EC Approval and Plans.pdf

Iredell County Planning & Development
Erosion Control Section
349 North Center Street
P.O. Box 788
Statesville, NC 28687
Date: August 3`d 2022
LETTER OF APPROVAL WITH MODIFICATIONS
Bart Carroll
DR Horton, Inc.
8025 Arrowridge Blvd
Charlotte, NC 28273
RE: Project Name: Logan Farms Subdivision
Acres Approved with Modifications: 38
Project ID: MVLLE-2023-003
Project Location: 4667772479.000
Submitted By: WK Dickson
Date Received: July 12`' 2022
Plan Type: New
Dear Mr. Carroll:
This office has reviewed the subject erosion and sedimentation control plan. We find the plan to
be acceptable with modifications and herby issue this Letter of Approval with Modifications.
Modifications must be received in this office no later than two weeks prior to the project start
date. Failure to submit modified plans can result in a violation and fine under the Iredell County
Land Development Code. The Modifications required for Approval are listed on the attached
page. The Certificate of Approval issued by Iredell County must be posted at the job site. This
plan approval shall expire three (3) years following the date of this approval as is required by
Title l 5A NCAC 4B.0129 and Appendix H of the Iredell County Land Development Code.
Title l 5A NCAC 4B 0118(a) and Appendix H of the Iredell County Land Development Code
requires that a copy of the approved erosion control plan be on file at the job site. Any
amendments and/or revisions to the approved plan must be reviewed and approved prior to
implementation in order for the site to remain in compliance. Failure to submit plans for approval
may result in administrative actions and/or penalties as indicated in the Iredell County Land
Development Code. Also, this letter gives notice as required by G.S. 113A-61.1(a) and Appendix
H of the Iredell County Land Development Code, of our right of periodic inspection to insure
compliance with the approved plan.
Iredell County's Sedimentation Pollution Control Program is performance -oriented, requiring
protection of existing natural resources and adjoining properties. If, following the

Letter of Approval with Modifications
Logan Farms Subdivision
August 3,d 2022
Page 2 of 3
commencement of this project, it is determined that the erosion and sedimentation control plan is
inadequate to meet the requirements of the Iredell County Land Development Code and the
Sedimentation Pollution Control Act of 1973, (North Carolina General Statute 113A-51 through
66), this office may require revisions to the plan and implementation of the revisions to insure
compliance with the Act and Code.
Acceptance and approval of this plan is conditioned upon your compliance with Federal and
State water quality laws, regulations, and rules. In addition, local city or county ordinances or
rules may also apply to this land -disturbing activity. This approval does not supersede any other
permit or approval. It is the responsibility of the applicant to obtain all other required permits or
approvals.
As of May 1, 2019, all new construction activities are required to complete and submit an
electronic Notice of Intent (NOI) form requesting a Certificate of Coverage (COC) under the
NCG010000 Construction Stormwater General Permit. This form MUST be submitted prior to
the commencement of any land disturbing activity on the above named project. The NOI form
may be accessed at deq.nc.gov/NCGOI . Please direct questions about the NOI form to Annette
Lucas at [e-mail] or Paul Clark at [e-mail]. After you submit a
complete and correct NOI Form, a COC will be emailed to you within three business days. As of
May 1, 2019, a $100 fee will be charged annually. This fee is to be sent to the DEMLR
Stormwater Central Office staff in Raleigh.
Please note that this approval is based in part on the accuracy of the information provided in the
Financial Responsibility Form, which you provided. You are requested to file an amended form
if there is any change in the information included on the form. In addition, it is required that this
office to be notified of the proposed starting date for this project. Failure to notify this office of
the starting date may result in a Notice of Violation and civil penalty. As required in the
approved plan construction sequencing, please schedule a preconstruction conference with our
staff prior to land disturbing activity.
Your cooperation is appreciated.
Sincerely,
Jonathan Williams
Erosion Control Inspector II
Enclosures: Modifications
Fact Sheet on the New NC GO 1 Permit
Permit

Letter of Approval with Modifications
Logan Farms Subdivision
August 3rd 2022
Page 3 of 3
MODIFICATIONS REQUIRED FOR APPROVAL
Project Name: Logan Farms Subdvision
Project ID: MVLLE-2023-003
County: Iredell
Reviewed by: Jonathan Williams
Required changes are designated as "RC" under legal authority from NC
General Statutes Chapter 113A Article 4 and the Iredell County Land
Development Code.
Suggested changes are designated as "SC" for improvement of the plan.
1. Reduce Phase 1 disturbed acreage from 20.24 acres to under 20 acres to meet to meet
State High Quality Water Zone regulation allowing no more than 20 acres to be disturbed
at one time. —RC
2. Add note to the Erosion Control Notes that this site drains to a North Carolina designated
High Quality Water Zone (Back Creek) and that no more than 20 acres may be disturbed
at any time throughout the duration of the project. —RC
3. Delineate on the erosion control plans a limits of disturbance for stream crossing work
that will require 401/404 permits prior to this area being disturbed. Ensure stream
crossing is protected when work is not active. —RC
4. Notate in the Construction Sequence that a copy of 401/404 permits will be presented to
Iredell County Erosion Control prior to stream crossing disturbance. —RC
5. Ensure Phase 3 is adequately protected on the immediate downslopes to keep sediment
from eroding into stabilized Phase 1 & 2 areas. —RC
6. Provide a standard lot development detail for Phase 3. —RC
7. Delineate stockpile locations and protect on the immediate downslope with silt fence.
Stockpiles must be located 50 feet from basins and diversions and accounted for as part
of the 20 acre max disturbance. —RC
8. Adjust Basin 1 skimmer orifice size to 1 inch in order to dewater the required volume
during all phases in as close to 3 days' time possible. —RC
4. Adjust Basin 3 skimmer orifice size to 1.75 inches in Phases I & 2 and 2.25 inches in
Phase 3 in order to dewater the required volume in as close to 3 days' time possible. —RC
10. Adjust Basin 4 skimmer orifice size to 1.25 inches in order to dewater the required
volume in as close to 3 days' time possible. —RC
11. Ensure clean water bypass channels are protected until complete and stabilized. —RC

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LEGEND (EROSION CONTROL)
SYMBOL
°°°°°°°°°° STABILIZED CONSTRUCTION
°o°o°o°o°o ENTRANCE
°°O°°°40r%0j
X HIGH HAZARD SILT FENCE
TEMPORARY SILT FENCE OUTLET
® STONE INLET
\\ I / I I I I / / PROPOSED PROJECT DRAINS TO BACK
® I �I/I1/ \/ \ �\, \, \ \,\, \\I\ \I� \\ \{1\\ y\ \�\\\�\ \ \ �\ \� � \\\ �\\I\\\ \1I \ \1\ \ I\\ \ I\ \\\ \� \\ \ \ l % - // I_I /I\,1�)\) I\I \//� {1 I l \/ I I\ 1!) )\L1 \\ I /\ \ I \ I\ \ \`\\\\\\�/ \ �\\\\\ \\\\II\l\l �\ , 1 , II III I � ♦ 1 7I-\ // �/ �•♦ -` /\ -( ♦/ -/// � /�/\� \ /\//////�n //\! //�///// /��i/ /// // /- / � /�//�\\\\\\ \\`\ \� \\\\- ` \\\ \-\\ \- \ \ �-\I I) If\�((��"l //) l/ r / / I I / lI lI I l III II I II I II II IIII I IIIIII I I1l, I\1� II/ I/III � _/� /I // //I/ / /,� /1 //
CREEK,
REEK WHICH _H_AJ_S/ i BEEN DESIGNATED
\
1`IBI
\Y
NORTH CAROLINA AS A HIGH-QUALITY
��SYMBOL WATER ZONE. NO MORE THAN 20 ACRES
SHALL BE DISTURBED AT ONE TIME.\
PROPOSED STORM DRAINAGE \ ► I I 1 IIIII rC63 / NV
SEDIMENT BASIN BAFFLE \ \ \ 0SEDIMENT BASIN ,�\ —�\�\ \�I \I �\/ /) �% l //I /II/I/I I/ II / I I l \ \ \ 1 I \ 1 I I I I 1 l / / I/ I II �II IIL II ) / _ �� l% /\ /\ ,/,�/ �, ! / /x / �/ \ I r�\ \\ ♦ \ I 1 \ \ \ . � . \ \ \ I SEWER
. 1 II II I\ l //BMP#3 EASEMENT (TYP.)
/ —
\ FEMA500-YR
/ FLOODPLAIN
PROTECTION SEDIMENT BASIN SKIMMER ) / / / / / / /y// // y L / , , l l / / l I \ { 1 ICl/ ////,/1/J» \ \ 1 { I I \ \ I III I I f I I ( { ! I
/ / /�i/, /( / / / / / / /I 11f//i
/ \ FEMA 100-YR // /r // / I ) III / \ �- \—\ \ \
EX. STREAM TOP
/ / -T , % / / / / / / — FLOODPLAIN OF BANK (TYP.)
/�\\�� \\\\ \\ \ \\ \\ \ I )
\ \ \ \ \ \ \ ( I
GRAVEL RIP RAP APRON SPILLWAY , / / / / / / / I / / / , I I ` \ ) )II 11 IIII I I / I I / — \\ \\ \ \ \ \ 1 I
J I I _ _ \ II IIII I I I) I I 1 I / J I / / / _ / / _\\\ \\ 50' UNDISTURBED \ \�\\``
— I Il/I I I ► I / /, / l r/ / _ \ \\\ \ \ \ \ \ I I I 1
/ l� � \ /1 � I IIIII IIII I 1 II �,
/ l I J I I I /(/ / \\ \�\ MEASURED FROM TOP
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// / � — J / I /I I �I �{ \\�\\\
LOD DENUDED LIMITS STD TEMPORARY DIVERSION DITCH / / �/ _ / / / / / / / )� // / / 1 \ / / \II 111\\\ll (((/ p /��J l / / I — III IIII I II I \\\\\\\a \ OF BANK (TYP.)
IY/I\\\�\�\\\��\ \\ \\\\ \ \ \\ \\\\\ \\ 1 1 1 1
\ \ \ \ 1
I��\\\\\\\��
J v lI I \\\�\ ,E\X\�\S�ANITSANITARY
SANITARY SEWER \DRAINAGE AREA W\ SEWER (TYP.) \ \ \
\\\ \ 1\ IIIIII I
I 1
\�\�WAr
\ \�k\//\ l J I/ II
CWD� CLEAN WATER DITCH STABILIZED AREA �v \ 1 I11 '1 11l1l1'11l11 Yl
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20' EASEMENT DEDICATED TO THE / / j / / — — I I vx\\ \ \ \ \
i�� / / �/ l �// /�'/ ( VILLE z-
NOTES: TOWN OF MOORESFOR
1. SEE SHEETS C8.0 - C8.5 , C6.15 - C6.17, AND POTENTIAL FUTURE GREENWAY
/��////
C11.0 - C11.6 FOR EROSION CONTROL NOTES \ \ \ \ I / I I I ( l { ( (
AND DETAILS.
2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE / l / / I I I ) \\ \ I I I I /// / / / / \I 1 \ \ \ \ \ \ l I \\ \ \ \ \ \♦\ \\ \ \ \\ \
DETAILS AND SHEET C8.5 PIPE / STRUCTURE
TABLES. l I I I I 1 \ - ♦ ) I I I I I I I \1 //\ \ \\ \/ 1 I (�/ /i / / / / / / / / \ \/ ` \`` ` s'S'/R ` \\ \\ \ 1.\\\\\ \\\\ \ \
3. EROSION CONTROL PLANS SHALL NOT BE USED
_
FOR FINAL GRADING. SEE SHEETS C4.0 C4.3 / /
��� \ \ \ 1 /� I l / �,l I l .I � ? � \�\IIII / � 1 /1 '/ % II/ /// /
FOR FINAL GRADING PLANS. \ \ \ \ \ / / / / / / { / ) �/ �j \
EX. STREAM TOP I I / // ///� / / / / / / / _ / \ \ \\\ \\ \\\\\\\ \ \\ \\
\ � � � � \ \ � r I / OF BANK TYP. � 1 /\\ — \ � I \ \\ \ \\ \ � \ 11 \
PRIOR TO PAVEMENT AND CURB/GUTTER l - \ \ \ ) ( /� I / I I ( )
\
INSTALLATION ALL INLET PROTECTION SHALL BE �\ \ \ PHASE 1 STOCKPILE
\ AREA (TYP.) AND GRAVEL INLET PROTECTION (ESC-7). \ 1 / V ?
\ ) / I I / / / / / ♦ / /i // /i / / /� \ \ \ \ L94i I I / \\ \\ \
ONCE PAVING OPERATIONS HAVE BEEN DONE, THE
CONTRACTOR SHALL INSTALL SILT BAG INLET \ / ` / I I I ) // /j /� /// //
I I / / // /i / / /7�7
/ ///i /1 /// y / / /i PROTECTION ESC-17 ON ALL CATCH BASINS. / /�// // 1 / / \
I / / / / / / / /, / / / //,,/ / ii \ \\\ \ / \ l ► \\\
PERMANENT SLOPE AND DITCH STABILIZATION NOTES: / / / / • ,� / 100 STREAM BUFFER /\\\\ \\ \\ \
1. ALL PERMANENT SLOPES 3:1 OR STEEPER SHALL / / S$ / / / / / // SETBACK FROM TOP
/ � / / / / � /��/ /, / 'f� / OF BANK (TYP.)
BE STABILIZED USING NORTH AMERICAN GREEN / I / // / / // / c-r�
S150 INSTALLED PER MANUFACTURER'S \
SPECIFICATIONS USING STAPLE PATTERN B (OR l T y40
APPROVED EQUAL). I I I
\2. ALL PERMANENT DITCHES SHALL BE STABILIZED \\ \ \\\\\\
USING NORTH AMERICAN GREEN SC250 \
\\ \ \\\\\\
REINFORCED VEGETATION INSTALLED PER
MANUFACTURERS SPECIFICATIONS USING
STAPLE PATTERN "E" OR APPROVED EQUAL).
I / / O — \ \ l \ 1 / \
PERMANENT SLOPE AND DITCH STABILIZATION NOTES: — � , / / / � � I IIII GgNs / / /, h / ` — -� \ � `\ \\ � `III III ` � I \ � < \ \ \ \ �� I I /
1. ALL PERMANENT SLOPES 3:1 OR STEEPER SHALL — / / / / / / J T / // // / \` \\ \ \\` \ \ \\ >�) \ \ \ l /S \ \ - - - - - - // /// PROJECT BOUNDARY
BE STABILIZED USING NORTH AMERICAN GREEN7711,
S150 INSTALLED PER MANUFACTURER'S
SPECIFICATIONS USING STAPLE PATTERN B (OR
APPROVED EQUAL).
1 _ \\ \ _--_� \ �QI 1 � m2. ALL PERMANENT DITCHES SHALL BE STABILIZED r
USING NORTH AMERICAN GREEN SC250 \
\
\
\
sEWER(TYP.REINFORCED VEGETATION INSTALLED PER
MANUFACTURER'S SPECIFICATIONS USING M
STAPLE PATTERN "E" (OR APPROVED EQUAL). \I 1\
1I
� 1
\
\ \ ( I I� v\� \I�_\ III I I I
CONTRACTOR SHALL MODIFY TEMPORARY _ / / , • ,, / / �%� �,�,\ / - / / //// N� p ^ — 1 \ _ • \� /�\\\ \\ I 1 \� \ \ I ) I IIII I / /
DIVERSION DITCHES THROUGHOUT CONSTRUCTION / / %��/ / / /
/ EX. FORCEMAIN /-� _ _ —�/ -- � / � � \ \ \ \ � � � � I/�� I
TO ENSURE DRAINAGE AREAS FOR EACH BASIN / �/ / / /, I ,,, , , , , / // // / -�- - _ - I V \ \\ \� - \\ \\\ _- \ I I,T' I /
REMAINS THE SAME. CONTRACTOR TO ENSURE NO
EX. SANITARY
STORMWATER IS SENT TO SILT FENCE THAT IS
� — / / / />
SUPPOSE TO GO TO EROSION CONTROL PONDS. _ _ / / / / % / // j / , EASEMENT/
-CONTRACTOR SHALL INSTALL THE SILT FENCE AT
THE LIMITS OF DISTURBANCE WHERE PROPOSED — _ j- / // // /��/// �, / 1 —� I I I — _ _ _ — _ _ _ _ \ I ) ► 1 \
GRADING IS WITHIN FIVE FEET (5) OF THE LIMITS OF = _ _ _ _ _ �I / �� — /,/ _ — _/_ �l I I I ` _ = L-9D
DISTURBANCE. SILT FENCE IS SHOWN OFFSET FROM = — lI� / / / / i/i / PROJECT BOUNDARY TYP. / / // / �j / / / ///�� // , 7 ' \ — / — _ — , / / I I I I I I I I / ` \ `\ Z
THE LIMITS OF DISTURBANCE FOR VISUAL OJ ( ) v // / / / / / EX. 50 DOMINION ENERGY
/ •/ / / ,NATURAL GAS EASEMENT
PURPOSES ONLY. - _ _- - l �l ��♦/�� // / �/ / / (( ( ( / -�` _ _ / l I I ♦ ® ® I \ \ \ \ \ \ \ \
TOTAL DENUDED AREA: ±38 ACRES _ _ / / / // `/ / I I ( ,///� / / / / // / 'I 'I 1 \ \ \ i I ��S / I — / / �� �,I. \ '� J \ \
— — / T I l \ I � / 0 =7 \ \ \ 1
PHASE 1 DENUDED AREA: ±19.92 ACRES — _ � / 0 7/ / ♦ I /�/ / / \ \ \\\I I //! V, , I I I ) I 1 1 /I // / / \ �/ / / 0 ♦ I �1 \ \ \ \ \ \\ \
11/// I( I ► I I 1 11 I I 1 I I // ♦ 11 \ I I \\ �
CONSTRUCTION SCHEDULE:
APPROVALS: FALL 2022 INDIAN PAINT BRUSH
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1213 W MOREHEAD ST
SUITE 300
CHARLOTTE, NC 28208
(t) 704-334-5348
(f) 704-334-0078
WWW.WKDICKSON.COM
NC LICENSE NO.F-0374
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DESIGN BY: TDG
DRAWN BY: TDG
PROJ. DATE: OCT. 2022
DRAWING NUMBER:
C6.0
WKD PROJ. NO.:
20210143.00

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BOTTOM WIDTH: 3' /
— — — — — — �j \ \ \ \ SIDE SLOPE: 3:1 (MAXIMUM) X\\ /
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NOTES:
1. SEE SHEETS C8.0 - C8.5, C6.15 - C6.17, AND C11.0
- C11.6 FOR EROSION CONTROL NOTES AND
DETAILS.
2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE
DETAILS AND SHEET C8.5 PIPE / STRUCTURE
TABLES.
3. EROSION CONTROL PLANS SHALL NOT BE USED
FOR FINAL GRADING. SEE SHEETS C4.0 - C4.3
FOR FINAL GRADING PLANS.
J L - - - - - - - - Lzu' - j LIJ
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/\\\\ LOD�LO--------- \�\ ___ ASS—� -- — —--_SS----- - - - — —
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_
DRAINAGE AREA \\\\ \\\-----
`\\ \ \\\\ \ \ DELINEATION (TYP.) \ \-----------� \ \� I I / —/I/ _ \\\ n \\
\ \ \ \ \ \ \\----
\ PROPOSED TEMP. SKIMMER BASIN #1
J — SKIMMER PIPE:4
PROPERTY ORIFICE DIA.. 1
\ \ \ \ \ \ . BOUNDARY TYP. , \ _ POND BOTTOM: 823.00 ` — —
\ \ \ \ \ \ \ \ (TYP.)
SKIMMER INV.: 825.50 \ / / "� WATTLE (TYP.)
CONTRACTOR SHALL DIVERT WATER AROUND \ \ / I. \
TOP OF PONDS TO ENTER AT LOCATIONS PHASE 1 TEMP. SKIMMER BASIN #1 \ \
WITH SLOPE DRAINS. DITCHES MAY BE / \ \ /� / / DRAINAGE AREA: ± 3.31 AC \ \
REMOVED ONCE SLOPES ARE STABILIZED \ / DENUDED AREA: ± 2.93 AC PHASE 1Cail
\ \ \
- l ��� / / BOTTOM OF BASIN: 823' STOCKPILE AREA \ \ \ \ \ TEMPORARY CLEAN WATER DITCH #1.1
100' STREAM BUFFER \ �\/ / TOP OF DAM: 829' \ \ o 0
� ,I � � — \ \ \ —SLOPE: =5.6 /o (1 /o MINIMUM)
SETBACK FROM TOP - \\ \ BOTTOM WIDTH: 3'
o \ / — — — I — \ \ \' \ \ \ SIDE SLOPE: 3:1 (MAXIMUM)
TEMPORARY DIVERSION DITCH #1.2 � \ OF BANK (TYP.) ` � "� � � � I _ _ �
\ \ \ SLOPE: =1 /o (MINIMUM) / \ \ \ 1 / DEPTH. 1 (MINIMUM)
BOTTOM WIDTH:4' �� —\\�\ \\ \\\�� / / r _ _ — —j/ \ \\ \ \\. LINING: STRAW WITH NET
SIDE SLOPE: 3:1 (MAXIMUM)
\ \ \ \ \ \\ \ \ \ \ DEPTH: 1' (MINIMUM) \ \ \ \ / _ ��--835 = /— xX \ \ \ \ \
LINING: STRAW WITH NET �830 _ -- �� \ \ \ ��
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\ / / / \ TOP INV: 830 BAFFLES (TYP.) TOP INV: 829'
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_ 81 — TEMPORARY SILT FENCE \ — / — — —� \\x\� �/✓
\ \ EX. FORCEMAIN (TYP.) S — — — _ — — NEAR STREAM (TYP.)
CONTRACTOR SHALL INSTALL SLOPE
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\I — — — SS — _ _ — — — — — _ GREATER THAN 10' (TYP.) MATTING SHALL ;x
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EX. SANITARY \ —C�D _ — I — — - CONTAIN PLASTIC NETTING.
\ \ \ SEWER (TYP.) \ — —
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PROPOSED TEMP.
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ICI L L L L I/) / / / / / �) l ( ) // / / / / / / \ /'� \ / - - ** I \ I \ NOTES:
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✓ y,/ / /./ / // / / / / / / / SIDE SLOPE: 3:1 (MAXIMUM) / G / / �� / / / / / `�\ \� - 1. SEE SHEETS C8.0 - C8.5, C6.15 - C6.17, AND C11.0
I / I // DEPTH: 1 (MINIMUM) �/ / / / / /\ \ - - ,�' I I \ I - C11.6 FOR EROSION CONTROL NOTES AND
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NEAR STREAM (TYP.) / \/\ \ / I_ I TABLDETAES ILS AND SHEET C8.5 PIPE /STRUCTURE \
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/ / I I DRAINAGE AREA / / \ / / / / FOR FINAL GRADING PLANS.
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BMP SHARE AN EQUIVALENT BERM. EROSION / / — I \� \ \ \ \ NOTES:
CONTROL BERM SHALL BE CONSTRUCTED 1 I �� — 1. SEE SHEETS - .1 - .17 AND 1Wl<
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PHASE 1 RISER SEDIMENT BASIN #3 FOR FINAL GRADING. SEE SHEETS C4.0 - C4.3
I I I PROPOSED BMP #3 RISER _ I / DRAINAGE AREA: ± 24.89 AC FOR FINAL GRADING PLANS.
I I k � x � —
\ \ 6' X 6' CONCRETE RISER ��� — — J I I I I I / \ DENUDED AREA: ± 7.55 AC _
I RIM: 820.50 I S` — _� I I I / I / BOTTOM OF BASIN: 814.50'
I WQ/DETENTION ORIFICE(S): PLUGGED I I I I /g20 I x // TOP OF DAM: 823\\
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TOP INV: 831 �� ��\ J 1\�
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ORIFICEDIA.: 1.75 r�,
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SLOPE: 1.0 MINIMUM
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BOTTOM WIDTH: 4'
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I DEPTH:3'(MINIMUM) ) / / / l C l / // / /// �i // �— I l \ \\ \ \ \ \ \\ \\\\ \ \ \ \ \
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— — — — — II
DRAINAGE AREA: ±6.07AC
DENUDED AREA: ±2.23AC
BOTTOM OF BASIN: 845.50'
TOP OF DAM: 851
\ \ \\ \ \ \ \ \ / / \ / / / ` l l I I //�/ / /�/ / / / /,, / \ \ III I cM
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SKIMMER PIPE:4"/ 86p I
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ORIFICE DIA.: 1.25" / / / ( ( —8 I I I I / / 1 I W
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SLOPE: =1.7/0 (1 /o MINIMUM)//
B ,/ / / / / / / I ( BOTTOM WIDTH: 1' I I _i /
/ / / / / / SIDE SLOPE: 3:1 (MAXIMUM)
— _ _ — _ �j \ O D / / / / / / I DEPTH: 2 MINIMUM I, I �so �IL LwAY I I / / / _ _ — — J I /' I
--/ � s 8� D / / // / I // LINING: STRAW WITH NET I�I PUB�ICR/ II/ ---� --I
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/ i / ' //'/' — �\ I I I IJ I I I I �.I \ ® I / / //( COMPOST WATTLES
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PHASE 1 RETAINING I �� I I / THE R/W (TYP.)
WALL (TYP.)///
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/ /�//. / ,//� �, / I I / ► I , / /
PROPERTY
BOUNDAR\ \ \ I I I I I \ \ \ I I / /CONSTRUCTION
Y� / ,' Y (TYP.) \ \ \ \\ \ I I
/ � / / � ► I � \ \ \ \ 1 I I I I '� l � \\ o IIII / /
I I I I I/ I II \ I \ JIB ( ENTRANCE (TYP.)
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'
/' , I I I \ NOTES:
/ 1. SEE SHEETS C8.0 - C8.5, C6.15 - C6.17, AND C11.0
C11.6 FOR EROSION CONTROL NOTES AND \
10� _,��' �/ / �\ DETAILS.
2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE
to , , - - _ _ - _ - / / / DETAILS AND SHEET C8.5 PIPE / STRUCTURE \
TABLES.
3. EROSION CONTROL PLANS SHALL NOT BE USED 40 0 40 80
go FOR FINAL GRADING. SEE SHEETS C4.0 - C4.3
go
FOR FINAL GRADING PLANS.
SCALE: 1" = 40'
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SYMBOL
°°°°°°°°°
° STABILIZED CONSTRUCTION
°0°0°0°0°0 ENTRANCE
O°O°O°O°O°
X HIGH HAZARD SILT FENCE
TEMPORARY SILT FENCE OUTLET
® STONE INLET
PROTECTION
GRAVEL RIP RAP APRON
LOD DENUDED LIMITS
DRAINAGE AREA
CWD CLEAN WATER DITCH
\\\�
// / / /{ ! I I \ \\� \ \ \\— ��`;\ \ \\ \\ \\`�\\11II ► I /) �/ , ,—\� \ 11 l / J III I, / / / / /— / _l J \ \\ \ \V
SYMBOL I I/ / / I 1 \ \\ \ \\� \\ \ \\\^\\ \ \\�\\ \\\11 ♦�/ / / / / / /\\ \Vk
PROPOSED STORM DRAINAGErC6
• ♦ �/ / �\ \ / J I I I I / / / ----- / J 1 \ \ \
\ \\ \�
\\ \ \�
® SEDIMENT BASIN BAFFLE
It
v_\ I \ �\\ \ II lI \ 1 I I 1 I / 1 \, \ \ \ 2\\ \\ \ \//I I _ \/ I
SEDIMENT BASIN
I/
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r
EASEMENT (TYP) FEMA
FLOODPLAIN\\)\\ \ \ \ \ I I I I I I I I ( /
�
SEDIMENT BASIN SKIMMER // / / / { 1, �lll�llfi/i/�//7
I lI \ \ FE—\ \ \
\ MA 100-YR FIII LIIlOIlIlII lODII�IPu L/AII( N1/ // ._, OF\\S\\BTAR\\\\NE\ AK\ M (TYP.)
l\ \ \J\l
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SPILLWAY
\ \\\
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50'
UNDISTURBED \ \
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STD TEMPORARY DIVERSION DITCH / �/ / / _ _ / / / / / / / / {/ / / / I \ / / \I 1\1\\\\\I(1 (/ ^p ��I �J l l I I / III I I \ \\\\\�`\ OF BANK (TYP.)
11\\111/ II�� \\\ \ \ \\ \ \ \ 1 I I
/ / / \ 1 \1\ 1\1 \\ I l / / / / I II I I I I I I I — \ \ \\� \�\\\ \�� \ \ \
J / / / 11 I I / / / / / T \ 1 111
\ \ � 1111111\ \
/ J / ,111111;111111 III IIIII , / , \ 111\I\ \ \ \\
SANITARY SEWER / // 7i� EX. SANITARY \ \\\ \ \ \ \
/ / \� \ 11111J I /111 ///IIII I ( l / _ \ \\\\\ , SEWER (TYP.)
,I/ 7/
/\
STABILIZED AREA K\/ \/
20 EASEMENT DEDICATED TO THE / /i�
NOTES: i �� i i / l / / /� TOWN OF MOORESVILLE FOR I / / / — 1 \ I I I \ \\\� \\\`�\ 11 \\ \ \\�� \ \ \ \ \
1. SEE SHEETS C8.0 - C8.5 , C6.15 - C6.17, AND POTENTIAL FUTURE GREENWAY
C11.0 - C11.6 FOR EROSION CONTROL NOTES \ \ I / I I ( ( (
AND DETAILS.
2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE
f / / I I \ \ _ � \ \ I I , I I I I , 11 ^ I / l /// // / / , \ — � \I \ � \ ► I I / ( \ � \�\\, \\ �� � \ \ �\\ \ \ \ \ \
DETAILS AND SHEET C8.5 PIPE / STRUCTURE / / / I I I I \ \ \ \ — \ I ) I I I I I \IIIII \\ \ \ — / / / //�//�// / / / / / �\ \ / \ \ �F< \ \ 1 I I I 1 \ \\\\\\�\ \\ \ \ \\ \ \\\ \ \\ \
TABLES. l I I I I 1 ` \ \ — ♦ I I I \ I I I 1 / /�\ \\ \\ \/ I C �/ /i \/ \< 'yiR I \ I\ \1.\\ \�\ \ \\\\ \ \
3. EROSION CONTROL PLANS SHALL NOT BE USED / / / — \ — �\ / I I \ /� \\\ j f / Ill / / \ \ \ \\ F T / \ \ \ \ \\ \
_ I / 1 I\\\\
FOR FINAL GRADING. SEE SHEETS C4.0 C4.3 \ \ I \ 1� \`�
FOR FINAL GRADING PLANS. \ \ \ \ \ \ / / / / / / EX. STREAM TOP (I / // / / i / // — \ \ \�
PRIOR TO PAVEMENT AND CURB/GUTTER \ \l - \ \ I ( /r� l / / / OF BANK (TYP.) I �F
INSTALLATION, ALL INLET PROTECTION SHALL BE l I I�r C I \\
\ \\ \
\ \
BLOCK AND GRAVEL INLET PROTECTION (ESC-7). \ ♦ / / /i/i // / \\ \ - I I I I �\ \\\\\\\ \ \ \ \\
/ / / / /// / •� I / / / / /i// ��///� - \\\\ \ e I 1 \ \ \ \\\\ \ \\ \
ONCE PAVING OPERATIONS HAVE BEEN DONE, THE
\ � I I ` / / I I I ) /�//
CONTRACTOR SHALL INSTALL SILT BAG INLET \ I /�//
PROTECTION (ESC-17) ON ALL CATCH BASINS.
/ /\\ \\ \ \\\\ \
PERMANENT SLOPE AND DITCH STABILIZATION NOTES: / ` / • ,�/ /, / 100 STREAM BUFFER
1. ALL PERMANENT SLOPES 3:1 OR STEEPER SHALL S$ / / / / / �// , / / / SETBACK FROM TOP
BE STABILIZED USING NORTH AMERICAN GREEN V ���// / //� / OF BANK (TYP.)
S150 INSTALLED PER MANUFACTURER'S
SPECIFICATIONS USING STAPLE PATTERN "B" OR
APPROVED EQUAL). I I I /,l
/�
2. ALL PERMANENT DITCHES SHALL BE STABILIZED
USING NORTH AMERICAN GREEN SC250 T / / / / / 1/ , / \ / , / //� �Q-/ \ \ I I I I I \ \ I I 1 \ \ \ \ \ \ \ / \ I
REINFORCED VEGETATION INSTALLED PER _ _ - / / / / / / co \I
MANUFACTURERS SPECIFICATIONS USING
STAPLE PATTERN E (OR APPROVED EQUAL).�i _ l \ I I I I I 1 \ \ I I ; \ \ \ \
\ \
PERMANENT SLOPE AND DITCH STABILIZATION NOTES: / / / I I� / / / / / // //
1. ALL PERMANENT SLOPES 3:1 OR STEEPER SHALL — / / / / I I T %��' / - \` \ \\` ` ` \\ > \ \ \ I iS \ \ _ _ - - - - // /// PROJECT BOUNDARY (TYP.)
BE STABILIZED USING NORTH AMERICAN GREEN >\
S150 INSTALLED PER MANUFACTURER'S /
SPECIFICATIONS USING STAPLE PATTERN "B" (OR
APPROVED EQUAL).
- - _ // /l I / l �� - / / II ( \ - _ \ \ \\\� \\ \ I I I / { �-_ `\�S 1 I I I III I II\1 l m
2. ALL PERMANENT DITCHES SHALL BE STABILIZED - USING NORTH AMERICAN GREEN SC2504_\
,
EX.
REINFORCED VEGETATION INSTALLED PER — / / / // / / / // / y / / / II \I _ _ = \ Jl) / / 11 \\11 \ I I I I \ \ \ I I I ��—� \ \
_ _ — / / / / / / SEWERER \
(TYP.)
RY YP.) m \ \ \
MANUFACTURER'S SPECIFICATIONS USING --' �` �/ /��i / // l/
STAPLE PATTERN "E" (OR APPROVED EQUAL). /
�` __jI �`J / / < /%/ 1 \ �\// - �=\\\\_/i / / \\\ \ I I I I\ / \ \�\`� \\ � �\\I ✓ �_\ \ \ III I I I
1 \
CONTRACTOR SHALL MODIFY TEMPORARY
DIVERSION DITCHES THROUGHOUT CONSTRUCTION EX. FORCEMAIN (TYP.)
TO ENSURE DRAINAGE AREAS FOR EACH BASIN
/ / /� I1I IIII` / _���_
REMAINS THE SAME. CONTRACTOR TO ENSURE NO / / / / i / / / II.I� I. �.rn
/ /-' / / /
STORMWATER IS SENT TO SILT FENCE THAT IS _ / / / I �T EX. SANITARY SEWER
SUPPOSE TO GO TO EROSION CONTROL PONDS. - - / / /' / - /% EASEMENT (TYP.)
-CONTRACTOR SHALL INSTALL THE SILT FENCE AT
THE LIMITS OF DISTURBANCE WHERE PROPOSED
GRADING IS WITHIN FIVE FEET (5) OF THE LIMITS OF
DISTURBANCE. SILT FENCE IS SHOWN OFFSET FROM - - - _ _ - - / I I I I I I / \ \ ` • Z
THE LIMITS OF DISTURBANCE FOR VISUAL PROJECT BOUNDARY (TYP.) �/ / / /X /i / / / /
// / EX. 50 DOMINION ENERGY — J I I l
-�� j--_—_—~�/ // / / /— / / / / /'((/NATURAL GAS EASEMENT
PURPOSES ONLY. - - / / ///� %� /�/� // i/ /X / ( ( _ // / 0
rI-A /* l I I// �//i/�//// //�// /1� �{ I ��I / / //'//I� / /� / — / I , 1 / ♦
TOTAL DENUDED AREA. _38 ACRES _ _ / / / t 1 ( / / / / I 1 \ \ \ I / / \ J \ \ \ 1 \
PHASE 2 DENUDED AREA: ±19.73 ACRES _ _ _ /��7� /// / 1 / / / I I �11 - ) \ \ I �11 /I V/ / I 1 I 1 \ IIII /I / / -
- I /� // / % I I I ( I ►III I I - / ♦
CONSTRUCTION SCHEDULE:
INDIAN PAINT BRUSH DR.4 ♦
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APPROVALS: FALL 2022 BEGIN CONSTRUCTION: l //�_—_---J— ♦ 1 — \\ \ \\ \ \\ \ II II I /
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COMPLETE CONSTRUCTION: 2023 /17\ / �/ / / / / l / l I I I l I l i l I l I / / // / / / / // / / / / % \ \ \ \ I I I 1 ( / O
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LU ' _
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\ \ \ \ BE USED INSIDE THE R/W \ \ \ \ \
\ \\\\ \\ (TYP.) \ /
\ \\ \ \ \ \ \ \ \ \ PROPERTY
BOUNDARY (TYP.)
\
CONTRACTOR SHALL INSTALL SLOPE
STABILITY MATTING ON ALL SLOPES
\ \ \ \ \ \ A\\ \ \ GREATER THAN 10' (TYP.) MATTING SHALL
BE NORTH AMERICAN GREEN S150 MAT OR
\ \ \ \\ \ \ \ \ \ \ APPROVED EQUAL. MATTING SHALL NOT
CONTAIN PLASTIC NETTING. —
100' STREAM BUFFER \
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NCDOT OFFSITE IMPROVEMENT PLANS
LAD LSD L-GD - T/ — — — —
-
--- — — — — —'SS
850
COMPOST WATTLES TO 7S7
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NEAR DRIVEWAY (TYP.) / / — J -
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_
COMPOST WATTLES TO BE —�
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— DRAINAGE AREA / / / / / / / (TYP.)
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BOTTOM OF BASIN: 832.5'
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NOTES:
1. SEE SHEETS C8.0 - C8.5, C6.15 - C6.17, AND C11.0
- C11.6 FOR EROSION CONTROL NOTES AND
DETAILS.
2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE
DETAILS AND SHEET C8.5 PIPE / STRUCTURE
TABLES.
3. EROSION CONTROL PLANS SHALL NOT BE USED
FOR FINAL GRADING. SEE SHEETS C4.0 - C4.3
FOR FINAL GRADING PLANS.
PROPOSED BMP #1 RISER
6' X 6' CONCRETE RISER
RIM: 836.50
WQ/DETENTION ORIFICE(S): PLUGGED
INV. OUT: 823.30
POND BOTTOM: 832.50
SKIMMER INV.: 834.50
SKIMMER PIPE: 4"
ORIFICE SIZE: 1"
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1213 W MOREHEAD ST
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(t) 704-334-5348
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WK
DICKSON
comminity infrastructure consultants
1213 W MOREHEAD ST
SUITE 300
CHARLOTTE, NC 28208
(t) 704-334-5348
(f) 704-334-0078
WWW.WKDICKSON.COM
NC LICENSE NO.F-0374
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\ � \ 1 � / I / / OF BANK TYP.
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INSTALLATION, ALL INLET PROTECTION SHALL BE \ \ `\/ // / /�� \ ✓ \`�\\\\\��\\��\
BLOCK AND GRAVEL INLET PROTECTION (ESC-7). `\ \ \ \ \ \ I I \ I I I I I I I / 1 J 61 / / // / // \ \ \ - I I \\\ C \\
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\ � I I CONTRACTOR SHALL INSTALL SILT BAG INLET \ /�//�j
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PERMANENT SLOPE AND DITCH STABILIZATION NOT `
ES: 100 STREAM BUFFER
SETBACK FROM
1. ALL PERMANENT SLOPES 3:1 OR STEEPER SHALL /
/ \ / / / / �/ /
BE STABILIZED USING NORTH AMERICAN GREEN / I / � � // i // � / / OF BANK (TYP.)
S150 INSTALLED PER MANUFACTURER'S
,,,, 1 s / �� / / // l 1 \ I
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2. ALL PERMANENT DITCHES SHALL BE STABILIZED - / I / �
USING NORTH AMERICAN GREEN SC250
REINFORCED VEGETATION INSTALLED PER C40
\ II \ \
MANUFACTURER'S SPECIFICATIONS USING // I / v
STAPLE PATTERN E (OR APPROVED EQUAL). / - \ / J I I / // I // -� 1 \ 1 \ \ ( \ \ \ \ \ / / \ ✓//jam \\\� \\\\\ \� \\ �\�
PERMANENT SLOPE AND DITCH STABILIZATION NOTES: - / J I I / / l �// I I OGANS l //=(>i / - I l I ` \ \ \ / `\ \
s PROJECT BOUNDARY (TYP.) \\ \ \
1. ALL PERMANENT SLOPES 3:1 OR STEEPER SHALL — l' / / / //�' / \ ` \ > > \ _ �s� \ - / /
BE STABILIZED USING NORTH AMERICAN GREEN _ �' �' �/� / / / - �/ 'S'i '� \
S150 INSTALLED PER MANUFACTURER'S / / / //
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2. ALL PERMANENT DITCHES SHALL BE STABILIZED - / / / _ �� 1 \ \ \ 1 v \\\ ( r - \ \ �� \ I I I I I 1 I\ / � M \ \ \ \
USINGNORTH AMERICAN GREEN SC250
REINFORCED VEGETATION INSTALLED PER m \ \ \
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(
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DIVERSION DITCHES THROUGHOUT CONSTRUCTION
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-CONTRACTOR SHALL INSTALL THE SILT FENCE ATAA
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/ /i �174
GRADING IS WITHIN FIVE FEET (5') OF THE LIMITS OF = _ _ _ _ _ / j / _ _ - - - - - — — - \ \ \.
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�— _ — — ♦ f= / / PROJECT BOUNDARY (TYP.) �j / ' " // / / / / \— / — _ / I I I I II ( \ Z
THE LIMITS OF DISTURBANCE FOR VISUAL EX. 5o DOMINION ENERGY — _ _ — —
PURPOSES ONLY. _ ----- �l / A51// / / I -� _ /l / I I - - / { I �� \ \ \ \ \ 1 O
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TOTAL DENUDED AREA: _38 ACRES _ _ / / / �► I / / / / I 1 \ \ \ \ \ I I '�S' /
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- C11.6 FOR EROSION CONTROL NOTES AND
DETAILS.
2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE
DETAILS AND SHEET C8.5 PIPE / STRUCTURE
TABLES.
3. EROSION CONTROL PLANS SHALL NOT BE USED
FOR FINAL GRADING. SEE SHEETS C4.0 - C4.3
FOR FINAL GRADING PLANS.
PROPOSED BMP #1 RISER
6' X 6' CONCRETE RISER
RIM: 836.50
WQ/DETENTION ORIFICE(S): PLUGGED
INV. OUT: 823.30
POND BOTTOM: 832.50
SKIMMER INV.: 834.50
SKIMMER PIPE: 4"
ORIFICE SIZE: 1.00"
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I / RIM: 839.50 / / / / \ l % / / \ \ — — I I
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�I SKIMMER PIPE: 4" , / / / / `I / / / / / STABILIZED AREA (TYP.) / \ \ \ / / /) / , TABLES.
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�' / // / 1 / // // / �/ \ // //// ' FOR FINAL GRADING. SEE SHEETS C4.0 - C4.3 III
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U IL4 /j'/ / / // / // / DRAINAGE AREA: ± 2.92 AC
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Vol— PHASE 3 RISER SEDIMENT BASIN #3
DRAINAGE AREA: ± 26.02 AC
mom Ix / DENUDED AREA: ± 7.90 AC
BOTTOM OF BASIN: 814.50' \
TOP OF DAM: 823'
/ I
NOTES:
— 1. SEE SHEETS C8.0 - C8.5, C6.15 - C6.17, AND C11.0
C11.6 FOR EROSION CONTROL NOTES AND Wl<
DETAILS.
2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE \
\ — DETAILS AND SHEET C8.5 PIPE / STRUCTURE IWDICI<SON
\ TABLES.
3. EROSION CONTROL PLANS SHALL NOT BE USED Community infrastructure consultants
FOR FINAL GRADING. SEE SHEETS C4.0 - C4.3
FOR FINAL GRADING PLANS.
-
` BAFFLES (TYP.)
I / �— DRAINAGE AREA \
It It\ \ \ \ \
I ` DELINEATION(TYP.)\�� ` \
Ar
00
50' UNDISTURBED
STREAM BUFFER
MEASURED FROM TOP\j�\ \� _�
OF BANK (TYP.)��
It
100 STREAM BUFFER
SETBACK FROM TOP
OF BANK
1` \ \ \\\ \\ \ HATCHED AREA
REPRESENTS 40 0 40 80
\STABILIZED AREA (TYP.) �\
1 J / 1 1 I\ 1 \ \ \ \ \ 10OLF TEMPORARY 15" _
— 40
\ SCALE: / / / / / 1 \ \ \ STORM PIPE @0.5% \ \ \ \ \ \ \\ \ \ \ \ \ \ ����
START INV.: 835.03
END INV.:834.53------- \ \ \ \\�� �\� �����\`—�\ \ \�\�\\� \Iz
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comminity infrastructure consultants
1213 W MOREHEAD ST
SUITE 300
CHARLOTTE, NC 28208
(t) 704-334-5348
(f) 704-334-0078
WWW.WKDICKSON.COM
NC LICENSE NO.F-0374
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1. SEE SHEETS C8.0 - C8.5, C6.15 - C6.17, AND C11.0 / \ Z
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2. SEE SHEETS C4.4 - C4.6 FOR STORM DRAINAGE / Q
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� � FOR FINAL GRADING PLANS. SCALE: 1" = 40' Z z
WK
DICKSON
commur1ity infrastructure consultants
1213 W MOREHEAD ST
SUITE 300
CHARLOTTE, NC 28208
(t) 704-334-5348
(f) 704-334-0078
WWW.WKDICKSON.COM
NC LICENSE NO.F-0374
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SKIMMER SEDIMENT BASIN
DESIGN CRITERIA
DRAINAGE
AREA (ACRES)
< 10 AC.
MIN.
LENGTH TO
2:1
WIDTH RATIO
MAX.
LENGTH TO
6:1
WIDTH RATIO
1800
MIN.
(CU. FT.
VOLUME
PER AC.
REQUIRED
DISTURBED)
SURFACE
325
AREA
(SQ. FT. PER
REQUIRED
CFS Q10)
INFLOW
STRUCTURE
DEWATERING
ZONE
FILTER FABRIC
DATA BLOCK
m
STI
AVERAGE
WIDTH W
* AREA
AT TOP
SEDIMENT
STORAGE ZONE
SKIMMER SEDIMENT BASIN
TOP OF DAM
RISER CREST
VI\IJJJ JLV I IL/IV VILVV
1' FREEBOARD W=5' MIN.
1.0' FLOW V_ EMBANKMENT
BAFFLES
T=1.5' MIN.
Z
s�
H=2' MIN 1 I 11
ANTI -SEEP
COLLAR
T
1' FREEBOARD (MIN) -
SKIMMER (SEE DETAIL) 0.6 MIN
DESIGN HIGH-WATER
F
ANTI -VORTEX PLATE 3
TRASH RACK 1 r
RISER
3C
C LEAN OUT
04 STAK E
BOTTOM OF BASIN
A , . • ,
• � h . a a
NOTE: .
REMOVABLE TRASH RACK V CONC. ANCHOR V
IS OPTIONAL FOR EASE
IN MAINTENANCE.
LSEDIMENT CLEAN OUT ELEV.
RISER TYPE SEDIMENT BASIN WITH SKIMMER
BERM
W-10' MIN.
DISCHARGE PIPE
EMERGENCY
SPILLWAY
NCESCPDM SECTION #6.64 FOR
L DESIGN SPECIFICATIONS
SKIMMER SEDIMENT BASINS.
BAFFLE DETAIL FOR SPACING AND
ION OF BAFFLES.
JG PIPE BASIN #1.
DIP UPSTREAM INVERT: 696.00
0%
4. ALL SKIMMER BASIN DEWATERING TIMES ARE
3 DAYS.
5. STABILIZE, SEED, AND MULCH BASIN
SLOPES IMMEDIATELY AFTER CONSTRUCTION
EMERGENCY
SPILLWAY
DEWATERING PIPE
RIPRAP SPILLWAY WITH
GEOTEXTILE LINER
EMERGENCY SPILLWAY
-SEEP COLLARS
CMP OR RCP BARREL
3
�1
GENERAL NOTES:
1. CONTRACTOR SHALL INSTALL PERMANENT
OUTLET STRUCTURE AND OUTLET PIPE
N.T.S.
N.T.S.
BASIN
DRAINAGE
AREA
(ACRES)
DENUDED
AREA
(ACRES)
010 (RISER)
Q25 (SKIMMER)
BASIN VOLUME
REQUIRED PROVIDED
(CUBIC FT.) (CUBIC FT.)
BASIN SURFACE
REQUIRED
(SQ. FT.)
AREA
PROVIDED
(SQ. FT.)
CLEANOUT
DEPTH
(FT.) H/2
H (FEET)
Z (FEET)
L (FEET)
T (FEET)
W (FEET)
SKIMMER
PIPE
DIAMETER
SKIMMER
ORIFICE
DIAMETER
SKIMMER SEDIMENT BASIN #1 - PH1
3.31
2.93
15
5949
6012
4875
5618
1.00
2.00
3.5
10
1.5
10
4
1.00
SKIMMER SEDIMENT BASIN #2 - PH1
3-59
2-77
17
6459
8412
5525
6827
1-00
2-00
3.5
10
1-5
10
4
1-25
RISE R SE DIMENT BAS IN #3 - PH 1
24.89
7.55
105
44808
66541
45480
66541
2.00
4.00
6.5
22
1.5
10
4
1.75
SKIMMER SEDIMENT BASIN #4 - PH1
6-07
2.77
28
10921
11988
9100
9532
1-00
2-00
3.5
10
1.5
10
4
1-25
SKIMMER SEDIMENT BASIN #1 - PH2
2.10
1.86
10
3788
4021
3250
4525
1.00
2.00
3.5
10
1.5
10
4
1.00
SKIMMER SEDIMENT BASIN 92 - PH2
2.92
2.78
14
5252
6289
4550
8223
2.25
4.50
6.0
10
1.5
10
4
1-25
RISER SEDIMENT BASIN 43 - PH2
25-77
7-90
108
46391
66541
47087
66541
2-00
4-00
6.5
22
1-5
10
4
1-75
SKIMMER SEDIMENT BASIN #1 - PH3
2.10
0.00
10
3788
4490
3250
4949
1.00
2.00
3.5
10
1.5
10
4
1.00
SKIMMER SEDIMENT BASIN 92 - PH2
2-84
1 0.31
1 13
5108
6289
4225
8223
2.25
4.50
1 6.0
10
1-5
10
4
1-25
RISER SEDIMENT BASIN #3 - PH3
26.02
16.63
109
46831
66541
47534
66541
2.00
1 4.00
6.5
22
1.5
10
4
1.75
BASIN PARAMETERS
LENGTH AS NECESSARY
TO GO THRU DIKE _\
1.5' MINI r-/ FE
ELEXIBLF PIPE
TIE DOWN 10' MAX. SPACING
TIE DOWN AT END
4' (MI1
DIAMETER (D)
PROFILE
* AT LESS THAN 1% SLOPE
FLEXIBLE PIPE SLOPE DRAIN
PVC END CAP PVC ELBOW
°°° -°° PVC END CAP
PVC PIPE
1/2" HOLES IN
PVC TEE UNDERSIDE
FLEXIBLE
HOSE-\
END VIEW
RIP -RAP AP
WATER SURFACE
SCHEDULE 40
PVC PIPE
RIP RAP & WASHED STONE
FILTER BERM
(C LDS 30.1 2)
SEDIMENT PIT
Af
.,
♦ * a ' a
a
STAKES'
a �
a a ,
PVC VENT
PIPE
FRONT VIEW
PVC TEE
SCHEMATIC OF SKIMMER TAKEN FROM PENNSYLVANIA EROSION AND SEDIMENT POLLUTION
CONTROL MANUAL, MARCH 2O00.
NOTE:
CONTRACTOR SHALL USE JW FAIRCLOTH SKIMMER
SKIMMER
CONSTRUCTION SPECIFICATIONS:
1. THE TOP OF THE EARTH DIKE OVER THE INLET PIPE AND
THOSE DIKES CARRYING WATER TO THE PIPE SHALL BE AT
LEAST 1.5 FEET HIGHER AT ALL POINTS THAN THE TOP OF THE
SEDIMENT PIT
INLET PIPE.
IS LOC ATED DOWNSTREAM
2. THE PIPE SHALL BE FLEXIBLE WITH WATER TIGHT
OF PIPE OUTLET.
(VOLUME PER GILDS 30.12)
CONNECTING BANDS. FLEXIBLE PIPE SHOULD BE STAKED
ON EITHER SIDE.
3. A RIP RAP APRON SHALL BE PROVIDED AT THE
OUTLET, IF EMPTYING INTO A DISTURBED AREA.
4. THE SOIL AROUND AND UNDER THE INLET PIPE AND
ENTRANCE SECTION SHALL BE HAND TAMPED IN 4" LIFTS TO
THE TOP OF THE EARTH DIKE.
5. FOLLOW-UP INSPECTION AND ANY NEEDED MAINTENANCE
SHALL BE PERFORMED AFTER EACH STORM BY THE FINANCIALLY
RESPONSIBLE PARTY OR HIS AGENT.
6. OUTLET PIPE SHOULD BE TAKEN OVER OR THROUGH ANY SILT
FENCE, TAKING CARE NOT TO VOID THE EFFECTIVENESS OF THE
SILT FENCE.
SCHEDULE 40
PVC PIPE
ORIFICE
PLATE
PERSPECTIVE VIEW
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DICKSON
communitv infrastructure consultants
1213 W MOREHEAD ST
SUITE 300
CHARLOTTE, NC 28208
(t) 704-334-5348
(f) 704-334-0078
WWW.WKDICKSON.COM
NC LICENSE NO.F-0374
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PROJ. DATE: OCT. 2022
DRAWING NUMBER:
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WKD PROJ. NO.:
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FILL SLOPE
3:1 SIDE SLOPE -
2' MIN.
FINISH GRADE
NATURAL GROUND
2' MIN.
(BORROW AREA)
COMPACTED
BERM
Nq
NOTE: /`J/�` DEPTH OF TEMPORARY DITCH,
1. DITCH SHOULD HAVE MINIMUM LONGITUDINAL SLOPE OF 1.0%.
2. SILT FENCE MAY BE REQUIRED BEHIND BERM.
3. STABILIZE, SEED, MULCH, AND MATTED IMMEDIATELY AFTER CONSTRUCTION.
MAINTENANCE NOTE:
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 PERMANENTLY STABILIZED, REMOVE
THE RIDGE AND THE CHANNEL TO BLEND WITH THE NATURAL GROUND LEVEL AND APPROPRIATELY
STABILIZE IT.
DITCH
CIEPTH (ft)
BOTTOM WIDTH (ft)
TOP WIDTH (ft)
SIDE SLOPES
(xH:1V)
CHANNEL
LINNG
WATTLE
SPACING (ft)
TDD #1.1 PHI
1.00
3.00
9.00
3
Straw w ith Net
62
TDD #1.2 PHI
1.00
3.00
9.00
3
Straw w ith Net
100
TDD#2.1 PHI
1.00
3,00
9,00
3
Straw w M Net
100
TDD#2.2 PHI
1.00
3,00
9,00
3
Straw w M Net
100
TDD #3.1 PHI
2.00
5.00
17.00
3
Straw w ith Net
200
TDD#4.1 PH1
2.00
1,00
13,00
1 3
Straw w ith Net
118
CWD#1.1 PH1
1.00
3,00
9.04
1 3
Straw w Rh Net
18
CWD#2.1 PHI
1.00
3,00
9.00
3
Synthetic Mat
12
TEMPORARY DIVERSION DITCH
W,
END OF FLARED SECTION
PLAN
NATURAL GRADE
* d50 (see fia 8.06 a&b "NC SEDIMENT AND EROSION CONTROL MANUAL"
(IFNEEDED) V
THICKNESS)
/S•M/Al
100
MiN
'
OPT
•
QJ i.
. 3
• r
O
6" MIN.
2"-3" COARSE AGGREGATE
OR CLASS A OVERLAID
WITH
ABC STONE PLAN VIEW 2"-3" COARSE
AGGREGATE OR CLASS A
100' MIN.
- ✓6" DIVERSION TO DIRECT RUNOFF FROM R/W
IF
SECTION VIEW
O
SEE NOTE 5 BELOW
CONSTRUCTION
1. CONTRACTOR SHALL REFERENCE NCDOT DRIVEWAY PERMITS FOR ADDITIONAL TEMPORARY
SPECIFICATIONS:
CONSTRUCTION ENTRANCE INSTALLATION REQUIREMENTS
1. CLEAR THE ENTRANCE AND EXIT AREA OF ALL VEGETATION, ROOTS, AND OTHER
OBJECTIONABLE MATERIAL AND PROPERLY GRADE IT.
2. PLACE THE GRAVEL TO THE SPECIFIC GRADE AND DIMENSIONS SHOWN ON
THE PLANS, AND SMOOTH IT OUT.
3. PROVIDE DRAINAGE TO CARRY WATER TO A SEDIMENT TRAP OR OTHER SUITABLE OUTLET.
4. USE GEOTEXTILE FABRICS BECAUSE THEY IMPROVE STABILITY OF THE FOUNDATION
IN LOCATIONS SUBJECT TO SEEPAGE OR HIGH WATER TABLE.
5. CONTRACTOR SHALL INSTALL TEMPORARY CULVERTS WHERE REQUIRED PER NCDOT DRIVEWAY
PERMITS IN ORDER TO MAINTAIN POSITIVE DRAINAGE.
MAINTENANCE:
1. MAINTAIN THE GRAVEL PAD IN A CONDITION TO PREVENT MUD OR SEDIMENT FROM
LEAVING THE CONSTRUCTION SITE. THIS MAY REQUIRE PERIODIC TOP -DRESSING WITH
2-INCH STONE. AFTER EACH RAINFALL, INSPECT ANY STRUCTURE USED TO TRAP
SEDIMENT AND CLEAN IT OUT IF NECESSARY. IMMEDIATELY REMOVE ALL
OBJECTIONABLE MATERIALS SPILLED, WASHED, OR TRACKED ONTO PUBLIC ROADWAYS.
N.T.S. I TEMPORARY CONSTRUCTION ENTRANCE DETAIL
MINIMUM H=2/3 PIPE DIAMETER
NOTES: SECTION B-B
1. CLASS OR MEDIAN SIZE OF RIPRAP AND LLNG­, WIDIH AND DEPTH OF APRON TO BE DESIGNED BY THE ENGINEER.
2. REFER TO THE CHARLOTTE MECKLENBURG STORM WATER DESIGN MANUAL FOR RIPRAP APRON DESIGN STANDARDS.
3. RIPRAP SHOULD EXTEND UP BOTH SIDES OF THE APRON AND AROUND THE END OF THE PIPE OR CULVERT AT THE
DISCHARGE OUTLET AT A MAXIMUM SLOPE OF 2:1 AND A HEIGHT NOT LESS THAN TWO THIRDS THE PIPE DIAMETER
OR CULVERT HEIGHT.
4. THERE SHALL BE NO OVERFLOW FROM THE END OF THE APRON TO THE SURFACE OF THE RECEIVING CHANNEL, THE
AREA TO BE PAVED OR RIPRAPPED SHALL BE UNDERCUT SO THAT THE INVERT OF THE APRON SHALL BE AT THE
SAME GRADE (FLUSH) WITH THE SURFACE OF THE RECEIVING CHANNEL. THE APRON SHALL HAVE A CUTOFF OR TOE
WALL AT THE DOWNSTREAM END.
5. THE WIDTH OF THE END OF THE APRON SHALL BE EQUAL TO THE BOTTOM WIDTH OF THE RECEIVING CHANNEL.
MAXIMUM TAPER TO RECEIVING CHANNEL 5:1.
6. ALL SUBGRADE FOR STRUCTURE TO BE COMPACTED TO 95% OR GREATER.
7. THE PLACING OF FILL, EITHER LOOSE OR COMPACTED IN THE RECEIVING CHANNEL SHALL NOT BE ALLOWED.
8. NO BENDS OR CURVES IN THE HORIZONTAL ALIGNMENT OF THE APRON WILL BE PERMITTED.
9. FILTER FABRIC SHALL BE INSTALLED ON COMPACTED SUBGRADE PRIOR To PLACEMENT OF RIP RAP.
10. ANY DISTURBED AREA FROM END OF APRON TO RECIEVING CHANNEL MUST BE STABILIZED.
USE USDA NOMOGRAPH FROM NC SEDIMENT AND EROSION CONTROL MANUAL OR CHARLOTTE MECKLENBURG STORM
WATER DESIGN MANUAL FOR DESIGN DATA.
RIPRAP APRON
8' MAX.
WIRE FENCING
SIL
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STORAGE AREA
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PLAN VIEW
GENERAL NOTES:
1. SEDIMENT SHALL BE REMOVED AND TRAP RESTORED TO ITS ORIGINAL DIMENSIONS
WHEN THE SEDIMENT HAS ACCUMULATED TO 1/2 THE DESIGN DEPTH OF THE TRAP.
2. REMOVED SEDIMENT SHALL BE DEPOSITED IN A SUITABLE AREA AND IN SUCH
A MANNER THAT IT WILL NOT ERODE.
3. THE STRUCTURE SHALL BE INSPECTED AFTER EACH STORM EVENT BY THE
CONTRACTOR OR HIS AGENT AND REPAIRS MADE AS NECESSARY.
4. CONSTRUCTION OPERATIONS SHALL BE CARRIED OUT IN SUCH A MANNER THAT
EROSION AND WATER POLLUTION ARE MINIMIZED.
5. THE SEDIMENT TRAP SHALL BE REMOVED AND THE AREA STABILIZED WHEN THE
DRAINAGE BASIN HAS BEEN PROPERLY STABILIZED.
6. SILT FENCE INSTALLATION SHALL BE IN ACCORDANCE WITH DETAIL 10/C10.0
SECTION A -A
N.T.S. TEMPORARY INLET PROTECTION
STEEL POST
WIRE FENCING
=1LTER FABRIC
#5 WASHED STONE
SILT FENCE
DENUDED LIMITS
STEEL SILT FENCE P
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STEEL SILT FENCE POST
SILT FENCE POST
LINE OF POST BEYOND
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6' MAX. STANDARD STRENGTH FABRIC WITHOUT WIRE FENCE
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�\ STAY WIRES MIN. #14 GUAGE
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1. WIRE SHALL BE A MINIMUM OF 32" IN WIDTH AND
SHALL HAVE A MINIMUM OF 6 LINE WIRES W/12" STAY
SPACING.
2. FILTER FABRIC SHALL BE A MINIMUM OF 36" IN WIDTH
AND SHALL BE FASTENED ADEQUATELY TO THE WIRE AS
DIRECTED BY THE ENGINEER.
3. STEEL POST SHALL BE 5' 0" IN HEIGHT AND BE OF
SELF FASTENER ANGLE STEEL TYPE.
4. SILT FENCE SHALL BE INSTALLED ON ROW OR TWS
ALONG DOWNHILL SIDE OF EASEMENT. SILT FENCE IS
STONE OFFSET FROM ROW OR TWS ON EROSION CONTROL PLAN
SHEETS FOR DISPLAY PURPOSES ONLY.
5. SYNTHETIC FILTER FABRIC OF AT LEAST 95% WEIGHT
OF POLYOLEFINS OR POLYESTER, WHICH IS CERTIFIED BY
THE MANUFACTURER OR SUPPLIER AS CONFORMING TO
;T THE REQUIREMENTS IN ASTM D 6461.
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MAINTENANCE NOTES:
INSPECT SEDIMENT FENCES AT LEAST ONCE A WEEK AND AFTER EACH RAINFALL. MAKE ANY REQUIRED
REPAIRS IMMEDIATELY.
SHOULD THE FABRIC OF A SEDIMENT FENCE COLLAPSE, TEAR, DECOMPOSE OR BECOME INEFFECTIVE,
REPLACE IT PROMPTLY.
REMOVE SEDIMENT DEPOSITS AS NECESSARY TO PROVIDE ADEQUATE STORAGE VOLUME FOR THE NEXT
RAIN AND TO REDUCE PRESSURE ON THE FENCE. TAKE CARE TO AVOID UNDERMINING THE FENCE
DURING CLEANOUT.
REMOVE ALL FENCING MATERIALS AND UNSTABLE SEDIMENT DEPOSITS AND BRING THE AREA TO GRADE
AND STABILIZE IT AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED.
GUIDELINES FOR TEMPORARY SILT FENCE DETAIL N.T.S.
1. INLET MAINTENANCE SHALL BE DOCUMENTED IN PROJECT LOG BOOK.
2. FILTER TYPES SHALL BE APPROVED BY THE CITY INSPECTOR PRIOR
TO INSTALLATION.
3. FILTER BAGS MAY BE REMOVED WHEN SITE IS STABILIZED AT
THE DIRECTION OF THE ENGINEER.
4. FILTER BAGS SHALL BE REMOVED PRIOR TO STREET ACCEPTANCE.
5. FILTER BAGS SHALL BE CLEANED OR REPLACED EVERY 7 DAYS AND AFTER
EVERY 0.5 RAINFALL (BAG SHALL NOT BE MORE THAN HALF FULL AT ANY TIME).
6. FILTER BAGS SHALL NOT BE ALLOWED IN EXISTING CITY OR NCDOT
ROADS.
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GENERAL NOTES:
MAINTENANCE NOTES:
1. WIRE FENCING SHALL BE A MINIMUM OF 32" IN WIDTH AND SHALL HAVE A MINIMUM OF 6
LINE WIRES WITH 12" STAY SPACING.
1. FILTER BARRIERS SHALL BE INSPECTED BY
THE FINANCIALLY RESPONSIBLE PARTY OR
2. WOVEN FILTER FABRIC BE USED WHERE SILT FENCE IS TO REMAIN FOR A PERIOD OF
HIS AGENT IMMEDIATELY AFTER EACH
MORE THAN 30 DAYS.
RAINFALL AND AT LEAST DAILY DURING
PROLONGED RAINFALL. ANY REPAIRS NEEDED
3. STEEL POSTS SHALL BE 5'-0" IN HEIGHT AND BE OF THE SELF -FASTENER ANGLE STEEL
SHALL BE MADE IMMEDIATELY.
TYPE.
2. SHOULD THE FABRIC DECOMPOSE OR
4. WIRE FENCING SHALL BE AT LEAST #10 GAGE WITH A MINIMUM OF 6 LINE WIRES WITH
BECOME INEFFECTIVE PRIOR TO THE END OF
12" STAY SPACING.
THE EXPECTED USABLE LIFE AND THE
BARRIER STILL IS NECESSARY, THE FABRIC
5. TURN SILT FENCE UP SLOPE AT ENDS.
SHALL BE REPLACED PROMPTLY.
6. WIRE MESH SHALL BE MIN. 13 GAGE WITH MAXIMUM 12" OPENINGS.
3. SEDIMENT DEPOSITS SHOULD BE REMOVED
WHEN DEPOSITS REACH HALF THE HEIGHT
7. WIRE AND WASHED STONE IS REQUIRED TO BE SHOWN ON PLANS AT THE TOE OF
OF THE BARRIER. ANY SEDIMENT DEPOSITS
SLOPES GREATER THAN 10 FEET VERTICAL (2:1 SLOPE)
REMAINING IN PLACE AFTER THE SILT FENCE
IS REMOVED SHALL BE DRESSED TO
8. ORANGE SAFETY FENCE IS REQUIRED AT BACK OF SILT FENCE WHEN GRADING IS
CONFORM TO THE EXISTING GFM)S-HGRADE
ADJACENT TO SWIM BUFFERS, STREAMS OR WETLANDS (REFER TO SWIM BUFFER
PREPARED AND SEEDED.
GUIDELINES). THE COLOR ORANGE IS RESERVED FOR VISUAL IDENTIFICATION OF
ENVIRONMENTALLY SENSITIVE AREAS.
9. DRAINAGE AREA CAN NOT BE GREATER THAN 1/4 ACRE PER 100 FT OF FENCE.
10. SLOPE LENGTHS CAN NOT EXCEED CRITERIA SHOWN IN TABLE 6.62A NORTH CAROLINA
EROSION AND SEDIMENT CONTROL PLANNING AND DESIGN MANUAL.
11. DO NOT INSTALL SEDIMENT FENCE ACROSS STREAMS, DITCHES, WATERWAYS OR OTHER
AREAS OF CONCENTRATED FLOW.
2' 1 6' 1 2'
PLAN
MAINTENANCE NOTES:
SEE SILT FENCE DETAIL FOR MAINTENANCE NOTES.
STEEL SILT FENCE POST
20" COMPOST WATTLE
1.25'
SECTION
2' OVERLAP FROM EDGE
OF SILT FENCE TO END
OF WATTLE. WATTLE TO
BE INSTALLED AGAINST
SILT FENCE TO ENSURE
NO WATER BYPASSES SILT SACK DETAIL
WATTLES.
DWK
DICKSON
communitv infrastructure consultants
1213 W MOREHEAD ST
SUITE 300
CHARLOTTE, NC 28208
(t) 704-334-5348
(f) 704-334-0078
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allow the rolls to mold to any irregularities.
I I 111 l DOWNSLOPE STAKES, TYP.
I� II II- I i
1 Design velocities exceeding2 ft/sec (4.5misec)require temporary blankets, mats or sarnilarliners"
For slopes less than 3HAV, rolls Lime,fertilize, and seed before installation.
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to protect seed and soil urLl vegetationbecomes established.
maybe placed in horizontal strips. Planting of shrubs, trees, etc. Should occur
after installation.
MIN. 10 LF EXCELSIOR MATTING
2 Grass -lined channels with design velocities exceeding6 fUsec (2m/sec) should include turf reinforcement
2' MIN. ON UPSLOPE
mats.
Figure 4.1.4- Slope Installation
AND 8' MIN. ON DOWNSLOPE
NOTES:
1. USE MINIMUM 12" DIA. COMPOST WATTLE. 20" WATTLES ARE ALSO SPECIFIED��nstructionStormwaterPollutionPrevention-Au
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1. SEE DIVERSION DITCH CHART FOR LINER TYPE AND WATTLE SPACING.
2. MIN. SHEAR STRENGTH: STRAW WITH NET (OR APPROVED EQUAL) - 1.45 LBS/FT2
1. GRADE THE SURFACE OF INSTALLATION AREAS SO THATJ� E GROUND IS SMOOTH AND LOOSE.
2. WHEN SEEDING PRIOR TO INSTALLATION, FOLLOW THE STEPS FOR SEED BED PREPARATION, SOIL AMENDMENTS,
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CURLEX I (OR APPROVED EQUAL) - 1.75 LBS/FT2
AND SEEDING AS NOTED IN "SURFACE STABILIZATION 6.1" (GENERAL NOTES) AND AS PER NCDEQ STANDARDS.
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CURLEX II (OR APPROVED EQUAL) - 2.25 LBS/FT2
3. SPREAD SEED BEFORE EROSION CONTROL MATTING IS INSTALLED.
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PSRM (PERMANENT SOIL REINFORCED MAT) - 3.0 LBS/FT2
4. MATTING SHALL BE INSTALLED FROM TOP OF BANK TO TOP OF BANK ALONG DITCHES WITHIN DENUDED LIMITS.
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MATTING SHALL BE INSTALLED IN ALL DITCHES INDICATED ON PLANS AFTER SOIL IS DISTURBED BY
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MAINTENANCE NOTES:
` ALL RATINGS ABOVE ARE MINIMUM SHEAR STRENGTH REQUIREMENTS FOR THE MATTING BASED ON UNVEGETATED
CONSTRUCTION ACTIVITY.
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RAINFALL EVENT. REPAIR ALL DAMAGE IMMEDIATELY.
RIPRAP IN CHANNELS AS REQUIRED PER THE ERODES SPREADSHEET MAY BE REPLACED WITH A COIR MATTING OR
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SYNTHETIC MATTING AS LONG AS THE MATTING MEETS THE MINIMUM SHEAR STRESS AND VELOCITY REQUIREMENTS OF EACH
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RAINFALL OCCURRENCE THAT EXCEEDS ONE-HALF (0.5) INCH.
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INTO SOLID GROUND.
(TYPICAL) BE SURE TO MAINTAIN ACCESS TO THE BAFFLES. SHOULD THE FABRIC OF A BAFFLEraltG�
COLLAPSE, TEAR, DECOMPOSE, OR BECOME INEFFECTIVE, REPLACE IT PROMPTLY. 2. USE STAPLES V APART
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SHOULD NEVER EXCEED HALF THE DESIGNED STORAGE DEPTH. 3. MINIMUM BAFFLE SPACING IS 10'.
AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN PROPERLY STABILIZED, REMOVE 4. THE FLOOR OF THE BASIN IN THE
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