SW4210703_Plansheet (6) - Proposed Drainage Area_20210914

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undersigned hereby certifies to the no� m
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The subject property is located in a SPECIAL FLOOD/ .
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HAZARD AREA as defirmined by HUD/FIA flood map.
DAVIDSON ELECTRIC
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The subject property is located In an area which has DB 1 044 PG 1495
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CLINARD FARM PARTNERS, L.L.( RCP
PIN 6820-01-28-1078
W/ SKIM AND­COIR BAFFLES
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SITE DATA
PROPOSED ZONING: MX—R
PROP. LAND USE: RESIDENTIAL
TOTAL No. LOTS PROPOSED: 30
TOTAL SITE AREA: 18.67 Ac.±
L.F. STREETS: 1,323 LF
SEWER: DAVIDSON COUNTY
WATER: DAVIDSON WATER, INC.
AVERAGE SLOPE: 5% ±
DISTURBED AREA: 14.4 Ac.±
PARCEL ID: 6320-01-35-7901 (PORTION)
EST. START DATE: JULY 2020
EST. END DATE: DEC. 2021
RIVER BASIN: YADKIN/PEE—DEE
CONSTRUCTION SEQUENCE FOR ALL STREAM CROSSINGS
(SEE NOTE ABOVE CONCERNING NPDES PERMIT)
1. CONTRACTOR SHALL INSTALL TEMPORARY CREEK CROSSING AS
DETAILED. THE TEMPORARY CREEK CROSSING SHALL BE
INSTALLED ON THE UPSTREAM PORTION OF THE EASEMENT' AN
ADEQUATE DISTANCE TO ALLOW SEWER LINE INSTALLATION.
�2. PRIOR TO INSTALLING THE SEWER LINE ACROSS THE CREEK, THE
CONTRACTOR SHALL INSTALL A TEMPORARY DAM UPSTREAM OF THE
�CONSTRUCTION ACTIVITIES, AND PUMP THE STREAM FLOW AROUND THE
AREA OF DISTURBANCE. THE TEMPORARY DAM SHALL BE OF A
NON —ERODIBLE MATERIAL SUCH AS SAND BAGS OR PLASTIC SHEETING
OVER STONE.
3. UPON COMPLETION OF THE SEWER LINE INSTALLATION CROSSING
THE CREEK, THE CONTRACTOR SHALL STABILIZE ALL DISTURBED AREAS
WITH RIP —RAP (SEE DETAIL).
4. UPON COMPLETION OF RIP —RAP, THE CONTRACTOR SHALL REMOVE
THE TEMPORARY DAM, AND TERMINATE BYPASS PUMPING.
5. AT WHICH TIME THE SEWER LINE INSTALLATION HAS PASSED ALL
TESTING, AND THE AREA SEEDED, THE CONTRACTOR SHALL REMOVE
THE TEMPORARY CREEK CROSSING, AND RE—ESTABLISH ORIGINAL
CREEK BANK ELEVATIONS.
NOTE: PUMP STREAM AROUND WORK AREA
nAP APRON
IECKoAM WITH
STONE FACE
UNG BASIN
PLAN
CLASS IRIP-RAP (TYP.)
L, _.,e SANDBAGS (TYP.)
'onwonsTE FILL
PROPOSED PIPELINE
NOTES:
1. CONSTRUCT COFFER DAM AND UTILIZE
DEWATERING BASIN TO DRAIN WORK AREA.
2. PUMP WORK AREA.
o. CONVERT COFFER omw TO mncAw
onuaSIwo WHEN NO LONGER NEEDED.
4. oAnc mooT BE Txncw TO xvon
nowrAwzwATIow TO THE mnsAm FROM |
poonc: oowomETE SEALANT. |
COFFIER DAM
FOR BY—PASS PUMPING PIPELINE STREAM CROSSINGS
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SHEET NO.
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ON
NOIE- SEE SHEET NCGOI FOR INFORMATION ON GROUND
MATERIALS HANDLING, SELF —INSPECTIONS, RECORD KEEPING,
AND REPORTING.