South Carolina DHEC Storm Water Management BMP Handbook Revised February 2014 Appendix I APPENDIX I RUNOFF CONTROL STANDARD DETAILS
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South Carolina DHEC Storm Water Management BMP Handbook Revised February 2014 Appendix I
APPENDIX I
RUNOFF CONTROL STANDARD
DETAILS
South Carolina DHEC Storm Water Management BMP Handbook Revised February 2014 Appendix I
Standard Details
No. Description
RC-01 Pipe Slope Drain
RC-01 Pipe Slope Drain (page 2)
RC-02 Diversion Dike or Berm
RC-02 Diversion Dike or Berm (page 2)
RC-03 Diversion Swale
RC-03 Diversion Swale (page 2)
RC-04 Level Spreader
RC-04 Level Spreader (page 2)
RC-05 Temporary Stream Low Water Crossing
RC-05 Temporary Stream Low Water Crossing (page 2)
RC-05 Temporary Stream Low Water Crossing (page 3)
RC-06 Subsurface Drain Layout
RC-07 Concrete Washout - Straw Bales or Above Ground
RC-08 Concrete Washout - Excavated Pit
RC-09 Individual Residential Lot Controls
South Carolina Department of
Health and Environmental Control
3:1
LEVEL SECTION
CORRUGATEDPLASTIC PIPE
OUTLETSTABILIZE
10-FT. SPACING
HOLD-DOWN STAKES
INLET PROTECTION
COMPACTED
FILL
TYPICAL PIPE SLOPE DRAIN LAYOUT
COMPACTEDTOP OF
DIVERSIONBERM
FT. MIN
.
3:1
4-FT. MIN.
10-FT. SPACING
OUTLET PROTECTION
PIPE
CORRUGATEDPLASTIC
STAKESHOLD-DOWN
2-FT. MIN.
INLET
LEVEL SECTION
NON-PERFORATED
1.5-FT. MIN
.
(ECB, TRMs, or RIPRAP)
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
STABLE UNDISTURBED
OUTLET AREA
(MAXIMUM SLOPE-10%)
LEVEL SPREADER LIP
LENGTH
ENTRANCE
WIDTH
DIVERSION CHANNEL
DIVERSION
BERM
FL
OW
STABILIZED
SLOPE
END WIDTH
TRANSITION TO
ZERO GRADE
LEVEL LIP
OF SPREADER
FLOW
EXTEND BLANKET
OVER LIP
(12-IN. MIN.)
PERMANENT TRM
BURY 6-IN. MIN.
OVERFLOW
WATER LEVEL6-IN. MIN.
DEPTH
(cfs)
LEVEL
15'
END
WIDTH (ft)WIDTH (ft) (ft)LENGTH
LENGTH (ft)
DEPTH
LEVEL SPREADER
SPREADER
Q ENTRANCE SPREADER LIP
(ft)
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
ELEVATION
PLAN VIEW
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
South Carolina Department of
Health and Environmental Control
SUBSURFACE DRAIN LAYOUT
TYPICAL SECTION
EFFECT OF SUBSURFACE
DRAINAGE ON THE WATER TABLE
South Carolina Department of
Health and Environmental Control
CONCRETE WASHOUT
CONCRETE
WASHOUT
CONCRETE WASHOUT SIGN DETAIL
PLANTYPE "ABOVE GRADE"
WITH STRAW BALES
SECTION B-B
STRAW BALE BARRIER CONCRETE WASHOUT
CONCRETE WASHOUTCONCRETE WASHOUT SIGN DETAIL
EXCAVATED PIT CONCRETE WASHOUT
SECTION B-BNOT TO SCALE
SECTION A-ANOT TO SCALE
PLANTYPE "EXCAVATED PIT"
CONCRETE
WASHOUT
SLOPE
INDIVIDUAL RESIDENTIAL LOT CONTROLS
LOT EXAMPLE "A"SLOPES TO FRONT
LOT EXAMPLE "B"SLOPES TO REAR
LOT EXAMPLE "C"SLOPES TO SIDE
NOTES
1. THE KEY TO FUNCTIONAL INDIVIDUAL LOT BMPS IS WEEKLY INSPECTIONS, ROUTINE MAINTENANCE, AND REGULAR
SEDIMENT REMOVAL.
2. NO MORE THAN 14 ACRE TO DRAIN TO 100 L.F. OF SILT FENCE.
3. SEE INDIVIDUAL LOT CONSTRUCTION ENTRANCE, SILT FENCE, CONCRETE WASHOUT & STOCKPILE DETAILS FOR
ADDITIONAL INFORMATION.
4. ADDITIONAL BMPS, SUCH AS INLET PROTECTION, ROCK CHECKS, SEDIMENT TUBES & SILT FENCE ROCK OUTLETS,
MAY BE NECESSARY ON A LOT-TO-LOT BASIS. ADDITIONAL BMPS SHOULD BE IMPLEMENTED AS NOTED ON PLANS OR
DIRECTED UPON SITE INSPECTIONS.
5. CONCRETE WASHOUTS MAY NOT NEED TO BE PROVIDED ON EACH INDIVIDUAL LOT WHEN A WASHOUT AREA HAS
BEEN DESIGNATED AND IMPLEMENTED WITHIN THE DEVELOPMENT FOR COMMON USE.
6. PROPER WASTE DISPOSAL TECHNIQUES MUST BE IMPLEMENTED ON EACH LOT TO PREVENT STORMWATER RUNOFF
CONTACT WITH EXPECTED WASTE MATERIALS (SUCH AS EXCESS BUILDING MATERIALS, TRASH, AND OTHER
POTENTIAL POLLUTANTS).
SLOPE
SLOPE
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