HomeMy WebLinkAboutFlatiron Forest
115 MacKenan Drive | Cary, NC 27511
t: 910.469.3340 | www.withersravenel.com | License No. F-1479
Asheville | Cary | Charlotte | Greensboro | Lumberton | Pittsboro | Raleigh | Southern Pines | Wilmington
January 11, 2024
US Army Corps of Engineers NC-Division of Water Resources
Raleigh Regulatory Field Office 401 & Buffer Permitting Unit
Ms. Rachel Capito Ms. Stephanie Goss
3331 Heritage Trade Drive 1617 Mail Service Center
Suite 105 Raleigh, NC 27699
Wake Forest, NC 27587
Re: Flatiron Forest - NWP 29 & 401 PCN Submittal for Revised Impacts
Pittsboro, Chatham County
USACE AID #SAW-2022-01047
NCDWR #20221471v2
WR Project #02220132.00
Dear Ms. Capito and Ms. Goss,
WithersRavenel (WR) applied for 404 and 401 permits for the proposed project on 10/21/2022.
An NWP 29 (USACE ID SAW-2022-01047) and 401 WQC (DWR#20221471v1) dated
12/21/2022 and 12/19/2022 respectively were issued for the project.
After the original permits were issued, Chatham County required modifications to the design of
the road crossings during the Construction Drawings review and approval. Specifically, the
comments from the county resulted in a shift of the extent of the Copley Road culvert crossing
resulting in a revised vertical road profile. Additionally, DOT comments regarding headwall height
to extend the culverts to tie in correctly were required. This revision resulted in changes to the
impact footprints and an overall increase in stream impacts as well as changes to wetland impacts.
WR again applied to modify the 404 and 401 permits on 4/26/2023. Modified permits were issued
on 6/9/2023 and 6/2/2023 respectively. Previous approvals have been included as attachments.
Previously permitted impacts proposed a double culvert crossing at Copley Court. While WR’s
calculations showed this design to be adequate, NCDOT suggested that the amount of flow
anticipated at the Copley Court crossing could result in a failure between the double culverts.
NCDOT’s Hydraulic Unit reviewer and Assistant District Supervisor are now requiring an
aluminum box culvert at this crossing. Chatham County has also required the addition of Rip Rap
Toe Protection at the Copley Court Crossing. No additional impacts are proposed for the toe
protection. The required DOT changes from the previous submittal have resulted in an increase in
permanent stream impacts of 2 lf (-4 lf of permanent functional loss; +6 lf of no functional loss).
Permanent wetland impacts have decreased slightly (+17 sf). The decrease in wetland impact
acreage is not large enough to be inputted on the PCN form. Therefore, we are submitting this
application for approval of the revised impacts under an NWP 29.
On behalf of RBV 1525, LLC, we are requesting authorization from the USACE to use NWP 29, as
well as requesting a 401 WQC from NC DWR for the revised impacts in the table below. Revisions
to the buffer impacts will be permitted through Chatham County as the designated local authority.
Flatiron Forest
Pittsboro, Chatham Co.
NWP 29 PCN Submittal for Revised Impacts
Page 2 of 6
The proposed total permanent impacts to jurisdictional waters are 0.105 acres and therefore the
project is eligible for authorization under an NWP 29:
The proposed project consists of the construction of a 29-lot single-family residential subdivision
and associated infrastructure (roads, sidewalks, open recreational space, utilities, stormwater
management, etc.).
The proposed Flatiron Forest subdivision consists of a ±42-acre site located on two parcels (Parcel
#s: 2037 & 2014) located at 678 Hamlets Chapel Road in Pittsboro, Chatham County (Lat:
35.796308°N; -79.129349°W).
The project is in the Cape Fear River basin (HUC: 03030002) and onsite waters drain to the Haw
River. The Water Quality Classification for the Haw River is: WS-IV;NSW,CA and the Stream Index
Number is: 16-(28.75).
Proposed Project
The purpose of the proposed project is to construct a single-family residential subdivision to meet
the existing and growing demand for residential housing in Chatham County.
The project consists of the following:
• 29 single family home lots
• Construction of infrastructure (roads, greenways, open space, utilities, stormwater
management, etc.)
The proposed design for the internal roads will result in one stream crossing. Copley Court will
cross Stream 2 perpendicularly with a 10.5’x5.58’ aluminum box culvert. Riprap dissipators will be
Revised Proposed Impact Table
Feature Type of Impact Impact Area
LF SF AC
Stream Permanent (Functional Loss) 74 - 0.004
Stream Permanent (No Functional Loss) 32 - 0.002
Stream Temporary 79 - 0.004
Stream Totals 185 - 0.01
Wetland Permanent - 4,293 0.099
Wetland Temporary - 1,545 0.035
Wetland Totals - 5,838 0.134
Revised Proposed Permanent Impact Table
Type of Impact Impact Area
LF AC
Wetland – Permanent - 0.099
Stream – Permanent (Functional Loss) 74 0.004
Stream – Permanent (No Functional Loss) 32 0.002
Total 106 0.105
Flatiron Forest
Pittsboro, Chatham Co.
NWP 29 PCN Submittal for Revised Impacts
Page 3 of 6
constructed below the culverts to dissipate flow velocity to prevent erosion and sedimentation of
the stream.
A second road, Flatiron Forest Drive will cross a narrow area of Wetland C with a culvert. A SCM
device is proposed at the other end of the proposed culvert.
Project History
WithersRavenel conducted a delineation of the wetlands and streams in March 2022 which were
field verified by the USACE and issued a Preliminary Jurisdictional Determination (SAW-2022-
01047) on July 6, 2022. The USACE PJD and Approved Delineation Exhibit have been provided
as attachments.
SHPO issued a review letter on April 27, 2022, which has been provided as an attachment. SHPO
had no comments on the project as proposed.
Buffer subjectivity was verified by Chatham County on June 2, 2022. Chatham County Watershed
Department issued a Buffer Determination Letter on June 8, 2022, which has been provided as an
attachment.
WithersRavenel completed a survey for federally listed species in March 2022 and determined
that the proposed project would have No Effect on federally listed species or their critical habitat.
The results of the survey were submitted to the USFWS for review. In an email dated 6/16/2022,
John Ellis with the USFWS stated that the Service concurred with our determinations, which were
No Effect. A copy of the USFWS concurrence email, as well as the USFWS Concurrence Request
has been provided as an attachment.
WR applied for 404 and 401 permits for the proposed project on 10/21/2022. An NWP 29 and
401 WQC dated 12/21/2022 and 12/19/2022 respectively were issued for the project.
WR applied to modify the 404 and 401 permits due to Chatham County requiring a shift of the
extent of the Copley Road culvert crossing resulting in a revised vertical road profile. Additionally,
DOT comments regarding headwall height to extend the culverts to tie in correctly were required.
On 4/26/2023 WR submitted for modifications to the existing 404 and 401 permits. Modified
permits were issued on 6/9/2023 and 6/2/2023 respectively.
Proposed Impacts
The proposed impacts consist of:
• 74 lf (0.004 acres) of permanent functional loss stream impacts
• 32 lf (0.002 acres) of permanent no functional loss stream impacts
• 79 lf (0.002 acres) of temporary stream impacts
• 0.099 acres of permanent wetland impacts
• 0.035 acres of temporary wetland impacts
The required DOT changes from the previous submittal have resulted in an increase in permanent
stream impacts of 2 lf (-4 lf of permanent functional loss; +6 lf of no functional loss). Permanent
wetland impacts have decreased slightly (+17 sf). The decrease in wetland impact acreage is not
large enough to be inputted on the PCN form. All proposed permanent stream impacts are
necessary for the installation of the Copley Court Road crossing over Stream 2 (intermittent). The
proposed Copley Court Road crossing is necessary to access the developable uplands in the
western portion of the site. Copley Court has been designed to cross Stream 2 perpendicularly
Flatiron Forest
Pittsboro, Chatham Co.
NWP 29 PCN Submittal for Revised Impacts
Page 4 of 6
using a 10.5’x5.58’ aluminum box culvert. The culvert will be buried 12” below the stream bed. 74
linear feet of permanent stream impacts (Impact S2) with functional loss are proposed for the
crossing. Additionally, 0.079 acres of permanent wetland impacts (Impact W2) are proposed at
this crossing. The proposed crossing features DOT standard headwalls. A riprap dissipator will be
installed below the culverts to prevent erosion and sedimentation of downstream waters which
will result in 32 linear feet of permanent stream impacts with no functional loss (Impact S3). The
riprap will be installed by burying the riprap such that the top of the riprap matches the pre-
construction contours of the natural stream bed, allowing for the passage of aquatic life and
preventing a loss of function of this section of stream channel. Note that due to the change in
culvert design, the rip rap dissipator is slightly larger than previously permitted.
During construction of the culverted road crossing, work will be completed “in the dry” by
constructing temporary coffer dams upstream and downstream of the culverts within the impact
areas and pumping flow around the construction area. 79 linear feet of temporary stream impacts
(Impacts S1, S4a, S4b) and 0.034 acres of temporary wetland impacts (Impacts W1 & W3) are
proposed for construction of the crossing.
Permanent impacts to Wetland C of 0.020 acres are proposed for a crossing of the wetland to
construct Flatiron Forest Drive necessary to access developable uplands in the northern portion
of the site. A narrow portion of Wetland C (Impact W4) is proposed to be permanently impacted
by a culverted road crossing. No changes to the Flatiron Forest Drive crossing is being proposed.
The culvert under Flatiron Forest Drive is designed to convey water from Wetland C to SCM 1
(wet detention). Hydrologic connectivity between Wetlands C and B will be maintained through
this culvert and SCM 1. In a pre-application meeting with the USACE, on October 6, 2022, it was
determined that this was an acceptable way to maintain connectivity between Wetland C and
downstream waters since SCM 1 is a wet pond that will have regular discharge through the low
flow orifice. No impacts to Wetland C will occur from construction of SCM 1.
Upon completion of construction, all temporarily impacted streams will be restored to pre-
construction contours and the banks will be stabilized using a biodegradable matting and seeded
with a riparian seed mix. No matting will be placed on the stream beds. Additionally, all
temporarily impacted wetlands will be restored to natural grade and seeded with a wetland seed
mix to provide temporary stabilization until natural revegetation permanently stabilizes these
areas.
Avoidance and Minimization
Prior to site plan design, the applicant requested that a detailed delineation be conducted so that
impacts to wetlands and “waters” could be minimized.
Proposed permanent impacts for construction of the subdivision and infrastructure have been
minimized to only those necessary for construction of two road crossings to access developable
uplands within the site. There are no impacts proposed for construction lots, utilities, stormwater
management, or greenways. All road crossings have been designed to cross wetlands and stream
perpendicularly at the narrowest points to minimize impacts.
Impacts to Stream 2 are unavoidable because the only way to access developable uplands in the
western portion of the site is to cross the stream. It was deemed not feasible to choose an alternate
location for Copley Court to avoid wetland impacts as this would have required the road be
positioned at the northern end of the site near the cul-de-sac of Flatiron Forest Drive. While this
Flatiron Forest
Pittsboro, Chatham Co.
NWP 29 PCN Submittal for Revised Impacts
Page 5 of 6
location would have avoided wetland impacts, it is not a logical location and would have resulted
in the loss of lots thereby making the project unfeasible. A riprap dissipator will be constructed at
the Copley Court crossing such that the riprap will be installed by burying to match the pre-
construction contours of the natural stream bed, allowing for the passage of aquatic life, and
preventing a loss of function. DOT standard headwalls are proposed at the crossing to reduce fill
slope helping to minimize stream impacts.
Proposed permanent wetland impacts for the culverted crossing of Wetland C by Flatiron Forest
Drive were primarily driven by the placement of SCM 1 in a low area between Wetlands C and D
for the gravity driven stormwater drainage for the roadway. Hydrologic connectivity between
Wetland C and downstream waters will be maintained through the culvert and SCM 1.
Upon completion of construction, all temporarily impacted streams will be restored to pre-
construction conditions and grades, and temporarily stabilized with biodegradable matting and
seeded with a riparian seed mix. No matting will be placed on the stream bed.
Access during construction will occur within uplands. Additionally, sediment and erosion control
measures will be installed prior to construction.
Mitigation
Stream Mitigation
Previous approvals did not require stream mitigation. The current proposal will result in 0.004
acres (78 lf) of permanent stream impacts with functional loss. Because the proposed total
permanent stream impacts with functional loss are below 0.02 acres, the applicant does not
propose compensatory mitigation for permanent stream impacts.
Wetland Mitigation
Previous approvals did not require wetland mitigation. The current proposal will result in 0.099
acres of permanent wetland impacts. Because the proposed total permanent wetland impacts are
below 0.1 acres, the applicant does not propose to provide compensatory mitigation for
permanent wetland impacts.
Stormwater Management Plan
The stormwater management plan consists of two constructed stormwater wetland SCMs which
provide a minimum of 30% nitrogen removal and therefore diffuse flow is not required. The
stormwater management plan will be reviewed and approved by Chatham County as the certified
local municipality.
Please feel free to contact me if you have questions or require additional information to complete
your review.
Sincerely,
WithersRavenel
Rick Trone
Environmental Scientist
Flatiron Forest
Pittsboro, Chatham Co.
NWP 29 PCN Submittal for Revised Impacts
Page 6 of 6
Attachments:
• PCN Form
• Agent Authorization Forms
• Aerial Exhibit
• USGS Quads
• Chatham County Soil Survey
• Parcel/Property Owner Info
• Approved Delineation Exhibit
• USACE Preliminary Jurisdictional Determination
• USACE NWP 29 (12/21/2022)
• NCDWR 401 WQC Excerpt (12/16/2022)
• USACE NWP 29 (6/9/2023)
• NCDWR 401 WQC Excerpt (6/2/2023)
• USFWS Concurrence Email & WR Concurrence Request
• USFWS IPaC Resource List (1/12/2024)
• NCNHP Project Report (1/12/2024)
• SHPO Comment Letter
• Chatham County Buffer Determination Letter
• Preliminary Site Plan
• Revised Impact Exhibits
WithersRavenel
Our People. Your Success.
PCN FORM
WithersRavenel
Our People. Your Success.
AGENT
AUTHORIZATION
FORMS
Docuslgn Envelope lD: CA6D881941084504-844A-BFD51496C858
RE±ovyp!eoEppy:ups:cgs¥vem@[
AUTHORIZATION FOR PROPERTY ACCESS
The undersigned owner(s), Margaret Browning. do(es) hereby authorize WithersRavenel, lnc. to access ±42=
acres of the ±91.39-acre parcel, Chatham Co. PIN: 9764-00-14-6789, located directly north of 624
Hamlets Chapel Road, in Pittsboro, NC for the purpose of environmental regulatory agency review (US
Army Corps of Engineers, NC Division of Water Quality, NC Divi.sion of Coastal Management, US Fish and
Wildlife Service, local Municipalities, etc.) and approvals (i.e. wetland delineation, stream/buffer
determination, environmental permitting, etc.) at the request of the contract purchaser.
This authorization does not bind the current property owner(s) to financial responsibility for services
rendered on the subject property by WithersRavenel, Inc.
This agreement shall continue in effect until completion/termination of the purchase contract for the subject
property.
Contract Purchaser's Agent Info:
WithersRavenel, lnc.
115 MacKenan Drive
Cary, NC 27511
Tel. (919)-469-3340
Date:4/T|/rfJR|
Signature of Owner(s):
Name - Print
Mailing Address
City State Zip
115 i`vlLicKcn`)ii D! (vc I Ctil y, NC 27511
t: 919.4/]9.3`340 | {` 919 467 6008, I ww\z\, withtlri-,r<3veiiel corri I L!cerise No. F-1479
Asheville I C.]ry | C)iarlotie I r]t-(`ensboi.`) i L`Jmberton i ir`i(tsbo).i> ; R`il€`igh I Soijthem P;nes I Wi.iming[()n
WithersRavenel
Our People. Your Success.
AERIAL EXHIBIT
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WithersRavenel
Our People. Your Success.
USGS QUADS
PROJECT LOCATION
FLATIRON FOREST USGS QUAD (2019) - BYNUM
PITTSBORO CHATHAM COUNTY NORTH CAROLINA
1 inch = 2000 ft.
GRAPHIC SCALE
0 1000 2000
WithersRavenel
Engineers | Planners | Surveyors
PROJECT BOUNDARY
FLATIRON FOREST USGS QUAD (2019) - BYNUM
PITTSBORO CHATHAM COUNTY NORTH CAROLINA
1 inch = 400 ft.
GRAPHIC SCALE
0 200 400
WithersRavenel
Engineers | Planners | Surveyors
WithersRavenel
Our People. Your Success.
CHATHAM COUNTY SOIL SURVEY
PROJECT BOUNDARY
FLATIRON FOREST CHATHAM CO. SOIL SURVEY (2006)
PITTSBORO CHATHAM COUNTY NORTH CAROLINA
1 inch = 400 ft.
GRAPHIC SCALE
0 200 400
WithersRavenel
Engineers | Planners | SurveyorsSHEET 4
WithersRavenel
Our People. Your Success.
PARCEL/OWNER EXHIBIT
CHATHAM CO PARCEL #2037
CHATHAM LAND & TIMBER MGMT LLC
& MARGARET BROWNING
981 OLD GRAHAM ROAD
PITTSBORO, NC 27312
±91.39 ACRES
BOOK: 0735; PAGE: 0341
PROJECT BOUNDARY
±42-ACRES
CHATHAM CO PARCEL #2014
CHATHAM LAND & TIMBER MGMT LLC &
MARGARET BROWNING
981 OLD GRAHAM ROAD
PITTSBORO, NC 27312
±0.69 ACRES
BOOK: 0942; PAGE: 0697
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WithersRavenel
Our People. Your Success.
APPROVED DELINEATION EXHIBIT
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REVIEW AREA
WETLAND A
SUBJECT TO BUFFERS
WETLAND B
SUBJECT TO BUFFERS
WETLAND C
SUBJECT OT BUFFERS
WETLAND D
SUBJECT TO BUFFERS
WETLAND E
SUBJECT TO BUFFERS
WETLAND F
SUBJECT TO BUFFERS
STREAM 2
PERENNIAL
SUBJECT TO BUFFERS
STREAM 3
INTERMITENT
SUBJECT TO BUFFERS
STREAM 1
EPHEMERAL
SUBJECT TO BUFFERS
100' CHATHAM CO.
RIPARIAN BUFFER
50' CHATHAM CO.
RIPARIAN BUFFER
30' CHATHAM CO.
RIPARIAN BUFFER
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NOTES:
1) WETLAND/BUFFER DELINEATION PERFORMED BY WR ON 03/30/2022.
2) WETLAND/STREAM/BUFFER LOCATIONS ARE APPROXIMATE, BASED ON GPS LOCATION, CHATHAM COUNTY GIS
DATA, AND TOPOGRAPHIC INTERPRETATION.
3) BUFFER SUBJECTIVITY BASED ON CHATHAM COUNTY WATERSHED PROTECTION ORDINANCE. BUFFER
SUBJECTIVITY WAS VERIFIED BY CHATHAM COUNTY ON 06/08/2022.
4) THIS PROPERTY MAY BE SUBJECT TO ADDITIONAL MUNICIPAL/ZONING BUFFERS WHICH SHOULD BE VERIFIED
PRIOR TO DESIGN.
5) DELINEATION AND JURISDICTIONAL STATUS WAS VERIFIED BY USACE ON 07/06/2022 (SAW-2022-01047).
WithersRavenel
Our People. Your Success.
USACE PRELIMINARY JURISDICTIONAL
DETERMINATION
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. SAW-2022-01047 County: Chatham U.S.G.S. Quad: NC-Bynum
NOTIFICATION OF JURISDICTIONAL DETERMINATION
Requestor: WithersRavenel
Alyssa Ricci
Address: 115 Mackenen Drive
Cary, NC 27511
Telephone Number: 919-215-8619
E-mail: aricci@withersravenel.com
Size (acres) 42 Nearest Town Pittsboro
Nearest Waterway Haw River River Basin Cape Fear
USGS HUC 03030002 Coordinates Latitude: 35.7936
Longitude: -79.1293
Location description: The project site is approximately 42 acres located adjacent to Hamlets Chapel Road, near the town of
Pittsboro, Chatham County, North Carolina.
Indicate Which of the Following Apply:
A. Preliminary Determination
There appear to be waters, including wetlands on the above described project area/property, that may be subject to Section 404
of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403). The
waters, including wetlands have been delineated, and the delineation has been verified by the Corps to be sufficiently accurate
and reliable. The approximate boundaries of these waters are shown on the enclosed delineation map dated 5/5/2022. Therefore
this preliminary jurisdiction determination may be used in the permit evaluation process, including determining compensatory
mitigation. For purposes of computation of impacts, compensatory mitigation requirements, and other resource protection
measures, a permit decision made on the basis of a preliminary JD will treat all waters and wetlands that would be affected in any
way by the permitted activity on the site as if they are jurisdictional waters of the U.S. This preliminary determination is not an
appealable action under the Regulatory Program Administrative Appeal Process (Reference 33 CFR Part 331). However, you may
request an approved JD, which is an appealable action, by contacting the Corps district for further instruction.
There appear to be waters, including wetlands on the above described project area/property, that may be subject to Section 404
of the Clean Water Act (CWA)(33 USC § 1344) and/or Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403).
However, since the waters, including wetlands have not been properly delineated, this preliminary jurisdiction determination
may not be used in the permit evaluation process. Without a verified wetland delineation, this preliminary determination is
merely an effective presumption of CWA/RHA jurisdiction over all of the waters, including wetlands at the project area, which
is not sufficiently accurate and reliable to support an enforceable permit decision. We recommend that you have the waters,
including wetlands on your project area/property delineated. As the Corps may not be able to accomplish this wetland
delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that can be verified by the Corps.
B. Approved Determination
There are Navigable Waters of the United States within the above described project area/property subject to the permit
requirements of Section 10 of the Rivers and Harbors Act (RHA) (33 USC § 403) and Section 404 of the Clean Water Act
(CWA)(33 USC § 1344). Unless there is a change in law or our published regulations, this determination may be relied upon for
a period not to exceed five years from the date of this notification.
There are waters, including wetlandson the above described project area/property subject to the permit requirements of Section
404 of the Clean Water Act (CWA) (33 USC § 1344). Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
We recommend you have the waters, including wetlands on your project area/property delineated. As the Corps may not be
able to accomplish this wetland delineation in a timely manner, you may wish to obtain a consultant to conduct a delineation that
can be verified by the Corps.
The waters, including wetlands on your project area/property have been delineated and the delineation has been verified by
the Corps. The approximate boundaries of these waters are shown on the enclosed delineation map dated DATE. We strongly
suggest you have this delineation surveyed. Upon completion, this survey should be reviewed and verified by the Corps. Once
SAW-2022-01047
verified, this survey will provide an accurate depiction of all areas subject to CWA jurisdiction on your property which, provided
there is no change in the law or our published regulations, may be relied upon for a period not to exceed five years.
The waters, including wetlands have been delineated and surveyed and are accurately depicted on the plat signed by the
Corps Regulatory Official identified below onDATE. Unless there is a change in the law or our published regulations, this
determination may be relied upon for a period not to exceed five years from the date of this notification.
There are no waters of the U.S., to include wetlands, present on the above described project area/property which are subject to the
permit requirements of Section 404 of the Clean Water Act (33 USC 1344). Unless there is a change in the law or our published
regulations, this determination may be relied upon for a period not to exceed five years from the date of this notification.
The property is located in one of the 20 Coastal Counties subject to regulation under the Coastal Area Management Act (CAMA).
You should contact the Division of Coastal Management in Morehead City, NC, at (252) 808-2808 to determine their
requirements.
Placement of dredged or fill material within waters of the US, including wetlands, without a Department of the Army permit may
constitute a violation of Section 301 of the Clean Water Act (33 USC § 1311). Placement of dredged or fill material, construction or
placement of structures, or work within navigable waters of the United States without a Department of the Army permit may
constitute a violation of Sections 9 and/or 10 of the Rivers and Harbors Act (33 USC § 401 and/or 403). If you have any questions
regarding this determination and/or the Corps regulatory program, please contact James Lastinger at 919-554-4884 ext 32 or
James.C.Lastinger@usace.army.mil.
C. Basis For Determination: Basis For Determination: See the preliminary jurisdictional determination
form dated 07/06/2022.
D. Remarks:
E. Attention USDA Program Participants
This delineation/determination has been conducted to identify th lar site
identified in this request. The delineation/determination may not be valid for the wetland conservation provisions of the Food Security
Act of 1985. If you or your tenant are USDA Program participants, or anticipate participation in USDA programs, you should request
a certified wetland determination from the local office of the Natural Resources Conservation Service, prior to starting work.
F. Appeals Information (This information applies only to approved jurisdictional determinations as indicated in B.
above)
If you object to this determination, you may request an administrative appeal under Corps regulations at 33 CFR Part 331. Enclosed
you will find a Notification of Appeal Process (NAP) fact sheet and Request for Appeal (RFA) form. If you request to appeal this
determination you must submit a completed RFA form to the following address:
US Army Corps of Engineers
South Atlantic Division
Attn: Mr. Philip A. Shannin
Administrative Appeal Review Officer
60 Forsyth Street SW, Floor M9
Atlanta, Georgia 30303-8803
AND
PHILIP.A.SHANNIN@USACE.ARMY.MIL
In order for an RFA to be accepted by the Corps, the Corps must determine that it is complete, that it meets the criteria for appeal
under 33 CFR part 331.5, and that it has been received by the Division Office within 60 days of the date of the NAP. Should you
decide to submit an RFA form, it must be received at the above address by Not applicable.
**It is not necessary to submit an RFA form to the Division Office if you do not object to the determination in this correspondence.**
Corps Regulatory Official: ______________________________________________________
Date of JD: 07/06/2022 Expiration Date of JD: Not applicable
SAW-2022-01047
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete our Customer Satisfaction Survey, located online at
https://regulatory.ops.usace.army.mil/customer-service-survey/.
Copy Furnished:
PRELIMINARY JURISDICTIONAL DETERMINATION (PJD) FORM
BACKGROUND INFORMATION
A. REPORT COMPLETION DATE FOR PJD: 07/06/2022
B. NAME AND ADDRESS OF PERSON REQUESTING PJD: WithersRavenel, Alyssa Ricci, 115
Mackenen Drive, Cary, NC 27511
C. DISTRICT OFFICE, FILE NAME, AND NUMBER: Wilmington District, Hamlets Chapel Road site,
SAW-2022-01047
D. PROJECT LOCATION(S) AND BACKGROUND INFORMATION: The project site is approximately 42
acres located adjacent to Hamlets Chapel Road, near the town of Pittsboro, Chatham County, North Carolina.
(USE THE TABLE BELOW TO DOCUMENT MULTIPLE AQUATIC RESOURCES
AND/OR AQUATIC RESOURCES AT DIFFERENT SITES)
State: NC County: Chatham City: Pittsboro
Center coordinates of site (lat/long in degree decimal format): Latitude: 35.7936 Longitude: -79.1293
Universal Transverse Mercator:
Name of nearest waterbody: Haw River
E. REVIEW PERFORMED FOR SITE EVALUATION (CHECK ALL THAT APPLY):
Office (Desk) Determination. Date: July 6, 2022
Field Determination. Date(s):
TABLE OF AQUATIC RESOURCES IN REVIEW AREA WHICH "MAY BE" SUBJECT TO
REGULATORY JURISDICTION
1.The Corps of Engineers believes that there may be jurisdictional aquatic resources in the
review area, and the requestor of this PJD is hereby advised of his or her option to request
and obtain an approved JD (AJD) for that review area based on an informed decision after
having discussed the various types of JDs and their characteristics and circumstances when
they may be appropriate.
2.In any circumstance where a permit applicant obtains an individual permit, or a Nationwide
General Permit (NWP) or other general permit verification requiring "pre- construction
notification" (PCN), or requests verification for a non-reporting NWP or other general
permit, and the permit applicant has not requested an AJD for the activity, the permit
applicant is hereby made aware that: (1) the permit applicant has elected to seek a permit
authorization based on a PJD, which does not make an official determination of
jurisdictional aquatic resources; (2) the applicant has the option to request an AJD before
accepting the terms and conditions of the permit authorization, and that basing a permit
authorization on an AJD could possibly result in less compensatory mitigation being
required or different special conditions; (3) the applicant has the right to request an
individual permit rather than accepting the terms and conditions of the NWP or other
general permit authorization; (4) the applicant can accept a permit authorization and
thereby agree to comply with all the terms and conditions of that permit, including
whatever mitigation requirements the Corps has determined to be necessary; (5)
undertaking any activity in reliance upon the subject permit authorization without
requesting an AJD constitutes the applicant's acceptance of the use of the PJD; (6)
accepting a permit authorization (e.g., signing a proffered individual permit) or undertaking
any activity in reliance on any form of Corps permit authorization based on a PJD
constitutes agreement that all aquatic resources in the review area affected in any way by
that activity will be treated as jurisdictional, and waives any challenge to such jurisdiction
in any administrative or judicial compliance or enforcement action, or in any administrative
appeal or in any Federal court; and (7) whether the applicant elects to use either an AJD or
a PJD, the JD will be processed as soon as practicable. Further, an AJD, a proffered
individual permit (and all terms and conditions contained therein), or individual permit
denial can be administratively appealed pursuant to 33 C.F.R. Part 331. If, during an
administrative appeal, it becomes appropriate to make an official determination whether
geographic jurisdiction exists over aquatic resources in the review area, or to provide an
official delineation of jurisdictional aquatic resources in the review area, the Corps will
provide an AJD to accomplish that result, as soon as is practicable. This PJD finds that
there "may be" waters of the U.S. and/or that there "may be" navigable waters of the U.S.
on the subject review area, and identifies all aquatic features in the review area that could
be affected by the proposed activity, based on the following information:
SUPPORTING DATA. Data reviewed for PJD (check all that apply) Checked items are included in the administrative
record and are appropriately cited:
Maps, plans, plots or plat submitted by or on behalf of the PJD requestor:
Map: attached dated 5/5/2022
Data sheets prepared/submitted by or on behalf of the PJD requestor. Datasheets:
Office concurs with data sheets/delineation report.
Office does not concur with data sheets/delineation report. Rationale:
Data sheets prepared by the Corps:
Corps navigable waters' study:
U.S. Geological Survey Hydrologic Atlas:
USGS NHD data:
USGS 8 and 12 digit HUC maps:
U.S. Geological Survey map(s). Cite scale & quad name: Bynum Quad
Natural Resources Conservation Service Soil Survey. Citation: Chatham county, 2006, sheet 4
National wetlands inventory map(s). Cite name: USFWS NWI
State/local wetland inventory map(s):
FEMA/FIRM maps: NC FIRM
100-year Floodplain Elevation is: (National Geodetic Vertical Datum of 1929)
Photographs: Aerial (Name & Date):NC One map 2021
or Other (Name & Date):
Previous determination(s). File no. and date of response letter:
Other information (please specify):
IMPORTANT NOTE: The information recorded on this form has not necessarily been verified by the Corps
and should not be relied upon for later jurisdictional determinations.
Signature and date of Regulatory
staff member completing PJD
07/06/2022
Signature and date of person requesting PJD
(REQUIRED, unless obtaining the signature is
impracticable) 1
1 Districts may establish timeframes for requester to return signed PJD forms. If the requester does not respond within the established
time frame, the district may presume concurrence and no additional follow up is necessary prior to finalizing an action.
WithersRavenel
Our People. Your Success.
USACE NWP 29 (12/21/2022)
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. SAW-2022-01047 County: Chatham U.S.G.S. Quad: NC-Bynum
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Permittee: RBV 1525, LLC.
Attn: Rex Vick, Jr.
Address: 3434 Kildaire Farm Road
Cary, North Carolina 27518
Telephone Number: 919.868.4924
E-mail: rvick@windjamdevelopment.com
Size (acres) ~42 Nearest Town Fearrington
Nearest Waterway Haw River River Basin Cape Fear
USGS HUC 03030002 Coordinates Latitude: 35.7963
Longitude: -79.1293
Location description: The project area is located at 678 Hamlets Chapel Road in Pittsboro, Chatham County, North Carolina.
Description of projects area and activity: This verification authorizes the permanent discharge of fill material into 0.098 acre of
riparian, non-riverine wetlands and 89 linear feet (0.006 acre) of stream channel with 64 linear feet (0.004 ac) resulting in a
loss of waters of the US. The temporary discharge of fill material into 0.042 acre of wetlands and 25 linear feet (0.001 acre) is
also required. These impacts are necessary for the Flatiron Forest Subdivision development.
Applicable Law(s): ܈Section 404 (Clean Water Act, 33 USC 1344)
܆Section 10 (Rivers and Harbors Act, 33 USC 403)
Authorization: Nationwide Permit 29 – Residential Development
SEE ATTACHED NWP GENERAL, REGIONAL, AND/OR SPECIAL CONDITIONS
Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached
Conditions, your application signed and dated 10/21/2022, and the enclosed plans “Flatiron Forest – Impact Maps” dated
9/22/2022. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to a stop
work order, a restoration order, a Class I administrative penalty, and/or appropriate legal action.
This verification will remain valid until the expiration date identified below unless the nationwide and/or regional general permit
authorization is modified, suspended or revoked. If, prior to the expiration date identified below, the nationwide and/or regional general
permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided
it complies with all requirements of the modified nationwide permit. If the nationwide and/or regional general permit authorization
expires or is suspended, revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the
nationwide permit, activities which have commenced (i.e., are under construction) or are under contract to commence in reliance upon
the nationwide and/or regional general permit, will remain authorized provided the activity is completed within twelve months of the
date of the nationwide and/or regional general permit’s expiration, modification or revocation, unless discretionary authority has been
exercised on a case-by-case basis to modify, suspend or revoke the authorization.
Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You
should contact the NC Division of Water Resources (telephone 919-807-6300) to determine Section 401 requirements.
For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior
to beginning work you must contact the N.C. Division of Coastal Management Morehead City, NC, at (252) 808-2808.
This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal, State
or local approvals/permits. If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of
Engineers regulatory program, please contact April Norton at 919-441-3637or April.R.Norton@usace.army.mil.
Corps Regulatory Official: _____________________________________________________Date: 12/21/2022
Expiration Date of Verification: 3/14/2026
The Wilmington District is committed to providing the highest level of support to the public. To help us ensure we
continue to do so, please complete the Customer Satisfaction Survey located at
http://corpsmapu.usace.army.mil/cm_apex/f?p=136:4:0
Copy furnished:
Agent: WithersRavenel
Attn: Rick Trone
Address: 115 MacKenan Drive
Cary, North Carolina 27511
Telephone Number: 919.538.8184
E-mail: rtrone@withersravenel.com
Property Owner: Chatham Land & Timber LLC. & Margaret Browning
Attn: Richard Danek
Address: 981 Old Graham
Pittsboro, North Carolina 27312
Telephone Number: 919.868.4924
E-mail: rvick@windjamdevelopment.com
Action ID Number: SAW-2022-01047 County: Chatham
Permittee: RBV 1525, LLC., Attn: Rex Vick, Jr.
Project Name: Flatiron Forest Subdivision
Date Verification Issued: 12/21/2022
Project Manager: April Norton
Upon completion of the activity authorized by this permit and any mitigation required by the permit,
sign this certification and return it to the following address:
US ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Attn: April Norton
Raleigh Regulatory Office
U.S Army Corps of Engineers
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
or
April.R.Norton@usace.army.mil
Please note that your permitted activity is subject to a compliance inspection by a U. S. Army Corps of
Engineers representative. Failure to comply with any terms or conditions of this authorization may
result in the Corps suspending, modifying or revoking the authorization and/or issuing a Class I
administrative penalty, or initiating other appropriate legal action.
I hereby certify that the work authorized by the above referenced permit has been completed in
accordance with the terms and condition of the said permit, and required mitigation was completed in
accordance with the permit conditions.
_______________________________________ ______________________
Signature of Permittee Date
WithersRavenel
Our People. Your Success.
NCDWR WQC EXCERPT
(12/16/2022)
North Carolina Department of Environmental Quality Division of Water Resources
Raleigh Regional Office 3800 Barrett Drive Raleigh, North Carolina 27609
919.791.4200
December 16, 2022
DWR # 20221471
Chatham County
RBV 1525, LLC
Attn: Rex Vick, Jr.
3434 Kildaire Farm Road
Cary, NC 27518
(via email: rvick@windjamdevelopment.com)
Subject: Approval of Individual 401 Water Quality Certification
Flatiron Forest Subdivision
USACE Action ID. No. SAW- 2022-01047
Dear Mr. Vick:
Attached hereto is a copy of Certification No. 5461 issued to Rex Vick, Jr. and RBV 1525, LLC,
dated December 16, 2022. This approval is for the purpose and design described in your application.
The plans and specifications for this project are incorporated by reference as part of this Water
Quality Certification. If you change your project, you must notify the Division and you may be
required to submit a new application package with the appropriate fee. If the property is sold, the
new owner must be given a copy of this Certification and is responsible for complying with all
conditions. [15A NCAC 02H .0507(d)(2)].
This Water Quality Certification does not relieve the permittee of the responsibility to obtain all other
required Federal, State, or Local approvals before proceeding with the project, including those required
by, but not limited to, Sediment and Erosion Control, Non-Discharge, Water Supply Watershed, and
Trout Buffer regulations.
This Water Quality Certification neither grants nor affirms any property right, license, or privilege in any
lands or waters, or any right of use in any waters. This Water Quality Certification does not authorize any
person to interfere with the riparian rights, littoral rights, or water use rights of any other person and does
not create any prescriptive right or any right of priority regarding any usage of water. This Water Quality
Certification shall not be interposed as a defense in any action respecting the determination of riparian or
littoral rights or other rights to water use. No consumptive user is deemed by virtue of this Water Quality
Certification to possess any prescriptive or other right of priority with respect to any other consumptive
user.
Upon the presentation of proper credentials, the Division may inspect the property.
This Water Quality Certification shall expire on the same day as the expiration date of the corresponding
Section 404 Permit. The conditions shall remain in effect for the life of the project, regardless of the
expiration date of this Water Quality Certification.
Non-compliance with or violation of the conditions herein set forth may result in revocation of this Water
Quality Certification for the project and may also result in criminal and/or civil penalties.
North Carolina Department of Environmental Quality Division of Water Resources
Raleigh Regional Office 3800 Barrett Drive Raleigh, North Carolina 27609
919.791.4200
Flatiron Forest Subdivision
DWR# 20221471
Individual Certification #WQC005461
Page 2 of 14
If you are unable to comply with any of the conditions of this Water Quality Certification you must notify
the Raleigh Regional Office within 24 hours (or the next business day if a weekend or holiday) from the
time the permittee becomes aware of the circumstances.
The permittee shall report to the Raleigh Regional Office any noncompliance with, and/or any violation
of, stream or wetland standards [15A NCAC 02B .0200] including but not limited to sediment impacts to
streams or wetlands. Information shall be provided orally within 24 hours (or the next business day if a
weekend or holiday) from the time the permittee became aware of the non-compliance circumstances.
This approval and its conditions are final and binding unless contested [G.S. 143-215.5].
This Certification can be contested as provided in Chapter 150B of the North Carolina General Statutes by
filing a Petition for a Contested Case Hearing (Petition) with the North Carolina Office of Administrative
Hearings (OAH) within sixty (60) calendar days. Requirements for filing a Petition are set forth in Chapter
150B of the North Carolina General Statutes and Title 26 of the North Carolina Administrative Code.
Additional information regarding requirements for filing a Petition and Petition forms may be accessed at
http://www.ncoah.com/ or by calling the OAH Clerk’s Office at (919) 431-3000.
One (1) copy of the Petition must also be served to the North Carolina Department of Environmental
Quality:
William F. Lane, General Counsel
Department of Environmental Quality
1601 Mail Service Center
Raleigh, NC 27699-1601
If the party filing the Petition is not the permittee, then the party must also serve the recipient of the
Authorization Certificate in accordance with N.C.G.S 150B-23(a).
This letter completes the Division’s review under section 401 of the Clean Water Act and 15A NCAC
02H .0500. Please contact Zach Thomas at 919-791-4255 or zachary.thomas@ncdenr.gov if you have any
questions or concerns.
Sincerely,
Scott Vinson, Regional Supervisor
Water Quality Regional Operations Section
Raleigh Regional Office
Division of Water Resources, NCDEQ
cc: Rick Trone, WithersRavenel (via email: rtrone@withersreavenel.com)
April Norton, USACE Raleigh Regulatory Field Office (via email)
Gabriela Garrison, NC Wildlife Resources Commission (via email)
DWR 401 & Buffer Permitting Branch Electronic file
DocuSign Envelope ID: 95A45A4E-F8F2-45F8-AEB6-E549EAA214AE
North Carolina Department of Environmental Quality Division of Water Resources
Raleigh Regional Office 3800 Barrett Drive Raleigh, North Carolina 27609
919.791.4200
Flatiron Forest Subdivision
DWR# 20221471
Individual Certification #WQC005461
Page 3 of 14
NORTH CAROLINA 401 WATER QUALITY CERTIFICATION
CERTIFICATION #5461 is issued in conformity with the requirements of Section 401, Public Laws 92-
500 and 95-217 of the United States and subject to North Carolina’s Regulations in 15 NCAC 02H .0500
and 15A NCAC 02B .0200, to Rex Vick, Jr. and RBV 1525, LLC, who have authorization for the impacts
listed below, as described within your application received by the N.C. Division of Water Resources
(Division) on October 21, 2022, and payment received October 26, 2022.
The State of North Carolina certifies that this activity will comply with water quality requirements
and the applicable portions of Sections 301, 302, 303, 306, 307 of the Public Laws 92-500 and PL
95-217 if conducted in accordance with the application, the supporting documentation, and
conditions hereinafter set forth.
The following impacts are hereby approved. No other impacts are approved, including incidental
impacts. [15A NCAC 02H .0506(b)]
Type of Impact
Amount Approved
(units) Permanent
Amount Approved
(units) Temporary
404/401 Wetlands:
W1: Construction Access 0 (acres) 0.022 (acres)
W2: Road Crossing 0.075 (acres) 0 (acres)
W3: Construction Access 0 (acres) 0.020 (acres)
W4: Road Crossing 0.023 (acres) 0 (acres)
404/401 Streams:
S1: Construction Access – Dewatering 0 (linear feet) 15 (linear feet)
S2: Road Crossing – Culvert 64 (linear feet) 0 (linear feet)
S3: Road Crossing – RipRap 25 (linear feet) 0 (linear feet)
S4: Construction Access – Dewatering 0 (linear feet) 10 (linear feet)
This approval requires you to follow the conditions listed in the certification below:
CONDITIONS OF CERTIFICATION [15A NCAC 02H .0507(c)]:
1) Erosion and Sediment Control:
Appropriate measures should be installed prior to any land clearing activities to protect wetlands, streams,
and/or buffers from turbidity and/ or sedimentation. These measures should be routinely inspected and
properly maintained, and excavated materials should be contained outside wetland, stream, and/or buffer
boundaries. Excessive silt and sediment loads can have numerous detrimental effects on aquatic resources
including destruction of spawning habitat, suffocation of eggs, and clogging of gills of aquatic species.
Citation: 15A NCAC 02H .0506 (b)(1) and (2)
Justification: Surface water quality standards require that conditions of waters be suitable for all best
uses provided for in state rule (including, at minimum: aquatic life propagation, survival, and
maintenance of biological integrity, wildlife, secondary contact recreation, agriculture); and that
activities must not cause water pollution that precludes any best use on a short-term or long-term basis.
WithersRavenel
Our People. Your Success.
USACE NWP 29 (6/9/2023)
U.S. ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Action Id. SAW-2022-01047 County: Chatham U.S.G.S. Quad: NC-Bynum
GENERAL PERMIT (REGIONAL AND NATIONWIDE) VERIFICATION
Permittee: RBV 1525 LLC Agent: Withers Ravenel
Rex Vick Jr Rick Trone
3434 Kildaire Farm Road 115 MacKenan Drive
Cary, North Carolina 27518 Cary, North Caroli cvna 27511
Size (acres) 42 Nearest Town Fearrington
Nearest Waterway Haw River River Basin Cape Fear
USGS HUC 03030002 Coordinates Latitude: 35.796308
Longitude: -79.129349
Location description: Project is located north of the intersection of Hamlets Chapel Road and Parker Herndon Road in Bynum,
Chatham County, North Carolina. Property is forested with residential homes and forested property nearby.
Description of projects area and activity: This verification authorizes the permanent discharge of fill material into 0.099 acre of
wetland and 104 linear feet of stream for the construction of a residential subdivision and associated infrastructure such as
access roads, sidewalks, utilities and stormwater management features. An additional 0.033 acre of wetland and 68 linear feet
of stream will be temporarily impacted during construction.
Applicable Law(s): ܈Section 404 (Clean Water Act, 33 USC 1344)
܆Section 10 (Rivers and Harbors Act, 33 USC 403)
Authorization: 29
SEE ATTACHED NWP GENERAL, REGIONAL, AND/OR SPECIAL CONDITIONS
Your work is authorized by the above referenced permit provided it is accomplished in strict accordance with the attached
Conditions, your application signed and dated 4/26/2023, and the enclosed plans Overall Stream & Wetland Impact Maps B-D,
dated 4/19/2023. Any violation of the attached conditions or deviation from your submitted plans may subject the permittee to
a stop work order, a restoration order, a Class I administrative penalty, and/or appropriate legal action.
This verification will remain valid until the expiration date identified below unless the nationwide and/or regional general permit
authorization is modified, suspended or revoked. If, prior to the expiration date identified below, the nationwide and/or regional general
permit authorization is reissued and/or modified, this verification will remain valid until the expiration date identified below, provided
it complies with all requirements of the modified nationwide permit. If the nationwide and/or regional general permit authorization
expires or is suspended, revoked, or is modified, such that the activity would no longer comply with the terms and conditions of the
nationwide permit, activities which have commenced (i.e., are under construction) or are under contract to commence in reliance upon
the nationwide and/or regional general permit, will remain authorized provided the activity is completed within twelve months of the
date of the nationwide and/or regional general permit’s expiration, modification or revocation, unless discretionary authority has been
exercised on a case-by-case basis to modify, suspend or revoke the authorization.
Activities subject to Section 404 (as indicated above) may also require an individual Section 401 Water Quality Certification. You
should contact the NC Division of Water Resources (telephone 919-807-6300) to determine Section 401 requirements.
For activities occurring within the twenty coastal counties subject to regulation under the Coastal Area Management Act (CAMA), prior
to beginning work you must contact the N.C. Division of Coastal Management Morehead City, NC, at (252) 808-2808.
This Department of the Army verification does not relieve the permittee of the responsibility to obtain any other required Federal, State
or local approvals/permits. If there are any questions regarding this verification, any of the conditions of the Permit, or the Corps of
Engineers regulatory program, please contact Rachel Capito at 919-4401823or Rachel.A.Capito@usace.army.mil.
Corps Regulatory Official: _____________________________________________________Date: 6/7/2023
Expiration Date of Verification: 3/14/2026
Action ID Number: SAW-2022-01047 County: Chatham
Permittee: RBV 1525 LLC, Rex Vick Jr
Project Name: Flatiron Forest
Date Verification Issued: 6/7/2023
Project Manager: Rachel Capito
Upon completion of the activity authorized by this permit and any mitigation required by the permit,
sign this certification and return it to the following address:
US ARMY CORPS OF ENGINEERS
WILMINGTON DISTRICT
Attn: Rachel Capito
Raleigh Regulatory Office
U.S Army Corps of Engineers
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
or
Rachel.A.Capito@usace.army.mil
Please note that your permitted activity is subject to a compliance inspection by a U. S. Army Corps of
Engineers representative. Failure to comply with any terms or conditions of this authorization may
result in the Corps suspending, modifying or revoking the authorization and/or issuing a Class I
administrative penalty, or initiating other appropriate legal action.
I hereby certify that the work authorized by the above referenced permit has been completed in
accordance with the terms and condition of the said permit, and required mitigation was completed in
accordance with the permit conditions.
_______________________________________ ______________________
Signature of Permittee Date
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WETLAND B
WETLAND C
WETLAND D
WETLAND E
WETLAND F
STREAM 1
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STREAM 2
(PERENNIAL)
STREAM 3
(INTERMITTENT)
50' ZONE 2
WETLAND BUFFER
100' ZONE 2
OUTER BUFFER
30' ZONE
1 BUFFER
50' ZONE 2
INNER BUFFER
IMPACT AREA 2
MAP D
IMPACT AREA 1
MAP C
SCM 1 SCM 2
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
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Initial Plan Date: 04/19/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
04/19/23
63
8
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DRN: EB DGN: WR CKD: RT
OVERALL STREAM &
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MAP
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50SCALE: 1 inch =ft.
25050
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450
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449
451
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:
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:
:
:
:
:
6)
STREAM CL
TOP OF
BANK
IMPACT AREA S2
PERMANENT STREAM IMPACTS
ROAD CROSSING AND GRADING
(FUNCTIONAL LOSS)
78 LF (0.004 AC)
IMPACT AREA S1
TEMPORARY STREAM IMPACTS
TEMPORARY CONSTRUCTION
ACCESS
41 LF (0.001 AC)
IMPACT AREA S3
PERMANENT STREAM IMPACTS
RIP-RAP INSTALLATION
(NO FUNCTIONAL LOSS)
26 LF (0.002 AC)
IMPACT AREA W3
TEMPORARY WETLAND IMPACT
TEMPORARY CONSTRUCTION ACCESS
50 SF (0.001 AC)
IMPACT AREA W2
PERMANENT WETLAND IMPACTS
ROAD CROSSING AND GRADING
3,454 SF (0.079 AC)
IMPACT AREA S4
TEMPORARY STREAM IMPACTS
TEMPORARY CONSTRUCTION
ACCESS
27 SF (0.001 AC)
IMPACT AREA W1
TEMPORARY WETLAND IMPACTS
TEMPORARY CONSTRUCTION
ACCESS
1,387 SF (0.032AC)
70.52 L
F
72" RC
P
C
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A
S
S
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@ 1.56
%
70.52 L
F
54" RC
P
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A
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@ 1.56
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DRAINAGE
EASEMENT
LIMITS OF DISTURBANCE
TREE PROTECTION
FENCE
TEMPORARY
DOWNSTREAM
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TEMPORARY
UPSTREAM
COFFER DAM
TEMPORARY
SEDIMENT BAG
FLEXIBLE HOSE
STREAM 1
(EPHEMERAL)
WETLAND B
LIMITS OF DISTURBANCE
TREE PROTECTION FENCE
SILT FENCE
40' PUBLIC
DRAINAGE
EASEMENT
STREAM 2
(PERENNIAL)
PUMP
RIP-RAP STILLING BASIN
(SEE DETAIL SHEET E)PUMP
100' ZONE 2
OUTER BUFFER
30' ZONE 1
BUFFER
50' ZONE 2
INNER BUFFER
100' ZONE 2
OUTER BUFFER
30' ZONE 1
BUFFER
TEMPORARY
PUMPAROUND
RIPRAP
DISSIPATOR
(TYP)
SILT FENCE
50' ZONE 2
INNER BUFFER
IMPACT AREA B4
IMPACT AREA B8
UPSTREAM CULVERT
430
435
440
445
450
430
435
440
445
450
0+00 0+50 1+00
DOWNSTREAM CULVERT
430
435
440
445
450
430
435
440
445
450
0+00 0+50 1+00
NOTE: CULVERT TO BE BURIED
1' BELOW STREAM BED
NOTE: CULVERT TO BE BURIED
1' BELOW STREAM BED
INV. IN
=436.00
STREAM BED
=437.00
INV. OUT
=434.90
STREAM BED
=435.90
PROPOSED
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EXISTING
GRADE
PROPOSED
GRADE EXISTING
GRADE
RIP-RAP BASIN
DISSIPATOR
72" RCP
72" RCP
54" RCP
54" RCP
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Initial Plan Date: 04/19/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
04/19/23
63
8
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DRN: EB DGN: WR CKD: RT
STREAM &
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C
SCALE: 1 inch =ft.
01530
30
IMPACT LEGEND
TEMPORARY STREAM
PERMANENT STREAM (NO FUNCTIONAL LOSS)
PERMANENT STREAM (FUNCTIONAL LOSS)
PERMANENT WETLANDS
TEMPORARY WETLANDS
176
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30' ZONE 1
WETLAND BUFFER
:
:
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:
:
:
:
:
:
:
26
IMPACT AREA W4
PERMANENT WETLAND IMPACTS
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WETLAND C
LIMITS OF DISTURBANCE
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PERMANENT WETLANDS PREVIOUSLY
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20' ZONE 2
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24
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Initial Plan Date: 04/19/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
04/19/23
63
8
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IMPACT LEGEND
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Initial Plan Date: 04/19/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
04/19/23
63
8
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RIP-RAP STILLING
BASIN DETAILS
E
WithersRavenel
Our People. Your Success.
NCDWR 401 WQC
EXCERPT (6/2/2023)
WithersRavenel
Our People. Your Success.
USFWS CONCURRENCE EMAIL &
WR CONCURRENCE REQUEST
From:Ellis, John
To:Ricci, Alyssa; Mann, Leigh
Subject:Fw: DUE DATE: JUNE 16, 2022 Fw: [EXTERNAL] Flatiron Forest Subdivision - Pittsboro, Chatham County -
Threatened & Endangered Species Assessment Concurrence Request
Date:Thursday, August 4, 2022 1:48:04 PM
Attachments:USFWS Concurrence Request- Flatiron Forest Subdivision 5.18.2022.pdf
The Service concurs with your determinations.
John
From: Mann, Leigh <leigh_mann@fws.gov>
Sent: Wednesday, May 18, 2022 1:26 PM
To: Ellis, John <john_ellis@fws.gov>
Subject: DUE DATE: JUNE 16, 2022 Fw: [EXTERNAL] Flatiron Forest Subdivision - Pittsboro, Chatham
County - Threatened & Endangered Species Assessment Concurrence Request
Leigh Mann
Office Automation
USFWS Raleigh ES FO
551-F Pylon Drive
Raleigh, NC 27606
Office: 1-919-856-4520 ext. 10
Fax: 1-919-856-4556
leigh_mann@fws.gov
NOTE: This email correspondence and any attachments to and from this sender is subject to the Freedom
of Information Act (FOIA) and may be disclosed to third parties.
From: Ricci, Alyssa <aricci@withersravenel.com>
Sent: Wednesday, May 18, 2022 12:51 PM
To: Mann, Leigh <leigh_mann@fws.gov>
Subject: [EXTERNAL] Flatiron Forest Subdivision - Pittsboro, Chatham County - Threatened &
Endangered Species Assessment Concurrence Request
This email has been received from outside of DOI - Use caution before clicking on
links, opening attachments, or responding.
Ms. Mann,
Attached is the report documenting our findings for the survey conducted for federally listed
threatened and endangered species for the Flatiron Forest Subdivision in Pittsboro, Chatham
County.
We are requesting USFWS concurrence with our findings.
Please let me know if you have questions, and thank you in advance for your assistance with this
project.
Alyssa Ricci
115 MacKenan Drive | Cary, NC 27511 Office: 919.469.3340 | Direct: 919.535.5151 aricci@withersravenel.com
CONFIDENTIALITY AND NONDISCLOSURE
WithersRavenel
Our People. Your Success.
115 MacKenan Drive | Cary, NC 27511
t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F-1479
Asheville | Cary | Charlotte | Greensboro | Lumberton | Pittsboro | Raleigh | Southern Pines | Wilmington
May 18, 2022
Mr. Pete Benjamin
US Fish & Wildlife Service
551F Pylon Drive
Raleigh, NC 27606
Re: Flatiron Forest Subdivision
Pittsboro, Chatham County
Threatened & Endangered Species Assessment Report – Request for Concurrence
WR Project #02220132.00
Mr. Benjamin,
WithersRavenel (WR) has conducted a site review of the Flatiron Forest Subdivision review area
for the purpose of evaluating the presence of federally listed threatened and endangered species
and/or potential habitat within the review area. The review area is 42.69 acres and consists of all
of the one parcel (Chatham Co Parcel ID: 2014, 0.69 acres), and the 42-acre portion of the larger
parcel (Chatham Co Parcel ID: 2037, 92 acres) located east of Hamlets Chapel Road in Pittsboro,
Chatham County, North Carolina (Lat: 35.795104°N; Long: -79.128811°W).
The review area is located within the Cape Fear River Basin (HUC 03030002) and drains to the
Haw River. The NC Stream Index for the Haw River is 16-(28.75) and the Water Quality
Classification is WS-IV; NSW, CA.
WR surveyed the review area for the presence of federally listed threatened and endangered
species, or their potential habitat, protected under the Endangered Species Act (ESA). This report
summarizes the findings of the survey.
Proposed Activities
The review area is being assessed to determine the viability of the site for the future
development of a residential neighborhood.
Site Conditions
The review area consists entirely of undeveloped woodlands and contains three streams and a
small wetland complex. The onsite woodlands were characterized as pine plantation forest.
Based on a review of historical aerial imagery the property was logged/clearcut around 1985 and
reforested with rows of planted pine trees between 1999-2005. Since 2005, the pine forest has
been managed for silviculture, including periodic thinning of the pines. The vegetative
community within the review area has been classified as pine plantation forest which has a dense
canopy dominated by loblolly pine (Pinus taeda) and the understory sparsely vegetated with
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American holly (Ilex opaca), Chinese privet (Ligustrum sinese) and Japanese stiltgrass (Microstegium
vimineum).
Threatened & Endangered Species Review
Methodology
WR reviewed the US Fish and Wildlife Service’s online threatened and endangered species
database, located at: http://www.fws.gov/raleigh/species/cntylist/nc_counties.html and the NC
Wildlife Resource Commission’s “State and Federally Listed Endangered Wildlife Species of
North Carolina” publication, located at www.ncwildlife.org, to identify federally listed threatened
and endangered species known to occur in Chatham County, North Carolina.
WR summitted a request on 03/10/2022 for the official species list generated using USFWS’
Information for Planning and Consultation (IPaC), located at https://ecos.fws.gov/ipac/. This
species list identifies threatened, endangered, proposed and candidate species, as well as
proposed and designated critical habitat, that may occur within the boundary of the project and
may be affected by the project. The IPaC list specified that there are six species (Red-cockaded
Woodpecker, Cape Fear Shiner, and Harperella) that may be within the project area or affected
by the project. The IPaC list has been provided as an attachment.
WR submitted a project review request to the NCNHP through their Data Explorer webpage,
located at: https://ncnhde.natureserve.org/, to identify known occurrences of federally listed
threatened or endangered species within 1.0 mile of the review area. The NCNHP project review
did not identify any known occurrences of federally listed species within the review area or
within 1.0 miles, as documented in the attached letter from NCNHP dated 03/10/2022.
On 03/30/2022, WR conducted a pedestrian survey to assess vegetative communities and
identify potential habitat for, or occurrences of federally listed species within or immediately
adjacent to the review area. The review area contained one vegetative community (pine
plantation forest) as discussed in the Site Conditions section of this report.
Species Synopsis and Preliminary Assessment Results
Plants and animals classified as Endangered (E) or Threatened (T) by the USFWS are protected
under the provisions of Section 7 and Section 9 of the Endangered Species Act of 1973, as
amended. Plants and animals classified as Proposed (P) are currently proposed for official
designation of a protected species under the Endangered Species Act. The following table
presents federally listed species on the IPaC list dated 03/10/2022.
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Common Name Scientific Name Federal
Status
Habitat
Present Biological Determination
Federally Listed Species by USFWS for Chatham County
Bald Eagle Haliaeetus leucocephalus BGEPA* No No Effect
Red-Cockaded
Woodpecker Picoides borealis E No No Effect
Cape Fear Shiner Notropis mekistocholas E No No Effect
Harperella Ptilimnium nodosum T No No Effect
*BGEPA – Bald and Golden Eagle Protection Act
Bald Eagle (BGEPA)
Habitat for the bald eagle primarily consists of mature forest in proximity to large bodies of open
water for foraging. Large dominant trees are utilized for nesting sites, typically within 1.0 mile of
open water. WR reviewed the NC Natural Heritage Program GIS data to determine the location
of the known bald eagle nest sites and their distance from the review area. Based on the NCNHP
GIS data, there are no known occurrences of bald eagle nesting/roosting sites within 1.0 mile of
the review area. According to the 2022 NCNHP data, the nearest known bald eagle nest (EOID:
15747) is ±3.87 miles east of the review area. The US Fish and Wildlife Services’ “National Bald
Eagle Management Guidelines” (May 2007), specifies that activities taking place in excess of 660’
from a Bald eagle nest will have no effect on the nesting activities.
During the pedestrian surveys, no bald eagles or their nests were observed within or adjacent to
the review area. Additionally, no bald eagles were observed in flight. The review area did not
contain large dominant trees with unobstructed access that could be used for nesting sites.
Furthermore, there is no potential foraging habitat within 2.0 miles and therefore a survey of the
areas within 660’ of the review areas was not required.
Based on a lack of suitable nesting habitat, and lack of nearby records, WR concludes that the
project will have No Effect on bald eagles.
Biological Determination – No Effect
Red-Cockaded Woodpecker (E)
The red-cockaded woodpecker (RCW) occurs in extensive tracts of open stands of mature pines,
particularly longleaf pine (Pinus palustris), for foraging and nesting/roosting habitat, typically 70
to 100 acres or more. The red-cockaded woodpecker is rarely found in deciduous or mixed pine-
hardwoods. The RCW excavates cavities for nesting and roosting in living pine trees, aged 60
years or older, which are contiguous with pine stands at least 30 years of age to provide foraging
habitat. Optimal habitat is characterized as a broad savanna with a scattered overstory of large
pines and a dense groundcover containing a diversity of grass, forbs, and shrub species. Midstory
vegetation is sparse or absent. Frequent fires maintain the quality of the RCW’s habitat. The
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foraging range of the RCW is normally no more than 0.5 miles. The review of the NCNHP GIS
data did not identify any known occurrences of RCW within 1.0 miles of the review area.
The onsite pine plantation forest is approximately 17-23 years of age based on historic aerials,
making them much too young to be considered potential RCW nesting habitat. The pedestrian
survey confirmed that there are no large, contiguous stands of mature pine dominated forest
that could be potential RCW nesting habitat. A review of aerial photography determined that
there are no large areas of mature pine forest within 0.5 mile of the review area sufficient to be
considered suitable RCW nesting habitat. Therefore, the review area was not considered
potential RCW foraging habitat.
Based on a lack of potential habitat, and lack of nearby records, WR concludes that the proposed
project will have No Effect on RCW.
Biological Determination – No Effect
Cape Fear Shiner (E)
The Cape Fear shiner is a small (approximately 2” long), yellowish minnow with a black band
along the sides of its body. The Cape Fear shiner is generally associated with gravel, cobble and
boulder substrates and is endemic to the upper Cape Fear River Basin in the Central Piedmont of
North Carolina. The species is known to occur in tributaries and mainstreams of the Deep River,
Haw River, Rocky River and Cape Fear River in Chatham, Harnett, Lee, Moore and Randolph
Counties.
The USFWS identifies the Critical Habitat Designation for the Cape Fear Shiner as being ±4.1
miles of the Rocky River from NC Hwy 902 bridge downstream to Chatham County Road 1010
Bridge, and ±0.5 river miles of Bear Creek, from Chatham County Road 2156 Bridge downstream
to the Rocky River, then downstream in the Rocky River (±4.2 river miles) to the Deep River, the
downstream in the Deep River (±2.6 river miles) to a point 0.3 river miles below the Moncure,
NC, USGS Geological Survey Gauging Station. The USFWS designated critical area is located
approximately 18.5 miles from the project, within an adjacent tributary. Constituent elements
include clean streams with gravel, cobble and boulder substrates with pools, riffles, shallow runs
and slack water areas with large outcrops and side channels and pools with water of good quality
with relatively low silt loads (USFWS, Federal Register reference 9/25/87, Federal Register, 2:
36034-36039).
The proposed project is outside of the designated critical area for the Cape Fear shiner. The
ephemeral and intermittent streams located in the review area were not considered potential
habitat due to the lack of water in these streams during portions of the year. The perennial
stream within the review area was small and shallow only having a depth of water approximately
2-4”. This perennial stream contained sandy beds and did not contain significant gravel or cobble
substrates, and therefore was not considered suitable habitat.
Based on being outside the designated critical habitat, the lack of potential habitat, lack of
nearby records, WR concludes that the project will have No Effect on the Cape Fear shiner.
Biological Determination – No Effect
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Harperella (T)
Harperella is a perennial herb that grows to a height of 6-36 inches with leaves that are hollow,
quill-like structures. Harperella flowers from May until the first frost, and the small white
flowers occur in heads, reminiscent of a small Queen Anne’s lace flower head. Harperella is
typically found on rocky or gravel shoals and sandbars and along the margins of clear, swift-
flowing stream sections. The only known population in Chatham County is a recently re-
introduced population in the Deep River after the original population known from that area
disappeared.
The ephemeral and intermittent streams located in the review area were not considered
potential habitat due to the lack of water in these streams during portions of the year. The
perennial stream was a small, low-flowing shallow stream that had a depth of water
approximately 2-4” and therefore was not considered suitable habitat.
Based on the lack of potential habitat, lack of nearby records, WR concludes that the project will
have No Effect on harperella.
Biological Determination – No Effect
Summary
The review area does not contain occurrences of, or potential habitat for the Bald Eagle, RCW,
Cape Fear Shiner, or Harperella and the proposed activities will have no effect on these species.
Therefore, based our findings and best professional judgment Section 7 consultation with the
USFWS under the ESA is not required as the proposed project will have No Effect on federally
listed threatened or endangered species known to occur in Chatham County.
We request USFWS’ review of the results of the of the threatened and endangered species for
concurrence with our findings. Please feel free to contact me if you have any questions or
concerns regarding the contents of this report.
Sincerely,
Alyssa Ricci Troy Beasley
Environmental Scientist Senior Environmental Scientist
WithersRavenel WithersRavenel
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Attachments:
1) USGS Quadrangle Exhibits
2) Aerial Exhibit
3) Vegetative Communities Exhibit
4) Bald Eagle Location Exhibit
5) Chatham County Soil Survey Exhibit
6) USFWS Official Species List
7) NCNHP Project Review Letter
8) Photo Documentation
REFERENCES
1. 2021 Natural Heritage Program List of Rare Plant Species of North Carolina. Edited by Laura
Gadd Robinson. N. C. Natural Heritage Program; NC Department of Environment and
Natural Resources.
2. 2020 Natural Heritage Program List of the Rare Animal Species of North Carolina. Compiled
by Judith A. Ratcliffe. N. C. Natural Heritage Program; NC Department of Environment and
Natural Resources.
3. Flora of the Southern and Mid-Atlantic States – May 2015 version by Alan S. Weakly,
University of North Carolina Herbarium.
5. Natural Heritage Program Database Search at: https://ncnhde.natureserve.org/ accessed
01/07/2022.
6. NC Natural Heritage Program Project Review Letter dated 03/10/2022.
7. USFWS IPaC Official Species List dated 03/10/2022.
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USFWS OFFICIAL SPECIES
LIST
MARCH 2022
March 10, 2022
United States Department of the Interior
FISH AND WILDLIFE SERVICE
Raleigh Ecological Services Field Office
Post Office Box 33726
Raleigh, NC 27636-3726
Phone: (919) 856-4520 Fax: (919) 856-4556
In Reply Refer To:
Project Code: 2022-0018370
Project Name: Flatiron Forest
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 enclosed species list 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-IPaC 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.
The purpose of the Act is to provide a means whereby threatened and endangered species and the
ecosystems upon which they depend may be conserved. Under sections 7(a)(1) and 7(a)(2) of the
Act and its implementing regulations (50 CFR 402 et seq.), Federal agencies are required to
utilize their authorities to carry out programs for the conservation of threatened and endangered
species and to determine whether projects may affect threatened and endangered species and/or
designated critical habitat.
A Biological Assessment is required for construction projects (or other undertakings having
similar physical impacts) that are major Federal actions significantly affecting the quality of the
human environment as defined in the National Environmental Policy Act (42 U.S.C. 4332(2)
(c)). For projects other than major construction activities, the Service suggests that a biological
03/10/2022 2
evaluation similar to a Biological Assessment be prepared to determine whether the project may
affect listed or proposed species and/or designated or proposed critical habitat. Recommended
contents of a Biological Assessment are described at 50 CFR 402.12.
If a Federal agency determines, based on the Biological Assessment or biological evaluation, that
listed species and/or designated critical habitat may be affected by the proposed project, the
agency is required to consult with the Service pursuant to 50 CFR 402. In addition, the Service
recommends that candidate species, proposed species and proposed critical habitat be addressed
within the consultation. More information on the regulations and procedures for section 7
consultation, including the role of permit or license applicants, can be found in the "Endangered
Species Consultation Handbook" at:
http://www.fws.gov/endangered/esa-library/pdf/TOC-GLOS.PDF
Migratory Birds: In addition to responsibilities to protect threatened and endangered species
under the Endangered Species Act (ESA), there are additional responsibilities under the
Migratory Bird Treaty Act (MBTA) and the Bald and Golden Eagle Protection Act (BGEPA) to
protect native birds from project-related impacts. Any activity, intentional or unintentional,
resulting in take of migratory birds, including eagles, is prohibited unless otherwise permitted by
the U.S. Fish and Wildlife Service (50 C.F.R. Sec. 10.12 and 16 U.S.C. Sec. 668(a)). For more
information regarding these Acts see https://www.fws.gov/birds/policies-and-regulations.php.
The MBTA has no provision for allowing take of migratory birds that may be unintentionally
killed or injured by otherwise lawful activities. It is the responsibility of the project proponent to
comply with these Acts by identifying potential impacts to migratory birds and eagles within
applicable NEPA documents (when there is a federal nexus) or a Bird/Eagle Conservation Plan
(when there is no federal nexus). Proponents should implement conservation measures to avoid
or minimize the production of project-related stressors or minimize the exposure of birds and
their resources to the project-related stressors. For more information on avian stressors and
recommended conservation measures see https://www.fws.gov/birds/bird-enthusiasts/threats-to-
birds.php.
In addition to MBTA and BGEPA, Executive Order 13186: Responsibilities of Federal Agencies
to Protect Migratory Birds, obligates all Federal agencies that engage in or authorize activities
that might affect migratory birds, to minimize those effects and encourage conservation measures
that will improve bird populations. Executive Order 13186 provides for the protection of both
migratory birds and migratory bird habitat. For information regarding the implementation of
Executive Order 13186, please visit https://www.fws.gov/birds/policies-and-regulations/
executive-orders/e0-13186.php.
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 Code in the header of
this letter with any request for consultation or correspondence about your project that you submit
to our office.
03/10/2022 3
▪
Attachment(s):
Official Species List
03/10/2022 1
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
(919) 856-4520
03/10/2022 2
Project Summary
Project Code:2022-0018370
Event Code:None
Project Name:Flatiron Forest
Project Type:Residential Construction
Project Description:02220132.00 Flatiron Forest
Project Location:
Approximate location of the project can be viewed in Google Maps: https://
www.google.com/maps/@35.79556255,-79.1295879470006,14z
Counties:Chatham County, North Carolina
03/10/2022 3
1.
Endangered Species Act Species
There is a total of 4 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
Fisheries , 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.
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.
Birds
NAME STATUS
Red-cockaded Woodpecker Picoides borealis
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/7614
Endangered
Fishes
NAME STATUS
Cape Fear Shiner Notropis mekistocholas
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/6063
Endangered
Insects
NAME STATUS
Monarch Butterfly Danaus plexippus
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/9743
Candidate
Flowering Plants
NAME STATUS
Harperella Ptilimnium nodosum
No critical habitat has been designated for this species.
Species profile: https://ecos.fws.gov/ecp/species/3739
Endangered
1
03/10/2022 4
Critical habitats
THERE ARE NO CRITICAL HABITATS WITHIN YOUR PROJECT AREA UNDER THIS OFFICE'S
JURISDICTION.
03/10/2022 5
IPaC User Contact Information
Agency:WithersRavenel
Name:Alyssa Ricci
Address:115 Mackenan Drive
City:Cary
State:NC
Zip:27511
Email aricci@withersravenel.com
Phone:9192158619
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USFWS IPAC RESOURCE
LIST 1/12/2024
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NCNHP PROJECT REPORT
1/12/2024
NCNHDE-24589
January 12, 2024
Troy Beasley
Withers & Ravenel
115 MacKenan Drive
Cary, NC 27511
RE: Flatiron Forest; 02220132.00
Dear Troy Beasley:
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, based on the project area mapped with your request, indicates
that there are no records for rare species, important natural communities, natural areas, and/or
conservation/managed areas within the proposed project boundary, or within a one-mile radius of
the project boundary.
Please note that although there may be no documentation of natural heritage elements within or
near the project boundary, it does not imply or confirm their absence; the area may not have been
surveyed. The results of this query should not be substituted for field surveys where suitable habitat
exists. In the event that rare species are found within the project area, please contact the NCNHP so
that we may update our records.
Please also 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 also not be redistributed without
permission.
If you have questions regarding the information provided in this letter or need additional assistance,
please contact the NCNHP at natural.heritage@dncr.nc.gov.
Sincerely,
NC Natural Heritage Program
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SHPO COMMENT LETTER
North Carolina Department of Natural and Cultural Resources
State Historic Preservation Office
Ramona M. Bartos, Administrator
Governor Roy Cooper Office of Archives and History
Secretary D. Reid Wilson Deputy Secretary, Darin J. Waters, Ph.D.
Location: 109 East Jones Street, Raleigh NC 27601 Mailing Address: 4617 Mail Service Center, Raleigh NC 27699-4617 Telephone/Fax: (919) 814-6570/814-6898
April 27, 2022
Alyssa Ricci aricci@withersravenel.com
WithersRavenel
115 MacKenan Drive
Cary, NC 27511
Re: Construct Flatiron Forest residential subdivision, 625 Hamlets Chapel Road, Pittsboro,
Chatham County, ER 22-1128
Dear Ms. Ricci:
Thank you for your email of April 5, 2022, regarding the above-referenced undertaking. We have reviewed
the submittal and offer the following comments.
We have conducted a review of the project and are aware of no historic resources which would be affected
by the project. Therefore, we have no comment on the project as proposed.
The above comments are made pursuant to Section 106 of the National Historic Preservation Act and the
Advisory Council on Historic Preservation’s Regulations for Compliance with Section 106 codified at 36
CFR Part 800.
Thank you for your cooperation and consideration. If you have questions concerning the above comment,
contact Renee Gledhill-Earley, environmental review coordinator, at 919-814-6579
or environmental.review@ncdcr.gov. In all future communication concerning this project, please cite the
above referenced tracking number.
Sincerely,
Ramona Bartos, Deputy
State Historic Preservation Officer
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CHATHAM COUNTY BUFFER
DETERMINATION LETTER
WATERSHED PROTECTION DEPARTMENT
P.O. Box 548
Pittsboro, NC 27312
PHONE: (919) 545-8394
Fax: (919) 542-2698 ● E-mail: drew.blake@chathamcountync.gov ● Website: www.chathamcountync.gov
June 8, 2022
Alyssa Ricci
Withers Ravenel
115 Mackenan Drive
Cary, NC 27511
Project Name: Flatiron Forest – Mt Gilead Parcel # 2014 & 2037
Location: Hamlets Chapel Road, Chatham County
Subject Features: One (1) ephemeral stream, one (1) intermittent stream
segment, one (1) perennial stream segments, and six (6)
potential wetlands
Date of
Determination:
June 2, 2022
Explanation:
The site visit was completed on June 2, 2022, by Drew Blake with Chatham County Watershed Protection
and staff of Withers Ravenel on Parcel # 2014 and 2037 that are located within the Jordan Lake watershed.
Withers Ravenel personnel completed a previous site visit which resulted in the identification of two (2)
ephemeral stream, one (1) intermittent stream segment, one (1) perennial stream segments, and six (6)
potential wetlands on the property. Withers Ravenel submitted a request for Chatham County to complete a
formal review to determine if the features would be subject to riparian buffers according to Section 304 of the
Chatham County Watershed Protection Ordinance.
All points of origin, stream type transitions, and wetland boundaries were reviewed and agreed to in the field
by all parties in attendance. One ephemeral stream segment (Feature B – Stream Form 2A) was removed as
the segment did not meet the required 10 points for ephemeral streams.
Required Riparian Buffers:
All ephemeral stream segments will require a 30-ft buffer from the top of bank landward on both sides. All
intermittent stream segments will require a 50-ft buffer from the top of bank landward on both sides. The
perennial stream segment will require a 100-ft buffer from the top of bank landward on both sides. A 50-ft
buffer will be required on all wetlands from the flagged boundary landward.
Impacts to Riparian Buffers:
Impacts to the riparian buffers may require a Riparian Buffer Authorization depending on the size and scope
of the impacts. Please refer to Section 304 (J)(3) of the Chatham County Watershed Protection Ordinance to
determine if your impacts will require a Riparian Buffer Authorization. If you determine that a Riparian
Buffer Authorization is required please contact Drew Blake to receive the required application and submittal
instructions.
This on-site determination shall expire five (5) years from the date of this letter. Landowners or affected
parties that dispute a determination made by Chatham County, on parcels outside of the Jordan Lake
WATERSHED PROTECTION DEPARTMENT
P.O. Box 548
Pittsboro, NC 27312
PHONE: (919) 545-8394
Fax: (919) 542-2698 ● E-mail: drew.blake@chathamcountync.gov ● Website: www.chathamcountync.gov
watershed, may submit a request for appeal in writing to the Watershed Review Board. A request for a
determination by the Watershed Review Board shall be made in accordance with Section 304 of the Chatham
County Watershed Protection Ordinance. Landowners or affected parties that dispute a determination made
by Chatham County, on parcels inside the Jordan Lake watershed, shall submit a request for appeal in writing
to NC DWR, 401 & Buffer Permitting Unit, 1650 Mail Service Center, Raleigh, NC 27669-1650 attention of
the Director of the NC Division of Water Quality.
Should this project result in any direct impacts to surface water features (i.e., crossing and/or filling streams
or wetlands) additional reviews may be necessary. Additionally, a Section 404/401 Permit may be required.
Any inquiries regarding Section 404/401 permitting should be directed to the Division of Water Resources
(Central Office) at (919)-807-6364 and the US Army Corp of Engineers (Raleigh Regulatory Field Office) at
(919)-554-4884.
Respectfully,
Drew Blake
Senior Watershed Specialist, CESSWI
Enclosures:
Buffer Determination Exbibit with Buffers – Completed by Withers Ravenel
NRCS Soil Survey – Completed by Withers Ravenel
USGS Topographic Map – Completed by Withers Ravenel
Withers Ravenel Stream ID Forms
Withers Ravenel Wetland Data Form
Major Subdivision Riparian Buffer Application
Authorized Agent Form
Authorization to Enter Property Form
Site Photographs – provided by Withers Ravenel
cc: Rachael Thorn, Director, Chatham County Watershed Protection Department
Kimberly Tyson, Planner II/Subdivision Administrator, Chatham County Planning Department
Hunter Glenn. Planner I, Chatham County Planning Department
Angela Plummer, Planner II/Zoning Administrator, Chatham County Planning Department
Jason Sullivan, Director, Chatham County Planning Department
H
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REVIEW AREA
100' CHATHAM CO.
RIPARIAN BUFFER
50' CHATHAM CO.
RIPARIAN BUFFER
WETLAND A
WETLAND B
WETLAND C
WETLAND D
WETLAND E
WETLAND F
FEATURE A
(STREAM 1)
FEATURE C
(STREAM 3)
FEATURE B
(STREAM 2)
EPHERMERAL
S-1 START EPH
30' CHATHAM CO.
RIPARIAN BUFFER
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1 inch = 200 ft.
GRAPHIC SCALE
0 100 200
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NOTES:
1) DELINEATION PERFORMED BY WR ON 03/30/2022.
2) WETLAND/STREAM/BUFFER LOCATIONS ARE APPROXIMATE, BASED ON GPS LOCATION, CHATHAM COUNTY GIS
DATA, AND TOPOGRAPHIC INTERPRETATION.
WithersRavenel
Our People. Your Success.
REVISED IMPACT
EXHIBITS
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470
475
480
455
460
465
470
470
470
47
5
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5
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4
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460
465
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OHE
OHE
FO
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W
WETLAND A
WETLAND B
WETLAND C
WETLAND D
WETLAND E
WETLAND F
STREAM 1
(EPHEMERAL)
STREAM 2
(PERENNIAL)
STREAM 3
(INTERMITTENT)
50' ZONE 2
WETLAND BUFFER
100' ZONE 2
OUTER BUFFER
30' ZONE
1 BUFFER
50' ZONE 2
INNER BUFFER
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
k:
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Initial Plan Date: FLATIRON FOREST
IMPACT MAPS
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
12/29/23
63
8
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DRN: EB DGN: WR CKD: RT
OVERALL EXISTING
CONDITIONS
A
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50SCALE: 1 inch =ft.
250 50
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SITE
1.BASIS OF BEARINGS: NC STATE PLANE GRID COORDINATES, NAD83(2011).
2.ALL DISTANCES ARE HORIZONTAL GROUND DISTANCES IN U.S. SURVEY FEET UNLESS OTHERWISE NOTED.
3.AREAS SHOWN HEREON WERE COMPUTED USING THE COORDINATE METHOD.
4.LINES NOT SURVEYED ARE SHOWN AS BROKEN LINES FROM INFORMATION REFERENCED ON THE FACE OF
THIS PLAT.
5.NO EVIDENCE OF EARTH MOVING WAS OBSERVED IN THE PROCESS OF CONDUCTING FIELDWORK ON SUBJECT
PARCEL.
6.NO EVIDENCE OF RECENT STREET OR SIDEWALK CONSTRUCTION OR REPAIRS OBSERVED IN THE PROCESS
OF CONDUCTING FIELDWORK.
7.NO EVIDENCE OF BURIAL GROUNDS WAS OBSERVED IN THE PROCESS OF CONDUCTING FIELDWORK.
8.PROPERTY IS NOT LOCATED WITHIN A FLOOD HAZARD AREA ACCORDING TO FLOOD INSURANCE RATE MAP
3710976400K DATED NOVEMBER 17, 2017.
9.IRON PIPES SET AT ALL CORNERS UNLESS OTHERWISE NOTED.
10.WETLAND/BUFFER DELINEATION PERFORMED BY WR ON 03/30/2022.
11.STREAM/BUFFER LOCATIONS ARE APPROXIMATE, BASED ON GPS LOCATION, CHATHAM COUNTY DATA, AND
TOPOGRAPHIC INTERPRETATION.
12.BUFFER SUBJECTIVITY BASED ON CHATHAM COUNTY WATERSHED PROTECTION ORDINANCE. BUFFER
SUBJECTIVITY WAS VERIFIED BY CHATHAM COUNTY ON 06/08/2022.
13.DELINEATION AND JURISDICTIONAL STATUS WAS VERIFIED BY USACE ON 07/06/2022 (SAW-2022-01047).
GENERAL NOTES
VICINITY MAP N.T.S
LO
D
LOD
LO
D
L
O
D
L
O
D
LO
D
LODLODLODLODLODLODLODLODLOD
LOD
LO
D
LOD
LO
D
LOD LOD LOD
LO
D
LO
D
LOD
LOD
LOD
LOD
LOD
LOD
HAM
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UP
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FLATIRON FOREST DRIVE
COP
L
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Y
C
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OHE
OHE
OS
17OS
22
456789
13 16
21
11
12
10
19
20
23
24
25
26 27
18
28
1
OS
23
15
14
WETLAND A
WETLAND B
WETLAND C
WETLAND D
WETLAND E
WETLAND F
STREAM 1
(EPHEMERAL)
STREAM 2
(PERENNIAL)
STREAM 3
(INTERMITTENT)
50' ZONE 2
WETLAND BUFFER
100' ZONE 2
OUTER BUFFER
30' ZONE
1 BUFFER
50' ZONE 2
INNER BUFFER
IMPACT AREA 2
MAP D
IMPACT AREA 1
MAP C
SCM 1
SCM 2
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
50' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
k:
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Initial Plan Date: 12/29/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
12/29/23
63
8
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OVERALL STREAM &
WETLAND IMPACT
MAP
B
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50SCALE: 1 inch =ft.
250 50
SF/T
P
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F
/
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SF/T
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SF/T
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SF/TP
SF/T
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SF
SF
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SF/
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LO
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LOD
LO
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LO
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LO
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LO
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LO
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LOD
LOD
LOD
LOD
LOD
LO
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LO
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LO
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LO
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LOD
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LOD
LOD
LOD
LOD
LOD
TP
TP
SF
TP
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F
/
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450
45
0
447
448
449
45
1
45
2
450
448
449
4
4
0
445
450
4
4
0
44
5
445
445
4
4
5
4
5
0
44
0
44
5
4
5
0
8'' W
8'' W
8'' W
8'' W
8'' W
8'' W
8'' W
8'' W
8'' W
25
40' PUBLIC
DRAINAGE
EASEMENT
LIMITS OF DISTURBANCE
SILT FENCE/TREE
PROTECTION FENCE
TEMPORARY
UPSTREAM
COFFER DAM
TEMPORARY
SEDIMENT BAG
FLEXIBLE HOSE
STREAM 1
(EPHEMERAL)
WETLAND B
LIMITS OF DISTURBANCE
SILT FENCE/TREE
PROTECTION FENCE (TYP)
40' PUBLIC
DRAINAGE
EASEMENT
STREAM 2
(PERENNIAL)
PUMP
RIP-RAP STILLING BASIN
(SEE DETAIL SHEET E)
PUMP
100' ZONE 2
OUTER BUFFER
30' ZONE 1
BUFFER
50' ZONE 2
INNER BUFFER
100' ZONE 2
OUTER BUFFER
30' ZONE 1
BUFFER
TEMPORARY
PUMPAROUND
RIP-RAP ENERGY
DISSIPATOR (TYP)
SILT FENCE
50' ZONE 2
INNER BUFFER
STREAM 2
(PERENNIAL)
1+0
0
0+0
0
0+0
0
1+0
0
10.50
'
x
5
.
5
8
'
A
L
B
C
CLASS B RIP-RAP TOE
PROTECTION (TYP)
TEMPORARY
DOWNSTREAM
COFFER DAM
STREAM CL
TOP OF
BANK
IMPACT AREA S2
PERMANENT STREAM IMPACTS
ROAD CROSSING AND GRADING
(FUNCTIONAL LOSS)
74 LF (182 SF)
IMPACT AREA S1
TEMPORARY STREAM IMPACTS
TEMPORARY CONSTRUCTION
ACCESS
42 LF (103 SF)
IMPACT AREA S3
PERMANENT STREAM IMPACTS
RIP-RAP INSTALLATION
(NO FUNCTIONAL LOSS)
32 LF (91 SF)
IMPACT AREA W3
TEMPORARY WETLAND IMPACT
TEMPORARY CONSTRUCTION ACCESS
58 SF (0.001 AC)
IMPACT AREA W2
PERMANENT WETLAND IMPACTS
ROAD CROSSING AND GRADING
3,437 SF (0.079 AC)
IMPACT AREA S4a
TEMPORARY STREAM IMPACTS
TEMPORARY CONSTRUCTION
ACCESS
20 LF (25 SF)
IMPACT AREA W1
TEMPORARY WETLAND IMPACTS
TEMPORARY CONSTRUCTION
ACCESS
1,487 SF (0.034 AC)
IMPACT AREA S4b
TEMPORARY STREAM IMPACTS
TEMPORARY CONSTRUCTION
ACCESS
17 LF (39 SF)
UPSTREAM CULVERT
430
435
440
445
450
430
435
440
445
450
0+00 0+50 1+00
DOWNSTREAM CULVERT
430
435
440
445
450
430
435
440
445
450
0+00 0+50 1+00
NOTE: CULVERT TO BE BURIED
1' BELOW STREAM BED
NOTE: CULVERT TO BE BURIED
1' BELOW STREAM BED
INV. IN
=436.00
STREAM BED
=437.00
INV. OUT
=435.00
STREAM BED
=435.90
PROPOSED
GRADE
EXISTING
GRADE
PROPOSED
GRADE
EXISTING
GRADE
RIP-RAP BASIN
DISSIPATOR
10.50'x5.58'
ALUMINUM
BOX CULVERT
10.50'x5.58'
ALUMINUM
BOX CULVERT
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Initial Plan Date: 12/29/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
12/29/23
63
8
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STREAM &
WETLAND IMPACT
MAP
C
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SCALE: 1 inch =ft.
0 15 30
30
IMPACT LEGEND
TEMPORARY STREAM
PERMANENT STREAM (NO FUNCTIONAL LOSS)
PERMANENT STREAM (FUNCTIONAL LOSS)
PERMANENT WETLANDS
TEMPORARY WETLANDS
NTS
TOP OF BANK
RIP RAPTOP OF RIP RAP
TO MATCH
PRE-CONSTRUCTION
STREAM CONTOUR
RIPRAP APRON DETAIL
CULVERT
SF/TP SF/TP SF/TP
S
F
/
T
P
SF/TP
SF/TP
SF
/
T
P
T
P
T
P
SF/TP SF/TP SF/TP SF/TP SF/TP SF/TP
LODLODLODLODLODLODLODLODLODLODLODLODLODLODLOD
LOD
LOD
LODLODLODLODLODLOD
LOD LOD LOD LOD LOD LOD
LO
D
LO
D
LO
D
LO
D
LO
D
LO
D
LO
D
L
O
D
LO
D
LOD
LOD
LO
D
LO
D
L
O
D
L
O
D
L
O
D
L
O
D
L
O
D
LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD LOD
TP
TP
TP
TP
SF/TP SF/TP SF/TP
SF/T
P
SF/TP
SF/TP SF/TP SF/TP SF/TP SF/TP SF/TP SF/TP SF/TP
475
4
7
5
475
47
4
474
474
475
47
0
47
5
47
0
4
7
0
46
5
46
5
47
0
47
0
47
0
30' ZONE 1
WETLAND BUFFER
8'' W 8'' W 8'' W 8'' W 8'' W 8'' W 8'' W 8'' W 8'' W 8'' W 8'' W 8'' W
OS
16
WETLAND C
LIMITS OF DISTURBANCE
SILT FENCE/TREE
PROTECTION FENCE
20' PUBLIC
DRAINAGE
EASEMENT
FLATIRON FOREST DRIVE
SCM 1
LIMITS OF DISTURBANCE
TREE PROTECTION FENCE
50' ZONE 2
WETLAND BUFFER
RIPRAP
DISSIPATOR (TYP)
PERMANENT WETLANDS PREVIOUSLY
PERMITTED UNDER USACE AID
SAW-2022-01047 AND NCDWR #20221471v2
20' ZONE 2
WETLAND BUFFER
30' ZONE 1
WETLAND BUFFER
24
"
R
C
P
C
L
A
S
S
I
I
I
IMPACT AREA W4
PERMANENT WETLAND IMPACTS
ROAD CROSSING AND GRADING
856 SF (0.020 AC)
k:
\
2
2
\
2
2
-
0
1
3
0
\
2
2
0
1
3
2
-
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#
:
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Initial Plan Date: 12/29/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
12/29/23
63
8
H
A
M
L
E
T
S
C
H
A
P
E
L
R
O
A
D
|
CH
A
T
H
A
M
C
O
U
N
T
Y
,
N
C
2
7
3
1
2
IM
P
A
C
T
M
A
P
S
FL
A
T
I
R
O
N
F
O
R
E
S
T
DRN: EB DGN: WR CKD: RT
WETLAND IMPACT
MAP
D
E
N
W
S
SCALE: 1 inch =ft.
0 15 30
30
IMPACT LEGEND
PERMANENT WETLANDS
CULVERT
SLOPE RIP-RAP AT 2:1 TO
EXISTING IF PLAIN END
WO
(P
I
P
E
D
I
A
M
E
T
E
R
)
(N
O
M
I
N
A
L
)
1
3
2
:
1
2
:
1
2:1
2:1
2:1
LE
V
E
L
LB (LENGTH OF BASIN)
LS (LENGTH OF POOL)LA (LENGTH OF APRON)
WB (
W
I
D
T
H
O
F
B
A
S
I
N
)
DISSIPATOR POOL
(HORIZONTAL FLOOR)
S
L
O
P
E
T
O
M
A
T
C
H
E
X
I
S
T
I
N
G
C
H
A
N
N
E
L
A
T
E
N
D
O
F
A
P
R
O
N
SLO
P
E
T
O
M
A
T
C
H
EXI
S
T
I
N
G
C
H
A
N
N
E
L
AT E
N
D
O
F
A
P
R
O
N
RIP-RAP LINING
SEE TABLE FOR SIZE AND DEPTH
LEVEL
LEVEL
RIP-RAP TO EXISTING GRADE
APRON
INCISE PIPE FOR AQUATIC PASSAGE
(SEE PLAN & TABLES FOR INVERT)
TW (TAILWATER)
YO YB
LB (LENGTH OF BASIN)
LS (LENGTH OF POOL)LA (LENGTH OF APRON)
CHANNEL ELEVATION
(PIPE INCISED)
T2
T1
T1
T1
RIP RAP THICKNESS
T1 = 2d50 OR 1.5dMAX
T2 = 3d50 OR 2 dMAX
(SEE DIMENSION TABLE)
GEOTEXTILE FABRIC
(NCDOT STANDARD
SPECIFICATION
SECTION 1056-TYPE 2)
END OF APRON TO CONFORM
TO EXISTING STREAM CHANNEL
(INCISE RIP-RAP TO MATCH
EXISTING CROSS-SECTION)
RIP RAP LINING
SEE TABLE FOR SIZE AND DEPTH
SEE PROFILE SEE PROFILE
PLAN
PROFILE
21
2 1 LEVEL
INCISE PIPE FOR AQUATIC PASSAGE
(SEE PLAN & TABLES FOR INVERT)
RIP-RAP LINING
SEE TABLE FOR SIZE AND DEPTH
GEOTEXTILE FABRIC
(NCDOT STANDARD
SPECIFICATION
SECTION 1056-TYPE 2)
WO
(PIPE DIAMETER)
(NOMINAL)
2
1
2
1
2 1 21
hS (POOL DEPTH)
PIPE BEYOND
RIP-RAP LINING
SEE TABLE FOR SIZE AND DEPTH
GEOTEXTILE FABRIC
(NCDOT STANDARD
SPECIFICATION
SECTION 1056-TYPE 2)
WATER SURFACE PROFILE
AT DESIGN FLOW
2
1 21
PIPE BEYOND
RIP-RAP LINING
SEE TABLE FOR
SIZE AND DEPTH
GEOTEXTILE FABRIC
(NCDOT STANDARD SPECIFICATION
SECTION 1056-TYPE 2)
LEVEL
APRON
(LEVEL)
PIPE BEYOND
RIP-RAP LINING
SEE TABLE FOR SIZE AND DEPTH
GEOTEXTILE FABRIC
(NCDOT STANDARD
SPECIFICATION
SECTION 1056-TYPE 2)
WB (WIDTH OF BASIN)
(AT END OF APRON)
"A"
"A""B""C""D"
"B"
"C"
"D"
SECTION "A-A"
SECTION "B-B"
SECTION "C-C"
SECTION "D-D"
END OF APRON TO CONFORM TO EXISTING
STREAM CHANNEL (INCISE RIP-RAP TO
MATCH EXISTING CROSS-SECTION)
EXISTING GRADE
EXISTING GRADE
PROPOSED GRADE
PROPOSED GRADE
PROPOSED GRADE
PROPOSED GRADE
WATER SURFACE PROFILE
AT DESIGN FLOW
WATER SURFACE PROFILE
AT DESIGN FLOW
WATER SURFACE PROFILE
AT DESIGN FLOW
WATER SURFACE PROFILE
AT DESIGN FLOW
T2
EXISTING STREAM
CHANNEL BOTTOM
T1
T1
T1
RIP-RAP BASIN ENERGY DISSIPATOR
BASED ON HEC-14
NOT TO SCALE
INVERT AT END OF PIPE
(PIPE INCISED FOR AQUATIC
PASSAGE)
LEVEL
hS (POOL DEPTH)
k:
\
2
2
\
2
2
-
0
1
3
0
\
2
2
0
1
3
2
-
f
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a
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i
r
o
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f
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s
t
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#
:
F
-
1
4
7
9
| t
:
9
1
9
.
4
6
9
.
3
3
4
0
| w
w
w
.
w
i
t
h
e
r
s
r
a
v
e
n
e
l
.
c
o
m
Initial Plan Date: 12/29/23
Revisions:
1 02/08/23
PER NCDEQ COMMENTS
WR Job No.
02220132
DATE
12/29/23
63
8
H
A
M
L
E
T
S
C
H
A
P
E
L
R
O
A
D
|
CH
A
T
H
A
M
C
O
U
N
T
Y
,
N
C
2
7
3
1
2
IM
P
A
C
T
M
A
P
S
FL
A
T
I
R
O
N
F
O
R
E
S
T
DRN: EB DGN: WR CKD: RT
RIP-RAP STILLING
BASIN DETAILS
E