20200820 Ver 1_USACE restoration approval_20220621

Strickland, Bev
From: Bailey, David E CIV USARMY CESAW (USA) <[e-mail]>
Sent: Tuesday, June 21, 2022 2:26 PM
To: Michael Brame
Cc: Homewood, Sue; Earl Davis; David Brame; Barry Siegal; Amanda Williams
Subject: [External] RE: Permit Non -Compliance, NWP 29 - Oak Ridge Landing, Oak Ridge,
Guilford County; SAW-2020-01090
Attachments: 3962.4_Oak Ridge Rd_Restoration Plan_6.8.22.pdf
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Hi Michael, and thank you for your email. The proposed plan (attached) is acceptable to the Corps. Per our letter, the
work must be completed no later than July 21, 2022. Submit photos of the completed work within7 days of completion.
Please let me know if you have any questions.
-Dave Bailey
David E. Bailey, PWS
Regulatory Project Manager
US Army Corps of Engineers
CE-SAW-RG-R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Mobile: [phone]
Office: [phone], Ext. 30.
Fax: [phone]
Email: [e-mail]
We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is
located at: https://regulatory.ops.usace.army.mil/customer-service-survey/
Thank you for taking the time to visit this site and complete the survey.
From: Michael Brame <[e-mail]>
Sent: Friday, June 10, 2022 9:55 AM
To: Bailey, David E CIV USARMY CESAW (USA) <[e-mail]>
Cc: [e-mail]; Earl Davis <[e-mail]>; David Brame <[e-mail]>;
Barry Siegal <[e-mail]>; Amanda Williams <[e-mail]>
Subject: [URL Verdict: Neutral][Non-DoD Source] RE: Permit Non -Compliance, NWP 29 - Oak Ridge Landing, Oak Ridge,
Guilford County; SAW-2020-01090
Good Morning David,
1

The attached plan has been prepared to address the head-cut/erosion located up -gradient of the culvert as specified in
the Permit Non -Compliance notification that was issued for the site. Please let us know if you need additional
information or if the attached plan is acceptable. Thank -you for your assistance.
Sincerely,
Michael T. Brame
336.708-4620 (c)
336.310.4527 (o)
PO Box 128
Kernersville, NC 27285
www.pilotenviro.com
[e-mail]
PI1.O1"
PILOT E N V I R O N M E N T A L, I N C
From: Bailey, David E CIV USARMY CESAW (USA) <[e-mail]>
Sent: Friday, May 13, 2022 7:55 AM
To: Barry Siegal <[e-mail]>; Amanda Williams <asiegal [e-mail]>
Cc: [e-mail]; Earl Davis <[e-mail]>; Michael Brame
<[e-mail]>; David Brame <[e-mail]>
Subject: Permit Non -Compliance, NWP 29 - Oak Ridge Landing, Oak Ridge, Guilford County; SAW-2020-01090
All,
Please see the attached Non -Compliance notice for the above referenced project. Please let me know if you have any
questions.
Sincerely,
Dave Bailey
David E. Bailey, PWS
Regulatory Project Manager
US Army Corps of Engineers
CE-SAW-RG-R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Mobile: [phone]
Office: [phone], Ext. 30.
Fax: [phone]
Email: [e-mail]
We would appreciate your feedback on how we are performing our duties. Our automated Customer Service Survey is
located at: https://regulatory.ops.usace.army.mil/customer-service-survey/
Thank you for taking the time to visit this site and complete the survey.
2

PLnly)
PILOT
June 8, 2022
US Army Corps of Engineers
Attn: Mr. David E. Bailey
Regulatory Project Manager
CE-SAW-RG-R
3331 Heritage Trade Drive, Suite 105
Wake Forest, North Carolina 27587
Reference: Restoration Repair Plan
Oak Ridge Landing
Oak Ridge, Guilford County, North Carolina
Pilot Project 3962.4
SAW-2020-01090
Dear Mr. Bailey:
Pilot Environmental, Inc. (Pilot), on behalf of Oak Ridge Landing Partners, LLC, has prepared this
repair plan to address the head-cut/erosion concerns at the above referenced location to address
the Notification of Permit Noncompliance issued by your office on May 13, 2022. As indicated,
Items 1 and 2 of the non-compliance letter have or are currently being addressed. The purpose
of this repair plan is to address Item 3 of the non-compliance letter.
3) Excavation to install the inlet of the authorized stream crossing has resulted in a 2-3 foot
deep head -cut (see attached pictures) currently eroding into Wetland WA/WAA at the
edge of the existing natural gas corridor to the northwest, indicating inconsistency with
permitted plans (attached) on Sheet 14 of 17 non-compliance with NWP 29 General
Condition 2 and 14;
The following repairs are proposed for USACE approval to stabilize/correct the head -cut currently
eroding into Wetland WA/WAA up -drainage of the culvert inlet at the edge of the existing natural
gas corridor. A rock vein will be installed to stabilize the stream, correct the head -cutting and
retain the upgradient wetland. A constructed riffle will be installed to establish a stable channel
and direct flow over the structure and into the culvert invert. Drawings that detail the proposed
repair and construction sequence are included as attachments.
PO Box 128, Kernersville, NC 27285
www.pilotenviro.com

Pilot Project 3962.4
June 8, 2022
We appreciate your review and assistance and are requesting your approval prior to beginning
work. Please contact us at 336.708.4997 if you have any questions during your review.
Respectfully submitted,
PILOT ENVIRONMENTAL, INC.
David S. Brame, PWS
Project Manager
Attachments: Drawings 1-6
Copies furnished bye -mail:
Sue Homewood, NCDEQ-DWR
Earl Davis, Guilford County Government
Michael T. Brame, PWS
Principal

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- 1
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0.
Legend
Constructed Rock Vein
Constructed Riffle
Culvert
Bank Stabilization Area
Existing Headwall
Wetland
Existing Stream
Profile
Station Points
Drawing 1
Source: Pilot GPS Data
Current headcut
location
PIIOY "" r.
•
PILOT E N V I R O N M E N T A E. I N C
20
Feet
Repair Plan
Oak Ridge Landing
Oak Ridge, Guilford County, NC
Pilot Project 3962.4

Relative Elevation (Ft)
105
100
95
90
85
80
75
70
Longitudinal Profile
f Existing Elevation f Elevatio
Station Elevation Condition
0 88.95
5 88.75 Headcut - Existing Elevation
5 88.75 Begin Backfi l l
7 88.75 Begin Riffle
16 88.25 Construct Rock Vane - Top
16 86.98 Construct Rock Vane - Bottom
33 86.74 Existing Culvert Invert
33 100 Top of Headwall
Existing Wetland Elevation
0
5
15 20
Station (Ft)
2F
Drawing 2
PILOT EHVIROHMEM1TAL.IHC
Longitudinal Profile
Oak Ridge Landing
Oak Ridge, Guilford County, NC
Pilot Project 3962.4

106.5
106
w 105.5
z
0
H 105
w
w 104.5
104
Typical Stream Channel Cross -Section
Tie to Existing Grade
103.5
0
Tie to Existing Grade
Flood Prone Bench Flood Prone Bench
1- Min. 5 Ft
6 In.
0-2 In. Rise Across Bench L
5
6 Ft Min. 5 Ft
L2Ftl
10 15
STATION (FT)
Elevation Difference
Station from Thalweg (Inches)
0 26
5 8
10 6
12 0
13 0
14 0
16 _ 6
21 8
27 26
20
Proposed Elevation
25 30
Drawing 3
PILOT E N V I R O N M E N T A L. I N C
Cross -Section Profile
Oak Ridge Landing
Oak Ridge, Guilford County, NC
Pilot Project 3962.4

Construction sequencing:
1) Contractor shall steak out proposed stream and stream bed alignment.
2) Install temporary coffer dam or conduct work during period of no flow so that all work can be performed in
the dry.
3) Grade stream, stream bed alignment to elevations specified on Drawings 1 through 3. Streambanks shall be
laid back smoothly and gradually as indicated on Drawing 3 and as shown in photograph on Drawing 6.
Sheer or steeply sloping stream banks are not permissible.
4) Install rock vane (Drawing 5) structure at location and invert elevation specified on Drawing 2.
5) Install filter fabric on up -gradient sides of vane structure as specified (Drawing 5).
6) Prepare finish grades around structures and streambanks. Excavate riffle sections to allow for installation of
riffle bed material at specified finished streambed elevations to be installed following installation of coir
fiber matting on stream banks (riffle section only).
7) Seed and straw along stream banks.
• Use Native Wetland Seed Mix to specifications per seed mix. Generally, 1/2 lb. per 1,000SF should be
applied.
• A contractors blend of permanent and temporary seed shall be applied in addition to the wetland seed
mix.
7) Install woven geotextile blanket composed of 100% biodegradable, natural coconut (coir) fiber matting
over seeded and strawed stream banks. Note: Matting shall extend from stream bank toe slope to beyond top
of bank.
8) Install riffle materials (Drawing 6) within riffle section to elevations specified on Drawing 2, while
overlapping erosion control coir matting on stream banks. Riffles shall be tamped with the knuckle to clear
voids, create a thwalweg within the channel and achieve the specified elevations.
9) Ensure final grades on remainder of project area, including bankful benches.
10) Seed and straw the remainder of the disturbed areas.
• Use Native Wetland Seed Mix to specifications per seed mix within the flood prone benches. Generally,
1/2 lb. per 1,000SF should be applied depending on seed mix.
• A contractors blend of permanent and temporary seed shall be applied in addition to the wetland seed
mix and on remainder of disturbed areas..
11) Install coconut fiber erosion control coir surface blanket (0.5 Ib/yd2) over areas not subject to stream flow
and as needed for sloping areas.
Drawing 4
Construction Sequencing
PILOT ENVIRONMENTAL,INC
Construction Details
Oak Ridge Landing
Oak Ridge, Guilford County, NC
Pilot Project 3962.4

Rock Vane Detail
Filter fabric
ICEss���ts�j��;ft
*i �Ya�ri �'!�w �7� �r��
t l titwE r 441'tiviimprop-
Constructed riffle
- Mix of various
size coble-gravel
substrate (See
Drawing 6).
Filter fabric
Profile A
Header Rock
Footer Rock
5-7°
• Construct vane structure by first shaping the bankfull channel to the grades specified, including scour pools and bed
substrate. Next, excavate enough bed material to place the boulders and bed material overlay. Placement of
boulders shall start at the center of the stream, or invert, and proceed outward to the banks. First, place footing
boulders and surface boulders at the channel invert and then check the elevations of the inverts. Once the inverts
have been established the remainder of the footing and surface boulders shall be placed tightly against each other,
minimizing voids. The vane arms of the cross vane shall slope up to the bank at the elevations and slopes indicated
on the drawings. Fill the voids on the upstream side of surface boulders with gravel such that water will flow over
the surface boulders rather than through gaps in the boulders. Hand placement of interstitial mix (bed material)
will be necessary to provide adequate filling of all voids between boulders.
• Boulders - All boulders, including surface boulders and footing boulders, shall be no less than 24"x24"x24". All
boulders placed in the active channel between bankfull lines must be placed on a footing boulder.
• Footing Boulders shall be off -set no less than 24 inches from the header boulder so that water cascades from the
header onto the footer.
• Filter fabric shall consist of a non -woven geotextile fabric with a minimum weight of 8oz/sy.
• Bed material aggregates shall be gravel or crushed stone. Aggregates shall be composed of clean, hard, durable,
mineral particles free from organic matter, clay balls, soft particles, or other substances that would interfere with
the draining properties of the aggregates. This material shall be placed with typical thickness of 12-inches. Either
use an approved stock -pile of river alluvium or mix equal parts Riprap, 2-6 inch diameter (0.5 to 11 lbs.) and 57
stone, 1/2-inch to 11/2 diamter. The surface of placed bedding material shall be thoroughly chinked and filled with
the smaller stones by scattering and tamping.
Drawing 5
Rock Vane
PILOT ENVIRONMENTAL,IN[
Construction Details
Oak Ridge Landing
Oak Ridge, Guilford County, NC
Pilot Project 3962.4

Typical view of constructed riffle. Note coir
matting is overlapped by riffle material.
Water Flow
Longitudinal Profile
Glide
Cross -Section Profile
Live Stakes
Normal
water
level
Coir Fiber Mat
Aggregate to be buried below natural channel elevation
• RIFFLES: Bed material aggregates shall be gravel or crushed stone. Aggregates shall be composed of clean, hard,
durable, mineral particles free from organic matter, clay balls, soft particles, or other substances that would interfere
with the draining properties of the aggregates. This material shall be placed with typical thickness of less than
24-inches. Either use an approved stock -pile of river alluvium or mix equal parts Riprap, 2-6 inch diameter (0.5 to
11 lbs.) and 57 stone, 1/2-inch to 11/2 diameter. The surface of placed bedding material shall be thoroughly chinked
and filled with the smaller stones by scattering and tamping.
• Final Grade: Following construction of in -stream structures, the channel shall be final graded to provide a smooth
transition around the structures and between proposed and existing slopes in preparation of final restoration. The
constructed stream channel shall be restored as soon as possible by seeding in accordance with these plans and
specifications. The excavated channel shall be fully restored and vegetated, if possible, before flows are introduced
to the new channel
Drawing 6
Constructed Riffle
PILOT E N V I R O N M E N T A L, I N C
Construction Details
Oak Ridge Landing
Oak Ridge, Guilford County, NC
Pilot Project 3962.4