20140030 Ver 1_401 Application_20140114

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Dewberry
January 6, 2014
Ms. Karen Higgins
Wetlands, Buffer, and Stormwater —
Compliance & Permitting Unit
NC Division of Water Quality
1650 Mail Service Center
Raleigh, North Carolina 27699 -1650
201 40030
Dewberry Engineers Inc.
2301 Rexwoods Drive, Suite 200
Raleigh, NC 276073366
919.881.9939
919.881.9923 fax
wwwAewberry com
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Reference: City of Raleigh
Richland Creek Stream Relocation and Sanitary Sewer Replacement
Water Quality Certification # 3819 Application
Dewberry Project No. 50047595
Dear Ms. Higgins:
Enclosed are five copies of a Pre - Construction Notification (PCN) Permit Application Package for the City
of Raleigh Richland Creek Stream Relocation and Sanitary Sewer Replacement. For your review we have
enclosed five copies of the PCN Application Form, Attachment A — Additional Information, USGS
Quadrangle Map, site photos, site plan with typical construction details, and the $240.00 application fee.
The project titled "Richland Creek Stream Relocation and Sanitary Sewer Replacement" consists of
replacing approximately loo LF of 15" terra cotta sanitary sewer with ductile iron pipe. The terra cotta
sewer line has become exposed due to erosion produced by Richland Creek water flow, and now runs
parallel to the stream channel, within the stream bed. To protect the sewer line from possible future
erosion and achieve a perpendicular stream crossing, the project also consists of abandoning a 14o LF
segment of Richland Creek and creating a new stream channel within the area.
The construction described in this permit application will result in a net stream loss of 35LF, and a net
loss of 1,620 square feet of Zone 1 and 558 square feet of Zone 2 buffer.
This application has also been sent to the US Army Corps of Engineers (USACE) for record only, as a
written permit is not needed. The work is covered under a Nationwide 12 permit, as discussed with James
Lastinger of USACE during a site visit conducted on December 17, 2013.
Please contact me with any questions regarding this permit application.
Sincerely,
Dewberry Engineers c.
eog�(�
Matthew Watt, PE
Project Engineer
Enclosures
CC: Sammy Locklear, City of Raleigh Public Utilities Department
James Lastinger, USACE, Raleigh Regulatory Field Office
P: \50022492 \Aden \Permits \Edwards Mill (iioo) \DWQ Cover Letter.docx

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Office Use Only:
Corps action ID no.
DWQ project no.
Form Version 1.4 January 2009
Pre - Construction Notification (PCN) Form
A. Applicant Information
1. Processing
1 a. Type(s) of approval sought from the Corps:
❑X Section 404 Permit ❑ Section 10 Permit
1b. Specify Nationwide Permit (NWP) number: 12 or General Permit (GP) number:
1c. Has the NWP or GP number been verified by the Corps?
© Yes ❑ No
1d. Type(s) of approval sought from the DWQ (check all that apply):
Q 401 Water Quality Certification — Regular ❑ Non -404 Jurisdictional General Permit
❑ 401 Water Quality Certification — Express © Riparian Buffer Authorization
le. Is this notification solely for the record
because written approval is not required?
For the record only for DWQ
401 Certification:
❑ Yes Q No
For the record only for Corps Permit:
® Yes ❑ No
1f. Is payment into a mitigation bank or in -lieu fee program proposed for
mitigation of impacts? If so, attach the acceptance letter from mitigation bank
or in -lieu fee program.
❑ Yes ❑X No
1g. Is the project located in any of NC's twenty coastal counties. If yes, answer 1 h
below.
❑ Yes No
1 h. Is the project located within a NC DCM Area of Environmental Concern (AEC)?
❑ Yes ❑ No
2. Project Information
2a. Name of project:
Richland Creek Stream Relocation and Sanitary Sewer Replacement
2b. County:
Wake
2c. Nearest municipality / town:
City of Raleigh
2d. Subdivision name:
2e. NCDOT only, T.I.P. or state project no:
3. Owner Information
3a. Name(s) on Recorded Deed:
3b. Deed Book and Page No.
3c. Responsible Parry (for LLC if
applicable):
City of Raleigh (Public Utilities Department)
3d. Street address:
3324 Lake Woodard Drive
3e. City, state, zip:
Raleigh, NC 27604
3f. Telephone no.:
919- 996 -4540
3g. Fax no.:
919- 857 -4545
3h. Email address:
Page 1 of 10
PCN Form — Version 1.4 January 2009

4. Applicant Information (if different from owner)
4a. Applicant is:
❑ Agent ❑ Other, specify:
4b. Name:
4c Business name
(if applicable):
4d. Street address:
4e. City, state, zip:
4f. Telephone no.:
4g. Fax no.:
4h. Email address:
5. Agent/Consultant Information (if applicable)
5a. Name:
Matthew Watt, PE
5b. Business name
(if applicable):
Dewberry Engineers Inc. (Dewberry)
5c. Street address:
2301 Rexwoods Drive Suite 200
5d. City, state, zip:
Raleigh, NC 27607
5e. Telephone no.:
919 -424 -3749
5f. Fax no.:
919- 881 -9923
5g. Email address:
mwatt @dewberry.com
Page 2 of 10

B. Project Information and Prior Project History
1. Property Identification
1a. Property identification no. (tax PIN or parcel ID):
0784143758 000
1b. Site coordinates (in decimal degrees):
Latitude: 35.7976 Longitude: -78.7262
1c. Property size:
14.23 acres
2. Surface Waters
2a. Name of nearest body of water to proposed project:
Richland Creek
2b. Water Quality Classification of nearest receiving water:
QNSW
2c. River basin:
Neuse
3. Project Description
3a. Describe the existing conditions on the site and the general land use in the vicinity of the project at the time of this
application:
Oxbowing of Richland Creek has resulted in the exposure of a 15" terra -cotta sanitary sewer line within the streambed Streambank erosion has
moved the bank such that the buned portion of sanitary sewer runs below the top of bank, parallel to Richland Creek This portion of sanitary sewer is
located on the property of The Raleigh Elementary School.
3b. List the total estimated acreage of all existing wetlands on the property:
3c List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:
3d. Explain the purpose of the proposed project:
See Attachment A for additional detail
3e. Describe the overall project in detail, including the type of equipment to be used:
See Attachment A for additional detail
4. Jurisdictional Determinations
4a. Have jurisdictional wetland or stream determinations by the
Corps or State been requested or obtained for this property /
project (including all prior phases) in the past?
❑ Yes ❑X No ❑ Unknown
Comments:
4b. If the Corps made the jurisdictional determination, what type
of determination was made?
Preliminary Final
4c. If yes, who delineated the jurisdictional areas?
Name (if known):
Agency /Consultant Company:
Other:
4d. If yes, list the dates of the Corps jurisdictional determinations or State determinations and attach documentation.
5. Project History
5a. Have permits or certifications been requested or obtained for
this project (including all prior phases) in the past?
❑ Yes ❑ No Q Unknown
5b. If yes, explain in detail according to "help file" instructions.
6. Future Project Plans
6a. Is this a phased project?
❑ Yes X❑ No
6b. If yes, explain.
Page 3 of 10
PCN Form — Version 1.4 January 2009

C. Proposed Impacts Inventory
1. Impacts Summary
1 a. Which sections were completed below for your project (check all that apply):
❑ Wetlands Q Streams — tributaries ❑X Buffers ❑ Open Waters ❑ Pond Construction
2. Wetland Impacts
If there are wetland impacts proposed on the site, then complete this question for each wetland area impacted.
2a.
Wetland impact
number
Permanent (P) or
Temporary
2b.
Type of impact
2c.
Type of wetland
2d.
Forested
2e.
Type of jurisdiction
Corps (404,10) or
DWQ (401, other)
2f.
Area of
impact
(acres)
W1 -
Choose one
Choose one
Yes /No
-
W2 -
Choose one
Choose one
Yes/No
-
W3 -
Choose one
Choose one
Yes /No
-
W4 -
Choose one
Choose one
Yes /No
-
W5 -
Choose one
Choose one
Yes /No
-
W6 -
Choose one
Choose one
Yes /No
-
2g. Total Wetland Impacts:
2h. Comments:
3. Stream Impacts
If there are perennial or intermittent stream impacts (including temporary impacts) proposed on the site, then complete this
question for all stream sites impacted.
3a.
Stream impact
number
Permanent (P) or
Temporary m
3b.
Type of impact
3c.
Stream name
3d.
Perennial (PER) or
intermittent (INT)?
3e.
Type of
jurisdiction
3f.
Average
stream
width
(feet)
3g.
Impact
length
(linear
feet)
S1 P
Fill
Richland Creek
PER
Corps
10
140
S2 P
Relocation
Richland Creek
PER
Corps
10
-105
S3
Choose one
S4
Choose one
-
-
S5 -
Choose one
_
S6 -
Choose one
_
3h. Total stream and tributary impacts
35
3i. Comments:
The goal of the stream location is to minimize to the extent possible stream bank erosion that could threaten the sanitary sewer line and provide a
perpendicular sanitary sewer stream crossing Approximately 140 LF of the creek will be abandoned and a new channel, approximately 105 LF in
length will be established, resulting in a net 35 LF stream loss
Page 4 of 10
PCN Form — Version 1.4 January 2009

4. Open Water Impacts
If there are proposed impacts to lakes, ponds, estuaries, tributaries, sounds, the Atlantic Ocean, or any other open water of
the U.S. then individually list all open water impacts below.
4a.
Open water
impact number
Permanent (P) or
Temporary
4b.
Name of waterbody
(if applicable)
4c.
Type of impact
4d.
Waterbody
type
4e.
Area of impact (acres)
01 -
Choose one
Choose
02 -
Choose one
Choose
03 -
Choose one
Choose
04 -
Choose one
Choose
4f. Total open water impacts
4g. Comments:
S. Pond or Lake Construction
If pond or lake construction proposed, the complete the chart below.
5a.
Pond ID number
5b.
Proposed use or
purpose of pond
5c.
Wetland Impacts (acres)
5d.
Stream Impacts (feet)
5e.
Upland
(acres)
Flooded
Filled
Excavated
Flooded
Filled
Excavated
P1
Choose one
P2
Choose one
5f. Total:
5g. Comments:
5h. Is a dam high hazard permit required?
❑ Yes ❑ No If yes, permit ID no:
5i. Expected pond surface area (acres):
5j. Size of pond watershed (acres):
5k. Method of construction:
6. Buffer Impacts (for DWQ)
If project will impact a protected riparian buffer, then complete the chart below. If yes, then individually list all buffer impacts
below. If any impacts require mitigation, then you MUST fill out Section D of this form.
6a. Project is in which protected basin?
❑X Neuse ❑ Tar - Pamlico ❑ Catawba ❑ Randleman ❑ Other:
6b.
Buffer Impact
number —
Permanent (P) or
Temporary
6c.
Reason for impact
6d.
Stream name
6e.
Buffer
mitigation
required?
6f.
Zone 1
impact
(square
feet )
6g.
Zone 2
impact
(square
feet
B1 P
Buffer lost due to relocation
Richland Creek
No
3,823
2,605
B2 P
Buffer lost due to relocation
Richland Creek
No
3,106
1,862
B3 P
New buffer segment
Richland Creek
No
-2,728
-2,111
B4 P
New Buffer Segment
Richland Creek
No
-2,581
-1,798
B5 -
Yes/No
B6 -
Yes/No
6h. Total Buffer Impacts: 1,620 558
6i. Comments: An estimated 6,929sf area of Zone 1 and 4,467sf of Zone 2 buffer will be lost due to the abandoned stream segment The new stream
segment will restore 5,309sf of Zone 1, and 3,909sf of Zone 2 buffer, resulting in a net loss of 1,620 sf Zone 1 and 558 Zone 2
Page 5 of 10

D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
See Attachment A for Additional Information
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.
Contractor will minimize impacts to area by confining work area to minimal extents possible and using erosion control devices A pump - around will be
used for the duration of the whole project to ensure all work occurs in the dry
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?
❑ Yes ❑X No
2b. If yes, mitigation is required by (check all that apply):
❑ DWQ ❑ Corps
2c. If yes, which mitigation option will be used for this
project?
❑ Mitigation bank
❑ Payment to in -lieu fee program
❑ Permittee Responsible Mitigation
3. Complete if Using a Mitigation Bank
3a. Name of Mitigation Bank:
3b. Credits Purchased (attach receipt and letter)
Type: Choose one
Type: Choose one
Type: Choose one
Quantity:
Quantity:
Quantity:
3c. Comments:
4. Complete if Making a Payment to In -lieu Fee Program
4a. Approval letter from in -lieu fee program is attached.
❑ Yes
4b. Stream mitigation requested:
linear feet
4c. If using stream mitigation, stream temperature:
Choose one
4d. Buffer mitigation requested (DWQ only):
square feet
4e. Riparian wetland mitigation requested:
acres
4f. Non - riparian wetland mitigation requested:
acres
4g. Coastal (tidal) wetland mitigation requested:
acres
4h. Comments:
5. Complete if Using a Permittee Responsible Mitigation Plan
5a. If using a permittee responsible mitigation plan, provide a description of the proposed mitigation plan.
Page 6 of 10
PCN Form — Version 1.4 January 2009

6. Buffer Mitigation (State Regulated Riparian Buffer Rules) — required by DWQ
6a. Will the project result in an impact within a protected riparian buffer that requires
buffer mitigation?
❑ Yes No
6b. If yes, then identify the square feet of impact to each zone of the riparian buffer that requires mitigation. Calculate the
amount of mitigation required.
Zone
6c.
Reason for impact
6d.
Total impact
(square feet)
Multiplier
6e.
Required mitigation
(square feet)
Zone 1
3 (2 for Catawba)
Zone 2
1.5
6f. Total buffer mitigation required:
6g. If buffer mitigation is required, discuss what type of mitigation is proposed (e.g., payment to private mitigation bank,
permittee responsible riparian buffer restoration, payment into an approved in -lieu fee fund).
6h. Comments:
Page 7 of 10

E. Stormwater Management and Diffuse Flow Plan (required by DWQ)
1. Diffuse Flow Plan
1a. Does the project include or is it adjacent to protected riparian buffers identified
❑X Yes ❑ No
within one of the NC Riparian Buffer Protection Rules?
1 b. If yes, then is a diffuse flow plan included? If no, explain why.
This project will result in no change to the diffuse flow patterns
❑ Yes ❑X No
2. Stormwater Management Plan
2a. What is the overall percent imperviousness of this project?
0
2b. Does this project require a Stormwater Man a ement Plan?
❑ Yes No
2c. If this project DOES NOT require a Stormwater Management Plan, explain why:
Disturbed area will be less than 1 acre
2d. If this project DOES require a Stormwater Management Plan, then provide a brief, narrative description of the plan:
2e. Who will be responsible for the review of the Stormwater Management Plan?
3. Certified Local Government Stormwater Review
3a. In which local government's jurisdiction is this project?
City of Raleigh
❑ Phase II
3b. Which of the following locally- implemented stormwater management programs
❑ NSW
❑ USMP
apply (check all that apply):
❑ Water Supply Watershed
© Other: Not Required
3c. Has the approved Stormwater Management Plan with proof of approval been
❑Yes ❑ No
attached?
4. DWQ Stormwater Program Review
0Coastal counties
❑HQW
4a. Which of the following state - implemented stormwater management programs apply
ORW
(check all that apply):
H Session Law 2006 -246
QOther: None
4b. Has the approved Stormwater Management Plan with proof of approval been
❑ Yes ❑ No
attached?
5. DWQ 401 Unit Stormwater Review
5a. Does the Stormwater Management Plan meet the appropriate requirements?
❑ Yes ❑ No
5b. Have all of the 401 Unit submittal requirements been met?
❑ Yes ❑ No
Page 8 of 10
PCN Form — Version 1.4 January 2009

F. Supplementary Information
1. Environmental Documentation (DWQ Requirement)
1a. Does the project involve an expenditure of public (federal /stateAocal) funds or the
Yes
❑ No
use of public (federaUstate) land?
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
[]Yes
Q No
(North Carolina) Environmental Policy Act (NEPA/SEPA)?
1c. If you answered "yes" to the above, has the document review been finalized by the
State Clearing House? (If so, attach a copy of the NEPA or SEPA final approval
letter.)
❑ Yes
❑ No
Comments:
2. Violations (DWQ Requirement)
2a. Is the site in violation of DWQ Wetland Rules (15A NCAC 2H .0500), Isolated
Wetland Rules (15A NCAC 2H .1300), DWQ Surface Water or Wetland Standards,
❑ Yes
❑X No
or Riparian Buffer Rules (15A NCAC 2B .0200)?
2b. Is this an after - the -fact permit application?
❑ Yes
❑X No
2c. If you answered "yes" to one or both of the above questions, provide an explanation of the violation(s):
3. Cumulative Impacts (DWQ Requirement)
3a. Will this project (based on past and reasonably anticipated future impacts) result in
❑ Yes
❑X No
additional development, which could impact nearby downstream water quality?
3b. If you answered "yes" to the above, submit a qualitative or quantitative cumulative impact analysis in accordance with the
most recent DWQ policy. If you answered "no," provide a short narrative description.
4. Sewage Disposal (DWQ Requirement)
4a. Clearly detail the ultimate treatment methods and disposition (non- discharge or discharge) of wastewater generated from
the proposed project, or available capacity of the subject facility.
Wetted debris
will be collected onto a truck and transported to a City of Raleigh dewatenng facility that will allow for evaporation
of wastewater
collected during this project.
Page 9 of 10
PCN Form — Version 1.4 January 2009

8. Endangered Species and Designated Critical Habitat (Corps Requirement)
58. WWI this projed ooau in or near an area with tsderely protected spades or
habbl?
❑ Yes ® No
fib. Have you checked with the USFWS concembV Endangered Species Act
Yes ®No
❑
impacts?
k. If yes, indicate the USFWS Fisld Olfioe you have contacted.
-
Sd. What data sources did you use to determine whether your site would impact Endangered Spades or Destnmted Critical
Habitat?
NC National hteftge Program online database
8. Essential Fish Habitat (Corps Requirement)
89. Will this project occur In or near an area designated as essential fish habitat?
❑ Yes ❑ No
8b. What data sources did you use to determine whether your eke would impact Essential Fish HOW
T. Historic or Prehistoric Ctdhw l Resounes (Corp Requirement)
78. WIt this Pojed occur in or near an area that the state. federal or trawl
OWN ((e�Nallmal H T de�natlon or p
g�� 9 ProP�� scant in
❑ Yes ❑ No
North Carolina history and ardeeokW?
7b. What data sources did you use to determine whether your ske would impact histortc or archeological rasources?
S. Flood Zone Designation (Corp Requirement)
8a. Will this projed occur in a FB4A4esigmded 100-yser floodpkdn?
❑ Yes ®No
8b. Kyes. explain fhow project meete FE lA reWlretrenW.
80. What scuroe(s) did you use to make the floodplaln determination?
FEMA FIRM Map 037078 M. EtfecOn May 2.2WO
Ruffin L. Hall
City Manager
City of Raleigh
Post Office Box 590
Raleigh• . North Carolina 27602
..pp.. W.�y.NY .awr �Gro
Apply enYs re
Date
(Apefft eknebae la Vaud ordy U an euftrkdon
ldff ftM Be 9 IS PrOWWO
Page 10 of 10

SIGNATURE AUTHORIZATION
wwwjv1*hnc gov
1, Rufrm Hall, City Manager, do hereby authorize Louis M. Buonpane, Sr. Enterprise
Programs Manager, to execute on my behalf any and all documents requiring my signature.
This authorization shall be effective beginning December 21 through December 29, 2013 and
continue until written amendment is executed to alter or end this authorization.
This nineteenth day of December, 2013.
A4r-
Ruffirnall City ar
One Exchange Plaza City of Raleigh Municipal Building
1 l= xftnge Plaza. Suns 1020 Post Office Box 590 • Raleigh 222 Vilest Hargell Street
Raleigh. North Carolina 27601 North Carolina 27602 -0590 Raleigh, North Carolina 27601
(MWling Addrm)
/hfidedon RecyeredRVer

Attachment A —Additional Information
3.3.d Explain the purpose of the proposed project
The purpose of the project is to replace a segment of 15" terra -cotta sanitary sewer that has become exposed due
to stream bank erosion with ductile iron piping, and relocate Richland Creek in the immediate vicinity of the
sanitary sewer line. Relocation of the stream will be executed to achieve two goals: 1. Create a perpendicular
sewer line crossing. 2. Reduce the risk of future stream bank erosion that could threaten the integrity of the new
ductile iron sewer line.
3.3.e. Detailed project description including equipment to be used
An oxbow in Richland Creek has exposed a 60LF segment of 15" terra cotta sanitary sewer line, including three bell
joints. A sewer pump around will be established between the nearest upstream and downstream manholes. All
work will take place "in the dry" through use of a stream pump around and coffer dams, as required.
Approximately 100 LF of the terra cotta sewer line will be replaced in place with W ductile iron pipe. Native
streambed material (to a 1 foot depth) will be raked out of the section of stream to be abandoned and will be
stored until a new channel is formed. Fill material will be brought in to fill in the existing segment of stream.
A new stream channel will dug, approximately 10 ft wide such that the sanitary sewer line crosses the stream
perpendicularly and with enough curvature to eliminate, to the extent possible, downstream impacts. The
reserved stream bed material will be placed in the new stream channel prior to removal of the pump around.
The new stream bank will be contoured to match the original grade. Rip rap will be placed along the stream bank
in the immediate vicinity of the new perpendicular sanitary sewer aerial crossing, extending only the width of the
sewer easement. Coir matting will be installed in the remaining areas of disturbed stream bank and buffer. The
entire area will be reseeded and planted with willow stakes immediately after completing construction. Traditional
sediment control devices and conventional construction equipment will be used.
D.La Specifically describe measures taken to avoid or minimize the proposed impacts in designing project.
The placement of rip -rap will be limited to the area immediately surrounding the sanitary sewer aerial and will not
intrude into the stream. A pump- around will be used during stream relocation to ensure all work occurs in the dry.
The new stream channel will be configured to provide a meandering path that will reduce impacts to the
downstream stream bank. A cross vane will be installed to provide energy dissipation in the new stream channel
and allow for a gradual slope of the channel. After construction is completed the disturbed area will be covered
with coir matting and reseeded with willow stakes.

�jp-

Figure is Facing northeast. Photo shows 15" terra cotta sanitary
sewer line (runs vertically in photo) that has become exposed due
to oxbowing of Richland Creek. Erosion has exposed three bell
joints.
Figure 2: Facing northeast, approximately 20 feet behind the
location of Figure i. Centerline of terra cotta sanitary sewer runs
underneath the bottom of the stream bank, parallel to Richland
Creek. Additional future erosion threatens to expose this section
of sanitary sewer line, similar to that of Figure i.
1100 Edwards Mill Rd

S 1 = 140 LF STREAM LOSS
RALEIGH SCHOOL DR
/ 15" TERRA COTTA
SANITARY SEWER LINE
� /
I
B2= 33,106 SQ FT ZONE 1
1,862 SQ FT ZONE 2 IMPACTS /
DUE TO ABANDONMENT OF STREAM /
SEGMENT
� 1
aut
vrSANITARY SEWER EASEMENT
/—B1 =3,643 SQ FT ZONE 1
2,605 SQ FT ZONE 2
IMPACTS DUE TO
ABANDONMENT OF
STREAM SEGMENT
APPROXIMATE TOP OF BANK
�RICHLAND CREEK �
\ b
SEAL '
037518 y.i -
'•:� ot- es-'�: •� - SCALE: 1" = 40'
••;!!G I NE:P 40' 20' 0' 40' 80'
w ,,`��
DATE TITLE SHEET No.
Dewberr
� y 12J3012013 RICHLAND CREEK STREAM RELOCATION
"'' Dewberry Engineers, Inc. AND SANITARY SEWER REPLACEMENT
zLA oosoHrvE PROD. NO.
R EXISTING CONDITIONS
AL E 1
TE2 2H
00
RALEIGH W 50022492
-
PHONE B1.1B EBl BD]B
FAX 919 MI M3

PROPOSED LOCATION
OF CHANNEL BLOCK
SEE DETAIL, SHEET 6
PROPOSED LOCATION
OF NEW CROSS VANE
SEE DETAIL, SHEET 7
/
t�,• / / '`NEW 16" DIP SANITARY
/ SEWER LINE
/ / SANITARY SEWER EASEMENT
REMOVE & REUSE
: • Q' • ` + + + + ' BED MATERIAL
_� + + ` • IN NEW CHANNEL
` • • B3 =2,581 SO FT ZONE 1
•/• • 1,798 SO FT ZONE 2
• + + \ NEW BUFFER
RALEIGH SCHOOL DR • •
+ + •
+ + + +
+ • + + + +
B4 =2,728 SO FT ZONE 1 �' • ` • '/ `
2,111 SO FT ZONE 2 •
NEW BUFFER •`
S2 =105 LF OF
NEW STREAM CHANNEL /
PLACEMENT OF RIP RA /
WILL BE LIMITED TO /
THE EXTENTS OF THE
SANITARY SEWER EASEMENT /
SEAL
037518ry?
n
'.��,,,�,TtiEI�V � • gip. `��.
+ + +
+
. •4/
+
+
' V \
+
+ •
• +
` PROPOSED LOCATION
OF CHANNEL BLOCK
SEE DETAIL, SHEET 6
APPROXIMATE TOP OF BANK
RICHLAND CREEK
COIR MATTING & RESEEDING
SCALE: 1" = 40' + • • W /WILLOW STAKES
40' 20' 0' 40' 80' RIP RAP
®
L)AIE
TITLE
SHEET NO.
Dewberry
12/3012013
RICHLAND CREEK STREAM RELOCATION
�
w
Dewberry Engineers, Inc.
AND SANITARY SEWER REPLACEMENT
n
2901 fiEXY/OOQS DRIVE
SUITE 200
PROJ. No.
NEW STREAM CONFIGURATION
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APPROXIMATE EXISTING
GROUND
TIE TO GRADE
.5 T MIN
RIP RAP AND GEOTEXTILE ALONE SHOULD NOT BE USED ON SLOPES GREATER THAN 2H:1V.
ON SLOPES BETWEEN 2H:1V AND 1.5H:IV RIP RAP MAY BE BEDDED IN 6' OF #57 STONE. CONSULT ENGINEER PRIOR
INSTALLATION.
THICKNESS OF RIP RAP (T) SHOULD BE NO LESS THAN 1.5 X D50 (APPROXIMATELY 21' FOR CLASS II).
DEPTH OF THE TOE SHOULD BE APPROXIMATELY 1.5 X THICKNESS (APPROXIMATELY 30' FOR CLASS 0).
RIP RAP SLOPE PROTECTION IS MODIFIED FROM VDH&T AND NCDENR LAND QUALITY SECTION EROSION AND
SEDIMENT CONTROL DESIGN MANUAL
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RICHLAND CREEK STREAM RELOCATION
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STABILIZATION

APPROVED DMIERNG OEM CWT "
IMPERVIOUS SHEETING PROImE FlOSFV E ORANAGE FROM OLT BAG
10 8'iREAY pVERSiE
BASE FLOW .I FOOT PUMPS
WORK AREA
(2 FOOT MM) pSQ1ARO$ NOSES
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SECTION A=A
CROSS SECTION OF SANDBAG DIKE P TAG PHA
FLOW FLAW
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DISSFATOR NAME OF RP RAP 7lIAT WIOCN CAN
OR
SANDBAGS OONP1EUD N ONE DAY
PLAN VIEW
mm
1. SANDBAG DOLES SHALL BE SMIUAIED AT 110E IIPSWM Alm DUNNS M ENDS OF 711E WORK
AREA Alm SWAM FLOW SHALL BE PUMPED AROUND IHE WORK AREA THE PIMP SHOULD
OMC NARGE Cft0 A STABLE VERJOWY IXSSPAIER CONSTRUCTED OF RP RAP OR SANDBAGS
*WAM FROM INE WORK AREA OWL BE PUMPED TO A SEDOIENT FD.IERNG MEASURE SUON AS A
ORNAMING BASIN, SEDOMW 0^ OR OTHER APPROVED DEANS THE MEASLOM SHALL BE
UAI D SM UHAT IHO WATER ORM BACK DOW W OMANNIL MW DOE 001IN41RFAM ONOL
* AT THE 00 OF EACH WORK DAY. INE DWUR6E CHANNEL SHALL BE YAWNER
w WHEN REMCING IHE CULVERTS ON REACH a INS CONTRACICR SNALL PLACE SAND BAGS ACROSS
DK 9M DCWNSWEMM FACE E EACH PPE TO PREVINT BACM M DURING PUMP AROUND
ACTrAM
TEMPORARY PUMP AROUND
N.T.S
12/30/2013 RICHLAND CREEK STREAM RELOCATION
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BACKFILLED CHANNEL
ONLY S TOP WIDTH IS SHOWN
ON THE PLANS. CHANNEL BLOCK
SHALL BE CONSTRUCTED AS
SHOWN IN THIS DETAIL.
FINISHED GRADE rl •s
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COMPACTED
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