20190998 Ver 1_PCN Form Submission_20190724

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02*10n of Water R"Ourc"
Pre -Construction Notification (PCN) Form
September 29, 2018 Ver 3
Initial Review
Has this project met the requirements for acceptance into the review process?*
r Yes
r No
Is this project a public transportation project?*
r Yes r No
CharxJe only if needed.
BIMS # Assigned
20190998
Is a payment required for this project?*
r No payment required
r Fee received
r Fee needed - send electronic notification
Select Project Reviewer*
Stephanie Goss:eads\szgoss
Information for Initial Review
1a. Name of project:
Park Apartments
1a. Who is the Primary Contact?*
Kelly Roth, McAdams Company
1 b. Primary Contact Email:*
[e-mail]
Date Submitted
7/24/2019
Nearest Body of Water
Booker Creek
Basin
Cape Fear
Water Classification
WS -IV; NSW
Site Coordinates
Latitude:
35.933125
A. Processing Information
County (or Counties) where the project is located:
Orange
Is this project a public transportation project?*
r Yes r No
Longitude:
-79.021612
1a. Type(s) of approval sought from the Corps:
V Section 404 Permit (wetlands, streams and waters, Clean Water Act)
F Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
1 b. What type(s) of permit(s) do you wish to seek authorization?
P Nationwide Permit (NWP)
F- Regional General Permit (RGP)
r- Standard (IP)
Version# *
1
Reviewing Office*
Raleigh Regional Office - [phone]
1c. Primary Contact Phone:*
[phone]

1c. Has the NWP or GP number been verified by the Corps?
r' Yes r No
Nationwide Permit (NWP) Number:
NWP Numbers (for multiple NWPS):
1d. Type(s) of approval sought from the DWR:
P 401 Water Quality Certification - Regular
F Non -404 Jurisdictional General Permit
F Individual Permit
29 - Residential Developments
1e. Is this notification solelyfor the record because written approval is not required?
For the record only for DWR 401 Certification:
For the record only for Corps Permit:
F 401 Water Quality Certification - Express
F Riparian Buffer Authorization
1f. Is this an after -the -fact permit application?*
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r- Yes r No
19. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r• Yes r- No
Acceptance Letter Attachment
1h. Is the project located in any of NC's twenty coastal counties?
r- Yes r No
1j. Is the project located in a designated trout watershed?
r Yes r No
B. Applicant Information
1d. Who is applying for the permit?
Owner W Applicant (other than owner)
le. Is there an Agent/Consultant for this project?
C Yes r- No
2. Owner Information
2a. Name(s) on recorded deed:
BR Chapel Hill LLC
2b. Deed book and page no.:
5112/538
2c. Responsible party:
2d. Address
Street Address
1345 Avenue of the Americas
Address Line 2
32nd Floor
city
New York
Postal / Zip Code
10105
2e. Telephone Number:
[phone]
2g. Email Address:*
[e-mail]
3. Applicant Information (if different from owner)
3a. Name:
State / Rovince / %gion
Newyork
Country
USA
2f. Fax Number:
r- Yes r No
r- Yes r No

Scott Underwood
3b. Business Name:
Woodfield Investments / WF The Park at Chapel Hill LLC
3c. Address
Street Address
11425 Horseman's Trail
Address Line 2
City
State / Rovince / Region
Raleigh
North Carolina
Postal / Zip Code
Country
27613
Wake
3d. Telephone Number: 3e. Fax Number:
[phone]
3f. Email Address:*
[e-mail]
C. Project Information and Prior Project History
1. Project Information
1b. Subdivision name:
(d appropriate)
1c. Nearest municipality/ town:
Chapel Hill
2. Project Identification
2a. Property Identification Number:
9799346446
2c. Project Address
Street Address
1250 Ephesus Church Road
Address Line 2
City
Chapel Hill
Fbstal / Zip Code
27517
3. Surface Waters
3a. Name of the nearest body of water to proposed project:*
Booker Creek
3b. Water Resources Classification of nearest receiving water:*
WS -IV: NSW
3c. What river basin(s) is your project located in?*
Cape Fear
3d. Please provide the 12 -digit HUC in which the project is located.
030300020603
4. Project Description and History
2b. Property size:
14
State / Rovince / Ragzm
North Carolina
Country
USA
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 14 -acre project area is located on the southwest side of Ephesus Church Road approximately 290 feet southeast of the intersection of Ephesus Church Road and Legion Road in
Chapel Hill, Orange County, North Carolina. The site is currently developed with several existing apartment buildings and associated driveways and parking lots with isolated forested
areas. Other land use in the vicinity includes residential and commercial developments with forested land interspersed. The project area lies within the Jordan Lake Watershed in the
Little Creek subwatershed. Stream features within the study area are tributaries to Booker Creek. There is a FEMA floodplain mapped along Booker Creek near the southwestern
boundary of the project area. Please refer to the attached USGS Location Map (Figure 1), Orange County Soil Survey Map (Figure 2) and Aerial Map (Figure 3) for more information on
the project setting.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
r Yes (- No F Unknown
4d. Attach an 8 1/2 X11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR)
02_WDF17000_Park _Fig1 USGS.pdf 2.47MB
4e. Attach an 8 1/2 X11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR)
03_WDF17000_Park _Fig2SS.pdf 2.29MB

4f. List the total estimated acreage of all existing wetlands on the property:
0.042
4g. List the total estimated linear feet of all existing streams on the property:
826
4h. Explain the purpose of the proposed project:*
The purpose of the proposed project is to redevelop the Park Apartments property to provide housing in Chapel Hill, North Carolina. An extension of Elliot Road through the site is
proposed to provide connections to Fordham Boulevard and Ephesus Church Road will be designed and permitted by the Town of Chapel Hill.
4i. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
The proposed development will include approximately 417 multi -family units in multiple buildings. Sanitary sewer service will be connected to the existing outfall to the southwest side of
the site and water will be connected to existing lines in Fordham Boulevard and Ephesus Church Road. The extension of Elliott Road through the site will be designed by Kimley-Horn &
Associates for the Town of Chapel Hill. The site plan includes on-site stormwater treatment and detention to treat runoff from the new impervious area for the proposed development as
well as the Elliott Road extension and Ephesus Church Road widening. The project includes grading for a building and retaining wall that will result in impacts to a jurisdictional wetland.
The attached Overall Wetland Impact Map (Figure 4) depicts the overall project plan view, and Inset 1 shows details of the proposed impact area. Heavy equipment typical for road
construction, utility installation and grading will be used to construct the proposed project such as track hoes, bulldozers, dump trucks and graders.
4j. Please upload project drawings for the proposed project.
04_WDF17000_Park_Fig3AERIAL.pdf 2.04MB
05_WDF17000_Park _impact map-overall-wetland.pdf 386.55KB
O6_WDF17000_Park _impact map -inset 1-wetland.pdf 99.68KB
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:
A PJD request was submitted to Samantha Dailey of the USACE on 7/5/2019
5b. If the Corps made a jurisdictional determination, what type of determination was made?*
r Preliminary r Approved r Not Verified r Unknown r WA
Corps AID Number:
SAW -2019-01265
5c. If 5a is yes, who delineated the jurisdictional areas?
Name (if known): Jennifer Burdette
Agency/Consultant Company: McAdams
Other:
5dl. Jurisdictional determination upload
6. Future Project Plans
6a. Is this a phased project?*
r Yes r 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?
The Town of Chapel Hill is implementing the design, permitting and construction of the Elliott Road extension that will bisect the proposed Park Apartments project.
D. Proposed Impacts Inventory
1. Impacts Summary
1a. Where are the impacts associated with your project? (check all that apply):
V Wetlands r Streams -tributaries r Buffers
r Open Waters r Pond Construction
2. Wetland Impacts
2a. Site #* (?) 2al Reason(?) 2b. Impact type * (?) 2c. Type of W. * 2d. W. name * 2e. Forested * 2f. Type of 2g. Impact
Jurisdicition * M area*
W� Grading 7 P Headwater Forest Wetland A Yes Both 0.001
acres)
2g. Total Temporary Wetland Impact
0.000
2g. Total Wetland Impact
0.001
2g. Total Permanent Wetland Impact
0.001

2h. Comments:
E. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
There is 0.001 acre of wetland within the project area. This is a small portion of a larger wetland, the remainder of which lies offsite. The portion of the
wetland that extends into the project area is adjacent to an eAsting parking lot that must be removed. The construction of a new parking lot in the
same location requires a retaining wall that will impact the 0.001 acre of the wetland that extends into the project area. This impact cannot be avoided
due to the need for the retaining wall adjacent to the proposed parking lot.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
A Sediment and Erosion Control Plan for the project will be developed and approved by the Town of Chapel Hill, and the project will comply with the
supplementary NPDES Construction Stormwater Permit (NCG010000).
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:
The total jurisdictional wetland impact is less than 0.1 acre.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
r Yes r No
What type of SCM are you providing?
r Level Spreader
r Vegetated Conveyance (lower SHWT)
r Wetland Swale (higher SHWT)
V Other SCM that removes minimum 30% nitrogen
F_ Proposed project will not create concentrated stormwater flowthrough the buffer
Diffuse Flow Documentation
07_WDF17000_ParkApts_SIA _2019-06-20.pdf 10.48MB
2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
r Yes r No
2b. Does this project meet the requirements for low density projects as defined in 15A NCAC 02H .1003(2)?
r Yes r No
2c. Does this project have a stormwater management plan (SMP) reviewed and approved under a state stormwater program or state -approved local government stormwater
program?
r Yes r No
2d. Which of the following stormwater management program(s) apply:
V Local Government r State
Local Government Stormwater Programs
R Phase II V NSW r USMP R Water Supply
Please identify which local government stormwater program you are using.
Town of Chapel Hill
Comments:
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?*
r Yes r No
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 (15ANCAC 2B.0200)?*
r Yes r No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*
r Yes r No
3b. If you answered "no," provide a short narrative description.
The proposed project is a redevelopment of an existing multi -family residential apartment complex. It is not anticipated that this project will result in
additional development that would impact downstream water quality.
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
r Yes r Nor N/A
4b. Describe, in detail, the treatment methods and dispositions (non -discharge or discharge) of wastewater generated from the proposed project. If the wastewater will be treated
at a treatment plant, list the capacity available at that plant.
Wastewater generated by the development will be directed to the Town of Chapel Hill sanitary sewer system. The Town will review the project to
ensure sufficient treatment capacity is available.
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
Sa. Will this project occur in or near an area with federally protected species or habitat?*
r Yes r No
Sb. 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?*
r Yes r• No
5e. Is this a DOT project located within Division's 1-8?
r Yes r No
5f. Will you cut any trees 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?
r Yes r No
5h. Does this project involve the construction/installation of a wind turbine(s)?'
r Yes r No
r Unknown
51. 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.?
r Yes r No
If yes, please provide details to include type of percussive activity, purpose, duration, and specific location of this activityon the property.
08_WDF17000_C-5 Demolition Plan.pdf 1.32MB
08_WDF17000_Percussive activity.pdf 46.17KB
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?
The USFWS IPaC web tool (https://ecos.fvs.gov/ipac/) and the NC Natural Heritage Program Data Explorer
(http://ncnhde.natureserve.org/content/map) were accessed on July 10, 2019 to determine if the project would impact Endangered Species or
Designated Critical Habitat. The attached Protected Species Assessment includes the descriptions of the species identified in the iPaC report and
their habitat, our biological opinion for each species, a species conclusion table, the USFWS iPaC report and the letter generated by the NHP project
review.
Consultation Documentation Upload
10_WDF17000_ParkApts_USFWS Review pkg.pdf 2.49MB
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?*
The NOAA Essential Fish Habitat (EFH) Mapper (http://wAw.habitat.noaa.gov/protection/efh/efhmapper/) was accessed on July 10, 2019.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
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?*

C Yes r No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*
McAdams reviewed the NC SHPO's HPOWEB online tool to determine whether there are any recorded historic structures or properties that may be
impacted by the proposed development. The review of the SHPO's records indicated that there are no historic structures or properties within 0.25
miles of the project area. An Environmental Review was requested from the SHPO on July 10, 2019. A response from the SHPO has not been received
at this time. The Environmental Review letter submitted to the SHPO on July 10, 2019 is attached.
7c. Historic or Prehistoric Information Upload
11_WDF17000_Cultural Resources Env Review Ltr.pdf 4.67MB
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA -designated 100 -year floodplain?*
O Yes C No
8b. If yes, explain how project meets FEMA requirements:
The attached No -Rise Certification was prepared by a qualified engineer to demonstrate that the proposed development will not increase base flood
elevations for Booker Creek.
8c. What source(s) did you use to make the floodplain determination?
FEMA FIRM panel 3710979900L effective 1/19/2018
Miscellaneous
Comments
Miscellaneous attachments not previously requested.
09_WDF17000_2019-04-23 No Rise Certification.pdf
Signature
[7 By checking the box and signing below, I certify that:
6.63MB
• 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:
Kelly Roth
Signature
Date
7/24/2019

J MCADAMS AGENT A'UTHURIZATION FORM
All Blanks To Be Filled In By The Current Contract Purchaser
PIN:
9799346446
Name:
Woodfield Investments — Scott Underwood / WF The Park at Chapel Hill LLC
Address:
11425 Horseman's Trail, Raleigh, NC 27613
Phone/Email:
[e-mail] 919-740-8877
Project Name:
Park Apartments
Project Number:
WDF-17000
Project Manager:
Sean Gleason/Jennifer Burdette
Attn: Ross Sullivan
Attn: Karen Higgins
US Army Corps of Engineers NC Division of Water Resources
Raleigh Regulatory Field Office 401 & Buffer Permitting Branch
3331 Heritage Trade Drive, Suite 105 512 N. Salisbury Street
Wake Forest, NC 27587 Raleigh, NC 27604
Re: WOTUS and Riparian Buffer Related Consulting and Permitting
To Whom It May Concern:
I hereby designate and authorize The John R. McAdams Company, Inc. to act in 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.
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 NC Division of Water Resources
to enter upon the property herein described for the purpose of conducting on-site investigation and issuing a
determination associated with Water of the U.S. subject to Federal jurisdiction under Section 404 of the Clean Water
Act/Section 10 of the Rivers and Harbors Act of 1899 and/or Waters of State and/or Riparian Buffer Rules.
This notification supersedes any previous correspondence concerning the agent for this project.
NOTICE: This authorization, for liability and professional courtesy reasons, is valid only for government officials to
enter the property when accompanied by The John R. McAdams Company, Inc. staff.
Scott Underwood
Print Contractor Purchaser
5�ett_ad �..�e2
Signature
7-2-19
Date
creating experiences through experience 2905 Meridian Parkway, Durham, NC / 919. 361. 5000

J MCA DAMS AGENT AUTHORIZATION FORM
All Blanks To Be Filled In By The Current Property Owner
PIN:
9799346446 —
Property Owner Name:
BR Chapel Hill, LLC
Property Owner Address:
1345 Qverw@ eJ~ 4ti.p, nc �. s
•y1 'Fly Now Y.rV, (\JJ .,.
Property Owner
Phone/Email:
(04i0 - Zl8 -y LZ'A
IO . C ��-r-•
Project Name:
Park Apartments
Project Number:
WDF-17000
Project Manager:
Sean Gleason/Jennifer Burdette
Attn: Ross Sullivan
Attn: Karen Higgins
US Army Corps of Engineers NC Division of Water Resources
Raleigh Regulatory Field Office 401 & Buffer Permitting Branch
3331 Heritage Trade Drive, Suite 105 512 N Salisbury Street
Wake Forest, NC 27587 Raleigh, NC 27604
Re: WOTUS and Riparian Buffer Related Consulting and Permitting
To Whom It May Concern
I hereby designate and authorize The John R. McAdams Company, Inc. to act in 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.
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 NC Division of Water Resources
to enter upon the property herein described for the purpose of conducting on-site investigation and issuing a
determination associated with Water of the U.S_ subject to Federal jurisdiction under Section 404 of the Clean Water
Act/Section 10 of the River; and Harbors Act of 1899 and/or Waters of State and/or Riparian Buffer Rules.
This notification supersedes ;any previous correspondence concerning the agent for this project.
NOTICE: This authorization, for liability and professional courtesy reasons, is valid only for government officials to
enter the property when accompanied by The John R. McAdams Company, Inc. staff.
Print Property Owner hat e �.nti� S�Sngk t
_ 1S
Date
creating experiences through experience 2905 Meridian Parkway, Durham NC 1919. 361. 5000

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1. USGS; 7.5 MINUTE, QUAD, CHAPEL HILL, NORTH CAROLINA; 2016
2. LAT: 35.933195, LONG: -79.021569
0 1,000 2,000
FIGURE 1. USGS TOPOGRAPHIC VICINITY MAP Feet
PARK APARTMENTS 1 inch = 2,000 feet
CHAPEL HILL, ORANGE COUNTY, NC VERSION: 1
DATE: 4/30/2019
McADAMS JOB NO: WDF-17000
DRAWN BY: burdette
X:\Projects\WDF\WDF-17000\Storm\Natural Resources\GIS\WDF17000 Park Fig1USGS.mxd,4/30/20198:11:04AM,burdette

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NOTES:
1. NRCS; SOIL SURVEY SHEET 26 AND 30, ORANGE COUNTY, NC (1977)
2. LAT: 35.933195, LONG: -79.021569
0 833.5 1,667
FIGURE 2. NRCS SOIL SURVEY Feet
PARK APARTMENTS 1 inch = 1,667 feet
CHAPEL HILL, ORANGE COUNTY, NC VERSION: 1
DATE: 5/3/2019
McADAMS JOB NO: WDF-17000
DRAWN BY: burdette
X:\Projects\WDF\WDF-17000\Storm\Natural Resources\GIS\WDF17000 Park Fig2SS.mxd, 5/3/20196:40:13AM, burdette

ELLIOTT. RR
'J
IVMCADAMS
IN;
'kSET 1
FIGURE 4. OVERALL IMPACT MAP
PARK APARTMENTS
CHAPEL HILL, ORANGE COUNTY, NC
I♦,
LEGEND
Property line
-• Limits of disturbance
— - Stream
—50 -ft Jordan Riparian Buffer
Floodway
•••• 100 -yr floodplain
— Existing sanitary sewer
— - Existing road
• Existing power pole - to be removed
Existing concrete - to be removed
- Existing wetland
- Proposed wetland impact
® Proposed riprap
= Proposed storm drain
—Proposed wall
— Proposed building
— Existing 2 -ft contours — Proposed concrete
Proposed buffer impacts — Proposed trail
Grading and revegetation in Zone 2 (Exempt) — Proposed road
Removal of fill (Allowable) —Proposed 1 -ft contours
New stormwater outfall (Allowable)
0 62.5 125
N Feet
1 inch = 125 feet
VERSION: 1
DATE: 7/24/2019
JOB NO: WDF-17000
DRAWN BY: roth

Ni
Limits of disturbance
...... ,.
LEGEND •• ...
-- Limits of disturbance Proposed storm drain
Property line — Proposed wall
• 100 -yr floodplain — Proposed building
Floodway Proposed concrete
Existing 2 -ft contours Proposed 1 -ft contours
F-1 Existing wetland Proposed wetland impact
FIGURE 4 - INSET 1
PARK APARTMENTS
CHAPEL HILL, ORANGE COUNTY, NC
McADAMS
Proposed wetland impact
+/- 0.001 ac.
0 10 20
Feet
1 inch = 20 feet
VERSION: 1
DATE: 7/19/2019
JOB NO: WDF-17000
DRAWN BY: roth

C-5WDF-17000WDF17000-DM1ZNBHMA1"=40'DEMOLITION PLANCLIENTREVISIONSPROJECT NO.FILENAMECHECKED BYDRAWN BYSCALEDATE02. 28. 2019N0.DATEX:\Projects\WDF\WDF-17000\Land\Form District Permit\Current Drawings\WDF17000-DM1.dwg, 7/16/2019 1:28:10 PM, Bales, Nathan
The John R. McAdams Company, Inc.2905 Meridian ParkwayDurham, NC 27713phone [phone]fax [phone]license number: C-0293www.mcadamsco.comPARK APARTMENTS
FORM DISTRICT PERMIT
1250 EPHESUS CHURCH ROAD
CHAPEL HILL, NORTH CAROLINA, 27517SHEETPLAN INFORMATIONWOODFIELD INVESTMENTS11425 HORSEMAN'S TRAILRALEIGH, NC 27613PHONE: [phone]FINAL DRAWING - NOT RELEASED FOR CONSTRUCTIONWDF-17000105. 03. 2019PER CHAPEL HILL AND OWASA COMMENTS206. 20. 2019PER CHAPEL HILL AND OWASA COMMENTSGRAPHIC SCALE02040801 inch = 40 ft.EXISTINGEPHESUS CHURCH RD.(60' PUBLIC R/W)ALL CONSTRUCTION SHALL BE INACCORDANCE WITH THE CURRENT TOWNOF CHAPEL HILL AND OWASA DESIGN ANDCONSTRUCTION STANDARDSSEE SHEET C-3 FOR ALL PROJECT, SITE,GRADING, STORM DRAINAGE AND UTILITYNOTESTREE LEGEND
Percussive activity will be required during the demolition phase of the project. Existing buildings,
driveways, parking areas and utilities will be demolished before the proposed project is constructed.
Percussive activities such as blasting and jackhammering may be necessary to accomplish the demolition
of the existing infrastructure. The attached Demolition Plan shows where demolition activity will take
place within the project area. Percussive activities will occur only during the demolition phase of the
project and during daylight hours only.

PARK APARTMENTS

CHAPEL HILL, NC

NO-RISE CERTIFICATION

PROJECT NUMBER: WDF-17000
DESIGNED BY: J. SHINN, PE
K.GARCIA, PE

DATE: APRIL 2019

2905 MERIDIAN PARKWAY
DURHAM, NORTH CAROLINA 27713
NC LIC. # C-0293
8 PROPOSED CONDITIONS FLOODWAY
CROSS-SECTIONS AND PROFILE
6 DUPLICATE EFFECTIVE FLOODWAY
CROSS-SECTIONS AND PROFILE
7 CORRECTED EFFECTIVE FLOODWAY
CROSS-SECTIONS AND PROFILE
1 NARRATIVE
2 SUMMARY OF RESULTS
5 WORKING MAP AND AFFECTED CROSS-
SECTIONS
3 NO-RISE CERTIFICATION
4 EFFECTIVE MAPPING DATA
PARK APARTMENTS
WDF-17000

NARRATIVE

NARRATIVE > WDF-17000
2905 Meridian Parkway, Durham, NC 27713 / 919. 361. 5000 creating experiences through experience
PARK APARTMENTS
No-Rise Certification

GENERAL DESCRIPTION

Park Apartments is an approximately 13.66-acre proposed multi-family development off Ephesus Church Road in Chapel
Hill, North Carolina. The proposed project is an existing site, The Park at Chapel Hill Apartments, to be redeveloped.
Existing buildings, parking lots, utilities, and other supporting infrastructure will be removed and replaced with new
buildings, parking, and associated utilities and infrastructure. This report contains the Booker Creek floodplain/floodway
hydraulic calculations and No-Rise Certification associated with the proposed Park Apartments development.

Booker Creek is currently defined as a Special Flood Hazard Area (SFHA) with a defined regulatory floodway in the
effective flood data. Proposed as part of the Phase 1 Park Apartments development is the removal of an existing
building in the floodway and the construction of a dam embankment for a dry detention pond in the floodplain. Per the
request of the Town of Chapel Hill, the proposed redevelopment must be studied and to ensure that the dry detention
pond will not increase the base flood and associated floodway elevations along Booker Creek –mapped as Special Flood
Hazard Areas in the effective FIRM number 3710979900L (panel 9799) dated January 19, 2019.

The proposed redevelopment will be located out of the floodway of Booker Creek, however, work to remove an existing
building in the floodway is proposed. The dry detention pond associated with the project site is approximately 325 feet
downstream of Fordham Boulevard. The proposed redevelopment will not increase Base Flood Elevations or Floodway
Elevations on Booker Creek. As well, the proposed development will not change the floodway encroachment widths.
This report contains a No-Rise Certification for the proposed Park Apartments site and also includes: the duplicate
effective HEC-RAS model; a corrected effective HEC-RAS model, a proposed conditions HEC-RAS model; and supporting
information.

Note that part of the Park Apartments redevelopment includes the Elliot Road Extension project designed by Kimley
Horn and Associates, Inc. This report’s analysis incorporates the modeling data prepared for the No -Rise Certification
for Elliot Road Extension study prepared by Kimley Horn and Associates, Inc. dated January 16, 2019. Therefore, the
duplicate effective HEC-RAS model for Booker Creek from Elliot Road Extension No-Rise Certification was used to show
calibration between the effective elevations and the duplicate effective HEC-RAS model. To reduce the number of river
stations modeled and keep the model strictly to the vicinity of the project as is stated in the No-Rise Certification, the
duplicate effective, corrected effective, and proposed conditions HEC-RAS models were truncated.

From the duplicate effective model, the corrected effective model was generated. Within the corrected effective model
river station (RS) 40+00 was updated using survey and LIDAR data. Based on survey data, an obstruction was added at
(RS) 40+00 in the corrected effective model representing the existing building located in the floodway. Ineffective flow
areas assigned from the Elliot Road Extension No-Rise Certification Model were found to be acceptable based on the
HEC-RAS Hydraulic Reference Manual and thus remained the same.

For the proposed model, the following changes were made to simulate the proposed dam embankment and site layout
for the Park Apartments project. The dry detention pond is located at (RS) 40+00. The area from the toe of the dam
to the bottom of the dry pond will be maintained as determined by the town; therefore, a Manning’s n value of 0.03
(defined in the HEC-RAS Hydraulic Reference Manual as ‘short grass’) was chosen to represent the site’s maintained
stormwater facility. The obstruction representing the existing building was removed from (RS) 40+00 and ineffective
flow area was added at the top of the dam embankment in the proposed conditions to ensure flow was not accounted
for beyond the dam embankment (towards the proposed site). For reasons stated prior, ineffective flow areas assigned
from the Elliot Road Extension No-Rise Certification Model remained the same (except for RS 40+00).

NARRATIVE > WDF-17000
creating experiences through experience 2 of 2

CALCULATION METHODOLOGY

▪ HEC-RAS Version 4.1, by the U.S. Army Corps of Engineers, was used to determine duplicate effective, corrected
effective, and proposed conditions water surface elevations within Booker Creek. Since the proposed
development will require alteration within the regulatory floodplain/floodway, the affected river station (RS)
40+00 was revised to reflect the proposed topographic alterations within the project boundaries in the
proposed conditions HEC-RAS model.

▪ The duplicate effective, corrected effective, and proposed conditions HEC-RAS models were truncated to make
the model less cumbersome and confine the results to the vicinity of the project area.

▪ Ineffective flow areas assigned from the Elliot Road Extension No-Rise Certification Model remained the same
for the duplicate effective, corrected effective and proposed conditions models.

▪ All peak flow rates used were taken from the duplicate effective FEMA flood study model from the Elliot Road
Extension No Rise.

▪ In the corrected effective HEC-RAS model, river station 40+00 was updated with LIDAR and surveyed data and
an obstruction was added to model the existing building located in the floodway.

▪ In the proposed conditions HEC-RAS model, Manning’s roughness coefficients (“n” values) were assigned to the
river station 40+00 to reflect the onsite property boundary (i.e. maintained stormwater facility). A Manning’s
“n” value of 0.03 was selected for the dam of the dry detention pond to represent shorter grasses as the new
land cover condition in this maintained area. The obstruction representing the existing building was removed
from (RS) 40+00 and ineffective flow area was added at the top of the dam embankment in the proposed
conditions to ensure flow was not accounted for beyond the dam embankment (towards the proposed site).

All model information, outputs, and comparisons may be found in the appropriate section of this report. Additionally,
the electronic data files for all models are provided in this submittal.

DISCUSSION OF RESULTS

The proposed redevelopment depicted in this report associated with the Park Apartments project would create no
increase in Base Flood Elevations or Floodway Elevations along Booker Creek –mapped as Special Flood Hazard Areas.
As well, the proposed development will not change the floodway encroachment widths. This determination is made by
comparison of the proposed conditions and corrected effective hydraulic models in this report.

CONCLUSION

If the development built as proposed within this report, then the requirements set forth in the Town of Chapel Hill will
be met. However, modifications to the proposed development may require that this analysis be revised. Some
modifications that would require this analysis to be revised may include changes to proposed grading and/or site layout.

The above modifications may result in the assumptions within this report becoming invalid. The computations within
this report will need to be revisited if any of the above conditions become apparent as development of the proposed
site moves forward.
PARK APARTMENTS
WDF-17000

SUMMARY OF RESULTS

PARK APARTMENTS
WDF-17000
SUMMARY OF RESULTS K.GARCIA, PE
4/23/2019
100 Year 11228 282.6 282.6 0.0 29 282.6 282.6 0.0 4984 5013 29 0.0 0.0 0
100 Year 10952 276.8 277.3 0.5 37 276.8 277.3 0.5 4981 5018 37 0.0 0.0 0
100 Year 10524 270.8 271.0 0.2 49 270.8 271.0 0.3 4969 5018 49 0.0 0.0 0
100 Year 10024 270.7 271.3 0.6 392 270.7 271.3 0.6 4744 5136 392 0.0 0.0 0
100 Year 9692 ----270.1 270.8 0.7 4921 5225 304 ---
100 Year 9676.2 BR U ----270.1 270.8 0.7 4921 5225 304 ---
100 Year 9676.2 BR D ----270.0 270.7 0.7 4921 5225 304 ---
100 Year 9661 ----270.0 270.7 0.7 4921 5225 304 ---
100 Year 9524 269.5 270.2 0.7 278 269.5 270.2 0.7 4970 5248 278 0.0 0.0 0
100 Year 9024 267.5 268.2 0.7 68 267.5 268.2 0.7 4963 5031 68 0.0 0.0 0
100 Year 8589 265.5 266.2 0.7 90 265.5 266.2 0.6 4961 5051 90 0.0 0.0 0
100 Year 8024 264.9 265.8 0.9 318 264.9 265.7 0.8 4848 5165 318 0.0 0.0 0
100 Year 7524 264.8 265.8 1.0 494 264.8 265.6 0.8 4719 5213 494 0.0 0.0 0
100 Year 7024 264.7 265.7 1.0 373 264.7 265.5 0.8 4878 5251 373 0.0 0.0 0
100 Year 6734 ----264.4 265.3 0.9 4970 5032 62 ---
100 Year 6670 ----Culvert Culvert -------
100 Year 6607 ----263.6 264.5 0.9 4970 5032 62 ---
100 Year 6606 ----263.6 264.4 0.8 4685 5027 342 ---
100 Year 6269 ----Culvert Culvert -------
100 Year 5931 ----263.5 264.3 0.8 4685 5027 342 ---
100 Year 5455 262.7 263.3 0.6 150 262.7 263.3 0.6 4910 5060 150 0.0 0.0 0
100 Year 5024 262.4 262.8 0.4 142 262.3 262.8 0.5 4875 5017 142 -0.1 0.0 0
100 Year 4697 ----262.1 262.6 0.6 4956 5036 80 ---
100 Year 4645 ----Culvert Culvert -------
100 Year 4594 ----260.6 261.2 0.6 4956 5036 80 ---
100 Year 4453 ----259.9 260.5 0.6 4973 5028 55 ---
100 Year 4387 ----Culvert Culvert -------
100 Year 4322 ----258.3 259.3 1.0 4973 5028 55 ---
100 Year 4000 258.0 259.0 1.0 375 258.0 259.0 1.0 4900 5275 375 0.0 0.0 0
100 Year 3500 257.7 258.2 0.5 350 257.7 258.2 0.5 4925 5275 350 0.0 0.0 0
100 Year 3185 ----256.4 256.8 0.4 4944 5047 103 ---
100 Year 3157.2 BR U ----255.9 256.3 0.4 4944 5047 103 ---
100 Year 3157.2 BR D ----254.7 255.7 1.0 4944 5047 103 ---
100 Year 3129 ----254.9 255.8 0.9 4944 5047 103 ---
100 Year 2957 255.3 256.1 0.8 690 255.3 256.2 0.8 4730 5420 690 0.0 0.0 0
100 Year 2363 255.0 255.9 0.9 615 255.0 255.9 0.9 4550 5165 615 0.0 0.0 0
100 Year 1662 254.8 255.7 0.9 850 254.8 255.7 1.0 4700 5550 850 0.0 0.0 0
100 Year 921 254.6 255.6 1.0 825 254.6 255.6 1.0 4925 5750 825 0.0 0.0 0
Difference
1% Annual
Chance Water-
Surface Elevation
[ft NAVD 88]
Floodway Water-
Surface Elevation
[ft NAVD 88]
Floodway
Surcharge [ft]
1% Annual
Chance Water-
Surface Elevation
[ft NAVD 88]
Floodway
Water-
Surface
Elevation
[ft NAVD 88]
Non-
Encroachment
Width
TABLE 1: EFFECTIVE VS. DUPLICATE EFFECTIVE
Return
Period River Station
Effective Data Duplicate Effective
Right Bank Non-
Encroachment
Station [ft]
Non-
Encroachment
Width
1% Annual
Chance Water-
Surface Elevation
[ft NAVD 88]
Floodway
Water-Surface
Elevation
[ft NAVD 88]
Floodway
Surcharge [ft]
Left Bank Non-
Encroachment
Station [ft]
Non-
Encroachment
Width
PARK APARTMENTS
WDF-17000
SUMMARY OF RESULTS K.GARCIA, PE
4/23/2019
100 Year 11228 282.59 282.63 0.04 4984.10 5013 282.59 282.63 0.04 4984.10 5013 0.00 0.00 0.00 0
100 Year 10952 276.78 277.25 4981.00 5018 276.78 277.25 0.47 4981.00 5018 0.00 0.00 0.00 0
100 Year 10524 270.76 271.03 0.27 4969.00 5018 270.76 271.03 0.27 4969.00 5018 0.00 0.00 0.00 0
100 Year 10024 270.65 271.30 0.65 4743.87 5136 270.65 271.30 0.65 4743.87 5136 0.00 0.00 0.00 0
100 Year 9692 270.10 270.77 0.67 4921.38 5225 270.10 270.77 0.67 4921.38 5225 0.00 0.00 0.00 0
100 Year 9676.2 BR U 270.10 270.77 0.67 4921.38 5225 270.10 270.77 0.67 4921.38 5225 0.00 0.00 0.00 0
100 Year 9676.2 BR D 270.00 270.68 0.68 4921.38 5225 270.00 270.68 0.68 4921.38 5225 0.00 0.00 0.00 0
100 Year 9661 270.00 270.68 0.68 4921.38 5225 270.00 270.68 0.68 4921.38 5225 0.00 0.00 0.00 0
100 Year 9524 269.53 270.22 0.69 4970.00 5248 269.53 270.22 0.69 4970.00 5248 0.00 0.00 0.00 0
100 Year 9024 267.48 268.19 0.71 4963.32 5031 267.48 268.19 0.71 4963.32 5031 0.00 0.00 0.00 0
100 Year 8589 265.60 266.17 0.57 4960.63 5051 265.60 266.17 0.57 4960.63 5051 0.00 0.00 0.00 0
100 Year 8024 265.08 265.75 0.67 4847.79 5165 265.08 265.75 0.67 4847.79 5165 0.00 0.00 0.00 0
100 Year 7524 264.98 265.67 0.69 4719.02 5213 264.98 265.67 0.69 4719.02 5213 0.00 0.00 0.00 0
100 Year 7024 264.88 265.56 0.68 4877.62 5251 264.88 265.56 0.68 4877.62 5251 0.00 0.00 0.00 0
100 Year 6734 264.58 265.28 0.70 4970.00 5032 264.58 265.28 0.70 4970.00 5032 0.00 0.00 0.00 0
100 Year 6670 Culvert Culvert ---Culvert Culvert -------
100 Year 6607 263.82 264.54 0.72 4970.00 5032 263.82 264.54 0.72 4970.00 5032 0.00 0.00 0.00 0
100 Year 6606 263.77 264.42 0.65 4684.71 5027 263.77 264.42 0.65 4684.71 5027 0.00 0.00 0.00 0
100 Year 6269 Culvert Culvert ---Culvert Culvert -------
100 Year 5931 263.72 264.29 0.57 4877.80 5064 263.72 264.29 0.57 4877.80 5064 0.00 0.00 0.00 0
100 Year 5455 263.15 263.23 0.08 4912.70 5061 263.15 263.23 0.08 4912.70 5061 0.00 0.00 0.00 0
100 Year 5379 263.12 263.19 0.07 4913.30 5047 263.12 263.19 0.07 4913.30 5047 0.00 0.00 0.00 0
100 Year 5369 263.07 263.22 0.15 4912.60 5045 263.07 263.22 0.15 4912.60 5045 0.00 0.00 0.00 0
100 Year 5319 263.00 263.21 0.21 4909.00 5038 263.00 263.21 0.21 4909.00 5038 0.00 0.00 0.00 0
100 Year 5234 262.92 263.15 0.23 4904.60 5035 262.92 263.15 0.23 4904.60 5035 0.00 0.00 0.00 0
100 Year 5024 262.68 262.94 0.26 4881.90 5025 262.68 262.94 0.26 4881.90 5025 0.00 0.00 0.00 0
100 Year 4888 262.15 262.36 0.21 4962.50 5015 262.15 262.36 0.21 4962.50 5015 0.00 0.00 0.00 0
100 Year 4744 262.15 262.38 0.23 4957.10 5035 262.15 262.38 0.23 4957.10 5035 0.00 0.00 0.00 0
100 Year 4645 Culvert Culvert ---Culvert Culvert -------
100 Year 4568 260.04 260.27 0.23 4971.70 5055 260.04 260.27 0.23 4971.70 5055 0.00 0.00 0.00 0
100 Year 4516 260.07 260.30 0.23 4963.00 5052 260.07 260.30 0.23 4963.00 5052 0.00 0.00 0.00 0
100 Year 4387 Culvert Culvert ---Culvert Culvert -------
100 Year 4291 258.60 259.03 0.43 4977.40 5021 258.60 259.03 0.43 4977.40 5021 0.00 0.00 0.00 0
100 Year 4000 258.25 258.77 0.52 4900.00 5111 258.25 258.77 0.52 4900.00 5111 0.00 0.00 0.00 0
100 Year 3500 257.88 258.19 0.31 4925.00 5275 257.88 258.19 0.31 4925.00 5275 0.00 0.00 0.00 0
100 Year 3185 256.40 256.75 0.35 4944.00 5047 256.40 256.75 0.35 4944.00 5047 0.00 0.00 0.00 0
100 Year 3157.2 BR U 255.86 256.30 0.44 4944.00 5047 255.86 256.30 0.44 4944.00 5047 0.00 0.00 0.00 0
100 Year 3157.2 BR D 254.66 255.67 1.01 4944.00 5047 254.66 255.67 1.01 4944.00 5047 0.00 0.00 0.00 0
100 Year 3129 254.86 255.80 0.94 4944.00 5047 254.86 255.80 0.94 4944.00 5047 0.00 0.00 0.00 0
100 Year 2957 255.32 256.15 0.83 4730.00 5420 255.32 256.15 0.83 4730.00 5420 0.00 0.00 0.00 0
100 Year 2363 255.03 255.93 0.90 4550.00 5165 255.03 255.93 0.90 4550.00 5165 0.00 0.00 0.00 0
100 Year 1662 254.76 255.74 0.98 4700.00 5550 254.76 255.74 0.98 4700.00 5550 0.00 0.00 0.00 0
100 Year 921 254.63 255.63 1.00 4925 5750 254.63 255.63 1.00 4925 5750 0.00 0.00 0 0
*All Cross-Sections modified in this study are highted in green
Floodway
Surcharge [ft]
Floodway
Surcharge [ft]
Return
Period River Station
TABLE 2: CORRECTED EFFECTIVE VS. PROPOSED CONDITIONS
1% Annual
Chance Water-
Surface Elevation
[ft NAVD 88]
Left Bank Non-
Encroachment
Station [ft]
Right Bank Non-
Encroachment
Station [ft]
Corrected Effective Results
Floodway Water-
Surface Elevation
[ft NAVD 88]
Proposed Conditions
1% Annual
Chance Water-
Surface Elevation
[ft NAVD 88]
Floodway
Water-Surface
Elevation
[ft NAVD 88]
Left Bank Non-
Encroachment
Station [ft]
Right Bank Non-
Encroachment
Station [ft]
Difference
1% Annual
Chance Water-
Surface Elevation
[ft NAVD 88]
Left Bank Non-
Encroachment
Station [ft]
Right Bank Non-
Encroachment
Station [ft]
Floodway
Water-
Surface
Elevation
[ft NAVD 88]
PARK APARTMENTS
WDF-17000

NO-RISE CERTIFICATION

NO-RISE CERTIFICATION

Park Apartments Project, located in the Town of Chapel Hill, North Carolina has been studied
to ensure that the proposed improvements to be constructed in the vicinity of Booker Creek,
as depicted in this report, will not increase the base flood elevations for Booker Creek –
mapped as Special Flood Hazard Areas in the FIRM number 3710979900L (panel 9799) dated
January 19, 2019. The proposed development will consist of the removal of an existing
building in the floodway and the construction of a stormwater facility in the floodplain.

This letter is to certify that I am a duly qualified engineer licensed to practice in the State of
North Carolina. It is to further certify that the attached technical data supports the fact that
the proposed development, as depicted in this report, will not impact the 100-year flood
elevations (Base Flood Elevations) or the floodway elevations on Booker Creek at published
sections in the Flood Insurance Study for Orange County, effective November 17, 2017, and
will not impact the 100-year flood elevations (Base Flood Elevations) or the floodway
elevations at unpublished cross-sections in the vicinity of the proposed development. As well,
the proposed development will not change the floodway encroachment widths.

Date:______________ ___________________________
(Signature)

Seal: ___________________________
(Title)
PARK APARTMENTS
WDF-17000

EFFECTIVE MAPPING DATA

1990000 FEET 2000000 FEET
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42s 272:;9 " U`t`! : rf� ,+mss �,� tC_ 1 790000 FEET
790000 FEET 79°2'0"W 79°1'30"W - 79°1'0"W 79`0'30'W 79'0'0"W
1990000 FEET 2000000 FEET
ti
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1 6
FEMA'S CWPL1.-'J 114G rECHK AL PAMNEP
This digital Flood Insurance Rate Map (FIRM) was produced through a unique
cooperative partnership between the State of North Carolina and the Federal
Emergency Management Agency (FEMA). The State of North Carolina has
implemented a long term approach to floodplain management to decrease the
costs associated with flooding. This is demonstrated by the State's commitment
to map flood hazard areas at the local level. As a part of this effort, the State of
North Carolina has joined in a Cooperating Technical State agreement with
FEMA to produce and maintain this digital. FIRM.
FLOOD HAZARD INFORMATION NOTES TO USERS SCALE
SEE FIS REPORT FOR ZONE DESCRIPTIONS AND INDEX MAP
THE INFORMATION DEPICTED ON THIS MAP AND SUPPORTING
DOCUMENTATION ARE ALSO AVAILABLE IN DIGITAL FORMAT AT
HTTP://FRIS.NC.G0V/ FRES
SPECIAL FLOOD
HAZARD AREAS
OTHER AREAS OF
FLOOD HAZARD
OTHER
AREAS
GENERAL
STRUCTURES
OTHER
FEATURES
Without Base Flood Elevation (B'FE)
With BFE or Depth Zone AL, AO, AN, VE, AR
Regulatory Floodway
0.2% Annual Chance Flood Hazard, Areas
of 1% Annual Chance Flood with Average
Depth Less Than One Foot or With Drainage
Areas of Less Than One Square Mile zone x
Future Conditions 1% Annual
Chance Flood Hazard zone X
Area with Reduced Flood Risk due to Levee
See Notes Zone X
w
Areas Determined to be Outside the
9960
0.2% Annual Chance Floodplain zone x
-------------
Channel, Culvert, or Storm Sewer
Accredited or ProvisionaIlyAccred ited
---
--------
Levee, Dike, or Floodwall
9980
Non -accredited Levee, Dike, orFloodwall
BM5510 X
North Carolina Geodetic Survey bench mark
BM55100
National Geodetic Survey bench mark
EBM5510<8>
Contractor Est. NCFMP Survey bench mark
o1z 1'8 2—
Cross Sections with 1% Annual Chance
0809
Water Surface Elevation (B FE)
> - - - - - Coastal Transect
— - - - - - Coastal Transect Baseline
Profile Baseline
Hydrographic Feature
Limit of Study
Jurisdiction Boundary
For information and questions about this map, available products associated with this FIRM including
historic versions of this FIRM, how to order products or the National Flood Insurance Program in general,
please call the FEMA Map Information eXchange at 1 -877 -FEMA -MAP (1-877-336-2627) or visit the FEMA Map
Service Center website at http:l/msc.fema.gov. An accompanying Flood Insurance Study report, Letter of Map
Revision (LOMR) or Letter of Map Amendment (LOMA) revising portions of this panel, and digital versions of this
FIRM may be available. Visit the North Carolina Floodplain Mapping Program website at http:llwww.ncfloodmap
or contact the FEMA Map Service Center.
Communities annexing land on adjacent F9 RM panels must obtain a current copy of the adjacent panel as well as
the current FIRM Index. These may be ordered directly from the Map Service Center at the number listed above.
For community and countywide map dates refer to the Flood Insurance Study report for this jurisdiction
To determine if flood insurance is available in the community, contact your Insurance agent or call the National
Flood Insurance Program at 1-500-638-6620.
Flood Insurance Study (FIS) means an examination, evaluation, and determination of flood hazards, corresponding
water surface elevations, flood hazard risk zones, and other flood data in a community issued by the North Carolina
Floodplain Mapping Program (NCFMP). The Flood Insurance Study (FIS) is comprised of the following products
to e h r: th Di it I iFl Ha Da th Wat r rface El n R ter th i it II dv d
used g t e e g o vod rd ase, e e Su v as s, e d g a y de e,
autogenerated Flood Insurance Rate Map and the Flood Insurance Survey Report. A Flood Insurance Survey is a
compilation and presentation of flood risk data for specific watercourses, lakes, and coastal flood hazard areas within
a community. This report contains detailed flood elevation data, data tables and FIRM indices. When a flood study is
completed for the NFIP, the digital information, reports and maps are assembled into an FIS. Infomnation shown on
this FIRM is provided in digital format by the NCFMP. Base map information shown on this FIRM was provided in
digital format by the NCFMP. The source of this information can be determined from the metadata available in the
digital FLOOD database and in the Technical Support Data Notebook (ISDN).
ACCREDITED LEVEE NOTES TO USERS: If an accredited levee note appears on this panel check with your local
community to obtain more information, such as the estimated level of protection provided (which may exceed the
1 -percent -annual -chance level) and Emergency Action Plan, on the levee system(s) shown as providing protection.
To mitigate flood risk in residual risk areas, property owners and residents are encouraged to consider flood
insurance and floodproofing or other protective measures. For more information on flood insurance, interested
parties should visit the FEMA Website at http://www.fema.gov/business/nfiptindex.shtm.
PROVISIONALLY ACCREDITED LEVEE NOTES TO USERS: If a Provisionally Accredited Levee (PAL) note
appears on this panel, check with your local community to obtain more information, such as the estimated level of
protection provided (which may exceed the 1 -percent -annual -chance level) and Emergency Action Plan, on the
Levee system(s) shown as providing protection. To maintain accreditation, the levee owner or community is
required to submit the data and documentation necessary to comply with Section 65.10 of the NFIP regulations.
If the community or owner does not provide the necessary data and documentation or if the data and documentation
provided indicates the levee system does not comply with Section 65.10 requirements, FEMA will revise the flood
hazard and risk information for this area to reflect de -accreditation of the levee system. To mitigate flood risk in
residual risk areas, property owners and residents are encouraged to consider flood insurance and floodproofing
or other protective measures. For more information on flood insurance, interested parties should visit the FEMA
Website at http:/Iwww.fema.gov/business/nfiplindex.shtm.
LIMIT OF MODERATE WAVE ACTION NOTES TO USERS: For some coastal flooding zones the AE Zone
category has been divided by a Limit of Moderate Wave Action (LiMWA). The LiMWA represents the approximate
landward limit of the 1.5 -foot breaking wave. The effects of wave hazards between the VE Zone and the LiMWA
(or between the shoreline and the JMWA for areas where VE Zones are not identified) will be similar to, but less
severe than those in the VE Zone.
Limit of Moderate Wave Action (LiMWA)
COASTAL BARRIER RESOURCES SYSTEM (CBRS) MOTE
This map may include approximate boundaries of the CBRS for informational purposes only. Flood insurance is not
available within CBRS areas for structures that are newly built or substantially improved on or after the date(s)
indicated on the map. For more information see http:l/www.fws.gov/cbra, the FIS Report, or call the U.S. Fish
and Wildlife Service Customer Service Center at 1 -800 -344 -WILD.
CBRS Area Otherwise Protected Area
Map Projection:
North Carolina State Plane Projection Feet (Zone 3200)
Datum: NAD 1983 (Horizontal), NAVI] 1988 (Vertical)
1 inch = 500 feet 1:6,000
0 250 500 1,000
Feet
Meters
0 75 150 000
PANEL LOCATOR
Alamanc:.
9920
--
f
99401
9960
---
--------
--------
9980
9990090(1
0910-
9849
9859
9889
9899
0809
0819
r
9828
9848
9858
9888
9898
0808
;0818
i
I
9P27
9837
9847
9857
9867
9877
9887
9897
0807
i
0817
9,826
I
9836
9846
9856
9866
9876
9886
9896
0806+'
,
0805
I
9'825
9835
9845
9855
9865
9875
9885
9895
9824
i
9834
9844
9854
9864
9874
9884
9894
0804
f
0903
r
0802
'
r
9823
,
9833
9843
9853
9863
9873
9883
9893
98221
i
9832
9842
9852
9862
9872
9882
9892
I
9841
9851
9861
9871
9881
9891
,+0801
l 9826
I
I
9840
9854
9860
9870
9880
9890
+0800
;9729
I
9739
9749
9759
9769
9779
9789
I
-9728
9738
9748
9758
9768
9778
9788
i
9198
[972T-
9737
9767
9777
9787
9797
974-6—
_
-
---
-------
- (
9766
9776
9786
9796
E
ca
cc
loon
Cn
a
LL
i
cc
NORTH CAROLINA FLOODPLAIN MAPPING PROGRAM
NATIONAL FLOOD INSURANCE PROGRAM
FLOOD INSURANCE RATE MAP
NORTH CAROLINA
PANEL 9799
FEMA
Panel Contains:
COMMUNITY
CHAPEL HILL, TOWN OF
DURHAM, CITY OF
CID PANEL SUFFIX
370180 9799 L
370086 9799 L
VERSION NUMBER
2.3.3.2
MAP NUMBER
3710979900L
MAP REVISED
January 19, 2019

PARK APARTMENTS
WDF-17000

WORKING MAP AND AFFECTED
CROSS-SECTIONS

GRAPHIC SCALE
0 30 60 120
1 inch = 60 ft.
FEMA STREAM
CENTERLINE
FEMA 1% ANNUAL
CHANCE FLOODPLAIN
PROPOSED
DAM
EMBANKMENT
FEMA
FLOODWAY
FEMA 0.2% ANNUAL
CHANCE FLOODPLAIN
RS 4000
(EFFECTIVE)
FLOOD
WDF17000-FLOOD
JES
KEG
1" = 60'
BOOK
E
R

C
R
E
E
K
NO-RISE CERTIFICATION
WORK MAP
EXISTING
BUILDING TO BE
REMOVED (TYP.)
RS 4209.9EXISTINGFORDHAM BLVDPROPO
S
E
D
ELLIOT
T
R
D
RS 3500
(EFFECTIVE)
RS 3185
(EFFECTIVE)
RS 4515.9
RS 4568.4
RS 4744.2
RS 4788.6
RS 5024.2
(EFFECTIVE)
FEMA
FLOODWAYFEMA 1% ANNUAL
CHANCE FLOODPLAIN
PROPOSED PARK
APARTMENTS
PROJECT
PROPOSED ELLIOT ROAD
EXTENSION DESIGNED
BY KIMLEY HORN
NOTE: RIVER STATIONS UTILIZED FOR THIS ANALYSIS WERE FROM THE ELLIOT ROAD
EXTENSION NO-RISE CERTIFICATION PREPARED BY KIMLEY HORN AND ASSOCIATES,
INC. DATED JANUARY 16, 2019. NO RIVER STATIONS WERE REMOVED OR ADDED
FOR THIS ANALYSIS.
CLIENT
REVISIONS
PROJECT NO.
FILENAME
CHECKED BY
DRAWN BY
SCALE
DATE 02. 28. 2019
N0.DATE
1 05. 03. 2019 PER CHAPEL HILL COMMENTS
X:\Projects\WDF\WDF-17000\Storm\Flood Study\Current Drawings\WDF17000-FLOOD.dwg, 4/23/2019 2:53:39 PM, Garcia, KelliThe John R. McAdams Company, Inc.
2905 Meridian Parkway
Durham, NC 27713
phone [phone]
fax [phone]
license number: C-0293
www.mcadamsco.com
PARK APARTMENTSFORM DISTRICT PERMIT1250 EPHESUS CHURCH ROADCHAPEL HILL, NORTH CAROLINA, 27517SHEET
PLAN INFORMATION
WOODFIELD INVESTMENTS
11425 HORSEMAN'S TRAIL
RALEIGH, NC 27613
PHONE: [phone]
FINAL DRAWING - NOT RELEASED FOR CONSTRUCTION
WDF-17000
FEMA 0.2% ANNUAL
CHANCE FLOODPLAIN
04.23.2019
PARK APARTMENTS
WDF-17000

DUPLICATE EFFECTIVE FLOODWAY
CROSS-SECTIONS AND PROFILE

0 5000 10000 15000 20000 25000 30000
200
250
300
350
400
450
500
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
Main Channel Distance (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Booker Creek Reach - 1

4600 4800 5000 5200 5400 5600
245
250
255
260
265
270
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 4593.5 Downstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.2 .14 .2 .045 .2

4400 4600 4800 5000 5200 5400 5600 5800 6000 6200
248
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 4452.7 Upstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15 .14

4400 4600 4800 5000 5200 5400 5600 5800 6000 6200
245
250
255
260
265
270
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 4387.2 Culv HWY 15-501
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15 .14

4400 4600 4800 5000 5200 5400 5600 5800 6000 6200
248
250
252
254
256
258
260
262
264
266
268
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 4387.2 Culv HWY 15-501
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15 .14

4400 4600 4800 5000 5200 5400 5600 5800 6000 6200
248
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 4321.7 Downstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15 .14

4600 4800 5000 5200 5400 5600
248
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 4000.0 Cross Section Booker Creek 8.0
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Bank Sta
Encroachment
.15 .
0
4
5
.15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 3500.0 Cross Section Booker Creek 7.0
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Bank Sta
Encroachment
.15 .
0
4
5
.15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Duplicate Effective Floodway 4/10/2019
RS = 3185.2 Upstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.13 .15 .2
PARK APARTMENTS
WDF-17000

CORRECTED EFFECTIVE FLOODWAY
CROSS-SECTIONS AND PROFILE

0 2000 4000 6000 8000 10000 12000 14000 16000
240
260
280
300
320
340
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
Main Channel Distance (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Booker Creek Reach - 1

4800 4900 5000 5100 5200 5300
248
250
252
254
256
258
260
262
264
266
268
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 4568.4 Downstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.03 .12 .045 .12 .05 .03

4800 4900 5000 5100 5200 5300 5400 5500 5600
248
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 4515.9 Upstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.03 .
1
2
.045 .
1
2
.05 .12 .04 .12 .05

4800 4900 5000 5100 5200 5300 5400 5500 5600
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 4387.2 Culv HWY 15-501
Station (ft)Elevation (ft)Legend
WS 100-Year
WS 100-Year fw
Ground
Ineff
Bank Sta
Encroachment
.03 .
1
2
.045 .
1
2
.05 .12 .04 .12 .05

4400 4600 4800 5000 5200 5400 5600 5800
248
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 4387.2 Culv HWY 15-501
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 4290.9 Downstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .03 .
1
5
.
0
4
5
.15

4700 4800 4900 5000 5100 5200 5300 5400 5500
245
250
255
260
265
270
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 4000.0 Cross Section Booker Creek 8.0
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .045 .15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 3500.0 Cross Section Booker Creek 7.0
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Existing Conditions Floodway 4/10/2019
RS = 3185.2 Upstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.13 .15 .2
PARK APARTMENTS
WDF-17000

PROPOSED CONDITIONS FLOODWAY
CROSS-SECTIONS AND PROFILE

0 2000 4000 6000 8000 10000 12000 14000 16000
240
260
280
300
320
340
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
Main Channel Distance (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Booker Creek Reach - 1

4800 4900 5000 5100 5200 5300
248
250
252
254
256
258
260
262
264
266
268
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 4568.4 Downstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.03 .12 .045 .12 .05 .03

4800 4900 5000 5100 5200 5300 5400 5500 5600
248
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 4515.9 Upstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.03 .
1
2
.045 .
1
2
.05 .12 .04 .12 .05

4800 4900 5000 5100 5200 5300 5400 5500 5600
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 4387.2 Culv HWY 15-501
Station (ft)Elevation (ft)Legend
WS 100-Year
WS 100-Year fw
Ground
Ineff
Bank Sta
Encroachment
.03 .
1
2
.045 .
1
2
.05 .12 .04 .12 .05

4400 4600 4800 5000 5200 5400 5600 5800
248
250
252
254
256
258
260
262
264
266
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 4387.2 Culv HWY 15-501
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 4290.9 Downstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .03 .
1
5
.
0
4
5
.15

4700 4800 4900 5000 5100 5200 5300 5400 5500
245
250
255
260
265
270
275
280
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 4000.0 Cross Section Booker Creek 8.0
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .03 .15 .045 .15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 3500.0 Cross Section Booker Creek 7.0
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.15

4400 4600 4800 5000 5200 5400 5600 5800
245
250
255
260
265
270
Booker CreekADJ Plan: Proposed Conditions Floodway 4/23/2019
RS = 3185.2 Upstream Section of Bridge/Culvert/Weir
Station (ft)Elevation (ft)Legend
WS 100-Year fw
WS 100-Year
Ground
Ineff
Bank Sta
Encroachment
.15 .
0
4
5
.13 .15 .2
CULTURAL RESOURCE ENVIRONMENTAL REVIEW > WDF-17000
creating experiences through experience 1 of 1
July 10, 2019
Ms. Renee Gledhill-Earley
State Historic Preservation Office
4617 Mail Service Center
Raleigh, North Carolina 27699-4617

Re: Cultural Resource Environmental Review
Park Apartments
Chapel Hill, Orange County, NC

Dear Ms. Gledhill-Earley:

McAdams has been contracted to conduct a site investigation for the proposed Park Apartments site located on the
southwest side of Ephesus Church Road east of North Fordham Boulevard in Chapel Hill, Wake County, North Carolina
(hereinafter referred to as the subject property). It consists of one 13.66-acre parcel owned BR Chapel Hill LLC (Orange
County PIN 9799346446). The subject property is shown on the attached U.S. Geological Survey (USGS) 7.5-minute
Chapel Hill, NC topographic quadrangle (Figure 1). The subject property vicinity contains residential developments
and commercial buildings with forested land interspersed.The proposed project is a residential development
consisting of approximately 417 multi-family units in multiple buildings and the associated amenity areas, utilities and
stormwater management facilities. The extension of Elliott Road through the site will be designed by Kimley-Horn &
Associates for the Town of Chapel Hill.

McAdams conducted a review of SHPO’s records for the subject property and no structures were identified within
0.25-mile of the subject property.

Figure 2 depicts the subject property on an aerial photograph of the area. The property contains primarily residential
apartment buildings with the associated infrastructure and approximately two acres of wooded land. Based on a field
reconnaissance of the project area, there are no historical structures within the project area. The attached Appendix
A includes pictures of the structures that are present on the subject property.

We are requesting consultation regarding the project’s impact to historic properties. If you should have any questions
or require additional information, please do not hesitate to contact me at [phone].

Sincerely,
MCADAMS

Kelly Roth
Environmental Consultant II, Water Resources

Attachments:
Figure 1 USGS Exhibit
Figure 2 Existing Conditions Exhibit
0 2,0001,000 Feet1 inch = 2,000 feet
$
FIGURE 1. USGS TOPOGRAPHIC VICINITY MAPPARK APARTMENTSCHAPEL HILL, ORANGE COUNTY, NC
NOTES:1. USGS; 7.5 MINUTE, QUAD, CHAPEL HILL, NORTH CAROLINA; 20162. LAT: 35.933195, LONG: -79.021569
4/30/2019
burdetteWDF-17000DATE:JOB NO:DRAWN BY:
X:\Projects\WDF\WDF-17000\Storm\Natural Resources\GIS\WDF17000_Park_Fig1USGS.mxd, 4/30/2019 8:11:04 AM, burdette
PROJECT AREA
1VERSION:
NC Center for Geographic Information & Analysis
0 200100Feet1 inch equals 200 feet
$
LEGEND
Property line
FIGURE 2. EXISTING CONDITIONS EXHIBITPARK APARTMENTSCHAPEL HILL, ORANGE COUNTY, NC 7/10/2019
pierzgaWDF-17000DATE:JOB NO:DRAWN BY:
X:\Projects\WDF\WDF-17000\Storm\Natural Resources\GIS\WDF17000_site map.mxd, 7/10/2019 3:52:30 PM, pierzga
1VERSION: