Salt__Sand_Final_DEQ_Drawing_changes.pdf

1-1/2"

2-1/2"

42.0"

24.0"

3-7/8"

2-3/4"

SECTION C-C

SECTION B-B

PLAN VIEW

SECTION A-A

REMOVABLE

COVER (TYP.)

INLET GRATE

(TYP.)

0.75 CFS

WATER QUALITY

FLOW RATE

SITE DESIGN DATA

PEAK FLOW

RATE

2.88 CFS

10 YRS

RETURN PERIOD

OF PEAK FLOW

ZPG

FILTER MEDIA TYPE

COUNT DESCRIPTION INSTALLED BY

MATERIALS LIST - PROVIDED BY MANUFACTURER

CONTRACTOR

CONTRACTOR

CONTRACTOR

FLOW KIT

36 LF

36 LF

CONTRACTOR

CONTRACTOR

24" x 26" INLET GRATE (EJIW 00695841)

24" x 26" REMOVABLE COVER (EJIW 00695820)

24" x 45" REMOVABLE COVER (EJIW 47513031)

18" CARTRIDGE, 15 GMP (BLK)

MANUFACTURER

MANUFACTURER

PERFORMANCE SPECIFICATION

FILTER CARTRIDGES SHALL BE MEDIA-FILLED, PASSIVE, SIPHON ACTUATED, RADIAL FLOW, AND SELF CLEANING. RADIAL MEDIA DEPTH SHALL BE 7-INCHES. FILTER MEDIA CONTACT

TIME SHALL BE AT LEAST 37 SECONDS.

SPECIFIC FLOW RATE SHALL BE 2 GPM/SF (MAXIMUM). SPECIFIC FLOW RATE IS THE MEASURE OF THE FLOW (GPM) DIVIDED BY THE MEDIA SURFACE CONTACT AREA (SF). MEDIA

VOLUMETRIC FLOW RATE SHALL BE 6 GPM/CF OF MEDIA (MAXIMUM).

1. MANUFACTURER TO PROVIDE ALL MATERIALS UNLESS NOTED OTHERWISE.

2. DIMENSIONS MARKED WITH ( ) ARE REFERENCE DIMENSIONS. ACTUAL DIMENSIONS MAY VARY.

3. FOR FABRICATION DRAWINGS WITH DETAILED STRUCTURE DIMENSIONS AND WEIGHTS, PLEASE CONTACT YOUR MANUFACTURER REPRESENTATIVE.

4. MANUFACTURED TREATMENT DEVICE STRUCTURE SHALL BE IN ACCORDANCE WITH ALL DESIGN DATA AND

INFORMATION CONTAINED IN THIS DRAWING. CONTRACTOR TO CONFIRM THAT STRUCTURE MEETS THE REQUIREMENTS OF THE PROJECT.

5. STRUCTURE SHALL MEET AASHTO HS20 LOAD RATING, ASSUMING EARTH COVER OF 0' - 5' AND GROUNDWATER ELEVATION AT, OR BELOW, THE OUTLET PIPE INVERT ELEVATION.

ENGINEER OF RECORD TO CONFIRM ACTUAL GROUNDWATER ELEVATION. CASTINGS SHALL MEET AASHTO M306.

6. GRATE INLETS/COVERS SHALL BE EAST JORDAN IRON WORKS #00695840 / #00695820 / #47513031 OR

APPROVED EQUALS.

7. TRENCH FRAMES SHALL BE EAST JORDAN IRON WORKS #00695031 / #47300311 OR APPROVED EQUALS.

8. HEAVIEST GRATE/COVER PICK WEIGHT IS 430 LBS.

9. CONTRACTOR TO REFER TO DEQ'S APPROVED LIST OF MTD'S FROM THE VIRGINIA BMP CLEARINGHOUSE WEBSITE.

10. ACCORDING TO DEQ'S REQUIREMENTS, MTD TO PROVIDE ATLEAST 10% REDUCTION IN TP BELOW PRE-REDEVELOPMENT LOAD.

INSTALLATION NOTES

A. ANY SUB-BASE, BACKFILL DEPTH, AND/OR ANTI-FLOTATION PROVISIONS ARE SITE-SPECIFIC DESIGN CONSIDERATIONS AND SHALL BE SPECIFIED BY ENGINEER OF RECORD.

B. CONTRACTOR TO PROVIDE EQUIPMENT WITH SUFFICIENT LIFTING AND REACH CAPACITY TO LIFT AND SET THE MANUFACTURED TREATMENT DEVICE STRUCTURE (LIFTING

CLUTCHES PROVIDED).

C. CONTRACTOR TO INSTALL JOINT SEALANT BETWEEN ALL SECTIONS AND ASSEMBLE STRUCTURE.

D. CONTRACTOR TO PROVIDE, INSTALL, AND GROUT PIPES. MATCH OUTLET PIPE INVERT WITH OUTLET BAY FLOOR.

E. CONTRACTOR TO TAKE APPROPRIATE MEASURES TO PROTECT CARTRIDGES FROM CONSTRUCTION-RELATED EROSION RUNOFF.

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PEAK DIVERSION MANUFACTURED TREATMENT DEVICE

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40'

SCALE:1"= 20'

0 20'

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CD

TP

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FILTER FABRIC

WIRE

3/8" X 3/8" WIRE MESH

SEDIMENT

FILTERED WATER

*GRAVEL (12" MIN. DEPTH)

SPECIFIC APPLICATION

2 ACRES OR LESS OF DRAINAGE AREA:

(DOWNSTREAM VIEW)

FLOW

6"

3'

3'

NTS

GRAVEL CONSTRUCTION ENTRANCE DETAIL

NTS

SILT FENCE DETAIL

NTS

CHECK DAM DETAIL

NTS

GRAVEL AND WIRE MESH DROP INLET SEDIMENT FILTER DETAIL

18" MIN.

* GRAVEL SHALL BE #3, #357, OR #5 COARSE AGGREGATE

2 TO 3" STONE

COARSE

10' MAX.

PLAN

SECTION B-B

STAPLE DETAIL

CONSTRUCTION SPECIFICATIONS

1. SIZE WASHOUT STRUCTURE FOR VOLUME NECESSARY TO CONTAIN WASH WATER AND SOLIDS AND MAINTAIN AT

LEAST 4 INCHES OF FREEBOARD. TYPICAL DIMENSIONS ARE 10 FEET X 10 FEET X 3 FEET DEEP.

2. PREPARE SOIL BASE FREE OF ROCKS OR OTHER DEBRIS THAT MAY CAUSE TEARS OR HOLES IN THE LINER. FOR

LINER, USE 10 MIL OR THICKER UV RESISTANT, IMPERMEABLE SHEETING, FREE OF HOLES AND TEARS OR OTHER

DEFECTS THAT COMPROMISE IMPERMEABILITY OF THE MATERIAL.

3. PROVIDE A SIGN FOR THE WASHOUT IN CLOSE PROXIMITY TO THE FACILITY.

4. KEEP CONCRETE WASHOUT STRUCTURE WATER TIGHT. REPLACE IMPERMEABLE LINER IF DAMAGED (E.G., RIPPED OR PUNCTURED). EMPTY OR REPLACE WASHOUT STRUCTURE THAT IS 75 PERCENT FULL, AND DISPOSE

OF ACCUMULATED MATERIAL PROPERLY. DO NOT REUSE PLASTIC LINER. WET-VACUUM STORED LIQUIDS THAT

HAVE NOT EVAPORATED AND DISPOSE OF IN AN APPROVED MANNER. PRIOR TO FORECASTED RAINSTORMS, REMOVE LIQUIDS OR COVER STRUCTURE TO PREVENT OVERFLOWS. REMOVE HARDENED SOLIDS, WHOLE OR

BROKEN UP, FOR DISPOSAL OR RECYCLING. MAINTAIN RUNOFF DIVERSION AROUND EXCAVATED WASHOUT

STRUCTURE UNTIL STRUCTURE IS REMOVED.

THIS METHOD OF INLET PROTECTION IS APPLICABLE WHERE

HEAVY CONCENTRATED FLOWS ARE EXPECTED, BUT NOT WHERE

PONDING AROUND THE STRUCTURE MIGHT CAUSE EXCESSIVE

INCONVENIENCE OR DAMAGE TO ADJACENT STRUCTURES AND

UNPROTECTED AREAS.

NOTES:

THE HEIGHT OF THE SILT FENCE SHALL BE A

MINIMUM OF 16 INCHES ABOVE THE ORIGINAL

GROUND SURFACE AND SHALL NOT EXCEED

34 INCHES ABOVE GROUND ELEVATION. THE

WIRE SHALL EXTEND INTO THE TRENCH A

MINIMUM OF 2 INCHES. THE STANDARD

STRENGTH FABRIC SHALL EXTEND 8 INCHES

INTO THE TRENCH.

1. SET POSTS AND EXCAVATE A 4"x4"

TRENCH UPSLOPE ALONG THE LINE

OF POSTS.

2. STAPLE WIRE FENCING TO THE POSTS.

4. BACKFILL AND COMPACT THE

EXCAVATED SOIL.

3. ATTACH THE FILTER FABRIC TO THE

WIRE FENCE AND EXTEND IT INTO THE

TRENCH.

EXTENSION OF FABRIC AND

WIRE INTO THE TRENCH

FILTER CLOTH

(OPTIONAL)

VDOT # 1

COARSE AGGREGATE

2" TO 3" STONE

NOTES:

THE CONTRACTOR SHALL UTILIZE SWEEPER TRUCK TO CLEAN ADJACENT ROADWAYS

IMPACTED BY THE CONSTRUCTION ACTIVITY ON A DAILY BASIS OR AS DIRECTED BY THE

CONTRACTING OFFICER.

RUNOFF WATER

WITH SEDIMENT

IN DIA.

STEEL WIRE

IN DIA.

STEEL WIRE

STAPLES (2

PER BALE)

IMPERMEABLE

SHEETING

BINDING

WIRE

STRAW

BALE (TYP.)

IMPERMEABLE

SHEETING

WOOD OR

METAL STAKES

(2 PER BALE)

NOTE:

CAN BE TWO STACKED BALES OF PARTIALLY

EXCAVATED TO REACH 3 FT DEPTH.

4"

2"

STRAW BALE

(TYP.)

10' (TYP.)

NTS

WASHOUT STRUCTURE WITH STRAW BALES

10' (TYP.)

SEE FOR DESCRIPTION, INSPECTION, AND MAINTENANCE

ES1.05A

SEE FOR DESCRIPTION, INSPECTION, AND MAINTENANCE

ES1.05A

SEE FOR DESCRIPTION, INSPECTION, AND MAINTENANCE

ES1.05B

SEE FOR DESCRIPTION, INSPECTION, AND MAINTENANCE

ES1.05B

NTS

TREE PROTECTION DEVICE

SEE FOR DESCRIPTION, INSPECTION, AND MAINTENANCE

ES1.05B

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VESCH STD & SPEC. 3.02 GRAVEL CONSTRUCTION ENTRANCE DESCRIPTION, INSPECTION, AND MAINTENANCE

VESCH STD & SPEC. 3.05 SILT FENCE DESCRIPTION, INSPECTION, AND MAINTENANCE

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VESCH STD & SPEC. 3.20 CHECK DAM DESCRIPTION, INSPECTION, AND MAINTENANCE

VESCH STD & SPEC. 3.05 GRAVEL AND WIRE MESH DROP INLET SEDIMENT FILTER DESCRIPTION, INSPECTION, AND MAINTENANCE

VESCH STD & SPEC. 3.38 TREE PROTECTION DESCRIPTION, INSPECTION, AND MAINTENANCE

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VESCH STD & SPEC. 3.31 TEMPORARY SEEDING DETAILS

VESCH STD & SPEC. 3.35 MULCHING DETAILS

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VESCH STD & SPEC. 3.32 PERMANENT SEEDING DETAILS