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8" MIN. INDOT GRADATION No. 2
CRUSHED STONE
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TEMPORARY GRAVEL CONSTRUCTION ENTRANCE INSTALLATION REQUIREMENTS
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1. AVOID LOCATING ON STEEP SLOPES OR AT CURVES IN PUBLIC ROADS.
2. REMOVE ALL VEGETATION AND OTHER OBJECTIONABLE MATERIAL FROM THE FOUNDATION AREA,
AND GRADE AND CROWN FOR POSITIVE DRAINAGE.
3. IF SLOPE TOWARDS THE ROAD EXCEEDS 2%, CONSTRUCT A 6 -8 in. HIGH WATER BAR (RIDGE)
WITH 3:1 SIDE SLOPES ACROSS THE FOUNDATION AREA ABOUT 15 ft. FROM THE ENTRANCE TO DIVERT
RUNOFF AWAY FROM THE ROAD.
4. INSTALL PIPE UNDER THE PAD IF NEEDED TO MAINTAIN PROPER PUBLIC ROAD DRAINAGE.
5. IF WET CONDITIONS ARE ANTICIPATED, PLACE GEOTEXTILE FABRIC ON THE GRADED FOUNDATION TO
IMPROVE STABILITY.
6. PLACE STONE TO DIMENSIONS AND GRADE SHOWN IN THE EROSION /SEDIMENT CONTROL PLAN, LEAVING
THE SURFACE SMOOTH AND SLOPED FOR DRAINAGE.
7. DIVERT ALL SURFACE RUNOFF AND DRAINAGE FROM THE STONE PAD TO A SEDIMENT TRAP OR BASIN.
TEMPORARY GRAVEL CONSTRUCTION ENTRANCE MAINTENANCE REQUIREMENTS
1. INSPECT ENTRANCE PAD AND SEDIMENT AREA WEEKLY AND AFTER STORM EVENTS OF HEAVY USE.
2. RESHAPE PAD AS NEEDED FOR DRAINAGE AND RUNOFF CONTROL.
3. TOP DRESS WITH CLEAN STONE AS NEEDED.
4. IMMEDIATELY REMOVE MUD AND SEDIMENT TRACKED OR WASHED ONTO PUBLIC ROADS BY BRUSHING
OR SWEEPING. FLUSHING SHOULD ONLY BE USED IF THE WATER IS CONVEYED INTO A SEDIMENT
ROCK TRAP OR BASIN.
5. REPAIR ANY BROKEN PAVEMENT IMMEDIATELY.
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I SECT •
FILTER FABRIC
STORM PIPE
NO OVERFALL
NOTES:
1. FOUNDATION SHALL BE GEOTEXTILE FABRIC FOR STABILIZATION AND
WELL- GRADED FILTRATION OR GRAVEL FILTER LAYER AT LEAST 6 IN. THICK
2. STONE SHALL BE HARD, ANGULAR, AND HIGHLY WEATHER- RESISTANT RIPRAP STONE
AT A THICKNESS OF 12 IN. MINIMUM OR TWO TIMES THE STONE DIAMETER, WHICHEVER
IS GREATER.
3. MAKE SURE THE TOP OF THE RIPRAP APRON IS LEVEL WITH OR SLIGHTLY BELOW
THE RECEIVING STREAM. ( RIPRAP SHOULD NOT RESTRICT THE CHANNEL OR PRODUCE
AN OVERFALL).
NOT • SCALE
PLAN
TOP OF DA 4" EMERGENCY
OVERFLOW WEIR
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#1 STONE 1 I II I I
MAINTENANCE:
SECTION A- A
1. INSPECT THE STRUCTURE AFTER EACH STORM EVENT, REMOVING
SEDIMENT AND MAKING NEEDED REPAIRS IMMEDIATELY.
2. WHEN THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZES,
REMOVE AND PROPERLY DISPOSE OF ANY UNSTABLE SEDIMENT
AND CONSTRUCTION MATERIAL, AND RE- STABILIZE.
ROCK DONUT DETAIL
NOT TO SCALE
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REVISIONS
EROSION
CONTROL
DETAILS
SHEET NO.
C.504
OF
DATE: 05/17/2013
DRAWN BY: Jcs
CHK'D BY: RLN
JOB N0. 2013.00569