or Proposed:
Proposed
Storm Event Return Period (year):
25-Year
HYDRAULIC DESIGN OF ENERGY DISSIPATORS FOR CULVERTS AND CHANNELS
RIPRAP BASIN AND APRONS FOR CULVERT - FHWA HEC 14 CIRCULAR, CHAPTER 10
Directions for user: Fill in the appropriate values for the cells with a yellow background.
The spreadsheet will then calculate the recommended dimensions for the riprap
basin at the culvert outlet. Refer to the Figures Spreadsheet for Definition of Values
TABLE 1 - INPUT DATA
CULVERT
CULVERT
Voutlet
OUTLET
TAILWATEF
CULVERT
OUTLET
HEIGHT
WIDTH
DEPTH
Y2
DEPRESSION
FROUDE#
TW/Ye
H
W
Ye
Hd
Fr
RATIO
see note 1
see note2
see note3
see note 4
ft ft fps ft ft ft.
5 5 11.3 3.02 3.79 1.00 1.15
1.25
NOTES 1 V= Q/A where A is the wetted area at brink of culvert
2 box culverts: Ye = culvert outlet (brink) depth
non rectangles: Ye = (A/2)" 0.5
where A is the wetted area at brink of culvert
3 For best results,TW/Ye < 0.75
4 Hd = culvert depression below streambed
TABLE 2 COMPUTATION OF BASIN LENGTH AND WIDTH
RIPRAP
D50 (FT.)
D50Ne
Hs/Ye
Hs
LENGTH
LENGTH
GOVERNING
BASIN
(Hs+Hd)/D50
SEE NOTE 1
SCOUR
METHOD 1
METHOD 2
LENGTH
WIDTH
DEPTH
L= 10Hs
L= 3W
L
WB
SEE NOTE 2
SEE NOTE 3
SEE NOTE 4
CLASS B
0.67
0.22
1.09
3.29
32.9
15.00
32.9
42.1
6.44
CLASS 1
0.79
0.26
0.86
2.61
26.1
15.00
26.1
37.6
4.57
CLASS 11
1 1.00
0.331
0.58
1.761
17.61
15.001
17.61
31.91
2.76
NOTE 1 SCOUR DEPTH TO BRINK DEPTH RATIO NOTE 4
Hs/Ye = Fr*(1/(D50/Ye))"0.54-1.5 BEST RESULTS WITH ENERGY DISSIPATION
ARE ACHIEVED WITH A PRE -FORMED SCOUR
NOTE 2 CULVERT WIDTH (W) HOLE HAVING A DEPTH (Hs + Hd) EQUAL TO A
DETERMINE WAS FOLLOWS: VALUE OF TWO OR MORE TIMES THE D50
SINGLE CULVERTS RIPRAP SIZE ((Hs+Hd)/D50 =>2)
BOX CULVERTS: W = BOX WIDTH
ROUND/ OVAL PIPES: W = DIAMETER OR HORIZONTAL DIMENSION
NOTE 3 BASIN WIDTH (WB) CALCULATIONS
BASIN WIDTH =Wg=N*W+(N-1)*S+2*(L/3+2*Y2+2*FB)
FILL IN VALUES OF W, N AND S BELOW
WHERE W = CULVERT WIDTH OF SINGLE CULVERT W = 0
N = NUMBER OF BARRELS N = 0
S = SPACING BETWEEN CULVERTS S = 0
L = BASIN LENGTH FB
Hs= SCOUR DEPTH
FB = BASIN FREEBOARD

Appendix E: ME Species Information - IPaC Report and
NCNHP Report

United States Department of the Interior
-� FISH AND WILDLIFE SERVICE
Raleigh Ecological Services Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
Phone: [phone] Fax: [phone]
In Reply Refer To:
Consultation Code: 04EN2000-2021-SLI-1892
Event Code: 04EN2000-2021-E-03978
Project Name: Washington Elementary School
August 18, 2021
Subject: List of threatened and endangered species that may occur in your proposed project
location or may be affected by your proposed project
To Whom It May Concern:
The species list generated pursuant to the information you provided identifies threatened,
endangered, proposed and candidate species, as well as proposed and final designated critical
habitat, that may occur within the boundary of your proposed project and/or may be affected by
your proposed project. The species list fulfills the requirements of the U.S. Fish and Wildlife
Service (Service) under section 7(c) of the Endangered Species Act (Act) of 1973, as amended
(16 U.S.C. 1531 et seq.).
New information based on updated surveys, changes in the abundance and distribution of
species, changed habitat conditions, or other factors could change this list. Please feel free to
contact us if you need more current information or assistance regarding the potential impacts to
federally proposed, listed, and candidate species and federally designated and proposed critical
habitat. Please note that under 50 CFR 402.12(e) of the regulations implementing section 7 of the
Act, the accuracy of this species list should be verified after 90 days. This verification can be
completed formally or informally as desired. The Service recommends that verification be
completed by visiting the ECOS-TPaC website at regular intervals during project planning and
implementation for updates to species lists and information. An updated list may be requested
through the ECOS-IPaC system by completing the same process used to receive the enclosed list.
Section 7 of the Act requires that all federal agencies (or their designated non-federal
representative), in consultation with the Service, insure that any action federally authorized,
funded, or carried out by such agencies is not likely to jeopardize the continued existence of any
federally -listed endangered or threatened species. A biological assessment or evaluation may be
prepared to fulfill that requirement and in determining whether additional consultation with the
Service is necessary. In addition to the federally -protected species list, information on the
species' life histories and habitats and information on completing a biological assessment or

08/18/2021 Event Code: 04EN2000-2021-E-03978
evaluation and can be found on our web page at http://www.fws.gov/raleigh. Please check the
web site often for updated information or changes
If your project contains suitable habitat for any of the federally -listed species known to be
present within the county where your project occurs, the proposed action has the potential to
adversely affect those species. As such, we recommend that surveys be conducted to determine
the species' presence or absence within the project area. The use of North Carolina Natural
Heritage program data should not be substituted for actual field surveys.
If you determine that the proposed action may affect (i.e., likely to adversely affect or not likely
to adversely affect) a federally -protected species, you should notify this office with your
determination, the results of your surveys, survey methodologies, and an analysis of the effects
of the action on listed species, including consideration of direct, indirect, and cumulative effects,
before conducting any activities that might affect the species. If you determine that the proposed
action will have no effect (i.e., no beneficial or adverse, direct or indirect effect) on federally
listed species, then you are not required to contact our office for concurrence (unless an
Environmental Impact Statement is prepared). However, you should maintain a complete record
of the assessment, including steps leading to your determination of effect, the qualified personnel
conducting the assessment, habitat conditions, site photographs, and any other related articles.
Please be aware that bald and golden eagles are protected under the Bald and Golden Eagle
Protection Act (16 U.S.C. 668 et seq.), and projects affecting these species may require
development of an eagle conservation plan (http://www.fws.gov/windenergy/
eagle_guidance.html). Additionally, wind energy projects should follow the wind energy
guidelines (http://www.fws.gov/windenergy/) for minimizing impacts to migratory birds and
bats.
Guidance for minimizing impacts to migratory birds for projects including communications
towers (e.g., cellular, digital television, radio, and emergency broadcast) can be found at: http://
www.fws.gov/migratorybirds/CurrentBirdlssues/Hazards/towers/towers.htm; http://
www.towerkill.com; and http://www.fws.gov/migratorybirds/CurrentBirdlssues/Hazards/
towers/comtow.html.
Not all Threatened and Endangered Species that occur in North Carolina are subject to section 7
consultation with the U.S Fish and Wildlife Service. Atlantic and shortnose sturgeon, sea
turtles when in the water, and certain marine mammals are under purview of the National Marine
Fisheries Service. If your project occurs in marine, estuarine, or coastal river systems you should
also contact the National Marine Fisheries Service, http://www.nmfs.noad.gov/
We appreciate your concern for threatened and endangered species. The Service encourages
Federal agencies to include conservation of threatened and endangered species into their project
planning to further the purposes of the Act. Please include the Consultation Tracking Number in
the header of this letter with any request for consultation or correspondence about your project
that you submit to our office. If you have any questions or comments, please contact John Ellis
of this office at [e-mail].

O8/18/2021 Event Code: 04EN2000-2021-E-03978
Attachment(s):
■ Official Species List

08/18/2021 Event Code: 04EN2000-2021-E-03978
Official Species List
This list is provided pursuant to Section 7 of the Endangered Species Act, and fulfills the
requirement for Federal agencies to "request of the Secretary of the Interior information whether
any species which is listed or proposed to be listed may be present in the area of a proposed
action".
This species list is provided by:
Raleigh Ecological Services Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
[phone]

08/18/2021 Event Code: 04EN2000-2021-E-03978 2
Project Summary
Consultation Code: 04EN2000-2021-SLI-1892
Event Code: 04EN2000-2021-E-03978
Project Name: Washington Elementary School
Project Type: ** OTHER **
Project Description: This project is for a proposed culvert replacement at Washington
Elementary School.
Project Location:
Approximate location of the project can be viewed in Google Maps: https://
www.google.com/maps/(aD35.7669719,-78.64492136307416,14z
i)q r
n -
h = _
Alouut Ho p: __ C
Counties: Wake County, North Carolina

O8/18/2021 Event Code: 04EN2000-2021-E-03978
Endangered Species Act Species
There is a total of 6 threatened, endangered, or candidate species on this species list.
Species on this list should be considered in an effects analysis for your project and could include
species that exist in another geographic area. For example, certain fish may appear on the species
list because a project could affect downstream species.
IPaC does not display listed species or critical habitats under the sole jurisdiction of NOAA
Fisheriesl, as USFWS does not have the authority to speak on behalf of NOAA and the
Department of Commerce.
See the "Critical habitats" section below for those critical habitats that lie wholly or partially
within your project area under this office's jurisdiction. Please contact the designated FWS office
if you have questions.
1. NOAA Fisheries, also known as the National Marine Fisheries Service (NMFS), is an
office of the National Oceanic and Atmospheric Administration within the Department of
Commerce.
2WIM
NAME STATUS
Red -cockaded Woodpecker Picoides borealis Endangered
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/7614
Amphibians
NAME STATUS
Neuse River Waterdog Necturus lewisi Threatened
There is final critical habitat for this species. The location of the critical habitat is not available.
Species profile: https://ecos.fws.gov/ecp/species/6772
Fishes
NAME
STATUS
Carolina Madtom Noturus furiosus Endangered
There is final critical habitat for this species. The location of the critical habitat is not available.
Species profile: https://ecos.fws.gov/ecp/species/528

O8/18/2021
Event Code: 04EN2000-2021-E-03978
Clams
NAME
STATUS
Atlantic Pigtoe Fusconaia masoni
Proposed
There is proposed critical habitat for this species. The location of the critical habitat is not
Threatened
available.
Species profile: https://ecos.fws.gov/ecp/species/5164
Dwarf Wedgemussel Alosmidonta heterodon
Endangered
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/784
Flowering Plants
NAME STATUS
Michaux's Sumac Rhus michouxii Endangered
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/5217
Critical habitats
THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S
JURISDICTION.

EN
D■0 0 NC DEPARTMENT OF
■ ■
■■ on NATURAL AND CULTURAL RESOURCES
■ ■■
August 18, 2021
Kate Hefner
Timmons Group
5410 Trinity Road
Raleigh, NC 27607
RE: Washington Elementary School; 46651
Dear Kate Hefner:
Roy Cooper, Governor
D. Reid Wilson, Secretary
Walter Clark
Director, Division of Land and Water Stewardship
NCN H D E-15451
The North Carolina Natural Heritage Program (NCNHP) appreciates the opportunity to provide
information about natural heritage resources for the project referenced above.
A query of the NCNHP database indicates that there are records for rare species, important natural
communities, natural areas, and/or conservation/managed areas within the proposed project
boundary. These results are presented in the attached `Documented Occurrences' tables and map.
The attached 'Potential Occurrences' table summarizes rare species and natural communities that
have been documented within a one -mile radius of the property boundary. The proximity of these
records suggests that these natural heritage elements may potentially be present in the project area
if suitable habitat exists. Tables of natural areas and conservation/managed areas within a one -mile
radius of the project area, if any, are also included in this report.
If a Federally -listed species is documented within the project area or indicated within a one -mile
radius of the project area, the NCNHP recommends contacting the US Fish and Wildlife Service
(USFWS) for guidance. Contact information for USFWS offices in North Carolina is found here:
https://www.fws.gov/offices/Di rectory/ListOffices.cfm?statecode=37.
Please note that natural heritage element data are maintained for the purposes of conservation
planning, project review, and scientific research, and are not intended for use as the primary criteria
for regulatory decisions. Information provided by the NCNHP database may not be published
without prior written notification to the NCNHP, and the NCNHP must be credited as an information
source in these publications. Maps of NCNHP data may not be redistributed without permission.
Also please note that the NC Natural Heritage Program may follow this letter with additional
correspondence if a Dedicated Nature Preserve, Registered Heritage Area, Land and Water Fund
easement, or an occurrence of a Federally -listed species is documented near the project area.
If you have questions regarding the information provided in this letter or need additional assistance,
please contact Rodney A. Butler at rod ney.butler(d)ncdcr.aov or 919-707-8603.
Sincerely,
NC Natural Heritage Program
DEPARTMENT OF NATURAL AND CULTURAL RESOURCES
121 W. JONES STREET. RALEIGH. NC 27603 • 1651 MAIL SERVICE CENTER. RALEIGH. NC 27699
® OFC 919.707.9120 • FAX [phone]

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Appendix G: Flood Study Map

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Contact Name*
Contact Email Address*
Project Owner*
Project Name*
Project County*
Owner Address:*
Is this a transportation project?*
Kate Hefner
[e-mail]
Wake County Board of Education
Washington Elementary School
Wake
Street Address
111 Corning Road
Address Line 2
Suite 190
aty
Cary
Postal / Zip axle
27518
r Yes r No
Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - F- 401 Water Quality Certification -
Regular Express
F- Individual Permit F- Modification
F- Shoreline Stabilization
Does this project have an existing project ID#?*
C Yes c: No
State / Province / Pegion
NC
Country
United States
Do you know the name of the staff member you would like to request a meeting with?
Please give a brief project description below and include location information.*
This project is for a proposed culvert replacement at Washington
Elementary School. There are potential stream and buffer impacts.
By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section
401 Certification Rule the following statements:
This form completes the requirement of the Pre -Filing Meeting Request in the Clean Water Act Section 401 Certification
Rule.
1 understand by signing this form that I cannot submit my application until 30 calendar days after this pre -filing
meeting request.
I also understand that DWR is not required to respond or grant the meeting request.
Your project's thirty -day clock started upon receipt of this application. You will receive notification regarding meeting location
and time if a meeting is necessary. You will receive notification when the thirty -day clock has expired, and you can submit an
application.

Signature *
Submittal Date 8/16/2021

Contact Name*
Contact Email Address*
Project Owner*
Project Name*
Project County*
Owner Address:*
Is this a transportation project?*
Kate Hefner
[e-mail]
Wake County Board of Education
Washington Elementary School
Wake
Street Address
111 Corning Road
Address Line 2
Suite 190
aty
Cary
Postal / Zip axle
27518
r Yes r No
Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - F- 401 Water Quality Certification -
Regular Express
F- Individual Permit F- Modification
F- Shoreline Stabilization
Does this project have an existing project ID#?*
C Yes c: No
State / Province / Pegion
NC
Country
United States
Do you know the name of the staff member you would like to request a meeting with?
Please give a brief project description below and include location information.*
This project is for a proposed culvert replacement at Washington
Elementary School. There are potential stream and buffer impacts.
By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section
401 Certification Rule the following statements:
This form completes the requirement of the Pre -Filing Meeting Request in the Clean Water Act Section 401 Certification
Rule.
1 understand by signing this form that I cannot submit my application until 30 calendar days after this pre -filing
meeting request.
I also understand that DWR is not required to respond or grant the meeting request.
Your project's thirty -day clock started upon receipt of this application. You will receive notification regarding meeting location
and time if a meeting is necessary. You will receive notification when the thirty -day clock has expired, and you can submit an
application.

Signature *
Submittal Date 8/16/2021