20202004 Ver 1_Riparian Buffer Authorization Request_20201220

Buffer Authorization Application Form
15ANCAC 02B .0233 (8)(b), .0243 (8)(b), .0250 (11)(b), .0259 (8)(b), .0267 (11)(c), .0607 (e)(2) Buffer Authorization Online Fo
Update 10/23/2018
Original Submittal 12/20/2020
A. Owner/Applicant Information
General Information
Primary Contact Email: *
Who is submitting the application?*
1. Property Owner Information:
la. Name on Recorded Deed:*
1b. Responsible Party:
1c. Mailing Address:*
1d. Telephone:* 252-205-0860
3. Agent Information:
3a. Name:
3b. Company Affiliation:
3c. Mailing Address:
[e-mail]
Rease list the contact person's en -ail for questions or payrrent on this project if needed.
r- Owner
r- Applicant other than Owner
W Agent
Williams Builders of Rocky Mount, LLC
David Williams
(for Corporations)
Street Address
8820 Thomas Road
Address Line 2
City
State / Province / Fbgion
Rocky Mount
NC
Postal / Zip Code
Country
27803-9000
Us
le. Email Address:*
[e-mail]
Street Address
Address Line 2
City State / Province / Fegion
Fbstal / Zip Code Country
3d. Telephone: 3e. Email Address:
3f. Attach a signed and dated copy of the agent Click the upload button or drag and drop files hereto attach docurrent
authorization form. RDF Only
B. Project Information and Prior Project History
1. Project Information

la. Name of Project:* River Stone Subdivision
(Subdivision, facility, or establishrrent narre)
1b. Is this a publicly -funded transportation project?*
r Yes
r No
1d. Subdivision Name: River Stone Subdivision
le. Nearest Wilson, NC
Municipality:
1f. Property Size: 7.21
acres
1g. County (or Counties) where the project is located:*
Nash
1h. Property ID# Date of Purchase
371600743014 5/8/2018
Tax RN or Parcel id
1 i. Deed Information
Type of Book Book#11 Page#
Deed F
615-618
Map 22 272
1j. Attach a copy of the recorded map that indicates when the lot was last platted.
aick the upload button or drag and drop files here to attach docunent
Plat for Buffer Authorization. pdf 557.07KB
R7F only
1k. How would you like to provide the Latitude and Longitude information?*
r Address Lookup
r Manually
Latitude * 35.8436
Longitude*-77.9297
11. Is the project located in any of North Carolina's twenty coastal counties?
r Yes
r No
2. Surface Waters
2a. Name of the nearest body of water to proposed project:*
Unnamed Tributary to City of Rocky Mount
Tar River Reservoir
2b. Water Quality Classification of nearest receiving water:*
WS-IV, NSW
2c. List the total estimated linear feet of all existing streams (intermittent and perennial) on the property:*
780
(linear feet only)
A

3. Project Description:
A
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:
THE TRACT ON WHICH THE PROPOSED CONSTRUCTION IT TO TAKE PLACE IS
PREDOMINANTLY MILDLY SLOPING (2-6%) AND IS COMPRISED OF NORFOLK
LOAMY SAND. AGRICULTIRE LAND IS THE CURRENT USE OF THIS PROPERTY.
THE EXISTING SITE IS LOCATED ADJACENT TO A TRIBUTARY TO CITY OF
ROCKY MOUNT TAR RIVER RESERVOIR AND THE STREAM IS DEPICTED AS AN
INTERMITENT STREAM ON THE NASH COUNTY SOIL SURVEY SHEET #12.
3b. Attach an 8 % x 11 excerpt from the most recent version of the USGS topographic map indicating the location of the site.
Click the upload button or drag and drop files here to attach docurrent
6384A-Quad Sheet.pdf 223.71 KB
FDF only
3c. Attach an 81/z x 11 excerpt from the most recent version of the published County NRCS Soil Survey Map depicting the
project site.
Click the upload button or drag and drop files here to attach docurrent
6384A-Nash County Soil Survey.pdf 115.76KB
FDF only
4. Proposed Activity
.................................................................................................
Provide a detailed description of the proposed activity including its purpose and include the type of equipment to be used:
THE PROJECT CONSIST OF THE CONSTRUCTION OF 700 LF OF NEW
ROADAWY WITH MUNICIPAL WATER TO SERVE 12 SINGLE FAMILY
RESIDENTIAL LOTS. THE EQUIPMENT TO BE USE CONSIST OF TRACK HOES,
BULLDOZIERS, PANS, BACKHOES, CONCRETE TRUCKS, ASPHALT PAVERS,
DUMP TRUCKS AND ROLLERS
Attach a site plan as applicable to the project:
nick the upload button or drag and drop files here to attach docurrent
RIVER STONE SUBD - CONST PLANS 02-18-20.pdf 11.46MB
FDF only
5. Jurisdictional Determinations
5a. Have jurisdictional wetlands or stream determinations by the Corps or State been requested or obtained for this
property/project (including all prior phases) in the past?*
C Yes
r• No
6. Project History
6a. Have permits or certifications been requested or obtained for this project (including all prior phases) in the past?*
r Yes
r• No
7. Future Project Plans
7a. Is this project a phased project?* r Yes
r No
C. Proposed Impacts Inventory
Buffer Impacts
Project is in which protected Basin?*

r Neuse River Basin (15A NCAC 02B.0233)
r Catawba River Basin (15A NCAC 02B.0243)
r Randleman Lake Watershed (15A NCAC 02B.0250)
r Tar -Pamlico River Basin (15A NCAC 026.0259)
r Jordan Lake Watershed (15A NCAC 02B.0267)
r Goose Creek Watershed (15A NCAC 02B.0606 & 15A NCAC 02B.0607)
Individually list all buffer impacts below. If any impacts require mitigation, then you MUST fill out Section D of this form.
Site# - Reason
Stream Name
Buffer Impact*
Impact Type *
Zone 1
Zone 2
By -Pass Channel
Unnamed
Permanent
Exempt
450.00
300.00
1
Tributary to
(P)
Square
Square
bhp label (e.g. Fbad
City of
Perm or Tenp
Feet
Feet
Crossing 1)
Rocky
Mount Tar
River
Reservoir
Total Zone 1 Impacts: 450.00
Total Zone 2 Impacts: 300.00
Total Buffer Impacts: 750.00
Comments:
WE WILL BE CONSTRUCTING A LEVEL SPREADER TO PROVIDE DIFFUSED
FLOW WITH A BY-PASS CHANNEL THROUGH THE TAR-PAM BUFFER
D. Impact Justification and Mitigation
1. Avoidance and Minimization
1a. Specifically describe measures taken to avoid or minimize the proposed impacts in designing the project.*
STORM DRAINAGE SYSTEM HAS BEEN DESIGNED TO REQUIRE ONLY ONE BY-
PASS CHANNEL THROUGH THE BUFFER
1b. Specifically describe measures taken to avoid or minimize the proposed impacts through construction techniques.*
ALL WORK WILL OCCUR OUTSIDE OF TAR-PAM BUFFER WITH EXCEPTION OF
ONE BY-PASS CHANNEL AND THE TAR-PAM BUFFER WILL BE FLAGGED TO
NOTIFY CONTRACTOR OF EXISTING BUFFER LIMITS AND THE AREA WITHIN
THE TAR-PAM BUFFER TO BE IMPACTED WILL BE THROUGHLY FLAGGED TO
PREVENT NON- APPROVED BUFFER IMPACTS.
E. Diffuse Flow Plan
1a. What type of SCM are you providing?*
W Level Spreader
r Vegetated Conveyance (lower SHWT)
r Wetland Swale (higher SHWT)
r Proposed project will not create concentrated stormwater flow through the
buffer
r Other SCM that removed minimum of 30% nitrogen
1c. Diffuse Flow Documentation* Click the upload button or drag and drop files here to attachdocunent
SPUTTER BOX WITH SOUR HOLE FOR BUFFER
351.19KB
CROSSING PERMIT.pdf
FDF only
F. Supplementary Information ^

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
Violations
2a. Is the site in violation of DWR Wetland Rules (15A NCAC 02H .0500), Isolated Wetland Rules (15A NCAC 02H .1300), DWR
Surface Water or Wetland Standards, or Riparian Buffer Rules (15A NCAC 02B .0200)?
r Yes
r No
2b. Is this an after -the -fact buffer authorization application?
C Yes
r No
G. Additional Information
Please upload any additional information you would like the Division to consider during application review.
Additional Attachments: aick the upload button or drag and drop files here to attach document
FDF only
Additional Comments:
H. Sian and Submit
By digitally signing below, I certifythat:
o I have given true, accurate, and complete information on this form;
o I agree that submission of this form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic
Transactions Act")
o 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');
o I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND
o I intend to electronically sign and submit the application form."
Print Name:* Ron Sutton
Signature
�ld
Submission Date: 12-20-2020
(Auto populated field)

Initial Review
Is this accepted into the review process?*
Is this project a public transportation
project?*
ID#*
Version:*
Select Reviewer:
Select Reviewing Office*
Has payment been received?*
r Yes r No
f Yes
r No
20202004
1
Stephanie Goss:eads\szgoss
Raleigh Regional Office - [phone]
r No Payment Needed
f Fee Received
r Need Fee - send electronic notification

Nash County Soil Survey — River Stone Subdivision
U.aELPm_EN-r_ AGRbCULTLRF
mE CGNSFWAMONSERcE SHEET NO,12 OF 12

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ahfies as an exception to the Frovis ales of 'tha Nash Count'
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N 04 032'08" E
woo,
N 01 °02'03" E
99.9T
N 0300637" h
100.00,
N 06 °36'00" 1
100.00,
N 11 °32 38"
149.95'
m
v
I�
I, RICHARD R. HERRING, CERTIFY THAT THE SURVEY 15 OF LAND
a a �STC '• Air, °
h'1
IN AN UNREGULATED AREA AND
4�P .
•
S E A
1, RICHARD R. HERRING CERTIFY THAT THIS MAP WAS '+
©'
I, A NOTARY PUBLIC OF WILSON COUNTY AND STATE
DRAWN UNDER MY SUPERRVISION FROM AN ACTUAL
SURVEY MADE UNDER MY SUPERVISION THAT THE
• T' L-2609 =
OF NORTH CAROLINA, CERTIFY THAT RICHARD R.
HERRING, A REGISTERED LAND SURVEYOR, -
BOUNDARIES
PERSON
NOT SURVEYED ARE SHOWN AS BROKEN
�,<` °' S U R
ALLY APPEARED BEFORE ME THIS DAY AND ACKNOW-
LINES PLOTTED FROM INFORMATION FOUND IN
BOOK PAGE
•' Q
°+° �°°•�
LEDGED THE EXECUTION OF THE FOREGOING INSTRU-
__ _ _ , ; THAT THE ERROR OF
CLOSURE IS 1#10,000•; THAT THIS PLAT WAS PRE-
�.°`,
'°.
MENT. WITNE MY HAND D O FICIAL S OR
SEAL, THIS DAY 0 19
�,.�`
,
PARED IN ACCORDANCE WITH G.S. 47-30 AS AMENDED.
WITNESS MY ORIGINAL SIGN E, REGISTR ION
NUMBER
A"AL THIS DAY OF
A.D., 19
„
NOTARY PUBLIC
MY COMMISSION EXPIRES' / 't
RICHARD R. HERRING
L-2609
�RP S. GA,p©�fi
NOTARYNORTH CAROLNA, WI D SON COUNTY
PUBLIC AND
NOTARY PUBLIC IS CERTIFIED TO BE CORRECT.
�% THIS INSTRUMENT WAS PRESENTED FOR REGIS-
TRATION AND RECORDED IN THIS OFFICE IN
P BOOK PAGE '2'Z / THIS
D OF , 19 A.D.,
A 0'CL MI.
BY
REGISTER OF DEEDS, WILSON COUNTZY_4-�
REGISTER OF DEEDS,
POINT "A TO V-
S 66 5820" E - 48.77'
S 66 058'20" E - 29.72'
S 55041'00" E - 59.15'
S 42°0530" E - 63.8f
S 5501238" E - 70.69'
S 48032'00" E - 130.17'
S 58 °37'50" E - 10107'
S 3205530" E - 9890'
S 03 °37'50" W - 121.82'
S 17024'08" W - 96.91'
S 06050'16" W - 50.54'
S 25°02'46" E - 70.92'
S 25030'48" E - 95.65'
S 04 °56'00" E - 82.01'
S 0803040" E - 5350'
S 00 °36'50" W - 82, 90'
N 71 °30'30" E - 32.36'
N 13 °36'20" E - 64.92'
N 30011'40" W - 27.09'
R/W
ti
— —z
N 08058'40" E - 249.26'
N 04 °54'40" W - 59.32'
N 32°07'10" E - 108.72'
N 2605840" E - 3a22'
S 60°31'18" E - 172.29'
N 8904730" E - 29.69'
S 57018'40" E - 89.66'
S 45031'40" E - 80.59'
S 08022'30" W - 3398'
S 74 °07 30" E - 32.26'
N 67042'20" E - 44.56'
S 62903'50" E - 52.48'
N 7594Y00" E - 72.42'
S 61 °3750" E - 93 90'
S 02°f0'40" E - 19.8r
N 60°53'40" E - 408'
S 78°12'40" E - 11769'
S 70°16'46" E - 74-60'
S 80°49'16" E - 66.22'
VICINITY MAP N.Ts
REFERENCE:
PLAT BOOK 8, PAGE 74 OF THE NASH COUNTY REGISTRY
Property Of
William Robert Mills
Located In
Rocky Mount Twsp., Nash Co., NC
June 1.994. Scale: 1" = 300'
300 150 0 300 600 900 1200 1500
R. R. Herring & Associates, Inc.
2406 West Nash Street
Wilson, North Carolina 27893
[phone]
RECORDED IN PLAT BOOK , PAGE .

I i l32 i 31
VICINITY MAP I SCOPE OF WORK
THE WORK OF THIS PROJECT INCLUDES THE CONSTRUCTION OF THE STREETS,
WATER SYSTEM, STORM DRAINAGE SYSTEM AND EROSION CONTROL, AS
NECESSARY FOR DEVELOPMENT OF RIVER STONE SUBDIVISION, ROCKY MOUNT
OUTSIDE TOWNSHIP, NASH COUNTY, NORTH CAROLINA.
CP-1
CP-2
SE-1
DT-1
DT-2
DT-3
DT-4
SHEETS
CONSTRUCTION PLAT
CONSTRUCTION PLAN
SEDIMENTATION & EROSION CONTROL PLAN
CONSTRUCTION DETAILS
CONSTRUCTION
CONSTRUCTION
CONSTRUCTION
DETAILS
DETAILS
DETAILS
LEGEND
— — G — — — G
— --W —
b 4JJ
VOW
C -
--T---T
----OHE-
----UGE—
R WL
FLWAY
TPB
WSD
C
EXISTING GAS LINE
EXISTING WATER LINE
EXISTING STORM SEWER LINE
EXISTING SANITARY SEWER LINE
PROPOSED WATER LINE
PROPOSED STORM SEWER LINE
(NOTE: NUMBER IN LINE DENOTES
PIPE SIZE IN INCHES)
EXISTING CABLE TELEVISION CABLE
EXISTING TELEPHONE CABLE
EXISTING OVERHEAD ELECTRIC
EXISTING UNDERGROUND ELECTRIC
REGULATED WETLANDS
FLOODWAY
TAR PAMILCO BUFFER
WATERSHED
EXISTING R/W
PROPOSED R/W
EXISTING EDGE OF PAVEMENT
SURVEY SYMBOLS
•
EXISTING PK NAIL
• EXISTING IRON PIPE
0
NEW PK NAIL
O NEW IRON PIPE
BENCH MARK
* COMPUTED POINT
•
EXISTING RAILROAD SPIKE
■ EXISTING CONCRETE MONUMENT
p
NEW RAILROAD SPIKE
❑ NEW CONCRETE MONUMENT
AXLE
•
EXISTING AXLE
STORM SEWER SYMBOLS
EXISTING FLARED END SECTION
0- PROPOSED FLARED END SECTION
UTILITIES SYMBOLS
0
EXISTING POWER POLE
©
EXISTING CATV PEDESTAL
❑T
EXISTING TELEPHONE PEDESTAL
Q
EXISTING ELECTRICAL PEDESTAL
WATER SYMBOLS
EXISTING FIRE HYDRANT
x
PROPOSED FIRE HYDRANT
-0o- EXISTING VALVE
♦+ PROPOSED VALVE
4 } EXISTING TEE
4 } PROPOSED TEE
EXISTING CROSS
PROPOSED CROSS
F EXISTING PLUG
F PROPOSED PLUG
OW EXISTING WATER METER
® PROPOSED WATER METER
a� EXISTING BLOW OFF
■-41 PROPOSED BLOW OFF
BFP EXISTING BACK -FLOW PREVENTER
MI PROPOSED BACK -FLOW PREVENTER
EROSION CONTROL SYMBOLS
PROPOSED TEMPORARY SEDIMENT TRAP
PROPOSED SEDIMENT BASIN
PROPOSED TEMPORARY ROCK CHECK DAM
PROPOSED INLET PROTECTOR
PROPOSED LEVEL SPREADER
Fe-1
PROPOSED TOPSOIL STOCK PILE
PROPOSED TREE PROTECTION
PROPOSED TEMP. STONE CONSTRUCTION ENTRANCE
PROPOSED ENERGY DISSIPATION PAD
PROPOSED TEMPORARY STRAW/NET LINER
-a-m-4F-s- PROPOSED SILT FENCE
C� I
---10P01180 : z
2-12-2020
PROFESSIONAL SEAL
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Herr'ingmSutton
&
ASSOCIATES •P.A
ENGINEERS • SURVEYORS • PLANNERS
2201 NASH STREET NW - WILSON, NC 27896
TEL [phone] FAX [phone] FIRM LICENSE #C-2310
PROJECT
NUMBER
19-6384A
DATE
November 2019
SURVEYED BY
JB
DESIGNED
BY
RS
DRAFTED
BY
TH
CHECKED
BY
RS
REVISION
NOTES
1
2
3
4
5
6
8
9
10

I
30
RIVIERA DR
\ / I
�I
33 RIVER BEND LANDING
PB 32 P 166
�
a
RIVER
� Z LAKE
PRELIMINARY SITE DATA:
RD
R,R RO
197
BEND EDGEWATER RD
A
SITE
l
CE AR TREES
TOTAL AREA . . . . . . . . 7.21 ACRES
V)
U �
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\ \ \
l CE AR TREE /
ZONING . . . . . . . . . . . RC
W
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5i$�E'S
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~ / / _ —162 —
NO. OF LOTS . . . . . . . . 12 — BUILDABLE
ao
NC
CO
E
— \1 15' \ 100'
82' 25' /
/ /
i /
12 — TOTAL
PROPOSED SUBDIVISION AREA . . . . 7.21 AC — TOTAL
Hwr 97
0.89 — RIPARIAN BUFFER
OD
�
,-
/�__ _ �_
Lot 5 -
0.69 — R/W AREA
Vicinity Map
N
1
\ I \\ I \\
165
',--Lot
20763 SF / °�
5.63 — TOTAL BUILDABLE AREA
Not to Scale
°'
MIN LOT AREA 20,000 SF
/_—/
. . . . . . .
IJ0\
�� ,/ 1 C
MIN LOT WIDTH . . . . . . . 60
MINIMUM BUILDING LINES:
III \
ROPOSED 10 \
'
\\
/� i
/
LINEAR FEET IN STREET . . . 538 LF
FRONT 25
DRAINAGE & \ \ \
/
4
/ / _ / — —
PROPOSED R/W AREA . . . . 0.69 ACRES (0.33 AC IMPERVIOUS)
/ I I
UTILITI\EASEMENT \ \
_ / i
20048 SF
CBU
PARCEL ID NUMBER . . . . . 371600743014
SIDE . . . . . . . . . . 10
INSET "B" m /
PROPERTY REFERENCE DEED BOOK 2933 PAGE 615
SIDE STREET 12.5'
:l I
I I I
\.e o \ \ o
L`Qt 1 `\ \Lot 2\
Lot 3 �'6' /
,6, -- / / N �
REAR . . . . . . . . . . 20'/50'*
o
o
22000� SF \ 2*79 SF \\
20015 SF
/'011 //
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MIN. LOT FRONT @MBL . 60'
\ 11
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MINIMUM REAR SETBACK ON LOTS
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/ / /, IN AGE qb
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7-12 SHALL BE 50'
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RON SUTTON, PE PLS
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10'X20' � se ee
SIGN ESMT ow I� L)I Z� INSET A
HERRING—SUTTON & ASSOCIATES, PA
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PROPO�D SIGN EASEMENT \\
1 \ \
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/ / / /
— �,s�- WOODED
/ /
3 of
/ 50' IR w to ofN No Scale
10' DRAIN/UTILITY ESMT N o
2201 NASH STREET NW
WILSON, NC 27896
L
\ 1 6.9 /
\
�6,,138'
/ — J
5 NON 10' DRAIN/UTILITY
/
-ACCESS ESMT I
ESMT
O'X70'SDT 30' VM 10'X7pSpT � N-ACCESS ESMT
TELE: 252-291-8887
- - -
/
`♦
\
/
18"RCP �o
,Q
��— — — 12"OW — EX WATER LINE
OWNER DEVELOPER:
0`N
/
— — 12"0W
G — G — — — _ 12"OW _�
DAVID WILLIAMS
\ \ — —
- /
/ /
��� E/p ►�
WILLIAMS BUILDERS
2,0W /
Q — -154- — — — — — —
��� EX 6" GAS MAIN ���
OF ROCKY MOUNT, LLC
1 43
\ 2�0w� �"\
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---�—
8820 THOMAS ROCK RD
_
/ C�UR',1
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/ ��, — — —
ROCKY MOUNT, NC 27803-9000
--J \ \ — _
jJE+ R/ TWE / /
/ \ \ / �� /LOt / _,52- — _ _—
/ / 281-82 SF---
TELE: 252-205-0860
1�0791
_
\
/
//—
1000,
I I
PROPOSED 10'x70' SDT \ \��
/
\
/ //� LOt \ / /--/ /_R/W---
/ 21746 SF / -� / ,� /
\,/ ,
P��I��� ,. Cl SWAIE INSET „B„
No Scale
I I I
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PROPOSED 1`0' DRAINAGE \ \ _
&UTILITY EAMNT _ 157-
//
_ / / LO t 9
/ / 25967 SF / c9
/ ////
//
/ / / /i -� y - -_�
1-CBU PAD w/ /
�� 12 OR
15
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4 / / /
18 BOXES /
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�� LOt
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lO ,e'/ /
-
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6„ THK CONC PAD 1000,
Lot 12 Lot 1 1 28712 SF///, /
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___- / _/ / /// /�2�
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III II o
30403 SF �24779 SF --
//-_--
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PRO_PO_SED 5' NON -ACCESS N
- � SEMM NI 0) _
,55 TPB /
J
/ l
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w+F 1q1 // �/�
TAR—PAM SUMMARY:
DRAINAGE AREA PRE & POST = 7.21 AC
CLEARED — — _ _
CLEARED
/ /
rn
//� — _ _ _
/
/ / /� /�/ /, 1
�B5
TOTAL NITROGEN LOADING POST DEVELOPMENT
= 3.71 LB/AC/YR
1 III : N
_
\
— — — — _ _ _ _
/ ,/ / / — /
TOTAL PHOSPHORUS LOADING POST DEVELOPMENT = 0.55 LB/AC/YR
/ II oD
\
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— _ _ —
— — — — J / /
'�'� /� /' / WINSTEAD CROSSING
PRE —DEVELOPMENT Qp 10 = 20.79 CFS
III
�x—
� I
COMMERCIAL PARK
SECTION ONE
POST— DEVELOPMENT Qp10 = 20.31 CFS
III
—
�e IHI
\
I\\
/ G, �/
�e—
PB 36 P 154
% INCREASE PEAK FLOW 10 YR = (2.3%)
I
�
� -- _ .153
—
\ WOODED ! \</ �/
_
/ /
I
NOTES:
151
—
LOTS 1 & 12 WILL NOT BE ALLOWED TO HAVE DRIVEWAY CUTS ONTO NC HWY 58 N. EXCEPT
EXISTING DRIVEWAY TO CT&T FACILITY.
THE 50 FOOT TAR—PAM REPARIAN BUFFER ZONE IS MEASURED FROM STREAM WATER EDGE.
NO ACTIVITY IS PERMITTED ON ZONE 1
— 1 ,.9— �� / I
150_
(1st 30 ). LIMITED ACTIVITY IS ALLOWED IN ZONE 2 (20 ). OWNER/DEVELOPER TO CONSULT G.S. 15A NCAC 2B.0259 BEFORE
DISTURBANCE WITHIN THE BUFFER ZONE OR CALL NCDENR, DIVISION OF WATER QUALITY, SURFACE WATER PROTECTION SECTION FOR
OFFICIAL DETERMINATION.
_
THIS PROPERTY IS NOT LOCATED WITHIN A FEMA DESIGNATED FLOOD HAZARD AREA ACCORDING
TO MAP NUMBER 3720382000K DATED
JUNE 18, 2013.
I
(B61
THIS PROPERTY IS LOCATED WITHIN A WPO—IV—CA NASH COUNTY PROTECTED WATERSHED AREA.
153
�% 7° PB 36 P 153-154
/
PB 36 P 153-154 —
THIS SURVEY WAS PERFORMED WITHOUT THE BENEFIT OF A TITLE COMMITMENT/POLICY AND
IS MADE SUBJECT TO ANY DOCUMENT OF
N/F
I
N/F
WILLIAMS BUILDERS OF
RECORD WHICH MAY AFFECT SUBJECT PROPERTY.
\\\III
4s WILLIAMS BUILDERS OF
ROCKY MOUNT, LLC
DB 2933 P 615
I
I
ROCKY MOUNT, LLC
DB 2933 P 615
PROPERTY IS SUBJECT TO ALL EASEMENTS AND RESTRICTIONS OF RECORD.
II III
II \ \ PARID: 107169
I
PARID: 107164
PROPERTY LINES NOT SURVEYED ARE SHOWN AS BROKEN LINES.
(Ii I'll III
I
II
WETLANDS DELINEATION IS SHOWN OF SKETCH PLAN AS DETERMINED BY WALTER COLE, LSS.
III I . I i 11II
SURVEY SYMBOLS /
WATER SYMBOLS
NCGS GRID MONUMENTS LOCATED WITHIN 2000 FEET.
• EXISTING IRON STAKE (5/8"EIS UNLESS DENOTED OTHERWISE)
PROPOSED BLOW -OFF
ALL DISTANCES ARE HORIZONTAL GROUND DISTANCES UNLESS OTHERWISE NOTED.
RESIDENTIAL R/
• EXISTING IRON PIPE (5/8"EIP UNLESS DENOTED OTHERWISE)
DQ EXISTING VALVE
Y Y
O NEW IRON SET (5/8"NIS UNLESS DENOTED OTHERWISE)
►/ PROPOSED VALVE
AREA COMPUTED BY COORDINATE METHOD.
NO SCALE
0 NO POINT SET
Ow EXISTING WATER METER
DITCHES AND STREAMS ON SUBJECT PROPERTY MAY BE SUBJECT TO TAR—PAM BASIN REGULATIONS AND ARE AS SHOWN.
PROPOSED WATER METER
LINETYPE LEGEND
ALL LOTS WILL BE SERVED BY ON —SITE SEPTIC SYSTEMS APPROVED BY NASH COUNTY ENVIRONMENTAL
HEALTH AND WATER BY NASH
PROPOSED 50' R/W
6"OW PROPOSED WATER LINE
COUNTY WATER DEPARTMENT.
10'
10' I
PROPOSED STORM SEWER LINE
— — G — — — G EXISTING GAS LINE
STORM SEWER SYMBOLS
THIS PROPERTY IS LOCATED IN THE AO—H HORIZONTAL AIRPORT HEIGHT LIMITATION ZONE.
DRAINAGE
& UTILITY
6' 6'
20' PAVEMENT 6' 6' DRAINAGE ,
& UTILITY
— — — 6" OW EXISTING WATER LINE
EXISTING STORM SEWER LINE
(EASEMENT
DITCH SHOULDER SHOULDER DITCH EASEMENTI
C C EXISTING CABLE TELEVISION CABLE
� EXISTING FLARED END SECTION
1 4" PER FT 1" PER FT MAX
— — T — — — T EXISTING TELEPHONE CABLE
— — — FOC EXISTING FIBER OPTIC CABLE
PROPOSED FLARED END SECTION
— — — OHE EXISTING OVERHEAD ELECTRIC
PROPOSED DROP INLET
2" BITUMINOUS PAVING
— — — UGE EXISTING UNDERGROUND ELECTRIC
EXISTING NEUSE BUFFER
8" STONE BASE COURSE
(NOTE: NUMBER IN LINE DENOTES
40'
0' 40' 80' 120'
PIPE SIZE IN INCHES)
Revision
Date
B
Date: November 2019
�"CARa`''`"",
��Essio�?9 "';
Q�
Herringy—Sutton
& Associates P.A.
�
•
River Stone Subdivision
=
Scale: 1" 40'
Map No.
=
Construction Plat
1
a�
_ _
Engineers Surveyors Planners
_
/ Firm License #C 2310
RockyMount Outside Twsp.,Nash
County,NC
Drawn by: RTM/TWH
19—L-6384A
••......�'�2201
Nash Street NW * Wilson,
North Carolina 27896 * [phone]
Sheet No. CP-1

170
165
160
155
150
e2
RIVER BEND LANDING
PB 32 P 166
V �
�i
•
PROPOSED -
DRAINAGE
Lot I
Lot 2
"0
PROPOSED
NON-ACCESS01001
REGRADE DITCHTO
1�/
DAYLIGHT
�I'
RELOCATE DITCH,
u
- ._.... SIGN EASEMENT
i
STA 1 „
..
.1
=■
_
LINE
69'X2" TAPPED PLUG A R SERVICE
RELOCATE DITCH 156.31, I.
II. PROPOSED 10'x70' SDT
6" G S M IN c2.
REGRADE DITCH s PROPOSED 10' DRAINAGE
TO DAYLIGHT & UTILITY EASEMENT
Lot 12 Lot 11
Lot 3
Lot 10
4 �/
Lot 4
PROPOSED 10 SEME "I
& UTILITY EA
2 0W -
STONE COUR
R VE R
ROPOSED 2" WATER LINE
Lot 9
CE AR TR ES
Lot 5
UL UUL—Ut—JAI: =
STA 1 +00
CL EASEMENT "A"I
!!ITTLot 6
6+88.41
'LOW —OFF
^ � STA 1 +47
INTX CL DI0.
TCH
N
� a
�o N
FES #3 Lot '%
STA 2+30 p y�iP
SPLITTER BOX #4 2 rpg
PE 6
Lot 8 _7
5'X5' SCOUR HOLE
INV (IN) 149.50 (12" HDPE)
STA 3+00 \ -
TPB FES #5
PROPOSED 5' NON -ACCESS
_ EASEMENT TP6
N
CLEARED
I II. CLEARED
I
I III i� jp0 l .. TPR
River Stone Court
M■N
•
lxx MCI
I.
_____
NEWIIIIIIIIIIIIIIII
170
165
160
155
150
1 B�
WINSTEA\D CROSSING
COMMERCIAL PARK
SECTION ONE
PB 36 P 154
291
165
160
155
150
145
Easement "A"
I I
MM
165
160
155
150
145
145 145 140 140
0+50 1+00 1+50 2+00 2+50 3+00 3+50 4+00 4+50 5+00 5+50 6+00 6+50 7+00 0+50 1+00 1+50 2+00 2+50 3+00
Cn M N N Cn CO Ln 00 m CO Ln N Cn
LO LO LO LO LO
50' 0 50' 100' 150'
Revision Date B Date: November 2019
HerringSutton & Associates,P.A. Scale: 1" =50'REV WATER UNE PER HIKE PHIWPS 01-27-2020 TH � River Stone Subdivision Map No.
- 1 ° Engineers — Surveyors — Planners / Firm License #C-2310 Construction Plan Drawn by: RTM/TWx 19—L-6384A
Rocky Mount Outside Twsp., Nash County, NC
2201 Nash Street NW * Wilson, North Carolina 27896 * [phone] Sheet No. CP-2

N I
l `I� 32
31
�33 RIVER BEND LANDING
--
J
CLEARED
TOP SOIL STOCK PILE
III / \
II L 153 4
III \ AP►'ROXIMA TE l g
LOCATIO �
F wEnA
153 -�
1 _
/
III z �17
�,
II III 11 \ �
r\ III III II \
(B > j
PB 36 P 153-154
N /F
WILLIAMS BUILDERS OF
ROCKY MOUNT, LLC
DB 2933 P 615
PARID: 107169
PROPOSED 50'-60' R/W
10'
10'
DRAINAGE
DRAINAGE
& UTILITY
(EASEMENT
& UTILITY
EASEMENTI
1 4 PER FT 1 PER FT
2" BITUMINOUS PAVING
8" STONE BASE COURSE
TYPICAL
RESIDENTIAL R/W
NO SCALE
6'
6'
20' PAVEMENT
6'
6'
DITCH
SHOULDER
SHOULDER
DITCH
_ — 161
29)
i
1 �
/ 159
--Laf 6 /
— 20353 SF /
N —
1.1I1 1 A %..L vI I %..n
---
N55 — _ — — — — — —
�i Lot — ---
/ / —152- — — — —
�n '281.82 SF
r , / 59X5' SCA R HC4LE'/—
/ / INW (IN� 14?,-ad (129' H_DPE
/
3 � /
WOODED
50
/
PB 36 P 153-154
/
N /F
1) Ground Stabilization*
WILLIAMS BUILDERS OF
ROCKY MOUNT, LLC
/
DB 2933 P 615
PARID: 107164
Site Area
Stabilization
Stabilization Time
Description
Time Frame
Frame Exceptions
Perimeter dikes,
swales, ditches
7 days
None
and slopes
High Quality
Water (HQW)
7 days
None
Zone
If slopes are 10' or
Slopes steeper
7 days
less in length and are
than 3:1
not steeper than 2:1,
14 days are allowed
Slopes 3:1 or
14 days
7—days for slopes
greater than 50'
flatter
in length
All other areas
None
(except for
with slopes flatter
14 days
perimeters and
than 4:1
HQW Zones)
* "Extensions of time may be approved by the permitting authority
based on weather or other site —specific conditions that make
compliance impracticable." (Section II.B(2)(b))
PLAT NOTE:
ALL INDIVIDUAL LOTS WITHIN THIS
SUBDIVISION ARE REQUIRED TO HAVE
AN APPROVED SEDIMENTAION &
EROSION CONTROL PLAN PRIOR TO
LAND DISTURBANCE ACTIVITY
EROSION CONTROL SYMBOLS
PROPOSED SEDIMENT BASIN
PROPOSED ARC FILTER
PROPOSED INLET PROTECTOR
PROPOSED TOPSOIL STOCK PILE
PRELIMINARY SITE DATA:
TOTAL AREA
7.21
ACRES
RIVIERA DR
DISTURBED
AREA . . . .
. . ACRES
PROPOSED
SUBDIVISION
AREA
7.21 AC - TOTAL
I
NA RIVER
0.89
- RIPARIAN BUFFER
Z LAKE
R1RR0
0.69
- R/W AREA
gENO
SITE
EDGEWgTER RD
p
5.63
- TOTAL BUILDABLE AREA
0
In
LINEAR FEET IN STREET
. . . 538
LF
W
0�
PROPOSED
R/W AREA .
. . . 0.69
ACRES (0.33 AC IMPERVIOUS)
L
NC HWY g7
PARCEL ID
NUMBER . .
. . . 371600743014
PROPERTY
REFERENCE .
. . . DEED
BOOK 2933 PAGE 615
AGENT:
RON SUTTON, PE PLS
HERRING-SUTTON & ASSOCIATES, PA
2201 NASH STREET NW
WILSON, NC 27896
TELE: 252-291-8887
PROPOSED TEMPORARY STONE CONSTRUCTION ENTRANCE
Cal
PROPOSED
ENERGY DISSIPATION PAD (EDP)
PROPOSED
TEMPORARY NORTH AMERICAN GREEN S-150 LINER
PROPOSED
SILT FENCE
- -
PROPOSED
LIMITS OF DISTURBANCE
—
PROPOSED
SILT LOG
PROPOSED
TEMPORARY DIVERSION SWALE
RSD
PROPOSED
ROADSIDE DITCH
FES
PROPOSED
FLARED END SECTION
TAR-PAM SUMMARY:
DRAINAGE AREA PRE & POST = 7.21 AC
TOTAL NITROGEN LOADING POST DEVELOPMENT = 3.71 LB/AC/YR
TOTAL PHOSPHORUS LOADING POST DEVELOPMENT = 0.55 LB/AC/YR
PRE -DEVELOPMENT Qp10 = 20.79 CFS
POST -DEVELOPMENT Qp10 = 20.31 CFS
INCREASE PEAK FLOW 10 YR = (2.3%)
OWNER / DEVELOPER:
DAVID WILLIAMS
WILLIAMS BUILDERS
OF ROCKY MOUNT, LLC
8820 THOMAS ROCK RD
ROCKY MOUNT, INC 27803-9000
TELE: 252-205-0860
Vicinity Map
Not to Scale
SEDIMENTATION -EROSION CONTROL
CONSTRUCTION SEQUENCE
OBTAIN COPY OF APPROVED SEDIMENTATION EROSION CONTROL PLAN AND CALL NCDEQ:
ENERGY, MINERAL, AND LAND RESOURCES REGIONAL OFFICE AT 919-791-4200 PRIOR TO
COMMENCING LAND DISTURBING ACTIVITIES.
PER NPDES REQUIREMENTS, A RAIN GAUGE, SELF —INSPECTION RECORDS, PERMIT, AND S&E
PLAN ARE REQUIRED TO BE MAINTAINED ON SITE AND ACCESSIBLE DURING INSPECTIO. IT IS
RECOMMENDED THA THESE ITEMS BE PLACED IN A PERMITS BOX AT THE BEGINNIGN OR
ENTRANCE OF PROJECT.
EROSION AND SEDIMENT CONTROL (E&SC) PERMIT AND A CERTIFICATE OF COVERAGE (COC)
MUST BE OBTAINED BEFORE ANY LAND DISTURBING ACTIVITIES OCCUR.
IINSTALL TEMPORARY CONSTRUCTION ENTRANCE AND CONCRETE WASHOUT AS SHOWN.
INSTALL SILT LOGS AND SILT FENCE AS SHOWN.
BEGIN CONSTRUCTION OF PROJECT.
INSTALL THE STORM DRAINAGE SYSTEM AS SHOWN; UTILIZE PLYWOOD AND STONE FILTER
PROTECTION AND INLET PROTECTION FOR DROP INLETS AND PIPES UNDER CONSTRUCTION.
UPON DISTURBING AN AREA, CONTRACTOR SHOULD GRADE DISTURBED AREA TO DRAIN IN
APPROPRIATE CONVEYANCE.
UPON ROUGH GRADING SHOULDERS FOR INSTALLATION OF ELECTRIC, GAS, TELEPHONE, AND
CABLE TV, CONTRACTOR SHALL SEED ALL DISTURBED AREAS WITH TEMPORARY SEEDING.
MAINTAIN ALL SEDIMENTATION AND EROSION CONTROL MEASURES THROUGHOUT
CONSTRUC11ON IN ACCORDANCE WITH THE STANDARDS AND SPECIFICA110N.
ALL DISTURBED AREAS TO BE SEEDED — SEE BELOW FOR TIME FRAMES.
PERMANENT GROUNDCOVER SHALL BE ESTABLISHED IN 15 WORKING DAYS OR 90 CALENDAR
DAYS, WHICHEVER IS SHORTER. HOWEVER, NPDES GROUNDCOVER REQUIREMENTS TAKE
PRECEDENCE.
PERMANENT SEEDING TO COMMENCE AND USE SEEDING AND MULCHING FOR PERMANENT
SEDIMENTA11ON AND EROSION CONTROL MEASURES ON ALL DISTURBED AREAS THAT ARE
PERVIOUS.
AFTER SITE IS PERMANENTLY STABILIZED REMOVE ALL TEMPORARY MEASURES.
WHEN THE PROJECT IS COMPLETE, THE PERMITEE SHALL CONTACT DEMLR TO CLOSE OUT
THE E7SC PLAN. AFTER DEMLR INFORMAS THE PERMITTEE OF TH EPROJECT CLOSE OUT, VIA
INSPEC11ON REPPORT, THE PERMITTEE SHALL VISIT DEQ.NC.GOV/NCGO1 TO SUBMIT AN
ELECTRONIC NOTICE OF TERMINATION (E—NOT). A $100 ANNUAL GENERAL PERMIT FEE WILL
BE CHRGED UN11L THE E—NOT HAS BEEN FILLED.
ILo]11*5
THE 50 FOOT TAR—PAM REPARIAN BUFFER ZONE IS MEASURED FROM STREAM WATER EDGE.
NO ACTIVITY IS PERMITTED ON ZONE 1 (1st 30'). LIMITED ACTIVITY IS ALLOWED IN ZONE 2
(20'). OWNER/DEVELOPER TO CONSULT G.S. 15A NCAC 2B.0259 BEFORE DISTURBANCE
WITHIN THE BUFFER ZONE OR CALL NCDENR, DIVISION OF WATER QUALITY, SURFACE WATER
PROTECTION SECTION FOR OFFICIAL DETERMINATION.
THIS PROPERTY IS NOT LOCATED WITHIN A FEMA DESIGNATED FLOOD HAZARD AREA
ACCORDING TO MAP NUMBER 3720382000K DATED JUNE 18, 2013.
THIS PROPERTY IS LOCATED WITHIN A WPO—IV—CA NASH COUNTY PROTECTED WATERSHED
AREA.
WETLANDS DELINEATION IS SHOWN OF SKETCH PLAN AS DETERMINED BY WALTER COLE, LSS.
DITCHES AND STREAMS ON SUBJECT PROPERTY MAY BE SUBJECT TO TAR—PAM BASIN
REGULATIONS AND ARE AS SHOWN.
ALL LOTS WILL BE SERVED BY ON —SITE SEPTIC SYSTEMS APPROVED BY NASH COUNTY
ENVIRONMENTAL HEALTH AND WATER BY NASH COUNTY WATER DEPARTMENT.
40' 0' 40' 80' 120'
"""'' Revision Date B Date: November 2019
:.� •.: Herringy—Sutton & Associates, P.A. Sedimentation Scale: 1" 40' Map No.
River Stone Subdivision
= - - - & Erosion Drawn by: RTM/TWH 19-L-6384A
.< Engineers Surveyors Planners / Firm License #C 2310 RockyMount Outside Twsp.,Nash Count NC
'G I N2201 Nash Street NW * Wilson, North Carolina 27896 * 252 291-8887 Control Plan
' ( ) Sheet No. SE-1

RESIDENTIAL R/W
NO SCALE
PROPOSED 50'-60' R/W
10'
10'
DRAINAGE
6' 6' 20' PAVEMENT 6'
6'
DRAINAGE
& UTILITY
SHOULDER SHOULDER
DITCH
& UTILITY
DITCH
.�-aop BRASS FITTING
2" BRASS LICE-.
DISTRISERVICE SADDLES
BUTION
WATER
2" GATE VALVE
- CORPORATION STOP
OR WATER
MAJN
VALVE evx
11S T AL L AT IQTI
a•• MIN.
PAVEMENT
VALVE pax THREADED COUPLING
TAMPED A $AClCF iLL CONCRETE BLOCKING
_-,MIN. 113 O-Y AT
\-2" THREADED 13RA55
PIPE IDI2" IN LENGTH)
i. a Low -OFF ASSEMBLY r<C)R 21: MAINS ARC TO
Br» CONSTRUCTED AS A CONTINUATION OF
THE. MAIN WITHOUT THE SERVICE SADDLE AND
WSTHaLkT THE CDRPC1RATi0~N STOP
2- CORPORATION STOP SHAi.!_ BE i.pCATED
IN TCI" OF WATER M01,
Standard 2" Blow -off Assembly
^c RINGS VF
BAR AS SHC
Z RINGS Or +3 REIMF
BAR AS SHOWN
FiNlSH EE3
GRADE
SEQTION.-A
f[k.L
VALVE
6ax
AND
IF
VALVE pax
AS
PLAN
Valve Box Installation
f,AIN#Mt,1Jui 300D psi
CONCRETE PAD
POURED SO THAT NO FITTINGS OR
FL"ES ARE COVERED, THIS WILL
APPLY TO ALL VALVES AT ALL
LOCATIONS -
Typical
NOTED NEW PIPE LINE
STATE RClAi3 - --fl
14 LF M!N_ Jl ULVERT
SILT FEfuOE
REO'
Q
14
LF MIN -
SILT FENCE
REQ'E}
AS NOTED--, ,
GRADE NEW PIPE LW
AS DOTED *112'
WN CULVERT
PR4F'ILE
CONDITION f *18" MIN FOR CROSSING
PIPE ILIUL AVER CULVERT OF SANTAR`r SEWER
W PIPE LINE
li
STATE ROAD - ! -----
� CLwLVERT
PLAN
61
L
GRADE
f-CU
VERT
AS NOTED *12'.'SOP Of
IIIAN NEW PIPE !_ram
PRE
CONDITION
2
I N� R
V R T
ass" MIN FOR CROSSINGPik
DF SANlTARY SEWER
10 TONS C L A55 &
R1P RAP FtEi?'t]
10'MN. FROM WINGWALL
7
14 LF MIN.SILT FENCE tEAtYH
SIDE)
CI�LVERT
A5 NOTED
PERPENt71CliLAR TO RfPf 4 T{}q OF BANK
RADE CONC. E�iCASEruiENT
SEE DE" ¢1l
NE W PPE L►t�
STA E ROAD �T --
�_.
r�E w PEE LIME
�--�-----CL1LVERT
AS NESTED
5,RNLI=SS 4T HEIRwasE
PIL
CONDITION
3 4.o'Wt",
P� OF1LE Nt?TEI) DjN PI.MfS
AROUND END 2F VtV RJ
Installation of Pipeline at Culvert Detail
RE'5
I,LrANr T11RU5r AT FIrnNr; AT I50 P51 WATER PRE55l1RE
TOTAL POUNDS
NOM.
PIPE
DIA.
DEAD
END
90'
BEND
45'
BEND
22-1/2'
BEND
11-1/4'
BEND
4"
2,700
3.800
2,100
1,100
530
6"
5,600
8,000
4,300
2,200
1,100
8"
9,700
13,600
7,400
3,800
1,900
10"
14,500
20,500
11,100
5,700
2,900
12"
20,500
29,000
15,700
8,000
4,000
14"
27,600
39,000
21,100
11,000
5,400
16"
35,700
50,400
27,300
14,000
7,000
18"
44,800
63,400
34,400
17,500
8,800
20"
55,000
77,000
42,100
21,500
10,800
24"
78,500
110,000
60,000
31,600
15,400
30"
120,600
170,600
92,300
47,100
23,600
36"
172,800
244,400
132,300
67,500
33,900
42"
233,300
330,000
178,600
91,000
45,700
48"
304,000
430,000
232,700
118,600
59,600
54"
384,100
543,200
294,000
149,000
75,300
rYPF-s aF mRusr t3L06KiNC7
BEARING LOAD
SOIL
(LB./SQ. FT.)
1. THRU LINE CONNECTION, TEE
MUCK
0
2. THRU LINE CONNECTION, TEE
SOFT CLAY
1,000
POLYWRAP SHALL BE USED TO COVER FITTINGS AND BOLTS.
CROSS USED AS TEE
3. DIRECTION CHARGE, ELBOW
SILT
1,500
4. CHANGE LINE SIZE, REDUCER
SANDY SILT
3,000
TO DETERMINE THE SIZE OF A CONCRETE THRUST BLOCK, DIVIDE THE TOTAL
5. DIRECTION CHANGE, TEE USED
SAND
4,000
FORCE BY THE BEARING VALUES OF THE SOIL. THE QUOTIENT WILL BE THE
AS ELBOW
SANDY CLAY
6,000
SIZE OF THE BEARING AREA OF THE THRUST BLOCK IN SQUARE FEET.
6. DIRECTION CHANGE, CROSS USED
HARD CLAY
9,000
APPROXIMATE VALUES FOR VARIOUS TYPES OF SOIL ARE LISTED IN TABLE.
AS ELBOW
7. DIRECTION CHANGE
NO RESPONSIBILITY CAN BE ASSUMED FOR THE ACCURACY OF THE DATA IN
THIS TABLE DUE TO THE WIDE VARIATION OF BEARING LOAD CAPABILITIES
FOR EACH SOIL TYPE.
fl'tSSEIrL W x 1
�a"xY4" METER
i
WAFER METER DE3USILE
ti 0/1 "it i3��" CHECKr- �iING METER 'V AL VE
To wATERMAIN
CORPORATION STOP
A5 SPECIFIED
r
f
ATER
SERVICE SASE
Water Service Installation Detail
Trust Block Detail
FINISHED GRADE
PLACE A
METALLIC
_Li j
WARNING TAPE
12"-18" ABOVE
�
TOP OF PIPE
a
m
TRENCH MAY WIDEN
FROM THIS POINT
UP TO MEET
CONSTRUCTION
REQUIREMENTS
12"
12"
MIN
MIN
~ ¢
#12 AWG BLUE INSULATED
w �
SOLID OR STRANDED COPPER
Q o Q �
PIPE
LOCATER WIRE ON TOP OF
o z � �
GRADE
-�
ALL NON-FERROUS PIPE.
ATTACH WIRE TO PIPE WITH
U c~n J z
ZIP TIES AT 5' INTERVALS
X W
W V1
* 4" MIN LOOSE SOIL
*
LOOSE SOIL IS DEFINED AS
NATURAL
EXCAVATED FROM TRENCH,
FREE
OF ROCKS, ORGANIC MATERIAL,
FOREIGN
MATERIAL &FROZEN EARTH
Water Line Trench Detail
,,•`���'CARp��%,Revision Date B Date: November 2019
:Q . �� .. Herring -Sutton &Associates, P.A.
°.��ss'
River Stone Subdivision Construction Scale: NTS Map No.
10180
Engineers Drawn b -Surveyors -Planners Firm License #C-2310 Details y: twh 19-L-6384A
.,.'2201 Nash Street NW *Wilson, North Carolina 27896 * [phone] Rocky Mount Outside Twsp., Nash County, NC
Sheet No. DT-1

al
N W
�'
- _
v FILTER FABRIC.
�,G�(��� '
'
FILTREXX® SOXXTM (16" TYPICAL)
LOWN/PLACED FILTER MEDIA'"
JERGY DISSIPATION PAD a
�►' �' 6' MAX WITH EXTRA STRENGTH
P_
100' MIN., OR LONGER
WORK AREA A EA TP BE PROTECTED
FABRIC. W/O WIRE FENCE.
p��
` 4 (BUT SUFFICIENT TO
-
SIGN PROCEDURES FOR RIPRAP OUTLET STRUCTURES ARE PRESENTED IN
'PENDIX 8.06.
8' MAX, WITH STANDARD STRENGTH
'
�� KEEP SEDIMENT ON SITE)
I
12" MIN
E CRITERIA FOR DESIGN OF RIPRAP OUTLETS ARE:
�V FABRIC WITH WIRE FENCE.
' ,['
Y-4" TRENCH MINIMUM
,PACITY--10 YR. PEAK RUNOFF OR THE DESIGN DISCHARGE OF THE
ITER CONVEYANCE STRUCTURE, WHICHEVER IS GREATER.
ILWATER DEPTH-- DETERMINE THE DEPTH OF TAILWATER IMMEDIATELY
LOW THE PIPE OUTLET BASED ON THE DESIGN DISCHARGE PLUS OTHER SECTION A -A FILTER BLANKET
MITRIBUTING FLOWS. IF THE TAILWATER DEPTH IS LESS THAN HALF THE NOTES,
MdETER OF THE OUTLET PIPE AND THE RECEIVING STREAM IS
�V Vi
SECTION NTs
FFlCIENTLY WIDE TO ACCEPT THE DIVERGENCE OF FLOW, IT IS CLASSED SEE APPROPRIATE SCHEDULE FOR DIMENSIONS
SEE NOTE 3
A MINIMUM TAILWATER CONDITION. IF THE TAILWATER DEPTH IS GREATER 1. LA IS THE LENGTH OF THE RIPRAP APRON.
AN HALF THE PIPE DIAMETER, IT IS CLASSED AS A MAXIMUM TAILWATER
`V `L
Jr y Ae y 4, y'v WIRE IS REQUIRED FOR
ALLOW SUFFICIENT RADIUS TO
INDITiON. PIPES THAT OUTLET ONTO BROAD FLAT AREAS WITH NO DEFINED 2. 0 - 1.5 TIMES THE MAXIMUM STONE DIAMETER BUT
IANNEL MAY BE ASSUMED TO HAVE A MINIMUM TAILWATER CONDITION NOT LESS THAN B•
STANDARD STRENGTH
FENCING- SEE NOTE 5.
SEE NOTE 2
ENSURE TRUCK WHEELS STAY
/
ILESS SITE CONDITIONS INDICATE OTHERWISE. s. IN WELL-DEFINED EXTEND THE APRON UP THE
!• CHANNEL BANKS TO AN ELEVATION OF ABOVE THE
ON THE STONE .
2" X 2" X 36" WOODEN STAKES PLACED 10' O.C.
'RON SIZE-- THE APRON LENGTH AND WIDTH CAN BE DETERMINED MAXIMUM TAILWATER DEPTH OR TO THE TOP OF THE
:CARDING TO THE TAILWATER CONDITION. IF THE WATER CONVEYANCE BANK wHlDIl EVER IS LESS
PLACE FABRIC UNDER STONE 25' OR WIDTH OF PROPOSED
STREET, WHICHEVER IS GREATER
RUCTURE DISCHARGES DIRECTLY INTO A WELL-DEFINED CHANNEL, EXTEND 4, A FILTER BLANKET OR FILTER FABRIC SHOULD BE
E APRON ACROSS THE CHANNEL BOTTOM AND UP THE CHANNEL BANKS INSTALLED BETWEEN THE RIPRAP AND SOIL
W W
AN ELEVATION OF 0.5 FT. ABOVE THE MAXIMUM TAILWATER DEPTH OR FOUNDATION.
w..�
®
THE TOP OF THE BANK, WHICHEVER IS LESS (FIGURE 6.41C). PIPE CULVERT OUTLET PROTECTION FOR DEFINED CHANNEL
H/ `I'
4- y y -4-ANON 14- I SELF -FASTENING STEEL
I
EXISTING ROADWAY 35' MIN, 15' MIN. ?
AREA TO BE
ICKNESS-- MAKE THE MINIMUM THICKNESS OF RIPRAP 1.5 TiMES THE
1XIMUM STONE DIAMETER.
14, v, NV �v POSTS OR EQUIVALENT. DRIVE
14/ %P 41 \V 40 y 14/ 40 POSTS 24 INTO GROUND.
6" MIN.
PROTECTED
ONE QUALITY-- SELECT STONE FOR RIPRAP FROM FIELD STONE OR
IARRY STONE. THE STONE SHOULD BE HARD, ANGULAR, AND HIGHLY PIPE DIA.
v, SEE NOTE 2.
2% SLOPE (SEE NOTE 2)
®
:ATHER-RESISTANT. THE SPECIFIC GRAVITY OF THE INDIVIDUAL STONES �ARigglE
OULD BE 2.5.
SOXXT" FILTREXX® (16" TYPICAL)
AT LEAST o
.TER --INSTALL A FILTER TO PREVENT SOIL MOVEMENT THROUGH THEIENIN
V� Vr V� �Y �V Vr Vi �Y
pal�Z
2"-3" STONE TO BE USED
WATER FLOW
AVEL L IN THE RIPRAP. THE FILTER SHOULD CONSIST OF A GRADED
:AVEL LAYER OR A SYNTHETIC FILTER CLOTH. DESIGN FILTER BLANKETS RIPRAP
SECTION A -A (SURGE PILE STONE OR
!
THE METHOD DESCRIBED IN PRACTICE 8.15, RIPRAP.
1-III-III-III-I I I -II - -_
=
RAILROAD BALLAST
°O RECOMMENDED)
INSTRUCTION sPECIFIcnnoNs
_
I� -III-I 11=III-III-I 1= -� I -I
-I �-III-III-III-III-III III-i El I I SLGRE`
IF CANNOT MAINTAIN
CONSTRUCTION ENTRANCE
''..
WORK AREA
®
ENSURE THAT THE SUBGRADE FOR THE FILTER AND RIPRAP FOLLOWS THE TYPICAL CONC.
FLARED QUIRED LINES AND GRADES SHOWN IN THE PLAN. COMPACT ANY FILL SEEND
o0 -I I
y I-
CONSTRUCTION SPECIFICATIONS' REQUIRED- WASH STONE WILL BE
NOTES:
OF THE SURROUNING
0 SITURBED MATERIALIN THE . LOW AREAS NADE TO THEE NSITY THE SUBGRADE ON UNDISTURBED ISOMETRIC VIEW
90' TYPICAL
1. Clear the entrance/exit area of all vegetation, roots, and other objectionable
1. ALL MATERIAL TO MEET FILTREXX® SPECIFICATIONS
2. FILTER MEDIATM FILL TO MEET APPLICATION
tL MAY ALSO BE FILLED BY INCREASING THE RIPRAP THICKNESS.
110' MAX.
material.
REQUIREMENTS.
THE RIPRAP AND GRAVEL FILTER MUST CONFORM TO THE SPECIFIED
:ADING LIMITS SHOWN ON THE PLANS.
4"
2. Grade the foundation that the will have3.
rae road ounon so e entrance/ ��� exave a cross slope.
COMPOST MATERIAL TO BE DISPERSED ON SITE, AS
PLAN NTS
A A
MIN. ICI _
j - I-
3. Stone size - Use MSHA size No. 2 (2 1/2" to 1 ) or AASHTO designation M43,
DETERMINED BY ENGINEER.
FILTER CLOTH, WHEN USED, MUST MEET DESIGN REQUIREMENTS AND BE L
:OPERLY PROTECTED FROM PUNCHING OR TEARING DURING INSTALLATION.
PAIR ANY DAMAGE BY REMOVING THE RIPRAP AND PLACING ANOTHER
III III= .III �IIII- -III
141I- I
size No. 2 (2 1/2�� to 1 1/2�� ), or No. 4 (Railroad Ballast).
a W
_CE OF FILTER CLOTH OVER THE DAMAGED AREA. ALL CONNECTING JOINTS M a
I
4. Maintain the gravel pad in a condition to prevent mud or sediment from leaving
the site onto the right-of-way. This may require top dressing with
M AJ N1fEt1 CE
OULD OVERLAP A MINIMUM OF 1 FT. IF THE DAMAGE IS EXTENSIVE,
PLACE THE ENTIRE FILTER CLOTH.
- I � DRIVE STEEL POSTS
public periodic
demand
1. The C:onrr$a[or shall maintain the ditch
da =PIPE DIA
RIPRAP MAY BE PLACED BY EQUIPMENT, BUT TAKE CARE TO AVOID L. = APRON LENGTH
-11 �
additional stone as conditions repair and/or cleanout of any measures
W = APRON WIDTH
AAAGING THE FILTER. 3 x PIPE MIN
, ,I'll
MIN. 24 (EXTRA DEPTH
REQUIRED FOR UNSTABLE
REQUIRED
used to trap sediment. Should mud be tracked or washed onto road, it must be
y rolection in A funcri mat cofidition At all times
A PLAIN
d = APRON DEPTH
J
removed immediately.
{ 1
aria t[ shill 15•B leau[irie'_t}� L15S�fei`te
THE MINIMUM THICKNESS OF THE RIPRAP SHOULD BE 1.5 TiMES THE
1XIMUM STONE DIAMETER. I^ La
5. If construction On the site IS such that the mud IS not removed by the V@hICIe
traveling over the stone, then the fires of the vehicle must be washed before
2. IF_
[rhecheck dam lass been dl=iagM, It
SLOPE 0 % FLOW
RIPRAP MAY BE FIELD STONE OR ROUGH QUARRY STONE. IT SHOULD BE
AD, ANGULAR, HIGHLY -WEATHER -RESISTANT AND WELL GRADED.
NOTES:
entering the existing roadway. When necessary, wheels shall be cleaned to
i_
shI Uc repo v4 or replaced Ifloeyo d repair.
CONSTRUCT THE APRON ON ZERO GRADE WITH NO OVERFALL AT THE
1. Toe in backfill into trench and compact the soil firmly to anchor the bottom
remove sediment prior to entrance onto public right-of-way. When washing is
'U• The C+eltitrscter sklltr,t`ma1,ne sredirrset�t1sL the base
D. MAKE THE TOP OF THE RIPRAP AT THE DOWNSTREAM END LEVEL WITH NOTES- d sEcna A -A
E RECEIVING AREA OR SLIGHTLY BELOW IT. FILTER BLANKET
of the silt fence so that the runoff is forced to go through the fence. No
required, it shall be done on an area stabilized with crush stone which drains to
SEE APPROPRIATE SCHEDULE FOR DIMENSIONS
runoff Is to flow under the fence.
an approved sediment trap or sediment basin. All sediment shall be prevented
pp p p
of the upsll�e side O[ tlYC LYICCLi A�li1 WlIIi
ENSURE THAT THE APRON IS PROPERLY ALIGNED WITH THE RECEIVING 1. LA IS THE LENGTH OF THE RIPRAP APRON.
REAM AND PREFERABLY STRAIGHT THROUGHOUT ITS LENGTH. IF A CURVE
2. Posts for sediment fences are to be 1.33 Ib/LF steel with a minimum length
from entering any storm drain, ditch, or watercourse through use of sand bags,
acc um tilation has reaxed 112 of the efYective
TO FIT SITE CONDITIONS, PLACE IT IN THE UPPER SECTION OF I ddIT NOT 1.5 TIME THEN THE 8 MUM STONE DIAMETER
of 5 ft. Make sure that steel posts have projections to facilitate fastening
gravel, boards, or other approved methods.
height of the chuck 6- m, -or as directed by
EEEEDREODN
I A FILTER BLANKET OR FILTER FABRIC SHOULD BE
the fabric. Filter fabric may be attached using wire or plastic zip ties that
y 9 P P
6. Install silt fence or tree protection fence to ensure construction entrance is used.
P
`� i
[1'te Engineer- A# an alternative, ;�ED[[hear LS1fCI7
IMMEDIATELY AFTER CONSTRUCTION, STABILIZE ALL DISTURBED AREAS INSTALLED eETwml THE RIPRAP AND SDIL
ni VEGETATION (PRACTICES 8.10, TEMPORARY SEEDING, AND 6.11, FIXIINDAnON.
have a minimum 50 lb tensile strength.
7. Maintain the gravel pad In a condition to prevent mud or sediment
proEeLilnnniay be installod adjacvrtt and
RMANENT SEEDING). PIPE OUTLET TO FLAT AREA - NO WELL DEFINED CHANNEL
3. Total drainage area flowing to silt fence may not exceed 1/4 acre per 100 Ff.
of fence.
from leaving the construction site. This may require periodic
parallel Eo the LLP.SIOPH}_ sides of the crional to
. MAINTENANCE: INSPECT RIPRAP OUTLET STRUCTURES WEEKLY AND
-TER SIGNIFICANT (1/2 INCH OR GREATER) RAINFALL EVENTS TO
4. Silt fences should not be used at pipe outlets or In areas of concentrated flow
topdressing with 2-inch stone. After each rainfall, inspect any
1�
increase-4edimam ent storcapcivf with soil
:E IF ANY EROSION AROUND OR BELOW THE RIPRAP HAS TAKEN
.ACE, OR IF ANY STONES HAVE BEEN DISLOGED. IMMEDIATELY
Creeks, ditchlines, swales etc.
( )
structure used to trap sediment and clean it out as necessary.
di�tL�t�ait�_ C1C�1�k darn and sediment
WE REPAIRS TO PREVENT FURTHER DAMAGE.
5. Construct the silt fence sediment barrier with either Standard Strength or Extra
Immediately remove all objectionable materials spilled, washed, or
backup in the center of the ditch1channel should
Strength synthetic filter fabrics. If Standard Strength fabric (TerraTex SF 90
tracked onto public roadways.
p y
����� �� tower than they sides.
or equiv.) is used, wire mesh support IS required. If Extra Strength fabric
4. if dams become debris
TYPICAL ENERGY DISSIPATION PAD
(Mirafi 100X or TerraTex SFD or equiv.) is used, NO support is required.
cheat clogged with
6. Standard Strength fabric (TerraTex SF 90 or equlv.) with 8 ft max post
STANDARD CONSTRUCTION
s�sediri rnt, initrethate removal ofdehris
spacing DOES require support by wire mesh fastened securely to the upslope
and sediment shatiLld he conducted to assure
side of the posts. Use wire fence with a minimum 14 gauge and a maximum
mesh spacing of 6 inches. Extend the wire mesh support to the bottom of
ENTRANCE DETAIL
piaperet�il>�e And water flow tl'ir[Lili the
_FLOW _FLOW
the trench. Fasten wire reinforcement, then fabric on the upslope side of the
dite-i or a hAnisel_ Storm runafTovergryw of flit
� � Ak
fence post using wire or plastic zip ties that have a minimum 50 Ib tensile
cheek dam is acceptable -
strength.
strength.
�. CY�xeckellarr�sslial� be mainrain�ri until distLu'bed
e�' '`"'` "` ��' �'�-
7. Extra Strength Filter Fabric (Mirafi 10OX or TerraTex SFD or equiv.) with 6 ft
WIRE FENCE IS REQUIRED SELF -FASTENING
STEEL POSTS OR
alreta amunEd the device his been perrrlane=_nitly�
�' , ���
max. post spacing DOES NOT require wire mesh support. Securely fasten
filter fabric directly to Wire or zip ties that have a minimum 50
HARDWARE CLOTH EQUIVALENT. SEE
stdhilized and eonstruction activity has
+�--
posts. plastic
lb tensile strength.
ON WIRE FENCE NOTE 3
-
�
6, The FilterNledia rrlay be dispersed can site once
FLOW SILT FENCE FABRIC TO OVERLAP
HARDWARE CLOTH BY 12" 1 N
disturbed area l beenerrn entd stabilized,
EL
8. Inspect sediment fences at least once a week and after each rainfall
(SEE ISOMETRIC VIEW) 1
eonstruc[ionE activiEv has ceAse3d, or as deterttlit-Ltd
BURY THE TOP END OF THE TAMP THE TRENCH FULL OF SOIL.
MATTING STRIPS IN A TRENCH SECURE WITH ROW OF STAPLES,
Make any required repairs immediately. Should the fabric of a
STONE FILTER OF 1 INCH ° z
GO �
by the EnotT•rdr_
6 INCHES OR MORE IN DEPTH. 10 INCH SPACING, 4 INCHES DOWN
sediment fence collapse, tear, or become ineffective,
pdecomposeTD
%ITT DIA. NCDOT #57 WASHED o r SIDE VIEW
FROM THE TRENCH.
replace it promptly. Remove sediment deposits as necessary to
P STONE o
�I RENIv _.III=__ ... - ...
TYPICAL SAGETAPLES
provide adequate storage volume for the next rain and to reduce
D�fl Ap HRA
,� '''� '�`
pressure on the fence. Take care to avoid undermining the fence
aY 1��WgR "ARaw DRIVE STEEL POSTS
SEDIMENT L 0 G
during cleanout. Remove all fencing materials and unstable
�"
F ARE, MIN. 24" (EXTRA
C�o NOTE 1 MIN. DEPTH REQUIRED
ALL
sediment deposits and bring the area to grade and stabilize it
i i
u FOR UNSTABLE
�r"�� '�` _�ILL
after the contributing drainage area has been properly stabilized.
g ON iM SOILS)
a� 4.0, dL
TYPICAL SILT FENCING DETAIL
Il r T5
S T
APdM1� I
PROVIDE HIGHSTREHGTH47
- DOUBiE STITCHED JAIL
s
6.52
T
TYPESEAMS
HIGH STRENGTH
a V a
ppp
X TEMPORARY WIRE FENCE AND GRAVEL INLET PROTECTION
$E
35F p�T
31 SI`} 4F DIA
TD eNCR
SEWHINSPOUT
HORDING O@ER
IN PLACE
PRESS ENDS
INCHES INTO THE 501E sty *
DEFINITION A SEDIMENT CONTROL BARRIER FORMED AROUND A STORM DRAIN INLET BY THE USE OF WIRE
V F
D EN f
AROUND STRUCTURES AND
FENCING AND GRAVEL..
C
C�a�Ap � F�
HEAVY MY
STAPLE SECURELY FLOW
PURPOSE TO HELP PREVENT SEDIMENT FROM ENTERING STORM DRAINS BEFORE STABILIZING THE
CONTRIBUTING WATERSHED. THIS PRACTICE ALLOWS EARLY USE OF THE STORM DRAIN SYSTEM.
gYARbWID
1 b
Z Re
` OREa AL FROM 5 WATERPUMP
MP
FRQMPUMP
WHEN USING NETTING IN CHANNELS, ROLL
OUT STRIPS OF NETTING PARALLEL TO THE •�s.
o o
1 ,� �
,, .�
DIRECTION OF FLOW AND OVER THELL
MAINTENANCE INSPECT THE BARRIER AFTER EACH RAIN AND MAKE REPAIRS AS NEEDED.
PROTECTIVE MULCH_
FLOW
OPENING TO AGG0A100ATE UP TO
_
REMOVE SEDIMENT AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR SUBSEQUENT
STONE FILTER OF 1 INCH DIA.
4" DISCHARGE HOSE
A�
RAINS.
NCDOT #57 WASHED STONE
,
SEE SIDE VIEW a
15'
�L'L,
WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN ADEQUATELY STABILIZED, REMOVE ALL
ISOMETRIC VIEW
NOTES:
�. C. OVERLAP
4,
MATERIALS AND ANY UNSTABLE SEDIMENT, AND EITHER SALVAGE OR DISPOSE OF IT PROPERLY.
a*
F�
1. THEDEWATERINGBAGSHALLW3EMADEOFNONdYOVEN
GEOTEXTILE WITH A MIN. SURFACE AREA OF 225 SQUARE FEET PER
BURY UPPER END OF LOWER
■
I STRIP A5 IN A AND B
BRING THE DISTURBED AREA TO PROPER GRADE, THEN SMOOTH AND COMPACT IT.
APPROPRIATELY STABILIZE ALL BARE AREAS AROUND THE INLET.
NOTES:
SUE
2. ALL STRUCTURAL SEAMS SHALL BESEWN WITH ADOUBLE
.
OVERLAP END OF TOP STRIP 18
INCHES AND STAPLE.
1. Toe in backfill into trench and compact
STTTCHUSING ADOUBLE NEEDLE MACHINE WRHHIGH STRENGTH
D. EROSION STOP
STANDARD METAL POSTS
2'-0" IN GROUND
the soil firm) to anchor the bottom of the0
y
X THETHReA EA1A5?XiENGTTiSHALLWITHSTANi71GOLBANUSING ASrM
D-4884TEST METHOD.
FOLD OF MATTING BURIED IN
hardware cloth & overlapping silt fence so that
I. THE GEOTFXTILEFA8RICSHALL BEA1002NON-WOVEN
FABRIC.
SLIT TRENCH AND TAMPED
DOUBLE ROW OF STAPLES_
the runoff Is forced to go through the fence.
5.DISC14ARGEFROHTHE DEWATERINGRAG SHALL BEDIRECTED
GALVANIZED
No runoff Is to flow under the fence or the relief point. SEE NOTE 1
AGGREGA7EUNDERLAYMENT SUCH THAT PRE-0ISTURBANCEHYDROLOGY ISNOTCHANGE3.
NOTES:
HARDWARD WIRE
EXTENDS To
2. Use silt fence outlets only when drainage area does not exceed 1 /4 acre and
IT' THICK NCOOT #57 STONEI
TOP of Box
there is a low area. Use as a repair of silt fence failures.
1. Apply lime, fertilizer and seed before laying the net or mat.
3. Posts for sediment fences are to be 1.33 Ib/LF steel with a minimum length
2. Start laying the net from the top of the channel or slope and unroll It down the
of 5 ft. Make sure that steel posts have projections to facilitate fastening
grade. Allow netting to lay loosely on the soil but without wrinkles - do not
szaQQQ
the fabric. Filter fabric may be attached using wire or plastic zip ties that
MAINTENANCE
stretch. Mat or blanket - type product should provide at least 30% coverage of
NEI OMN„ ° _
have a minimum 50 lb tensile strength.
9
Dirtt�ag Is Full when It no longer can efftclently
the surface where it is applied.
3. To secure the net, bury the upslope and in a slot or french no less than 6
C4 ----� °
�- P ___1 °
4. See detail 351.01 for Slit Fence construction standards.
flrersediment orallowwater to pass
p
inches deep, cover with soil, and tamp firmly as shown. Staple the net every 12
0 - _ ���
�Q --x�
5. Inspect inlets at least weekly and after each significant (1/2 inch or
reasonable rate. Flow rates will vary depending Inspect inlet pipe and bag for damage and blockage.
the the the type,
tYP
inches across the tap end and every 3 foot around the edges and bottom. where
o00o o�
--u!', 0greater)
rainfall event. Clear the mesh wire of any debris or other
on size of ,,
Replace bag when l full of sediment.
of sediment discha rged into the D I rtbag, the type
2 strips of net are Iayed side by side, the adjacent edges should be overlapped
-
objects to provide adequate flow for subsequent rains. Take care not
J p q q
of ground,rock, arothersuhstanteunderthebag
the degree the bag lim-
3 inches and stapl@d together. Each strip of netting should also b@ stapled down
and ofthe slope on which
the center, every 3 foot. Do not stretch the net when applying staples.
-�
to damage or undercut the wire mesh during sediment removal.
Under most dreumstances,the Dirtbagwiil Disehargetoo largefor pump.
aaommodareflow rates ofsooPump is too large.
4. To join two strips, cut a trench and anchor the end to the new net. Overlap the
-
Replace stone as needed.
gallons per
end of the previous roll 18 inches, as shown, and staple every 12 inches just
#57 WASHED STONE
minute. Use of excessive Flaw rates or overfilling Continued use when bag is full.
Dlrtbagwith sediment will cause the tkag to Inlet pipe disconnected from bag.
rupture orwill cause fallure ofthe hose attach-
below the anchor slot.
5. Maintenance: Inspect all mulches periodically, after rainstorms to check for rill
c6oCqO�C°oCD000O �O°�PLACED To A HEIGHT
mentstraps.
erosion, dislocation, or failure. When erosion is observed, apply additional mulch.
� O°
_ of 12"-18" MIN
SILT FENCE 0 UTLE T
If washout occurs, repair the slope grade, reseed, and reinstall mulch. Continue
p P
VE TOP OF BOX
�
inspections until vegetation is firmly established.
TEMPORAR Y WIDE FENCE
RELIEF POINT
SILTBAG
STANDARD CHANNEL STABILIZATION
INLET PR 0 TE C TION
� .,
�'�N\ CARP ��
Revision
Date
B
Date: November 2019
�sso�. -=
Herringr-Sutton & Associates, P.A.
River Stone Subdivision
e entation
Scale: as shown
Map No.
Al X80
Erosion Control
= •
=
_
Engineers
_ _
Surveyors Planners / Firm License #C 2310
e
Drawn by: twh
19-L-6384A
=�� �...
RockyMount
Outside Twsp., Nash County,
NC`",�E
Construction Details
"•••"'�2=
Nash
street lair • l HW33. North Carolina 27M • (2W) 291-SM7
Sheet No. DT-2
A1r iie110",

=11IIIIIIIIIIIIII®�
■01111111111
•
aft
PLAN "BELOW GRADE"
ANCHOR PLASTIC LINER
W/ #57 STONE
10 MIL PLASTIC LININ
SECTION "A"
STIC LINER
NE
NOTES:
e�Ae� 1. ACTUAL LAYOUT TO BE DETERMINED IN FIELD.
2. THE "CONCRETE WASHOUT' SIGN SHALL BE INSTALLED WITHIN
30 FT OF THE TEMPORARY CONCRETE WASHOUT FACILITY
3. PIT CAPACITY IS MINIMUM OF 6 CU FT PER 10 CU YD OF CONCRETE
4. CONTRACTOR TO COORDINATE WITH USACE CONTRACTING OFFICER
FOR PROPER DISPOSAL OF CONCRETE.
Operating and Inspe t-Ing Washout
Facilities
"CONCRETE WASHOUT" SIGN DETAIL
10 MIL PLASTIC LINING OR EQUIVALENT
PLYWOOD 48"X24"
PAINTED WHITE �� CONCRETE
WASHOUT
Concrete washout faciNies should be inspected daily and after
heavy rains to check for teaks, identify any plastic linings and
sidewalls have been damaged by construction activities, and
determine whether they have been filled to over 75 percent
capacitor- When the washout container is filled to over
75 percent of its capacity- the washwater s hou Id be vacu umed
Off or alho�d to evaporate to amid overflows. Then when the
remaining cemanUtious solids have hardened, they should be
removed and recycled. Damages t0 the container should be
repaired promptly- Before heavy rains_ the washout container's
liquid level shouU be lowered or the container should be
covered to avoid an overflow during the rain storm.
CONCRETE WASHO UT
TD — 6.20
TEMP. DIVERSIONS
DEFINITION A TEMPORARY RIDGE OR EXCAVATED CHANNEL OR COMBINATION RIDGE CON-
STRUCTED ACROSS SLOPING LAND ON A PREDETERMINED GRADE.
PURPOSE TO PROTECT WORK AREAS FROM UPSLOPE RUNOFF AND TO DIVERT SEDIMENT -LADEN WATER TO
APPROPRIATE TRAPS OR STABLE OUTLETS.
CONSTRUCTION 1. REMOVE AND PROPERLY DISPOSE OF ALL TREES, BRUSH, STUMPS, AND OTHER ODJECTIONABLE
SPECIFICATIONS MATERIAL.
2. ENSURE THAT THE MINIMUM CONSTRUCTED CROSS SECTION MEETS ALL DESIGN ELEVATION PLUS THE
SPECIFIED SETTLEMENT.
3. PROVIDE SUFFICIENT ROOM AROUND DIVERSIONS TO PERMIT MACHINE REGRADING AND
CLEANOUT.
4. VEGETATE THE RIDGE IMMEDIATELY AFTER CONSTRUCTION, UNLESS IT WILL REMAIN IN
PLACE LESS THAN 30 WORKING DAYS.
INSPECT TEMPORARY DIVERSIONS ONCE A WEEK AND AFTER EVERY RAINFALL. IMMEDIATELY REMOVE
SEDIMENT FROM THE FLOW AREA AND REPAIR THE DIVERSION RIDGE. CAREFULLY CHECK OUTLETS AND
MAKE TIMELY REPAIRS AS NEEDED. WHEN THE AREA PROTECTED IS PERMANETLY STABILIZED, REMOVE
THE RIDGE AND THE CHANNEL TO BLEND WITH THE NATURAL GROUND LEVEL AND APPROPRIATELY
MAINTENANCE STABILIZE IT.
COMPACTED SOIL
2' MIN
TEMPORARY EARTHEN DIVERSION DIKE
TEMPORARY GRAVEL DIVERSION KIDE FOR VEHICLE CROSSING
DESIGN CRITERIA DRAINAGE AREA - 5 ACRES OR LESS.
CAPACITY - PEAK RUNOFF FROM 10-YEAR STORM.
VELOCUTY - SEE TABLE 8.05A, PERMISSIBLE VELOCITIES FOR EROSION PROTECTION, APPENDIX 8.05.
RIDGE DESIGN - SIDE SLOPE: 2:1 OR FLATTER
3:1 OF FLATTER AT POINTS WHERE VEHICLES CROSS
TOP WIDTH: 2 FT MINIMUM
FREEBOARD: 0.3 FT MINIMUM
SETTLEMENT- 10% OF TOTAL FILL HEIGHT MINIMUM
TEMPORARY DIVERSION
-BLACK LETTERS
6" HEIGHT
0.5" LAG SCREWS
WOOD POST
3' X3' X8'
GRASS SWALE WITH
NORTH AMERICAN GREEN
3'-0"
TYPICAL SWALE SECTION
FOR CHANNELS "A"-"C"
TRENCH
UPSTREAM END
END OF STORM DRAIN
UPSTREAM
OF STORM DRAIN
■ ■
+
IIIXA
r9i III
C I
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-lip
EXTERIOR PLYWOOD O.
BOTTOM OF PLYWOOD PLYWOOD
OPTIONBURY
00
- • OF PLYWOOD INLET PROTECTION
FOR STORM DRAIN UNDER CONSTRUCTION.
NOT ■ SCALE REV. 9-1-92
STEEL FENCE POST
II11.11.11.11 OVERFLOW
1' 11�11�11'�
END
STORM, •.
DRAIN �•���
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FABRIC OR 16*
EQUAL
WASHEDWIRE
#57 STONE- ;11 II I III
ACROSS-�
OPTION
ILLUSTRATION OF STONE FILTER INLET PROTECTION
FOR STORM DRAIN UNDER CONSTRUCTION.
PIPE INLET PR 0 TE C TION
Herring—Sutton & Associates, P.A.
Engineers —Surveyors —Planners / Firm License #C-2310
8901 Nash Street NW • 1IiLoz. North Carolina 87908 • (868) R91-8887
5'-6"
-6"
INV 114.90
.11
15" RCP OUTLET PIPE
TO FES #5
INV 114.90
8" THK
15" RCP INLET PIPE
INV 1 1 4.90
SPUTTER BOX W/
MANHOLE RING & COVER
12" HDPE OUTLET PIPE
SCOUR HOLE
(SEE BELOW)
MANHOLE RING & COVER
15" OUTLET PIPE
INV 149.00
SPUTTER BOX & LEVEL SPREADER — PLAN VIEW
NOT TO SCALE
River Stone Subdivision
ELEV
149.00
8" CONCRETE SLAB W/ #4
REBAR @ 8" OC
1 F ELEV 153.00
r6" THK WEIR
ELEV II
149.62 n
8" THK BLOCK
CONCRETE W/ #4
REBAR @ 8" OC
4" ORIFICE
8" THK CONC
SPUTTER BOX — SECTION B
NOT TO SCALE
Splitter Box #4
ASS w/ NORTH AMERICAN
GREEN S150 MATTING
_ASS "B" STONE
1" THK ON FABRIC
�i .rr ff ,off rr�.ir
'-'GRASS w/ NORTH AMERICAN
GREEN S150 MATTING
Performed Scour Hole Detail
Rocky Mount Outside Twsp., Nash County, NC
Sedimentation &
Erosion Control
Construction Details
Date: November 2019
Scale: as shown Map No.
Drawn by: twh 19—L-6384A
Sheet No. DT-3

GROUND STABILIZATION AND MATERIALS HANDLING PRACTICES FOR COMPLIANCE WITH
THE NCG01 CONSTRUCTION GENERAL PERMIT
Implementing the details and specifications on this plan sheet will result in the construction
activity being considered compliant with the Ground Stabilization and Materials Handling
sections of the NCGO1 Construction General Permit Sections E and F respectively). The
( �
permittee shall comply with the Erosion and Sediment Control Ian approved b the
P PY P PP Y
delegated authority having jurisdiction. All details and specifications shown on this sheet
may not apply depending on site conditions and the delegated authority having jurisdiction.
SECTION E: GROUND STABILIZATION
Required Ground Stabilization
Timeframes
Stabilize within this
Site Area Description
many calendar
Timeframe variations
days after ceasing
land disturbance
(a) Perimeter dikes,
swales, ditches, and
7
None
perimeter slopes
(b) High Quality Water
7
None
(HOW) Zones
(c) Slopes steeper than
If slopes are 10' or less in length and are
3:1
7
not steeper than 2:1, 14 days are
allowed
-7 days for slopes greater than 50' in
length and with slopes steeper than 4:1
-7 days for perimeter dikes, swales,
(d) Slopes 3:1 to 4:1
14
ditches, perimeter slopes and HOW
Zones
-10 days for Falls Lake Watershed
-7 days for perimeter dikes, swales,
(e) Areas with slopes
ditches, perimeter slopes and HQW Zones
flatter than 4:1
14
-10 days for Falls Lake Watershed unless
there is zero slope
Note: After the permanent cessation of construction activities, any areas with temporary
ground stabilization shall be converted to permanent ground stabilization as soon as
practicable but in no case longer than 90 calendar days after the last land disturbing
activity. Temporary ground stabilization shall be maintained in a manner to render the
surface stable against accelerated erosion until permanent ground stabilization is achieved.
GROUND STABILIZATION SPECIFICATION
Stabilize the ground sufficiently so that rain will not dislodge the soil. Use one of the
techniques in the table below:
Temporary Stabilization
Permanent Stabilization
• Temporary grass seed covered with straw or
• Permanent grass seed covered with straw or
other mulches and tackifiers
other mulches and tackifiers
• Hydroseeding
• Geotextile fabrics such as permanent soil
• Rolled erosion control products with or
reinforcement matting
without temporary grass seed
• Hydroseeding
• Appropriately applied straw or other mulch
• Shrubs or other permanent plantings covered
• Plastic sheeting
with mulch
• Uniform and evenly distributed ground cover
sufficient to restrain erosion
• Structural methods such as concrete, asphalt or
retaining walls
• Rolled erosion control products with grass seed
POLYACRYLAMIDES (PAMS) AND FLOCCULANTS
1. Select flocculants that are appropriate for the soils being exposed during
construction, selecting from the NC DWR List of Approved PAMS/Flocculants.
2. Apply flocculants at or before the inlets to Erosion and Sediment Control Measures
3. Apply flocculants at the concentrations specified in the NCDWR List of Approved
PAMS/Flocculants and in accordance with the manufacturer's instructions.
4. Provide ponding area for containment of treated Stormwater before discharging
offsite.
5. Store flocculants in leak -proof containers that are kept under storm -resistant cover
or surrounded by secondary containment structures.
,•``���\A CARp
`i%�9
1 TO
11`'F�� 4Ltots
SEEDBED PREPARATION
SEEDING (PERM.)
SEEDBED PREPARATION
PRIOR TO THE SEEDING, THE CONTRACTOR SHALL CUT AND SATISFACTORILY DISPOSE
OF WEEDS AND OTHER UNACCEPTABLE GROWTH ON THE AREAS TO BE SEEDED.
UNEVEN AND ROUGH AREAS, AND OTHER MINOR IRREGULARITIES WHICH CANNOT BE
OBLITERATED BY NORMAL SEEDBED PREPARATION OPERATIONS, SHALL BE SHAPED
AND SMOOTHED AS DIRECTED BY THE ENGINEER TO PROVIDE FOR MORE EFFECTIVE
SEEDING AND FOR EASE OF SUBSEQUENT MOWING OPERATIONS.
THE SOIL SHALL THEN BE SCARIFIED OR OTHERWISE LOOSENED TO A DEPTH OF NOT
LESS THAN 5 INCHES EXCEPT AS OTHERWISE PROVIDED BELOW OR OTHERWISE
DIRECTED BY THE ENGINEER. CLODS SHALL BE BROKEN AND THE TOP 2 TO 3
INCHES OF SOIL SHALL BE WORKED INTO AN ACCEPTABLE SEEDBED BY THE USE OF
SOIL PULVERIZERS, DRAGS, OR HARROWS; OR BY OTHER METHODS APPROVED BY
THE ENGINEER. ALL ROCK AND DEBRIS 2 INCHES OR LARGER SHALL BE REMOVED
ON CUT CUT OR FILL SLOPES WHICH ARE 3:1 OR FLATTER , MEDIANS, SHOULDERS,
AND DITCH SLOPES PRIOR TO THE APPLICATION OF SEED AND FERTILIZER.
SEEDBED PREPARATION WITHIN 2 FEET OF THE EDGE OF ANY PAVEMENT SHALL BE
LIMITED TO A DEPTH OF 2 TO 3 INCHES.
THE PREPARATION OF SEEDBEDS SHALL NOT BE DONE WHEN THE SOIL IS FROZEN,
EXTREMELY WET, OR WHEN THE ENGINEER DETERMINES THAT IT IS IN AN OTHERWISE
UNFAVORABLE WORKING CONDITION.
EQUIPMENT AND VEHICLE MAINTENANCE
1. Maintain vehicles and equipment to prevent discharge of fluids.
2. Provide drip pans under any stored equipment.
3. Identifyleaks and repair as soon as feasible or remove leaking equipment from the
p g
project.
4. Collect all spent fluids, store in separate containers and properly dispose as
hazardous waste (recycle when possible).
5. Remove leaking vehicles and construction equipment from service until the problem
has been corrected.
6. Bring used fuels, lubricants, coolants, hydraulic fluids and other petroleum products
to a recycling or disposal center that handles these materials.
LITTER, BUILDING MATERIAL AND LAND CLEARING WASTE
1. Never bury or burn waste. Place litter and debris in approved waste containers.
2. Provide a sufficient number and size of waste containers (e.g dumpster, trash
receptacle) on site to contain construction and domestic wastes.
3. Locate waste containers at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
4. Locate waste containers on areas that do not receive substantial amounts of runoff
from upland areas and does not drain directly to a storm drain, stream or wetland.
5. Cover waste containers at the end of each workday and before storm events or
provide secondary containment. Repair or replace damaged waste containers.
6. Anchor all lightweight items in waste containers during times of high winds.
7. Empty waste containers as needed to prevent overflow. Clean up immediately if
containers overflow.
8. Dispose waste off -site at an approved disposal facility.
9. On business days, clean up and dispose of waste in designated waste containers.
PAINT AND OTHER LIQUID WASTE
1. Do not dump paint and other liquid waste into storm drains, streams or wetlands.
2. Locate paint washouts at least 50 feet away from storm drain inlets and surface
waters unless no other alternatives are reasonably available.
3. Contain liquid wastes in a controlled area.
4. Containment must be labeled, sized and placed appropriately for the needs of site.
5. Prevent the discharge of soaps, solvents, detergents and other liquid wastes from
construction sites.
PORTABLE TOILETS
1. Install portable toilets on level ground, at least 50 feet away from storm drains,
streams or wetlands unless there is no alternative reasonably available. If 50 foot
offset is not attainable, provide relocation of portable toilet behind silt fence or place
on a gravel pad and surround with sand bags.
2. Provide staking or anchoring of portable toilets during periods of high winds or in high
foot traffic areas.
3. Monitor portable toilets for leaking and properly dispose of any leaked material.
Utilize a licensed sanitary waste hauler to remove leaking portable toilets and replace
with properly operating unit.
EARTHEN STOCKPILE MANAGEMENT
1. Show stockpile locations on plans. Locate earthen -material stockpile areas at least
50 feet away from storm drain inlets, sediment basins, perimeter sediment controls
and surface waters unless it can be shown no other alternatives are reasonably
available.
2. Protect stockpile with silt fence installed along toe of slope with a minimum offset of
five feet from the toe of stockpile.
3. Provide stable stone access point when feasible.
4. Stabilize stockpile within the timeframes provided on this sheet and in accordance
with the approved plan and any additional requirements. Soil stabilization is defined
as vegetative, physical or chemical coverage techniques that will restrain accelerated
erosion on disturbed soils for temporary or permanent control needs.
f.
NORTH CAROLINA
5 Environmental Quality
NCGOI GROUND STABILIZATION AND MATERIALS HANDLING EFFECTIVE: 04/01/19
DNSITE CONCRETE WASHOUT
STRUCTURE WITH LINER
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CONCRETE WASHOUTS
1. Do not discharge concrete or cement slurry from the site.
2. Dispose of, or recycle settled, hardened concrete residue in accordance with local
and state solid waste regulations and at an approved facility.
3. Manage washout from mortar mixers in accordance with the above item and in
addition place the mixer and associated materials on impervious barrier and within
lot perimeter silt fence.
4. Install temporary concrete washouts per local requirements, where applicable. If an
alternate method or product is to be used, contact your approval authority for
review and approval. If local standard details are not available, use one of the two
types of temporary concrete washouts provided on this detail.
5. Do not use concrete washouts for dewatering or storing defective curb or sidewalk
sections. Stormwater accumulated within the washout may not be pumped into or
discharged to the storm drain system or receiving surface waters. Liquid waste must
be pumped out and removed from project.
6. Locate washouts at [east 50 feet from storm drain inlets and surface waters unless it
can be shown that no other alternatives are reasonably available. At a minimum,
install protection of storm drain inlet(s) closest to the washout which could receive
spills or overflow.
7. Locate washouts in an easily accessible area, on level ground and install a stone
entrance pad in front of the washout. Additional controls may be required by the
approving authority.
8. Install at [east one sign directing concrete trucks to the washout within the project
limits. Post signage on the washout itself to identify this location.
9. Remove leavings from the washout when at approximately 75% capacity to limit
overflow events. Replace the tarp, sand bags or other temporary structural
components when no longer functional. When utilizing alternative or proprietary
products, follow manufacturer's instructions.
10. At the completion of the concrete work, remove remaining leavings and dispose of
in an approved disposal facility. Fill pit, if applicable, and stabilize any disturbance
caused by removal of washout.
HERBICIDES, PESTICIDES AND RODENTICIDES
1. Store and apply herbicides, pesticides and rodenticides in accordance with label
restrictions.
2. Store herbicides, pesticides and rodenticides in their original containers with the
label, which lists directions for use, ingredients and first aid steps in case of
accidental poisoning.
3. Do not store herbicides, pesticides and rodenticides in areas where flooding is
possible or where they may spill or leak into wells, stormwater drains, ground water
or surface water. If a spill occurs, clean area immediately.
4. Do not stockpile these materials onsite.
1AZARDOUS AND TOXIC WASTE
1. Create designated hazardous waste collection areas on -site.
2. Place hazardous waste containers under cover or in secondary containment.
3. Do not store hazardous chemicals, drums or bagged materials directly on the ground
Herring-Sutton & Associates, P.A.
Engineers -Surveyors -Planners / Firm License #C-2310
2201 Nash Street IiII •Wilson, North Carolina 27898 • [phone]
SEEDING SCHEDULE
SEEDING (PERMANENT)
SUMMER MARCH 1- AUGUST 31
SEEDING MIXTURE
SPECIES RATE(LB
BERMUDA GRASS (HULLED) 35
CENTIPEDE 10
GERMAN/BROWNTOP MILLET GRAIN 10
SEEDING (TEMPORARY)
SUMMER MARCH 1- AUGUST 31
SEEDING MIXTURE
SPECIES RATE(LB/ACRE)
GERMAN/BROWNTOP MILLET GRAIN 40
WINTER SEPTEMBER 1- FEBRUARY 28
CPFMFC RATE ( LB/ACRE1
BERMUDA GRASS (UNHULLED) 35
TALL FESCUE 50
ANNUAL RYE 10
CDFMFC RATE ( LB/ACRE)
ANNUAL RYE 20
OATS 50
SOIL AMENDMENTS
APPLY LIME AND FERTILIZER ACCORDING TO SOIL TEST PROVIDED TO ENGINEER FOR APPROVAL, OR APPLY 4,000 LB/ACRE GROUND
AGRICULTURAL LIMESTONE AND 500 LB/ACRE 10-10-10 FERTILIZER FOR SUMMER SEEDING. FOR WINTER SEEDING APPLY LIME AND
FERTILIZER ACCORDING TO SOIL TEST PROVIDED TO ENGINEER FOR APPROVAL OR APPLY 2000 LB/ACRE GROUND AGRICULTURAL
LIMESTONE AND 700 LBS/ACRE OF 10-10-10 FERTILIZER
APPLY 4,000 LB/ACRE GRAIN STRAW OR EQUIVALENT COVER OF ANOTHER SUITABLE MULCH. ANCHOR STRAW BY TACKING WITH ASPHALT,
NETTING, OR ROVING OR BY CRIMPING WITH A MULCH ANCHORING TOOL. TACKING RATE TO BE 0.10 GALLONS PER SQUARE YARD. A DISK
WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS A MULCH ANCHORING TOOL. IF CRIMPING IS USE THE ABOVE STRAW APPLICATION
RATE SHALL BE DOUBLED.
MAINTENANCE
IF GROWTH IS LESS THAN FULLY ADEQUATE, REFERTILIZE IN THE SECOND YEAR, ACCORDING TO SOIL TESTS OR TOPDRESS WITH 500
LB/ACRE 10-10-10 FERTILIZER. MOW AS NEEDED WHEN SERICEA IS OMITTED FROM THE MIXTURE. RESEED, FERTILIZE, AND MULCH
DAMAGED AREAS IMMEDIATELY.
CONTRACTOR IS RESPONSIBLE FOR MOWING, RESEEDING, FERTILIZING AND LIMING IF ADEQUATE GROUND COVER IS NOT OBTAINED AT NO
COST TO OWNER.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION A: SELF -INSPECTION
are Self -inspections required during normal business hours in accordance with the table
P q g
below. When adverse weather or site conditions would cause the safety of the inspection
personnel to be in jeopardy, the inspection may be delayed until the next business day on
which it is safe to perform the inspection. In addition, when a storm event of equal to or
greater than 1.0 inch occurs outside of normal business hours, the self -inspection shall be
performed upon the commencement of the next business day. Any time when inspections
were delayed shall be noted in the Inspection Record.
Frequency
Inspect
(during normal
Inspection records must include:
business hours)
(1) Rain gauge
Daily
Daily rainfall amounts.
maintained in
If no daily rain gauge observations are made during weekend or
good working
holiday periods, and no individual -day rainfall information is
order
available, record the cumulative rain measurement for those un-
attended days (anc this will determine if a site inspection is
needed). Days on m,hich no rainfall occurred shall be recorded as
"zero." The permittee may use another rain -monitoring device
approved by the Division.
(2) E&SC
At least once per
1. Identification of the measures inspected,
Measures
7 calendar days
2. Date and time of the inspection,
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Indication of whether the measures were operating
P g
event > 1.0 inch in
properly,
24 hours
5. Description of maintenance needs for the measure,
6. Description, evidence, and date of corrective actions taken.
(3) Stormwater
At least once per
1. Identification of the discharge outfalls inspected,
discharge
7 calendar days
2. Date and time of the inspection,
outfalls (SDCs)
and within 24
3. Name of the person performing the inspection,
hours of a rain
4. Evidence of indicators of Stormwater pollution such as oil
event > 1.0 inch in
sheen, floating or suspended solids or discoloration,
24 hours
5. Indication of visible sediment leaving the site,
6. Description, evidence, and date of corrective actions taken.
(4) Perimeter of
At least once per
If visible sedimentation is found outside site limits, then a record
site
7 calendar days
of the following shall be made:
and within 24
1. Actions taken to clean up or stabilize the sediment that has left
hours of a rain
the site limits,
event > 1.0 inch in
2. Description, evidence, and date of corrective actions taken, and
24 hours
3. An explanation as to the actions taken to control future
releases.
(5) Streams or
At least once per
If the stream or wetland has increased visible sedimentation or a
wetlands onsite
7 calendar days
stream has visible increased turbidity from the construction
or offsite
and within 24
activity, then a record of the following shall be made:
(where
hours of a rain
1. Description, evidence and date of corrective actions taken, and
accessible)
event > 1.0 inch in
2. Records of the required reports to the appropriate Division
24 hours
Regional Office per Part III, Section C, Item (2)(a) of this permit._
(6) Ground
After each phase
1. The phase of grading (installation of perimeter E&SC
stabilization
of grading
measures, clearing and grubbing, installation of storm
measures
drainage facilities, completion of all land -disturbing
activity, construction or redevelopment, permanent
ground cover).
2. Documentation that the required ground stabilization
measures have been provided within the required
timeframe or an assurance that they will be provided as
soon as possible.
NOTE: The rain inspection resets the required 7 calendar day inspection requirement.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION B: RECORDKEEPING
1. E&SC Plan Documentation
The approved E&SC Ian as well as an approved deviation shall be kept on the site. The
PP P Y PP P
approved E&SC plan must be kept up-to-date throughout the coverage under this permit.
The following items pertaining to the E&SC plan shall be kept on site and available for
inspection at all times during normal business hours.
Item to Document
Documentation Requirements
(a) Each E&SC measure has been installed
Initial and date each E&SC measure on a copy
and does not significantly deviate from the
of the approved E&SC plan or complete, date
locations, dimensions and relative elevations
and sign an inspection report that lists each
shown on the approved E&SC plan.
E&SC measure shown on the approved E&SC
plan. This documentation is required upon the
initial installation of the E&SC measures or if
the E&SC measures are modified after initial
installation.
(b) A phase of grading has been completed.
Initial and date a copy of the approved E&SC
plan or complete, date and sign an inspection
report to indicate completion of the
construction phase.
(c) Ground cover is located and installed
Initial and date a copy of the approved E&SC
in accordance with the approved E&SC
plan or complete, date and sign an inspection
plan.
report to indicate compliance with approved
ground cover specifications.
(d) The maintenance and repair
Complete, date and sign an inspection report.
requirements for all E&SC measures
have been performed.
(e) Corrective actions have been taken
Initial and date a copy of the approved E&SC
to E&SC measures.
plan or complete, date and sign an inspection
report to indicate the completion of the
corrective action.
2. Additional Documentation to be Kept on Site
In addition to the E&SC plan documents above, the following items shall be kept on the
site and available for inspectors at all times during normal business hours, unless the
Division provides a site -specific exemption based on unique site conditions that make
this requirement not practical:
(a) This General Permit as well as the Certificate of Coverage, after it is received.
(b) Records of inspections made during the previous twelve months. The permittee shall
record the required observations on the Inspection Record Form provided by the
Division or a similar inspection form that includes all the required elements. Use of
electronically -available records in lieu of the required paper copies will be allowed if
shown to provide equal access and utility as the hard -copy records.
3. Documentation to be Retained for Three Years
All data used to complete the a-NOI and all inspection records shall be maintained for a period
of three years after project completion and made available upon request. [40 CFR 122.41]
PART II, SECTION G, ITEM (4)
DRAW DOWN OF SEDIMENT BASINS FOR MAINTENANCE OR CLOSE OUT
Sediment basins and traps that receive runoff from drainage areas of one acre or more shall use outlet structures that withdraw water from the surface when these devices need to be drawn down
for maintenance or close out unless this is infeasible. The circumstances in which it is not feasible to withdraw water from the surface shall be rare (for example, times with extended cold weather).
Non -surface withdrawals from sediment basins shall be allowed only when all of the following criteria have been met:
(a) The E&SC plan authority has been provided with documentation of the non -surface withdrawal and the specific time periods or conditions in which it will occur. The non -surface withdrawal
shall not commence until the E&SC plan authority has approved these items,
(b) The non -surface withdrawal has been reported as an anticipated bypass in accordance with Part III, Section C, Item (2)(c) and (d) of this permit,
(c) Dewatering discharges are treated with controls to minimize discharges of pollutants from stormwater that is removed from the sediment basin. Examples of appropriate controls include
properly sited, designed and maintained dewatering tanks, weir tanks, and filtration systems,
(d) Vegetated, upland areas of the sites or a properly designed stone pad is used to the extent feasible at the outlet of the dewatering treatment devices described in Item (c) above,
e Velocity dissipation devices such as check dams sediment traps, and ri ra are provided at the discharge points of all dewaterin devices and
() Y P P. riprap p g P g ,
(f) Sediment removed from the dewatering treatment devices described in Item (c) above is disposed of in a manner that does not cause deposition of sediment into waters of the United States.
PART III
SELF -INSPECTION, RECORDKEEPING AND REPORTING
SECTION C: REPORTING
1. Occurrences that Must be Reported
Permittees shall report the following occurrences:
(a) Visible sediment deposition in a stream or wetland.
(b) Oil spills if:
They are 25 gallons or more,
They are less than 25 gallons but cannot be cleaned up within 24 hours,
• They cause sheen on surface waters (regardless of volume), or
They are within 100 feet of surface waters (regardless of volume).
(c) Releases of hazardous substances in excess of reportable quantities under Section 311
of the Clean Water Act (Ref: 40 CFR 110.3 and 40 CFR 117.3) or Section 102 of CERCLA
(Ref: 40 CFR 302.4) or G.S. 143-215.85.
(d) Anticipated bypasses and unanticipated bypasses.
(e) Noncompliance with the conditions of this permit that may endanger health or the
environment.
2. Reporting Timeframes and Other Requirements
After a permittee becomes aware of an occurrence that must be reported, he shall contact
the appropriate Division regional office within the timeframes and in accordance with the
other requirements listed below. Occurrences outside normal business hours may also be
reported to the Department's Environmental Emergency Center personnel at (800)
858-0368.
Occurrence
Reporting Timeframes (After Discovery) and Other Requirements
(a) Visible sediment
• Within 24 hours, an oral or electronic notification.
deposition in a
• Within 7 calendar days, a report that contains a description of the
stream or wetland
sediment and actions taken to address the cause of the deposition.
Division staff may waive the requirement for a written report on a
case -by -case basis.
• If the stream is named on the NC 303(d) list as impaired for sediment -
related causes, the permittee may be required to perform additional
monitoring, inspections or apply more stringent practices if staff
determine that additional requirements are needed to assure compliance
with the federal or state impaired -waters conditions.
(b) Oil spills and
• Within 24 hours, an oral or electronic notification. The notification
release of
shall include information about the date, time, nature, volume and
hazardous
location of the spill or release.
substances per Item
1(b)-(c) above
(c) Anticipated
• A report at least ten days before the date of the bypass, if possible.
bypasses [40 CFR
The report shall include an evaluation of the anticipated quality and
122.41(m)(3)]
effect of the bypass.
(d) Unanticipated
a Within 24 hours, an oral or electronic notification.
bypasses [40 CFR
• Within 7 calendar days, a report that includes an evaluation of the
122.41(1
quality and effect ofthe bypass.
(e) Noncompliance
• Within 24 hours, an oral or electronic notification.
with the conditions
. Within 7 calendar days, a report that contains a description of the
of this permit that
noncompliance, and its causes; the period of noncompliance,
may endanger
including exact dates and times, and if the noncompliance has not
health or the
been corrected, the anticipated time noncompliance is expected to
environment[40
continue; and steps taken or planned to reduce, eliminate, and
CFR 122.41(I)(7)]
prevent reoccurrence of the noncompliance. [40 CFR 122.41(1)(6).
• Division staff may waive the requirement for a written report on a
case -by -case basis.
r ..,
'-`-'-NORTH CAR4LINAt
. 1 Environmental Quality
NCGO1 SELF -INSPECTION, RECORDKEEPING AND REPORTING I EFFECTIVE: 04/01/19I
River Stone Subdivision
Rocky Mount Outside Twsp., Nash County,
Sedimentation &
NC Erosion Control
Construction Details
Date: November 2019
Scale: as shown Map No.
Drawn by: twh 19-L-6384A
Sheet No. DT-4

RIVER STONE SUBDIVISION
SPLITTER BOX DESIGN CALCULATIONS
PROJECT: RIVERSTONE SID
DATE: 2/15/2020
DESIGNED BY: RON SUTTON, PE
COMPUTE Q10
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1.1 AC
Q 0.75" =
0.33 CFS
VERIFY PIPE CAPACITY FROM FES#3 TO SB#4
Q PIPE -
(D/16)sr3 rS(.60' n)
D=
15 IN
S-
6.25
n=
0.013
Q PIPE =
16.197 CFS
Q REVD =
2.44 CFS
PIPE DIA REQ'D
15.00 IN
Q PIPE a Q REQ'D THEREFORE PIPE SIZE OK
VERIFY PIPE CAPACITY FROM 813#4 TO FES#5
Q PIPE _ (D/16)813 (Soso/ n)
D= 15 IN
S= 2.08
n= 0.013
Q PIPE = 9,344 CFS
Q REQ'D = 2.11 CFS Q PIPE > Q REQ'D THEREFORE PIPE SIZE OK
PIPE DIA REQ'D 15.00 IN

SPLITTER BOX DESIGN
h=
(Q/C A-A)z/2g
Q=
0.33 CFS
ORIFICE SIZE=
4 in
A=
0.0872
Cd=
0.6
g=
32.2 ft/sec
h=
0.62 ft
CHECK WEIR DESIGN IN SPLITTER BOX
H=
(Q/CwL)0.67
Q�
2.11 CFS
Cw`
3
L=
3 FT
H=
0.38 FT
COMPUTE WIER LENGTH OF SCOUR HOLE
WEIR LENGTH = 10 LF/0.75 CFS OF FLOW
Q= 0.33 CFS
WEIR LENGTH = 4.4 FT SET WEIR LENGTH AT MINIMUM 10 FT
MINUMUM WEIR LENGTH= 10 FT