20201888 Ver 1_ePCN Application_20210118

Kimley»>Horn
January 18, 2020
Ms. April Norton
U.S. Army Corps of Engineers
Raleigh Regulatory Field Office
3331 Heritage Trade Drive, Suite 105
Wake Forest, NC 27587
Ms. Stephanie Goss
NC Division of Water Resources
Water Resources — Water Quality Regional Operations Section
3800 Barrett Drive
Raleigh, NC 27609
RE: Nationwide Permit 27 and 3 Application —
Emergency Watershed Protection Streambank Repair: Site 1 & Site 2 (EWP 005 & 006)
City of Durham, Durham County, North Carolina
Dear Ms. Norton and Ms. Goss:
On behalf of our client, the City of Durham — Department of Public Works, Kimley-Horn is submitting
the attached application for authorization under Nationwide Permit (NWP) #27 and #3 for the above
referenced project in Durham County. The purpose of the proposed project is to restore and stabilize
streams at four sites that experienced damage during Hurricane Florence, and this permit is for Site 1
and Site 2 of the overall project. The stream restoration and stabilization aim to improve the water
quality functions of the stream and floodplain through enhancement of the natural ecosystem and
riparian community, control and reduction of streambank erosion, and improvement of aquatic and
terrestrial habitat. Additionally, the project is proposing the repair and maintenance of several existing
aerial waterline and sewer crossings that were damaged during Hurricane Florence. Sites 1 and 2 of
the project consist of the repair and stabilization of a length of Ellerbe Creek and an unnamed
tributary (stream S1) as well as the repair and replacement of an existing aerial waterline crossing.
Kimley-Horn staff delineated the project study area on June 2, 2020 and identified 1 wetland (W1)
and 9 streams (S1-S8 and Ellerbe Creek). A Preliminary Jurisdictional Determination (SAW-2020-
01176) was issued by April Norton of the USACE on April 12, 2020. A Buffer Determination (NBRRO
#20-207) was issued by Erin Deck of the NCDWR on August 11, 2020.
The Site 1 and Site 2 proposed stream repairs will include the grading of damaged and unstable
stream banks to match natural channel contours, the placement of rip rap and boulder toe protection
along the stream banks to provide stabilization, and the installation of rip rap embankment protection
at drainage swales to prevent future erosion and sedimentation. The project is also proposing the
construction of log J-hook riffles within the stream to establish grade control, facilitate sediment
transport, and enhance aquatic species habitat. The Piedmont Regional Hydraulic Geometry Curve
data was used as a reference point for the proposed stream contours and grade control structures.

Ki m ey >>> H o r n Page 2
The proposed work was designed to match natural conditions found along Ellerbe Creek. As part of
the project, stream banks that have been graded back will be replanted with native live stakes, bare
roots, and herbaceous plugs to promote vegetation establishment and restore the overall function of
the riparian buffers. The project is also proposing supplemental hand planting along the streambank
of Ellerbe Creek and stream S1, outside of the LOD, which includes selective live stake and bare root
installation.
In addition, Site 1 and Site 2 of the project proposes to perform maintenance repair on an existing
aerial waterline crossing over stream S1 that was damaged during Hurricane Florence. As part of this
repair and maintenance, the existing aerial waterline crossing will be converted to an underground
trenchless crossing that will be directionally drilled below the riparian buffers and more than 8' below
the streambed. The bore pit locations for the waterline installation are proposed outside of riparian
buffers.
Permanent, no net loss of water impacts and temporary impacts to Ellerbe Creek and its tributaries
will result from the proposed stream restoration. Wetland impacts have been avoided entirely by the
proposed project. The proposed stream restoration will result in permanent and temporary impacts to
the Neuse River Buffer Zones along Ellerbe Creek and its tributaries. All temporarily impacted areas
will be restored and replanted upon completion of the proposed stream restoration.
Permanent and temporary impacts will result from the repair and replacement of an existing aerial
waterline at Site 1. The proposed replacement will be bored beneath the stream and the bore pits
have been located outside of the Neuse River Riparian Buffer Zones. The proposed boring will
require new easement to be acquired through the buffer zones, resulting in permanent impacts.
Temporary impacts will be restored to pre -construction contours and re -vegetated upon completion of
the proposed project.
No compensatory mitigation is proposed as part of this permit application. The proposed stream
restoration and enhancement serves to improve the water quality within the watershed and will not
result in a loss of water; therefore, no stream mitigation is proposed. Additionally, in accordance with
the Neuse River Basin Buffer Rules, buffer impacts resulting from "Restoration or enhancement" and
"Utility - Non -Sewer Underground Lines" are considered allowable buffer impacts and therefore do
not require mitigation.
If there is any additional information you need to assist in the processing of this NWP application,
please do not hesitate to contact me at [phone] or Mackenzie. Richards @Kimley-Horn.ccm.
Sincerely,
Mackenzie Richards
Environmental Scientist

DWR
Division of Water Resources
Pre -Construction Notification (PCN) Form
October 26, 2020 Ver 3.3
Initial Review
Has this project met the requirements for acceptance in to the review process?*
r Yes
r No
Is this project a public transportation project?*
C Yes r No
Change only if needed.
BIMS # Assigned
20201888
Is a payment required for this project?*
r No payment required
r Fee received
r Fee needed - send electronic notification
Reviewing Office *
Central Office - [phone]
Information for Initial Review
Version#*
1
What amout is owed?*
r $240.00
r $570.00
Select Project Reviewer*
Rick Trone:eads\rvtrone
1a. Name of project:
Emergency Watershed Protection (EWP) Streambank Repair: Sites 1 & 2
1a. Who is the Primary Contact?*
Mackenzie Richards
1b. Primary Contact Email:* 1c. Primary Contact Phone:*
[e-mail] [phone]
Date Submitted
1/18/2021
Nearest Body of Water
Ellerbe Creek
Basin
Neuse
Water Classification
WS-N; NSW
Site Coordinates
Latitude: Longitude:
36.017362-78.894166
Pre -Filing Meeting Information
ID# Version
20201888 1
Pre -fling Meeting or Request Date*
12/4/2020
Attach documentation of Pre -Filing Meeting Request here:*
DWR Pre -Filing Meeting Request Form.pdf 55.83KB
A. Processing Information C^U
County (or Counties) where the project is located:
Durham

Is this a NCDMS Project
r Yes r No
Is this project a public transportation project?*
r Yes r No
la. Type(s) of approval sought from the Corps:
* Section 404 Permit (wetlands, streams and waters, Clean Water Act)
r Section 10 Permit (navigable waters, tidal waters, Rivers and Harbors Act)
Has this PCN previously been submitted?*
r Yes
r No
1b. What type(s) of permit(s) do you wish to seek authorization?
W Nationwide Permit (NWP)
r Regional General Permit (RGP)
r Standard (IP)
1c. Has the NWP or GP number been verified by the Corps?
r Yes r No
Nationwide Permit (NWP) Number: 27 - Restoration
Nationwide Permit (NWP) Number: 03 - Maintenance
NWP Numbers (for multiple NWPS):
1d. Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - Regular
r Non-404 Jurisdictional General Permit
r Individual Permit
le. Is this notification solely for the record because written approval is not required?
For the record only for DWR401 Certification:
For the record only for Corps Permit:
r 401 Water Quality Certification - Egress
r Riparian Buffer Authorization
1f. Is this an after -the -fact permit application?*
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
1g. Is payment into a mitigation bank or in -lieu fee program proposed for mitigation of impacts?
r Yes r No
Acceptance Letter Attachment
1h. Is the project located in any of NC's twenty coastal counties?
r Yes r No
1j. Is the project located in a designated trout watershed?
r Yes r No
B. Applicant Information
1d. Who is applying for the permit?
W Owner r Applicant (other than owner)
le. Is there an Agent/Consultant for this project?*
r Yes r No
2. Owner Information
2a. Name(s) on recorded deed:
City of Durham - Department of Public Works
2b. Deed book and page no.:
N/A
2c. Responsible party:
Dana Hornkohl, PE, CFM
2d.Address
*
r Yes r No
r Yes r No

Street Address
101 City Hall Plaza
Address Line 2
City
Durham
Postal / Zip Code
27705
2e. Telephone Number:
[phone]
2g. Email Address:*
Dana. [e-mail]
4. Agent/Consultant (if applicable)
4a. Name:
Mackenzie Richards
4b. Business Name:
Kimley-Horn
4c.Address
Street Address
421 Fayetteville St.
Address Line 2
Suite 600
City
Raleigh
Postal / Zip (ode
27601
4d. Telephone Number:
[phone]
4f. Email Address:*
[e-mail]
Agent Authorization Letter*
02_EWPStreams_SIGNED_Agent Authorization Form_20200506.pdf
State / Rovince / Rion
NC
Country
USA
2f. Fax Number:
State / Province / Rion
NC
Country
USA
4e. Fax Number:
325.64KB
C. Project Information and Prior Project History O
1. Project Information
1b. Subdivision name:
(if appropriate)
1c. Nearest municipality/ town:
Durham
2. Project Identification
2a. Property Identification Number:
Multiple (See Property Owners Map)
2c. Project Address
Street Address
Address Line 2
city
Fbstal / Zip Code
3. Surface Waters
3a. Name of the nearest body of water to proposed project:*
Ellerbe Creek
3b. Water Resources Classification of nearest receiving water:*
WS-IV; NSW
3c. What river basin(s) is your project located in?*
Neuse
2b. Property size:
17
State / Province / Region
Country
3d. Please provide the 12-digit HUC in which the project is located.

030202010403
4. Project Description and History
4a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this application:*
The proposed project, Emergency Watershed Protection (EWP) Streambank Repair: Site 1 & Site 2 (EWP-005 and EWP-006 in the Plans), is located within the Ellerbe Creek riparian
corridor, northeast of Interstate-85 in Durham County, North Carolina. The area surrounding the project is largely composed of residential housing and scattered commercial
development.
4b. Have Corps permits or DWR certifications been obtained for this project (including all prior phases) in the past?*
r Yes r No r Unknown
4d. Attach an 8 1/2 X 11 excerpt from the most recent version of the USGS topographic map indicating the location of the project site. (for DWR)
Fig2_EWPSite1 Site2_USGS Topo.pdf
840.01 KB
4e. Attach an 8 1/2 X 11 excerpt from the most recent version of the published County NRCS Soil Survey map depicting the project site. (for DWR)
Fig4_EWPSite1 Site2_NRCS.pdf 2.95 MB
4f. List the total estimated acreage of all existing wetlands on the property:
0.16
4g. List the total estimated linear feet of all existing streams on the property:
4,788
4h. Explain the purpose of the proposed project:*
The purpose of the proposed project is to restore and stabilize streams at four sites that experienced damage during Hurricane Florence, and this permit is for Site 1 and Site 2 of the
overall project. The stream restoration and stabilization aim to improve the water quality functions of the stream and floodplain through enhancement of the natural ecosystem and
riparian community, control and reduction of streambank erosion, and improvement of aquatic and terrestrial habitat. Additionally, the project is proposing the repair and maintenance of
several eAsting aerial waterline and sewer crossings that were damaged during Hurricane Florence. Sites 1 and 2 of the project consist of the repair and stabilization of a length of
Ellerbe Creek and an unnamed tributary (stream S1) as well as the repair and replacement of an eAsting aerial waterline crossing.
41. Describe the overall project in detail, including indirect impacts and the type of equipment to be used:*
The Site 1 and Site 2 proposed stream repairs will include the grading of damaged and unstable stream banks to match natural channel contours, the placement of rip rap and boulder
toe protection along the stream banks to provide stabilization, and the installation of rip rap embankment protection at drainage swales to prevent future erosion and sedimentation. The
project is also proposing the construction of log ,-hook riffles within the stream to establish grade control, facilitate sediment transport, and enhance aquatic species habitat. The
Piedmont Regional Hydraulic Geometry Curve data was used as a reference point for the proposed stream contours and grade control structures. The proposed work was designed to
match natural conditions found along Ellerbe Creek. As part of the project, stream banks that have been graded back will be replanted with native live stakes, bare roots, and
herbaceous plugs to promote vegetation establishment and restore the overall function of the riparian buffers. The project is also proposing supplemental hand planting along the
streambank of Ellerbe Creek and stream S1, outside of the LOD, which includes selective live stake and bare root installation.
In addition, Site 1 and Site 2 of the project proposes to perform maintenance repair on an eAsting aerial waterline crossing over stream S1 that was damaged during Hurricane
Florence. As part of this repair and maintenance, the eAsting aerial waterline crossing will be converted to an underground trenchless crossing that will be directionally drilled belowthe
riparian buffers and more than 8' belowthe streambed. The bore pit locations for the waterline installation are proposed outside of riparian buffers. Construction equipment typical of
stream repair and utility maintenance projects will be utilized including excavators, dump trucks, drill rigs, and other land clearing equipment.
4j. Please upload project drawings for the proposed project.
09_20210113_SIGNED_EWP Bank Stabilization. pdf 67.6MB
5. Jurisdictional Determinations
5a. Have the wetlands or streams been delineated on the property or proposed impact areas?*
r Yes
Comments:
r No
5b. If the Corps made a jurisdictional determination, what type of determination was made?*
r Preliminary r Approved r Not Verified r Unknown r N/A
Corps AID Number:
SAW-2020-01176
5c. If 5a is yes, who delineated the jurisdictional areas?
...........................
Name (if known): W. Sullivan and M. Richards
Agency/Consultant Company: Kimley-Horn
Other:
O Unknown
5d. List the dates of the Corp jurisdiction determination or State determination if a determination was made by the Corps or DWR
A Preliminary Jurisdictional Determination was issued by April Norton of the USACE on April 12, 2020. A Buffer Determination was issued by Erin Deck of the NCDWR on August 11,
2020.
5d1. Jurisdictional determination upload
07_SAW-2020-01176_Sites 1 and2_PJD_Revised.pdf 1.52MB
08_EWP Streambank Repair_ Site 1 and Site 2_buffer_approval.pdf 3.98MB
6. Future Project Plans
6a. Is this a phased project?*

r Yes
r No
Are anyother NWP(s), regional general permit(s), or individual permits(s) used, or intended to be used, to authorize any part of the proposed projector related activity?
The proposed EWP project is composed of three separate projects located throughout Durham. These three projects (Sites 1 & 2, Site 3, and Site 4) will be permitted as separate
projects. This permit request is for Sites 1 and 2 of the project. No future phases or impacts are proposed as part of this project.
D. Proposed Impacts Inventory
1. Impacts Summary
1a. Where are the impacts associated with your project? (check all that apply):
F Wetlands Pr Streams -tributaries m Buffers
r" Open Waters r Pond Construction
3. Stream Impacts
F3a.
Reason for impact (?)
3b.lmpact type *
3c. Type of impact*
3d. S. name *
3e. Stream Type *
3f. Type of
3g. S. width *
3h. Impact
(?)
Jurisdiction*
length*
Site 1 - Stream Restoration
Permanent
Stabilization
S1 UT to Ellerbe Creek
()ear
Perennial
Both
40
�4�6
feet)
S2
Site 1 - Stream Restoration
Permanent
Stabilization
S3 UT to Ellerbe Creek
( )
Intermittent
Corps
P
15
38
Average (feet)
(linearfeet)
S3
Site 1 - Construction Access
Temporary
Dewatering
S1 (UT to Ellerbe Creek)
Perennial
Both
40
50
Average (feet)
(linear feet)
�
Site 2 - Stream Restoration
Permanent
Stabilization
]F(UT
to Ellerbe Creek )
Perennial
Both
40
111
Average (feet)
(linearfeet)
S5
Site 2 - Stream Restoration
Permanent
Stabilization
Ellerbe Creek
Perennial
Both
50
349
Average (feet)
(linearfeet)
S6
Site 2 - Construction Access
Temporary
Dewatering
S1 (UT to Ellerbe Creek)
Perennial
Both
40
4
Average (feet)
(linearfeet)
S7
Site 2 - Construction Access
Tem ora
P rY
Dewatering
g
Ellerbe Creek
Perennial
Both
50
22
Average (feet)
(lirtearfeet)
3i. Total jurisdictional ditch impact in square feet:
3i. Total permanent stream impacts:
944
31. Total stream and ditch impacts:
1020
3i. Total temporary stream impacts:
76
3j. Comments:
Unavoidable permanent impacts to Ellerbe Creek and its tributaries will result from the restoration and enhancement of the channel and banks,
resulting in no loss of waters. Stream repair, restoration, and enhancement activities will include the grading of damaged and unstable stream banks
to match natural channel contours, the placement of rip rap and boulder toe protection along the stream banks to provide stabilization, and the
installation of rip rap embankment protection at drainage swales to prevent future erosion and sedimentation. The construction of log J-hook riffles
within the stream is also proposed to establish grade control, facilitate sediment transport, and enhance aquatic species habitat. Proposed temporary
impacts to Ellerbe Creek and its tributaries will result from temporary access to facilitate construction/installation of stream enhancement structures,
access for streambank repair, and for temporary dewatering via stream diversion to allowwork in the dry. No permanent or temporary stream impacts
will result from the installation of the underground trenchless waterline via horizontal directional drilling. The bore pit locations are proposed outside of
the stream and the waterline will be drilled apprommately 8 feet below the bottom of the stream channel to avoid impacts. However, temporary impacts
will result from the removal of the existing aerial crossing. This temporarily impacted area is covered under the permanent stream restoration impacts
at Site 1.
6. Buffer Impacts (for DWR)
6a. Project is in which protect basin(s)?
Check all that apply.
17 Meuse r Tar -Pamlico
F Catawba F Randleman
F Goose Creek F Jordan Lake
r" Other
6b. Impact Type
6c. Per or Temp 16d.
Stream name
6e. Buffer mitigation required?
6f. Zone 1 impact
6g. Zone 2 impact
Site 1 - Streambank Stabilization
P
S1 (UT to Ellerbe Creek)
No
2,988
154
Site 1 -Utility Line (10' Wide Easement)
P
S1 (Ui to Ellerbe Creek)
No
665
435
Site 1 - Streambank Stabilization Access
T
S1 (UT to Ellerbe Creek)
No
12,105
4,036
Site 1 - Utility Line Access
T
S1 (UT to Ellerbe Creek)
No
1,757
2,246

Site 2 - Streambank Stabilization
P
Ellerbe Creek
No
1,447
0
Site 2 - Streambank Stabilization Access
T
Ellerbe Creek
No
14,851
3,441
6h. Total buffer impacts:
Zone 1 Zone 2
Total Temporary impacts: 28,713.00 9,723.00
Zone 1 Zone 2
Total Permanent impacts: 5,100.00 589.00
Zone 1 Zone 2
Total combined buffer impacts: 33,813.00 10,312.00
6i. Comments:
Permanent buffer impacts at Sites 1 and 2 will result from streambank stabilization activities including the grading back of stream banks and the
installation of structures to prevent future erosion. Additionally, permanent buffer impacts will occur at Site 1 due to the installation of a directionally
drilled waterline and the conversion of buffer zones to a 10' wide permanent utility easement. Temporary impacts at Sites 1 and 2 will result from the
necessary temporary access to construct the proposed projects. Temporarily impacted areas will be returned to pre-ebsting contours and planted with
native vegetation upon completion of the proposed work.
Supporting Documentation
EWP_Sites1 &2_Impact Figures.pdf 17.67MB
E. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project:
The project has been designed to improve the water quality functions of the streams and the associated floodplains, enhance the natural ecosystem
and riparian community, control and reduce future streambank erosion, and restore aquatic habitat. Temporary construction and staging areas for the
stream repair are confined by the adjacent residences, but have been located outside of jurisdictional areas to the extent possible, while still allowing
the necessary access points to construct the project. Additionally, the waterline that is proposed as part of the utility repair will be installed via
horizontal directional drilling appropmately 8 feet below the stream channel to avoid stream and riparian buffer impacts. The waterline boring pits will
be located in uplands to avoid impacts to riparian buffers.
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques:
Impacts to streams and protected riparian buffers within the corridor will be avoided throughout the construction process by equipment, materials, and
access corridors to the extent possible. Where feasible, staging and construction access routes have been located in upland areas throughout the
corridor. Silt fencing will be installed around the limits of disturbance to help ensure that all construction equipment will remain within the project area
throughout the construction process. Sediment control measures will be used to reduce stormwater impacts to receiving waters and minimize runoff
from the construction sites. Coffer dams and water diversion devices will be installed within the streams to allow for work in the dry. All temporarily
impacted areas will be returned to pre-existing condition and replanted with native vegetation upon completion of construction.
2. Compensatory Mitigation for Impacts to Waters of the U.S. or Waters of the State
2a. Does the project require Compensatory Mitigation for impacts to Waters of the U.S. or Waters of the State?
r Yes r No
2b. If this project DOES NOT require Compensatory Mitigation, explain why:
The proposed stream restoration and enhancement serves to improve the water quality within the watershed and will not result in a loss of water; therefore, no stream mitigation is
proposed. Additionally, in accordance wrath the %use River Basin Buffer rules, buffer impacts resulting from "Restoration or enhancement" and "Utility- Non -Sewer Underground Lines"
are considered allowable buffer impacts and therefore do not require mitigation.
F. Stormwater Management and Diffuse Flow Plan (required by DWR)
1. Diffuse Flow Plan
la. Does the project include or is it adjacent to protected riparian buffers identified within one of the NC Riparian Buffer Protection Rules?
r Yes r No
What type of SCM are you providing?
r Level Spreader
r Vegetated Conveyance (lower SHWT)
r Wetland Swale (higher SMNT)
r Other SCM that removes minimum 30 % nitrogen
W Proposed project will not create concentrated stormwater flow through the buffer
Diffuse Flow Documentation
10_EWP_Sites1&2_EC Details.pdf 7.6MB

2. Stormwater Management Plan
2a. Is this a NCDOT project subject to compliance with NCDOT's Individual NPDES permit NCS000250?*
r Yes r No
2b. Does this project meet the requirements for low density projects as defined in 15ANCAC 02H .1003(2)?
r Yes r No
Comments:
Stormvrater will not be concentrated, collected, or discharged as a result of the proposed streambank repair and utility maintenance. Additionally, as part of the stream repair,
streambanks that have been regraded and disturbed will be replanted with live stakes and bare roots, and will be hand -planted with herbaceous plugs to promote vegetation
establishment, restore the overall function of the riparian buffers, and maintain diffuse flow.
G. Supplementary Information
1. Environmental Documentation
la. Does the project involve an expenditure of public (federal/state/local) funds or the use of public (federal/state) land?*
r Yes r No
1b. If you answered "yes" to the above, does the project require preparation of an environmental document pursuant to the requirements of the National or State (North Carolina)
Environmental Policy Act (NEPA/SEPA)? *
r Yes r No
Comments:*
N/A
2. Violations (DWR Requirement)
2a. Is the site in violation of DWR Water Quality Certification Rules (15ANCAC 2H .0500), Isolated Wetland Rules (15A NCAC 2H .1300), or DWR Surface Water or Wetland Standards or
Riparian Buffer Rules (15A NCAC 2B .0200)?*
r Yes r No
3. Cumulative Impacts (DWR Requirement)
3a. Will this project result in additional development, which could impact nearby downstream water quality?*
r Yes r No
3b. If you answered "no," provide a short narrative description.
The proposed project is a single and complete action and no additional development is anticipated as a result of proposed activity.
4. Sewage Disposal (DWR Requirement)
4a. Is sewage disposal required by DWR for this project?*
r Yes r Nor N/A
5. Endangered Species and Designated Critical Habitat (Corps Requirement)
5a. Will this project occur in or near an area with federally protected species or habitat?*
r Yes r No
5b. Have you checked with the USFWS concerning Endangered Species Act impacts?*
r Yes r No
5d. Is another Federal agency involved?*
r Yes r No r Unknown
5e. Is this a DOT project located within Division's 1-8?
r Yes r No
5f. Will you cut any trees in order to conduct the work in waters of the U.S.?
r Yes r No
5g. Does this project involve bridge maintenance or removal?
r Yes r No
5h. Does this project involve the construction/installation of a wind turbine(s)?*
r Yes r No
5i. Does this project involve (1) blasting, and/or (2) other percussive activities that will be conducted by machines, such as jackhammers, mechanized pile drivers, etc.?
r Yes r No
5j. What data sources did you use to determine whether your site would impact Endangered Species or Designated Critical Habitat?

A review of the North Carolina Natural Heritage Program (NCNHP) Element Occurrence Database (updated October 2020) identifies no known
occurrences of any federally -listed species in or within a 1.0-mile radius of the project area. The proposed project is not anticipated to impact any
federally -listed species or habitat known to occur in Durham County.
Consultation Documentation Upload
6. Essential Fish Habitat (Corps Requirement)
6a. Will this project occur in or near an area designated as an Essential Fish Habitat?*
r Yes r No
6b. What data sources did you use to determine whether your site would impact an Essential Fish Habitat?*
The NOAA Essential Fish Habitat Mapper was reviewed on November 18, 2020. No essential fish habitat was identified within the project area or within
the vicinity of the project.
7. Historic or Prehistoric Cultural Resources (Corps Requirement)
7a. Will this project occur in or near an area that the state, federal or tribal governments have designated as having historic or cultural preservation status?*
r Yes r No
7b. What data sources did you use to determine whether your site would impact historic or archeological resources?*
A review of the State Historic Preservation Office (NCSHPO) HPOWEB GIS Service database performed in January 2021 identified no national register
or determined eligible sites within the project study area, however, one study list historic district, Northgate Park, is located within the project study
area. Additionally, historic resources were located within 1.0 mile of the project study area:
North Durham -Duke Park Historic District Boundary Increase I (Study List Historic District) - located approximately 0.17 miles south of the project area
Geer Cemetery (Determined Eligible) - located approximately 0.50 miles southeast of the project area
Dillard -Gamble Houses (National Register) - located approximately 0.45 mile south of the project area
North Durham -Duke Park District (National Register Historic District) - located approximately 0.67 miles south of the project area
- Mckissick House (Study List) - located approximately 0.90 miles south of the project area
Ephphatha Church (National Register) - located approximately 0.89 miles south of the project area
Foster and West Geer Streets Historic District (National Register Historic District) - located approximately 0.98 miles southwest of the project area
Scott and Roberts Dry Cleaning Plant, Office and Store (National Register) - located approximately 0.92 miles southwest of the project area
Woods Grocery/Pearl Mill Village Historic District Boundary Increase (Study List) - located approximately 0.92 miles southwest of the project area
Pearl Mill Village Historic District (National Register Historic District) - located approximately 0.81 miles southwest of the project area
- Trinity Historic District Boundary Increase (National Register Historic District) - located approximately 0.67 miles southwest of the project area
- Trinity Historic District (National Register) - located approximately 0.66 miles southwest of the project area
Due to the majority of the activity from the project being within and adjacent to the stream, the lack of impact to any historical structures, and the
minimal visual impact resulting from the streambank repair and utility maintenance, it is anticipated that the proposed project will have no effect on any
historical or archaeological resources within the project vicinity.
7c. Historic or Prehistoric Information Upload
8. Flood Zone Designation (Corps Requirement)
8a. Will this project occur in a FEMA-designated 100-yearfloodplain?*
r Yes r No
8b. If yes, explain how project meets FEMA requirements:
It is anticipated that no conveyance area will be gained or lost as a result of the proposed project. If this cannot be achieved, the appropriate FEMA
certifications will be applied for prior to construction.
8c. What source(s) did you use to make the floodplain determination?*
The FEMA Digital Flood Insurance Map (DFIRM) Panel 3720083200K (effective October 19, 2020) was accessed in November 2020. Within the
project area, FEMA-regulated floodways, 1 % annual flood hazard areas, and 1 % future conditions associated with Ellerbe Creek are present.
Miscellaneous
Comments
Miscellaneous attachments not previously requested.
00_EWPSite1 &2_PCN Cover Letter.pdf 127.25KB
04_Fig5_EWPSite1 Site2_parcels.pdf 1.72MB
05_site1 and2_parceltable.pdf 54.2KB
Fig3_EWPSite1 Site2_JDFeat. pdf 1.7MB

Signature
® By checking the box and signing below, I certify that:
• The project proponent hereby certifies that all information contained herein is true, accurate, and complete to the best of my knowledge and belief; and
• The project proponent hereby requests that the certifying authority review and take action on this CWA 401 certification request within the applicable reasonable period of time.
• I have given true, accurate, and complete information on this form;
• I agree that submission of this PCN form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act");
• I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act');
• I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
• I intend to electronically sign and submit the PCN form.
Full Name:
Mackenne Richards
Signature
Date
1/18/2021

AGENT AUTHORIZATION FORM
Name: Dana Hornkohl, P.E., CFM (Senior Engineering Manager)
Address: City of Durham, Public Works Department, 101 City Hall Plaza, Durham NC 27705
Phone: [phone], ext. *30246 or [phone]
Project Name/Description: SSA-1 Emergency Watershed Protection Professional Services Streambank Repair
Date: 05/06/2020
The Department of the Army
U.S. Army Corps of Engineers, Wilmington District
Attention: Andy Williams
Field Office: Raleigh Rmulatory Field Office
Re: Wetland Related Consulting and Permitting
To Whom It May Concern:
The City of Durham - Department of Public Works hereby designates and authorizes Kimley-Horn and Associates, Inc. to
act in my/our behalf as my/our agent solely for the purpose of processing Jurisdictional Determinations, Section 404
permits/Section 401 Water Quality Certification applications, Neuse River Basin Riparian Buffer Determinations and
Authorizations, Jordan Lake Water Supply Watershed Buffer Determinations and Authorizations, and to furnish upon request
supplemental information in support of applications, etc. from this day forward until successful completion of the permitting
process or revocation by the owner.
In addition, I, the undersigned, a duly authorized owner of record of the property/properties identified herein, do authorize
representatives of the Wilmington District, U.S. Army Corps of Engineers (Corps) to enter upon the property herein
described for the purpose of conducting on -site investigations and issuing a determination associated with Waters of the U.S.
subject to Federal jurisdiction under Section 404 of the Clean Water Act and/or Section 10 of the Rivers and Harbors Act of
1899.
Authorized this the 6th day of May 2020
Dana Hornkohl
Print Responsible Party's Name
Cc: Paul Wojoski
NC Division of Water Resources
401 & Buffer Permitting Unit
1650 Mail Service Center
Raleigh, NC 27699-1650
Responsible Party's Signature

N
F/rr �s rY
Legend
Project Study Area
CITY OF
DURHAM
0-6 -r/
A / r
sl ��
/ I0 300 600
Feet
Figure 2: USGS Topographic Map
EWP Streambank Repair: Site 1 and Site 2
Durham, Durham County, NC
June 2020

i�
w
A'
r
;.
Legend �`►�",'� -
1
Project Study Area - 0 300 600
Figure 4: NRCS Soil Survey
EWP Streambank Repair: Site 1 and Site 2
CITY OF Durham, Durham County, NC
DURHAM June 2020

Tw
Jr.
de
w
IA
Legend
Intermittent Stream
—No— Perennial Stream
0 250 500
rJ-1 Project Study Area Feet
Figure 3: Jurisdictional Features Map
EWP Streambank Repair: Site 1 and Site 2
CITY OF Durham, Durham County, NC
MDURHAM June 2020

�
41r
Legend
Project Study Area
Durham Parcel Boundaries `'_A,_
CITY OF
DURHAM
porw"
�;- A
51
5
57
52
0 250 500
Feet
Figure 5: Adjacent Properties
EWP Streambank Repair: Site 1 and Site 2
Durham, Durham County, NC
June 2020

MAP #
PIN
OWNER NAME
SITE ADDRESS
0
0832-09-15-2950
CITY OF DURHAM
200 W CLUB BLVD
1
0832-09-15-0728
CITY OF DURHAM
1800 ACADIA ST
2
0832-09-05-7626
GOOD SANDRA L
401 W CLUB BLVD
3
0832-13-14-7958
THOMAS MARA
2105 FARTHING ST
4
0832-09-15-5739
HAMPTON MARY ANNE
107 DAVIDSON AVE
5
0832-09-05-8792
CITY OF DURHAM
311 W CLUB BLVD
6
0832-09-15-0681
CITY OF DURHAM
1800 ACADIA ST
7
0832-09-15-2771
CITY OF DURHAM
123 DAVIDSON AVE
8
0832-09-05-6488
HAIRSTON BARRY LEE
2111 GLENDALE AVE
9
0832-09-05-5535
WEST4TH LLC
409 W CLUB BLVD
10
0832-09-15-6743
HAMPTON MARY ANNE
2300 FARTHING ST
11
0832-09-05-9516
CITY OF DURHAM
2100 GLENDALE AVE
12
0832-09-15-4174
CITY OF DURHAM
90 ST PAUL ST
13
0832-09-15-7222
SAMUEL LYNETTE
2113 FARTHING ST
14
0832-09-15-7126
KING HEATHER R
2111 FARTHING ST
15
0832-09-05-5487
COUNTY OF DURHAM
2100 GLENDALE AVE
16
0832-09-05-6482
COUNTY OF DURHAM
2100 GLENDALE AVE
17
0832-09-05-6368
CITY OF DURHAM
2100 GLENDALE AVE
18
0832-09-15-7333
KIELBASINSKI KAREN A
2201 FARTHING ST
19
0832-09-15-5598
CITY OF DURHAM
104 DAVIDSON AVE
20
0832-09-05-6585
AGUILAR JOSE C
2115 GLENDALE AVE
21
0832-09-15-7024
JOHNSON DEIRDRE A
2107 FARTHING ST
22
0832-09-15-7120
GRADY TRISHA LAYNE
2109 FARTHING ST
23
0832-09-05-8390
CITY OF DURHAM
2110 GLENDALE AVE
24
0832-13-14-7933
JOHNSON BOBBY G
2103 FARTHING ST
30
0832-09-15-4738
CITY OF DURHAM
109 DAVIDSON AVE
31
0832-09-05-5578
WEST4TH LLC
407 W CLUB BLVD
32
0832-09-15-3561
CITY OF DURHAM
122 DAVIDSON AVE
33
0832-09-15-5349
CITY OF DURHAM
99 ST PAUL ST
34
0832-09-15-0385
CITY OF DURHAM
100 DAVIDSON AVE
35
0832-09-15-3367
CITY OF DURHAM
95 ST PAUL ST
41
0832-09-05-6372
CITY OF DURHAM
2109 GLENDALE AVE
42
0832-13-14-8890
MARTIN MILDRED F
100 HIGBEE ST
43
0832-13-14-9769
VAUGHN CHARLES T
104 HIGBEE ST
44
0832-13-24-0788
SOLES RICHARD L
108 HIGBEE ST
45
0832-13-24-2706
CATES ANGELA SUE
112 HIGBEE ST
46
0832-09-05-4552
COUCH DEVELOPMENT COMPANY INC
411 W CLUB BLVD
47
0832-09-05-7218
CITY OF DURHAM
2107 GLENDALE AVE
48
0832-09-15-1114
ELLERBEE CREEK WATERSHED ASSOC
2116 GLENDALE AVE
49
0832-13-24-0728
DOBBINS CARRIE LAUREN
106 HIGBEE ST
50
0832-13-14-7864
BAILEY DIANN ELIZABETH
2101 FARTHING ST
51
0832-13-24-1746
KHALSA DIDAR SINGH
110 HIGBEE ST
52
0832-13-24-3777
NAVIGATOR REAL ESTATE
1917 N ROXBORO ST
53
0832-09-05-9129
CITY OF DURHAM
2000 GLENDALE AVE
54
0832-13-15-2000
KING WILLIAM BRINKLEY
2100 GLENDALE AVE
55
0832-09-05-5450
COUNTY OF DURHAM
2111 EDGEVALE RD
56
0832-13-14-4974
NC STATE HWY COMMISSION
2116 GLENDALE AVE
57
0832-13-24-2777
ISOUTHERN REPAIR SERVICE INCORP
1116 HIGBEE ST

I • - j r
Delineated Features Legend Z.,
'. . �. Z�
cn
Intermittent Stream , 1�
1 � +
Perennial Stream
`? Neuse River Riparian Buffer Zone 1 (30') -
M Neuse River Riparian Buffer Zone 2 (20') Farthing st
- 4 r .
i
14
Ae
4
�RWWWO
Ellerbe S5
Proposed Impacts Legend
Proposed Stream Structures Buffer Zone 1 Permanent Stream Restoration Impacts _ y,
Proposed Grading Buffer Zone 1 Temporary Stream Restoration Impacts f
Temporary Stream Impacts Buffer Zone 2 Permanent Stream Restoration Impacts {
Permanent Stream Impacts Buffer Zone 2 Temporary Stream Restoration Impacts
LOD ;' 0 60 120
Feet
Figure 613: Permit Impact Drawings
CITY OF Site 2 (EWP 006) EWP Streambank Repair: Site 2 (EWP 006)
Durham, Durham County, NC
DURHAM January 2021

EWP Sites 1 and 2 Impact Table
Site
Reason
Wetlands (ac.)
I Streams (LF)
Neuse Buffer Zone 1(ft2)
Neuse Buffer Zone 2 (ftz)
-
-
..................................................................................................................................................................................................................................................................
Permament Temporary
Permament Temporary
Permament Temporary
Permament Temporary
Site 1
Stream Restoration
- -
484 50
2,988 12,105
154 4,036
Site 1
Utility Crossing
- -
- -
665 1,757
435 2,246
Site 2
Stream Restoration
- -
460 26
1,447: 14,851
0: 9,441
Totals
- -
944 € 76
5,100 € 28,713
589 € 15,723

DocuSign Envelope ID: 62AD21 137-8585-45EF-13413F-4830238571A4
____"'Y8" TO 12" SPIKES VARY TIMBER SIZE GRIP DRAG CHAIN
FILL PORT WITH CAP EVERY 2 FT UNEVEN SURFACE FOR
DETAILA INTERNAL STABILIZATION BAFFLE IMPROVED TRACTION
WATER SURFACE
ELEVATION (WSE) OF DIVERTED
La FILL PIPE 7.0' MIN. OFFSET STREAM BASE FLOW.
7/
WIDTH FROM BANK /7/
0
Wl = 3D o00 00 -
0 00000 00 - CHOOSE TIMBER WITH SIZE
A 00000000000o A DRY WORK MIN. COFFER O O WISE OF DIVERTED BASE AND STRENGTH TO SUPPORT
DODO 000o AREA HEIGHT = 4.0' FLOW AT
SECTION A -A CONSTRUCTION EQUIPMENT
0 0 00 O O O 75% OF DAM HEIGHT
00 000o00 000
r'000000000 0 c
00000o 00000o W2 = Do + SPIKES EVERY 2 FT
La DRAIN
00000°0 000o° WITH CAP LENGTH AS NEEDED
°°0o000 0 EXISTING STREAM MIN. COFFER
MIN
00 00 GRADE WIDTH = 9.0' INTERNAL GRIP/DRAG CHAIN
Plan ° STABILIZATION
FRONT ELEVATION WIDTH AS NEEDED STAGGERED ENDS
FILL PORT TO GRIP BANK
WITH CAP,
Tailwater � 0.5 Do TYP.
O o 0 O o 0 COFFER DAM GENERAL NOTES FILL PIPE SUGGESTED HARDWOOD
0 000° O °00° C_
THREADED ROD ON OUTER SUPPORT
00 00000 T 1 AWATER-INFLATED TEMPORARY DAM, OR APPROVED EQUAL, SHALL BE USED FOR THE COFFER EVERY 3 FT
Filter Fabric 2. DYNAMIC WATER HEIGHT CONDITIONS SHALL NOT EXCEED 75% OF THE PROPERLY FILLED HEIGHT OF 1. PREDRILL AND INSET 3/4" THREADED STEEL RODS
THE BARRIER, OR MANUFACTURER SPECIFICATIONS.
EVERY 3' AND SECURE WITH AT LEAST ONE NUT.
Section A —A 3. THE CONTRACTOR SHALL PROVIDE SHOP DRAWINGS OR MANUFACTURER'S TECHNICAL 2. NAIL INDIVIDUAL TIMBERS TOGETHER EVERY 2' WITH
Pipe Outlet To Flat Area SPECIFICATIONS FOR THE COFFER DAM PRIOR TO CONSTRUCTION. 8' TO 12' BARN SPIKES.
With No Defined Channel 4. THERE SHOULD BE A MINIMUM 7.0' OFFSET WIDTH BETWEEN THE EDGE OF THE COFFER DAM AND LIFTING LOOP (OPTIONAL)
THE STREAM BANK TO DIVERT THE STREAM BASE FLOW. THE CONTRACTOR SHALL INCREASE THIS STREAM CHANNEL BRIDGE MAT
WIDTH AS NECESSARY TO INSURE THE SAFE PASSAGE OF STREAM WATERS AROUND THE WORK
AREA. PLAN VIEW
DETAIL B
La
I i
o ��III��I � �0 III�II� Il�dll,4i I II Ii°III III l,ol
SURFACE FLOW
FILL PORT WITH CAP FILL PIPE
DIVERSION
O0 0000 ZZzz
Ioh
l
Wl = 3D o 0 0 00000 0000 LIFTING LOOP 1
O 00 00 00
O O 0 LIFTING LOOP OPTIONAL
A o 0o0o o00 0000 00 0000 00 0000 0 (OPTIONAL) (OPTIONAL) Iliil
o00o00 o00o0o Oo0000 000000 000 A
oO° 0 °0O° 00000 00000),0 000—
OO 00000 0o000 0o0OO 000
00 0000o00 O°00o00 0000o00 00000
000 0 000 0 000 0 000 0 OOo
O 0 0 0 0 0 O 0000 0 0 0
0 0=0 �O 0=0 0°O 0 0=O W2 = Do + 0.4La THERMAL SEAL O Ili
000000 000000 000000 000000 000 " THERMAL SEAL III
00000 00000, 000°00 000°00 000 w
OO o000 0000 0000 OOOO
° 00 00000 O00o0 O=0°0 DRAIN WITH CAP DRAIN WITH CAP 1
0 ° 000 00 0 000 00 0 O00 DRAIN WITH CAP
000 00 0 00 0
0 0 00 SIDE ELEVATION BRIDGE MAT
RECOMMENDED RECOMMENDED
SLOPE 1%2.1 OR FLATTER 1 /4 SUPPORT q 1 /4 SUPPORT
Tailwater > 0.5 Do
°000 000 EXAMPLE OF WATER FILLED COFFER DAM("2 2'-3' TYP•
H 00
000= 0 000° o A
NOT TO SCALE
00000 T — STREAMBANK
o BASE FLOW SURFACE FLOW
Filter Fabric SURFACE FLOW DIVERSION
DIVERSION
Section A —A WIDTH
H = Rip Rap to Top of Pipe (Max. H = D + T) �� A
T=1.5-Dmax , Unless Otherwise Shown On Plans SF SF TYPICAL TIMBER MAT 4
Pipe Outlet to Well —Defined Channel >— J
NOT TO SCALE
CONSTRUCTION SPECIFICATIONS SILT FENCE LOCATED
AROUND PERIMETER OF
I. Ensure that the subgrade for the filter and riprap follows the required lines and grades shown TEMPORARY STOCKPILE NOTE
In the plan. Compact any fill required in the subgrade to the density of the surrounding undisturbed SEE DETAIL 5 e FOR SILT FENCE DETAILS.
material. Low areas in the subgrade on undisturbed soil may also be filled by increasing the
riprap thickness. TEMPORARY SOIL STOCKPILE
2. The riprap and gravel filter must conform to the specified grading limits shown on the plans. LENGTH T R
L
J. Filter cloth, when used, must meet design requirements and be properly protected from SLOPE 1 SLOPE 2
punching or tearing during installation. Repair any damage by removing the riprap and sF sF HEIGHT
placing another piece of filter cloth over the damaged area. All connecting Joints should I sF
overlap a minimum of l foot. if damage is extensive, replace the entire filter cloth. u - - - - - - - - - L
4. Riprap may be placed by equipment, but take care to avoid damaging the filter.
5. The minimum thickness of the riprap should be l.5 times the maximum stone diameter. SECTION A -A
■1
11
0110006
_
MEN
tt`i.••
. •.
♦•►O�
1 USE SAFETY FIL
FABRIC OR ADD
WARNING SIGN
6. Riprap may be field stone or rough quarry stone. It should be hard, angular,
highly -resistant
SF SF
FABRIC -SEE SPECIAL SIDE VIEW
weather and well graded.
�_ A
PROVISIONS
7. Construct the apron on zero grade with no overfall at the end. Make the top of the
riprap at the downstream end level with the receiving area or slightly below it.
PLAN VIEW
FRONT VIEW
8. Ensure that the apron is properly aligned with the receiving stream and preferably
strninht thrniinhniit lta lannth if n niirve la naerlarl to fit sites nnnr/ltlnns nlnna it in
NOTES
the upper section of the apron.
STOCKPILE DIMENSIONS
WARNING SIGNS TO BE MADE OF DURABLE, WEATHERPROOF MATERIAL.
LENGTH
I WIDTH
I HEIGHT
I SLOPE 1
1 SLOPE 2
9. Immediately after construction, stabilize all disturbed areas with vegetation.
LETTERS TO BE 3" HIGH MINIMUM, CLEARLY LEGIBLE AND SPACED AS DETAILED.
Cl/�AIC CU AI I ME' MIAf�Cn AT an' .AAV! k AI I., IAITCO%,AI C'
STOCKPILE 11
80'
1 80'
10' MAX.
3:1 MAX.
3:1 MAX.
JI VI\J JI 1/lLL UL 1 L(l lrLV - - IVI­IIVIVIVI 111 ILIN VP .
MAINTENANCE PLACE A SIGN AT EACH END OF LINEAR TREE PROTECTION AND 50' ON CENTER THEREAFTER.
FOR TREE PROTECTION AREAS LESS THAN 200' IN PERIMETER, PROVIDE NO LESS THAN ONE SIGN
Inspect riprap outlet structures after heavy rains to see if any erosion around or PER PROTECTION AREA. ATTACH SIGNS SECURELY TO FENCE POSTS AND FABRIC.
below the riprap has taken place or if stones have been dislodged. Immediately MAINTAIN TREE PROTECTION FENCE THROUGHOUT DURATION OF PROJECT.
make all needed repairs to prevent further damage. TEMPORARY STOCKPILE
NOT TO SCALE COMBINATION SILT FENCE/
�
OUTLET STABILIZATION STRUCTURE 5
NOT TO SCALE 3 3
TREE PROTECTION FENCE
NOT TO SCALE
KHA PROJECT 13/2021
011494113 EWP STREAMBANK ,,•�`�����CA RO'''•,, SHEET NUMBER
In Horp
> DATE �'t •......R
01 /13/2021 STABILIZATION ate: •°��SS,°••• �9
y:
SCALE AS SHOWN �o nedbL EROSION CONTROL DETAILS © 2020 KIMLEY-HORN AND ASSOCIATES, INC. - DTL-3
PREPARED FOR - � ;
421 FAYETTEVILLE STREET, STE. 600, RALEIGH INCOB,984F
C 27601 DESIGNED BY JLM : e� •. ,ji ���
PHONE: [phone] FAX: [phone] : $�' •• C 1 NE •••
DRAWN BY DLH CITY OF D U RHAM ���''.�FFR.......
•L :'•`�''
WWW.KIMLEY-HORN.COM '�,,,��������.
rNo. REVISIONS DATE BY NC LICENSE #F-0102 CHECKED BY -- CITY OF DURHAM NC

DocuSign Envelope ID: 62AD21 137-8585-45EF-13413F-4830238571A4
GEOTEXTILE DEWATE
DIRT BAG WITH STABII
e OU
4
BY-PASS PUMP OUTLI
WITH ENER(
DISSIPATOR, T)
E
IMPERVIOUS DIKE, TYP.
e4
DEWATERIN
FOR SEDIMENT LADE
WITHIN WOF
EDGE OF FLOODPLAI
TY
DRY WOF
TEMPORAF
PUMP
SEQUENCE OF CONSTRUCTION FOR TYPICAL STREAM WORK AREA
1. CONTRACTOR SHALL DETERMINE A PROPOSED SIZE AND LOCATION OF GEOTEXTILE DEWATERING DIRT
nwn rnn wnnnn,iw, nv r„r rw,nu,rrn nn,nn rn u.,—w, l_ATION.
D.
:ESSARY TEMPORARY FLEXIBLE HOSE.
BAG.
IS TO ISOLATE THE WORK AREA. BEGIN
' AROUND OPERATION. BEGIN
EWATERED SHALL BE EQUAL TO ONE
1E PLANS.
E REMOVAL OF IMPERVIOUS DIKES AND/OR
PUMPS, AND TEMPORARY FLEXIBLE
ST).
f THE END OF EACH WORK DAY. THE
ONLY SHOW THE UPPER AND LOWER
NTRACTOR IS RESPONSIBLE FOR
FOR EACH DAY'S WORK.
SEDIMENT AND DIRT BAG. STABILIZE
. NOTES
ION SHALL BE PERFORMED IN ONLY DRY OR
P—AROUND WORK ASSOCIATED WITH THIS
0 ISOLATE WORK FROM STREAM FLOW WHEN
NCIDENTAL TO THE WORK. THIS INCLUDES
'TING, PRIOR TO PREDICTED RAIN FALL
AROUND FOR PREDICTED EVENT.
:WATER THE WORK AREA.
NOTES.
S
9q�Fq,y
qOw
EXAMPLE OF PUMP -AROUND OPERATION
FLOW
> PONDED
WATER
PLATE UPSTREAM SIDE
OF IMPERVIOUS DIKE WITH
SANDBAGS, RIP RAP OR
OTHER NON —ERODIBLE
MATERIAL, 1 FOOT THICK
HEIGHT WSE�
1 /2 BKF DEPTH MIN.
OR WSE + 1.0'
TRENCH IN FABRIC
MIN. 1 FOOT
FILTER FABRIC PER
SPECIFICATIONS
PLAN VIEW
CLASS I RIP RAP, NEW
JERSEY BARRIER OR
OTHER APPROVED
NON —ERODIBLE MATERIAL
SECTION A —A
NOT TO SCALE
DRY WORK
AREA
PLATE WITH IMPERVIOUS
POLYETHYLENE
MEMBRANE, 20 MIL
THICK
DRY WORK
AREA
IMPERVIOUS DIKF�aI
NOT TO SCALE
EXISTING STREAM BED
BE
1E DAY.
kL WORK
EXISTING STREAM
TOE OF BANK, TYP.
TOP OF EXISTING
STREAM BANK, TYF
MINIMUM RE,
FLOW WIDTH
OF BANK SL
EXAMPLE OF STREAM DIVERSION OPERATION(z.o, ,4
4 x D
0 0
A o 0 o A
PUMP
X ]WELL GRADED
a HOSE MIX 8"-12"
RIP RAP
1�
2
ENERGY DISSIPATOR PUMP OUTLET,
NOT TO SCALE
GEOTEXTILE DEWATER DIRT BAG GENERAL NOTES
1. GEOTEXTILE DEWATERING DIRT BAG DIMENSIONS ARE VARIABLE AND DEPENDENT ON SPECIFIC SITE
CONSTRAINTS AND PROPOSED CONSTRUCTION OPERATIONS.
2. THE CONTRACTOR SHALL BE RESPONSIBLE FOR SUBMITTING THE SIZE AND LOCATION OF THE
GEOTEXTILE DEWATERING DIRT BAG FOR APPROVAL BY THE ENGINEER PRIOR TO CONSTRUCTION.
3. THE CONTRACTOR SHALL INSURE THAT THE DIRT BAG IS OF A SUFFICIENT SIZE AND STRENGTH TO
PROPERLY DEWATER THE PUMP HOSE INFLUENT.
4. DIRT BAG SHALL BE REPLACED WHEN FULL OF SEDIMENT OR WHEN FLOW THROUGH BAG IS LIMITED
BY SEDIMENT ACCUMULATION.
5. IF GEOTEXTILE DEWATERING DIRT BAG IS PLACED IN EXISTING VEGETATED AREA ADJACENT TO AN
UNDISTURBED STREAM NO OUTLET IS REQUIRED (PREFERRED). IF GEOTEXTILE DEWATERING DIRT
BAG IS PLACED ON DISTURBED SOIL THEN A STABILIZED OUTLET/CHANNEL NEEDS TO BE PROVIDED.
6. THE STABILIZED OUTLET WILL BE A MINIMUM OF 1' THICK AND CONSIST OF A WELL GRADED MIX OF
1"-6" RIP RAP PER THE DIMENSIONS BELOW. PLACE FILTER FABRIC BETWEEN THE RIP RAP AND
SOIL FOUNDATION. THE STABILIZED OUTLET WILL EXTEND FROM THE SPECIAL STILLING BASIN TO
THE BANK OF THE CHANNEL BELOW THE WORK AREA.
0.5'
SEWN IN SPOUT
PUMP
DISCHARGE
HOSE
HIGH STRENGTH —J
STRAPPING FOR
SECURING SPOUT TO
PUMP HOSE
0.5' LAYER OF NCDOT
NO. 57 STONE
0.5' LAYER OF 2"-3"
RIP RAP
3:1
NON —WOVEN FILTER FABRIC
GEOTEXTILE DEWATERING
FILTER BAG
LENGTH RANGE
6.0'-15.0'
PLAN VIEW
O
O
LL
0
3:1
3.0 FEET T
STABILIZED OUTLET
HIGH STRENGTH DOUBLE
STITCHED "J" TYPE
SEAMS
Y
III III
PUMP
DISCHARGE
HOSE EXISTING GROUND
SEE NOTES 5-6
LENGTH RANGE
111, 6.0'-15.0'
EXI
WIDTH
RANGE
4.0'-15.0'
f\►
w
FLOWcr
cn
ND
GEOTEXTILE
DEWATERING STABILIZE OUTLET
DIRT BAG AS NEEDED
\ FCou
DIRT BAG TO BE PLACED
ON 0.5' OF NCDOT NO. STREAM BANK.
57 STONE PROVIDE STABILIZED
OUTLET TO STREAM
SIDE VIEW CHANNEL
GEOTEXTILE DEWATERING DIRT BAG K`�
NOTES:
1. TURNING RADIUS SUFFICIENT TO ACCOMMODATE
LARGE TRUCKS SHALL BE PROVIDED.
2. ENTRANCE S) SHOULD BE LOCATED TO
PROVIDE OR UTILIZATION BY ALL
CONSTRUCTION VEHICLES.
3. MUST BE MAINTAINED IN A CONDITION WHICH
WILL PREVENT TRACKING OR DIRECT FLOW OF
MUD ONTO STREETS. PERIODIC TOP DRESSING
WITH STONE WILL BE NECESSARY.
4. ANY MATERIAL TRACKED ONTO THE ROADWAY
MUST BE CLEANED UP IMMEDIATELY.
5. GRAVEL CONSTRUCTION ENTRANCE SHALL BE
LOCATED AT ALL POINTS OF INGRESS AND
EGRESS UNTIL SITE IS STABILIZED.
FREQUENT CHECKS OF THE DEVICE AND
TIMELY MAINTENANCE MUST BE PROVIDED.
6. NUMBER AND LOCATION OF CONSTRUCTION
ENTRANCES PER THE PLANS OR DETERMINED
BY THE ENGINEER.
7. WHERE A PIPE IS SHOWN ON PLANS, SEE
SPECIAL PROVISIONS.
TEMPORARY CONSTRUCTION ENTRANCE
NOT TO SCALE
KHA PROJECT 13/2021
011494113 EWP STREAMBANK ������CJIJ?�' SHEET NUMBER
DATE ; a0: •�FESS/p••. y9
01 /13/2021 STABILIZATIONK >>> Horn _ y
ey
°°°� d b O 2020 KIMLEY-HORN AND ASSOCIATES, INC. SCALE AS SHOWN ; ` • �.: ER OSION CONT ROL DETAIL
S
421 FAYETTEVILLE STREET, STE. 600, RALEIGH NC 27601 DESIGNED BY JLM PREPARED FOR ;� ••��B7984F • �; DTL-4
PHONE: [phone] FAX: [phone] $�' 1
WWW.KIMLEY-HORN.COM NE••• ��
DRAWN BY DLH CITY OF D U R H AM ��''. �FFR L
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No. REVISIONS DATE BY NC LICENSE #F-0102 CHECKED BY -- CITY OF DURHAM NC ""ill

DocuSign Envelope ID: 62AD21 137-8585-45EF-13413F-4830238571A4
MUD MATS
AX
• 8'-0" MAXIMUM
• n\\\ VARIABLE AS DIRECTED BY THE ENGINEER
SUPPORT LOG, SILT FENCE FABRIC
12" MIN. MINIMUM 10 GAUGE INSTALLED TO SECOND
FILTER FABRIC CLASS B STONE LINE WIRES WIRE FROM TOP kd
MINIMUM 12y2 GAUGE
STREAMBANK
INTERMEDIATE WIRES
BOULDERS OR APPROVED
NOTES: EQUIVALENT GRADE
1. CONSTRUCT STREAM CROSSING WHEN FLOW IS AT NORMAL
BASEFLOW.
2. MINIMIZE CLEARING AND EXCAVATION OF STREAMBANKS. DO ) ke"
NOT EXCAVATE CHANNEL BOTTOM. FRONT VIEW
3. INSTALL STREAM CROSSING PERPENDICULAR TO THE FLOW.
4. MAINTAIN CROSSING SO THAT RUNOFF IN THE CONSTRUCTION
ROAD DOES NOT ENTER EXISTING CHANNEL.
5. STABILIZE AN ACCESS RAMP OF CLASS B STONE TO THE STEEL POST
EDGE OF THE MUD MAT. WOVEN WIRE FABRIC
6. CONTRACTOR SHALL DETERMINE AN APPROPRIATE RAMP
ANGLE ACCORDING TO THE EQUIPMENT UTILIZED. SILT FENCE FABRIC
MAINTENANCE: o
3 FILL SLOPE
1. INSPECT TEMPORARY STREAM CROSSINGS AFTER to
RUNOFF —PRODUCING RAINS TO CHECK FOR BLOCKAGE IN a * FOR REPAIR OF SILT FENCE FAILURES
CHANNEL, EROSION OF ABUTMENTS, CHANNEL SCOUR, RIPRAP N USE SILT FENCE OUTLET DETAIL
DISPLACEMENT, OR PIPING. MAKE ALL REPAIRS IMMEDIATELY "' GRADE
TO PREVENT FURTHER DAMAGE TO THE INSTALLATION.
� -8" MINIMUM COVER
OVER SKIRT, NOTE:
ANCHORED 4" * USE SILT FENCE ONLY WHEN DRAINAGE AREA
TEMPORARY DEEP STREAM CROSSING W MUD MAT N DOES NOT EXCEED 1/4 ACRE AND NEVER IN
/ AREAS OF CONCENTRATED FLOW.
NOT TO SCALE
SIDE VIEW
uincurn crnKir
STREAM BANK
AND SEDIMENT CONTROL PLAN SHEETS
TEMPORARY STREAM CROSSING
NOT TO SCALE
TEMPORARY SILT FENCE
NOT TO SCALE
s
B
\P
40"
WITH PIPE 5
MIN. 10 GA.
LINE WIRES
GRADE Trr_rr_
1-1I 1-1
_T
4"
3 TREE PROTECTION AREA
4" 18"
3 DO NOT ENTER
4"
WARNING SIGN DETAILS
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Ell
"WA'RONING"SlITN7
II � I
111
IIII IIII IIIIII
IIII IIII � II IIII
/_ PLANT CANOPY, DRIPLINE
8' MAX. VARIABLE AS
DIRECTED BY THE ENGINEER
MN. 12-1 /2 GA.
WIRES
ORANGE, UV RESISTANT,
HIGH - TENSILE STRENGTH,
POLY BARRICADE FABRIC (TYPICAL)
I�T
NOTES:
1. ALL PLANTS TO BE SAVED
SHALL BE PROTECTED BY
FENCING AS SHOWN IN THIS
DETAIL.
2. CONTRACTOR SHALL INSTALL
FENCING PRIOR TO BEGINNING
ANY CONSTRUCTION OR
GRADING ACTIVITY.
3. CONTRACTOR SHALL CALL FOR
INSPECTION AND APPROVAL OF
PROTECTIVE FENCING PRIOR TO
BEGINNING ANY CONSTRUCTION
OR GRADING.
4. PROTECTIVE FENCING SHALL BE
LOCATED AT OR OUTSIDE
DRIPLINE OF TREES AND 1'
MINIMUM OUTSIDE SHRUBS OR
OTHER PLANTS.
6' STEEL T POST
(FACTORY PAINTED)
-ORANGE, UV RESISTANT, HIGH -
TENSILE STRENGTH, POLY
BARRICADE FABRIC (TYPICAL)
,r--EXISTING PLANT
/ LIMIT OF CANOPY, DRIPUNE
PLAN VIEW
PLAN VIEW OF PROTECTIVE FENCING
AROUND SINGLE TREE- EXPAND AS NECESSARY
TEMPORARY TREE PROTECTION FENCE (4
NOTTO SCALE
KHA PROJECT r1 13/2021
011494113 EWP STREAMBANK %%������'' SHEET NUMBER
DATE ; a0: •*FESS/p••. y9
STABILIZATIONKI I ey))) H o r P _ ybr
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01 /13/2021 •Q
© 2020 KIMLEY—HORN AND ASSOCIATES INC. SCALE AS SHOWN = �o�nedo _ EROSION CONTROL DETAILS
421 FAYETTEVILLE STREET, STE. 600, RALEIGH INC 27601 DESIGNED BY JLM PREPARED FOR �� •• ADB79 aj d0 DTL-5
PHONE: [phone] FAX: [phone] �''$�' •• C ...
DRAWN BY DLH CITY OF DURHAM-"'�'&R
WWW.KIMLEY-HORN.COM '�,,,���-����.
No. REVISIONS DATE BY NC LICENSE #F-0102 CHECKED BY -- CITY OF DURHAM NC

DocuSign Envelope ID: 62AD21 137-8585-45EF-13413F-4830238571A4
O
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CARRIER FLOAT STEEL CABLE
= MAXIMUM WATER SURFACE (MIN. 29 LBS/FT BUOYANCY)
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Y
O
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Q
O
0
Q
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FLU
0
Q
ANCHOR CABLE OR CHAI CURTAI
FABRIC
0 INSTALL SILT
= CURTAIN IN "U"
SHAPED
Y Z: DEPLOYMENT
CURTAIN WEIGHT
0 ANCHOR (MIN. (18 OZ/SQ YD)
40 LB ANCHOR A A
PER 100' OF
0 CURTAIN) RIVERINE FLOW
HANNEL BOTTOM ;i WORK
N AREA
0
O
0
N
0
PLAN
DEPTH = 1.1 x BANKFULL DEPTH
O
SECTION A -A
WIDTH = 1.2 x CHANNEL WIDTH
NOTES:
DOUBLE SILT CURTAINS SHOULD BE SPACED 10' APART.
0
FLOATING SILT (TURBIDITY) CURTAIN
Q
NOT TO SCALE
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0
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0
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KHA PROJECT 1 13/2021
011494113 EWP STREAMBANK �����������' SHEET NUMBER
KI ey>>>Horn
,,���.�,��••. ARp�
DATE •�FESS/p••. ?9
01 /13/2021 STABILIZATION _ y
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© 2020 KIMLEY—HORN AND ASSOCIATES, INC. �o�i�nedb EROSION CONTROL DETAILS
SCALE AS SHOWN DTL-6
421 FAYETTEVILLE STREET, STE. 600, RALEIGH NC 27601 DESIGNED BY JLM PREPARED FOR �$ �.� �
PHONE: [phone] FAX: [phone] CITY OF D U RHAM '��''y�FF •••••••• �,`
DRAWN BY DLH
WWW.KIMLEY-HORN.COM ''�,,,� R ����`��
No. REVISIONS DATE BY NC LICENSE #F-0102 CHECKED BY -- CITY OF DURHAM NC

DocuSign Envelope ID: 62AD21 137-8585-45EF-13413F-4830238571A4
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--- ----- -- ----_ __ --
-
EROSION CONTROL GENERAL NOTES:
,
= == -
1. EWP 005 DISTURBED AREA = 1.16 ACRES.
t J ^
T
EWP 00DISTURBED AREA = 1.27 ACRES
=
EWP 007 DISTURBED AREA 0.60 ACRES
STAGING, STOCKPILES AND HAUL ROAD AREAS:
SITE EROSION CONTROL MEASURES:
0
EWP 008 DISTURBED AREA = 0.81 ACRES
TOTAL DISTURBED AREA FOR ALL SITES = 3.84 ACRES
1.
SPECIFIED AREAS SHOWN ON THE EROSION AND SEDIMENT CONTROL PLANS HAVE BEEN
1.
TREE PROTECTION FENCE MUST BE INSTALLED AROUND ALL TREES TO BE SAVED AT A MINIMUM RADIUS OF 1.25' PER INCH DBH.
-0
ESTABLISHED AS HAUL ROADS AND STAGING AREAS, AND TEMPORARY STOCKPILE
2. SOIL TYPES EWP 005 & 006: CHEWACLA AND WEHADKEE SOILS (Ch).
LOCATIONS. WITH PRIOR WRITTEN APPROVAL, AND REVISED PLAN IF REQUIRED, THE
2,
SILT FENCE AND OTHER MEASURES INTENDED TO TRAP SEDIMENT SHALL BE CONSTRUCTED AS A FIRST STEP IN ANY LAND -DISTURBING
c
SOIL TYPES EWP 007: CARTECAY AND CHEWACLA SOILS (Cc) AND WHITE STORE SAND LOAM (WsC).
CONTRACTOR MAY MODIFY THE PROPOSED LOCATION OF STOCKPILE AREAS ALONG THE
ACTIVITY AND SHALL BE MADE FUNCTIONAL BEFORE UPSLOPE LAND DISTURBANCE TAKES PLACE.
PROJECT, AS NECESSARY, TO CARRY OUT THE WORK. ALL TEMPORARY STOCKPILE
SOIL TYPES EWP 008: CHEWACLA AND WEHADKEE SOILS (Ch) AND MAYODAN SANDY LOAM (MfE).
AREAS MUST BE INSIDE THE LIMITS OF CONSTRUCTION AND APPROVED BY THE
3.
AS CONSTRUCTION PROGRESSES, SILT FENCE SHALL BE RELOCATED AS NEEDED TO ENSURE THAT THE ENTIRE UPSLOPE DISTURBED AREA IS
DESIGNER. STOCKPILE AREAS SHOULD NOT BE LOCATED WITHIN FORESTED AREAS. SILT
COLLECTED FOR TREATMENT.
FENCE SHALL BE REQUIRED IN AREAS WHERE LOOSE SOIL HAS BEEN PLACED IN THE
0
3. REFER TO SHEET G-1, GENERAL NOTES, FOR THE PROJECT CONSTRUCTION SEQUENCE.
STAGING AND STOCKPILING AREAS.
4.
STABILIZATION MEASURES SHALL BE APPLIED TO PROPOSED EROSION AND SEDIMENT CONTROL STRUCTURES IMMEDIATELY AFTER INSTALLATION.
4. EROSION AND SEDIMENT CONTROL PERMIT MUST BE OBTAINED BEFORE ANY LAND DISTURBING ACTIVITIES OCCUR. THE
2
ANY MATERIAL IS TRANSPORTED IT IS THE CONTRACTOR'S RESPONSIBILITY TO
5.
CONSTRUCTION ENTRANCES SHALL BE INSTALLED AT ALL ACCESS LOCATIONS PER THE PLANS AND SPECIFICATIONS.
P
CONTRACTOR SHALL BE FAMILIAR WITH THE EROSION AND SEDIMENT CONTROL REQUIREMENTS OF THE DRAWINGS, AS WELL
S TAKE
ENSURE THAT OFF -SITE MATERIAL IS TAKEN TO A PERMITTED FACILITY AND THIS ACTION
E
AS, THE REQUIREMENTS SPECIFIED IN THE PROJECT SPECIAL CONDITIONS. THE CONTRACTOR SHOULD HAVE A COPY OF THE
IS CONDUCTED IN A MANNER THAT IS CONSISTENT WITH THE APPROVED EROSION
6.
TEMPORARY SILT FENCE SHALL BE PROVIDED BETWEEN STREAMS AND ALL DISTURBED AREAS THAT DRAIN TOWARD THE STREAM, UNTIL
APPROVED PLANS, THE CERTIFICATE OF APPROVAL, LETTER OF APPROVAL, AND COMPLETED SELF -INSPECTION FORMS ON
CONTROL PERMIT, OR A REVISED PLAN MUST BE OBTAINED PRIOR TO TRANSPORTING
GROUND COVER IS REESTABLISHED.
SITE AND AVAILABLE AT ALL TIMES. SELF INSPECTIONS SHOULD BE PERFORMED AT LEAST ONCE EVERY 7 CALENDAR DAYS
MATERIAL.
AND WITHIN 24 HOURS OF EVERY RAIN EVENT GREATER THAN 0.5 INCH. ANY NEEDED REPAIRS SHALL BE MADE
7.
SILT FENCE STONE OUTLETS SHALL BE CONSTRUCTED IN LOW LYING AREAS AND AREAS OF CONCENTRATED FLOW ALONG THE LENGTH OF
IMMEDIATELY TO MAINTAIN MEASURES AS DESIGNED. SEE LINK:
3.
EXCAVATED MATERIAL MAY BE TEMPORARILY STOCKPILED IN THE TEMPORARY STAGING
TEMPORARY SILT FENCING AND AT LEAST EVERY 150'. IF LOCATIONS ARISE DURING THE COURSE OF CONSTRUCTION WHERE THE TEMPORARY
http: //deq.nc.gov/about/divisions/energy-mineral-land-resources/erosion-
AND STOCKPILE AREAS.
SILT FENCE BECOMES OVERWHELMED WITH OVERLAND FLOW AND FAILS, THE CONTRACTOR SHALL REPAIR THESE AREAS WITH SILT FENCE
sediment-control/forms
OUTLETS.
4.
ALL HAUL ROAD AND TEMPORARY STOCKPILE LOCATIONS ONSITE MAY BE ADJUSTED IN
5. ALL EROSION CONTROL MEASURES SHALL BE CONSTRUCTED AND MAINTAINED IN ACCORDANCE WITH THE CITY OF DURHAM
THE FIELD TO PROTECT EXISTING TREES LARGER THAN 6" DBH. THE FINAL STAKING OF
8.
DURING CONSTRUCTION THE CONTRACTOR SHALL BE RESPONSIBLE FOR INSTALLING ADDITIONAL EROSION CONTROL MEASURES NOT SHOWN ON
Q
STANDARD DETAILS AND NORTH CAROLINA EROSION AND SEDIMENT CONTROL REGULATIONS.
THE HAUL ROADS SHALL BE APPROVED BY THE DESIGNER BEFORE CLEARING
THE PLANS BUT NECESSARY TO CONTROL EXCESS SEDIMENT, AS DETERMINED BY THE ENGINEER OR EROSION CONTROL INSPECTOR.
COMMENCES.
6. ALL CONSTRUCTION WORK SHALL BE IN COMPLIANCE WITH REGULATIONS OF THE NATIONAL POLLUTANT DISCHARGE
ELIMINATION SYSTEM (NPDES) STORM WATER GENERAL PERMIT (NCGO10000). THE CONTRACTOR SHALL BE RESPONSIBLE IN -STREAM EROSION CONTROL MEASURES:
FOR CONDUCTING, RECORDING AND SUBMITTING THE REQUIRED SELF -INSPECTION REPORTS TO THE APPROPRIATE AGENCIES.
PERMIT DOCUMENTATION CAN BE FOUND IN THE PROJECT SPECIAL CONDITIONS. 1. THE PROJECT CONSTRUCTION AREA IS LOCATED WITHIN AN ACTIVE FLOODPLAIN AND
7. THE CONTRACTOR SHALL MAINTAIN A RAIN GAUGE ONSITE IN ACCORDANCE WITH THE NPDES GENERAL STORMWATER PERMIT SUBJECT TO REGULAR FLOODING. AS SUCH, THE CONTRACTOR SHALL LIMIT THE DAILY
AND SHALL KEEP A RECORD OF THE DAILY RAINFALL AMOUNT. WORK AREA TO A STREAM AND FLOODPLAIN SECTION THAT CAN BE COMPLETELY
0 CONSTRUCTED AND STABILIZED WITHIN A SINGLE DAY. A COMPLETED AND STABILIZED
8. FOLLOWING APPROVAL OF THE PROJECT EROSION CONTROL INSPECTOR, ALL TEMPORARY EROSION AND SEDIMENT CONTROL WORK AREA SHALL BE AT FINAL GRADE WITH MATTING, TEMPORARY SEEDING, AND/OR
MULCH IN PLACE.
MEASURES SHALL BE REMOVED WITHIN 21 DAYS AFTER FINAL SITE STABILIZATION OR AFTER THE TEMPORARY MEASURES
ARE NO LONGER NEEDED. TRAPPED SEDIMENT AND THE DISTURBED SOIL AREAS RESULTING FROM THE DISPOSITION OF 2• IN THE EVENT THAT THE WORK AREA CANNOT BE COMPLETED BY THE END OF THE
TEMPORARY MEASURES SHALL BE PERMANENTLY STABILIZED TO PREVENT FURTHER EROSION AND SEDIMENTATION. ALL WORK DAY, THE CONTRACTOR SHALL BE RESPONSIBLE FOR PROVIDING ADDITIONAL
LAND -DISTURBING ACTIVITIES ARE TO BE PLANNED AND CONDUCTED TO DISTURB ONLY WHAT CAN BE STABILIZED BY THE STABILIZATION AND EROSION AND SEDIMENT CONTROL MEASURES TO PROTECT THE
END OF THE DAY. COMPLETED WORK FROM DAMAGE. ALL ADDITIONAL MEASURES MUST BE APPROVED BY
9. SEE PLANTING NOTES AND DETAILS (SHEET P-8) FOR LOCATION OF COIR MATTING INSTALLATION. THE ENGINEER.
0
E 3. ALL WORK FOR THE STREAM SHALL BE PERFORMED FROM THE STREAM CHANNEL BANK,
0 10. PHOTOGRAPHS OF EXISTING CONDITIONS OF CURB AND GUTTER, FENCING, PAVEMENT, LIGHT POSTS, AND ANY OTHER UNLESS STREAM DIVERSION IS INSTALLED SO THAT STREAM CHANNEL WORK IS
FEATURES SHALL BE PROVIDED TO THE CITY BEFORE WORK BEGINS. ANY DAMAGE TO EXISTING STRUCTURES OR FEATURES COMPLETED "IN THE DRY."
SHALL BE REPAIRED AT THE COST OF THE CONTRACTOR. SEE SPECIFICATIONS.
I1
EROSION CONTROL MAINTENANCE:
1. EROSION AND SEDIMENT CONTROL MEASURES SHALL BE MAINTAINED CONTINUOUSLY, RELOCATED WHEN AND AS
NECESSARY, AND SHALL BE CHECKED AFTER EVERY RAINFALL. SEEDED AREAS SHALL BE CHECKED REGULARLY
AND SHALL BE WATERED, FERTILIZED, RESEEDED AND MULCHED AS NECESSARY TO OBTAIN A DENSE STAND OF
GRASS.
2. WHERE SEDIMENT IS TRANSPORTED ONTO A PAVED OR PUBLIC ROAD SURFACE, THE ROAD SURFACE SHALL BE
CLEANED IMMEDIATELY AND CLEANED THOROUGHLY AT THE END OF EACH DAY. SEDIMENT SHALL BE REMOVED
FROM THE ROADS BY SHOVELING OR SWEEPING AND TRANSPORTED TO A SEDIMENT CONTROL DISPOSAL AREA.
STREET WASHING SHALL BE ALLOWED ONLY AFTER SEDIMENT IS REMOVED IN THIS MANNER.
3. WHEN A CONSTRUCTION ENTRANCE HAS BEEN COVERED WITH SOIL OR HAS BEEN PUSHED INTO THE SOIL BY
CONSTRUCTION TRAFFIC, IT SHALL BE REPLACED WITH A DEPTH OF STONE EQUAL TO THAT OF THE ORIGINAL
APPLICATION, OR OTHERWISE REINSTALLED PER THE ORIGINAL APPLICATION.
4. COIR FIBER MATTING SHALL BE MONITORED AND REPAIRED AS NECESSARY UNTIL GROUND COVER IS ESTABLISHED.
COIR FIBER MATTING SHALL BE LAID IN SUCH A WAY THAT GOOD CONTACT WITH THE GROUND IS ESTABLISHED.
IF GOOD CONTACT IS NOT ESTABLISHED, OR EROSION OCCURS UNDER THE COIR FIBER MATTING, THEN THE BANK
SHALL BE REPAIRED AND THE MATTING RESECURED.
5. SHOULD THE SILT FENCE FABRIC COLLAPSE, TEAR, DECOMPOSE OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY.
REMOVE SEDIMENT DEPOSITS AS NECESSARY TO REDUCE PRESSURE ON THE FENCE; AVOID UNDERMINING SILT
FENCE DURING CLEANOUT.
SITE DESCRIPTION
STABILIZATION TIME
TIMEFRAME EXCEPTIONS
PERIMETER DIKES, SWALES, DITCHES AND SLOPES
7 DAYS
NONE
HIGH QUALITY WATER (HQW) ZONES
7 DAYS
NONE
SLOPES STEEPER THAN 3:1
7 DAYS
IF SLOPES ARE 10' OR LESS IN LENGTH AND ARE
NOT STEEPER THAN 2:1, 14 DAYS ARE ALLOWED.
SLOPES 3:1 OR FLATTER
14 DAYS
7 DAYS FOR SLOPES GREATER THAN 50'IN
LENGTH.
ALL OTHER AREAS WITH SLOPES FLATTER THAN 4:1
14 DAYS
NONE, EXCEPT FOR PERIMETERS AND HQW ZONES.
KHA PROJECT EWP STREAMBANK 13'2021
011494113 ,��``"���}r1., SHEET NUMBER
KI ley))) Horp
.�`�\ CAROB
01 /13/2021 ' aDATE °�Qo�`�SS��''�'y9'
STABILIZATION bned9oy:- EROSION CONTROL KEY SHEET
© 2020 KIMLEY-HORN AND ASSOCIATES, INC. SCALE AS SHOWN " (� ESC-1
421 FAYETTEVILLE STREET, STE. 600,REPARED FOR
RALEIGH INCNC 27601
DESIGNED BY JLM ' �B area �` EWP 005 006
PHONE: [phone] FAX: [phone] .
DRAWN BY DLH
CITY OF DURHAM�FFR..... '''
WWW.KIMLEY-HORN.COM ''�,,II������.
No. REVISIONS DATE BY NC LICENSE #F-0102 CHECKED BY -- CITY OF DURHAM NC

DocuSign Envelope ID: 62AD21 137-8585-45EF-13413F-4830238571A4
EROSION CONTROL LEGEND
NOTES:
LOD LIMITS of DISTURBANCE 1. CHANNEL WORK MUST BE COMPLETED "IN
SILT FENCE THE DRY". TO CONSTRUCT STRUCTURES IN
- TPF - TREE PROTECTION FENCE STREAM CHANNEL, FLOW TO BE DIVERTED
Y AROUND WORK AREA AND SILT CURTAIN
TPF— COMBO SILT FENCE/ INSTALLED DOWNSTREAM TO REDUCE
TREE PROTECTION FENCE
SEDIMENT ENTERING DOWNSTREAM
CD COFFER DAM
CHANNEL. STRUCTURE MAY BE BUILT IN
Sc SILT CURTAIN SECTIONS TO WORK "IN THE DRY" STREAM
DIVERSION AREA.
TEMPORARY CONSTRUCTION ENTRANCE
2. SEE PLANTING NOTES AND DETAILS (SHEET
TEMPORARY HAUL ROAD P-11) FOR LOCATION OF COIR MATTING
INSTALLATION.
TEMPORARY STAGING AREA
Q
PUMP AROUND OPERATION
0
.E GDB GEOTEXTILE DIRT BAG
® TIMBER MAT
M
Q
ID IMPERVIOUS DIKE
0
GRAPHIC SCALE IN FEET
N TEMPORARY STREAM CROSSING w/ PIPE 0 15 30 60
RJN
TEMPORARY DEEP STREAM CROSSING NO `
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011494113
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© 2020 KIMLEY-HORN AND ASSOCIATES, INC. SCALE AS SHOWN = `•;����„�M
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No. REVISIONS DATE BY NC LICENSE #F-0102 CHECKED BY -- CITY OF DURHAM NC

DocuSign Envelope ID: 62AD21 137-8585-45EF-13413F-4830238571A4
EROSION CONTROL LEGENDGRAPHIC SCALE IN FEET
0 15 30 60
LOD LIMITS of DISTURBANCE NOTES:
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KHA PROJECT 1/13/2021
011494113
EWP STREAMBANK --' SHEET NUMBER
I In HorpD ATE
01/13/2021 STABILIZATION ;ate •
:•°�tSSnedbr:9 EROSION CONTROL
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SCALE AS SHOWN U�edb�
© 2020 KIMLEY-HORN AND ASSOCIATES, INC. �•: (:'�4"I ESC-3
421 FAYETTEVILLE STREET, STE. 600, PREPARED FOR.
RALEIGH NC 27601 DESIGNED BY JLM ��',y����i ��� EWP — 006
PHONE: [phone] FAX: [phone] DRAWN BY DLH CITY OF D U RHAM ��''y�FFR��L ,•��`
WWW.KIMLEY-HORN.COM ''�,,,��������.
No. REVISIONS DATE BY NC LICENSE #F-0102 CHECKED BY -- CITY OF DURHAM NC

ID#* 20201888
Version* 1
Regional Office * Central Office - [phone]
Reviewer List* Rick Trone
Pre -Filing Meeting Request submitted 12/4/2020
Contact Name*
Contact Email Address*
Project Name*
Project Owner*
Project County*
Owner Address:
Mackenzie Richards (Kimley-Horn)
[e-mail]
Emergency Watershed Protection (EWP) Streambank Repair: Site 1 and
Site 2
The City of Durham - Department of Public Works
Durham
Street Address
101 City Hall Plaza
Address Line 2
aty
Durham
Postal / Zip axle
27705
Is this a transportation project?* C Yes c: No
State / Province / Pegion
NC
Country
USA
Type(s) of approval sought from the DWR:
W 401 Water Quality Certification - r 401 Water Quality Certification -
Regular Express
F Individual Permit F Modification
F Shoreline Stabilization
Does this project have an existing project ID#?*
C Yes c: No
Do you know the name of the staff member you would like to request a meeting with?
Stephanie Goss
Please give a brief project description below.*

The proposed project, Emergency Watershed Protection (EWP)
Streambank Repair: Site 1 & Site 2, is located within the Ellerbe Creek
riparian corridor, northeast of Interstate-85 in Durham County, North
Carolina. The area surrounding the project is largely composed of
residential housing and scattered commercial development. The proposed
project is part of a larger undertaking that is proposing to repair and
stabilize streams at four sites and to repair and maintain several existing
aerial waterline and sewer crossings that experienced damage during
Hurricane Florence. Site 1 and Site 2 of this larger undertaking consists of
the repair and stabilization of a length of Ellerbe Creek and an unnamed
tributary to Ellerbe Creek as well as the repair and maintenance of three
existing aerial utility crossings. After discussions with the USACE, it is
assumed that the project will qualify for authorization under both a
Nationwide Permit 3 (Maintenance) and a Nationwide Permit 27 (Aquatic
Habitat Restoration, Enhancement, and Establishment Activities).
The proposed stream repair will include the grading of damaged and
unstable stream banks to match natural channel contours, the placement
of rip rap and boulder toe protection along the stream banks to provide
stabilization, and the installation of rip rap embankment protection at
drainage swales to prevent future erosion and sedimentation. The project
is also proposing the construction of log J-hook riffles within the stream to
establish grade control, facilitate sediment transport, and enhance aquatic
species habitat. As part of the stream repair, stream banks that have been
graded and disturbed will be replanted with live stakes, bare roots, and
herbaceous plugs to promote vegetation establishment and restore the
overall function of the riparian buffers.
In addition, Site 1 and Site 2 of the project proposes to perform
maintenance repairs on three existing aerial utility crossings that were
damaged during Hurricane Florence. As part of this repair and
maintenance, an existing aerial waterline crossing will be converted to an
underground trenchless crossing that will be directionally drilled below the
stream substrate. To repair damage at two existing aerial sewer crossings,
gaps between supports and carrier pipes will be grouted in place and pipes
will be properly strapped to supports.
Please give a couple of dates you are available for a meeting.
12/10/2020
Please attach the documentation you would like to have the meeting about.
EWP Streambank Repair_ Site 1 and Site
3.98MB
2—buffer approval.pdf
SAW-2020-
1.52MB
01176_Sitesl and2_PJD_Revised.pdf
Fig 1_EWPStreams Vicinity.pdf 671.89KB
pdf only
By digitally signing below, I certify that I have read and understood that per the Federal Clean Water Act Section
401 Certification Rule the following statements:
This form completes the requirement of the Pre -Filing Meeting Request in the Clean Water Act Section 401 Certification
Rule.
1 understand by signing this form that I cannot submit my application until 30 calendar days after this pre -filing
meeting request.
I also understand that DWR is not required to respond or grant the meeting request.

Your project's thirty -day clock started upon receipt of this application. You will receive notification regarding meeting location
and time if a meeting is necessary. You will receive notification when the thirty -day clock has expired, and you can submit an
application.
Signature
Submittal Date 12/4/2020