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Home My WebLink About12090005.5GRADING PLAN ' t Y r t� �y C5 EROSION CONTROL PLAN PROPOSED SILT FENCE (TYP.) . 4v� * .\ t °• 5 Y 0 F GRADING PLAN LEGEND J ETC 800.50 PROPOSED TOP OF CURB 800.00 PROPOSED GRADE P 800.00 PROPOSED EDGE OF PAVEMENT'0 MEG TW 800.0 PROPOSED TOP OF WALL MATCH EXISTING GRADE BW 800.0 PROPOSED BOTTOM OF WALL INSERT (BAG) CURB INLET PROTECTION WITH CURB FILTER GRADING AND EROSION CONTROL PLAN NOTES 1. ALL GRADES AT BOUNDARY SHALL MEET EXISTING GRADES. 2. EXISTING UTILITY LOCATIONS ARE APPROXIMATE, CONTRACTOR TO FIELD VERIFY HORIZONTAL AND VERTICAL LOCATIONS PRIOR TO MAJOR EARTHWORK, WITHIN THE PROPOSED CONSTRUCTION LIMITS. 3. ANY DISCREPANCIES OR CONFLICTS WHICH BECOME APPARENT BEFORE OR DURING CONSTRUCTION SHALL BE BROUGHT TO THE ATTENTION OF THE DESIGN ENGINEER PRIOR TO CONSTRUCTION SO THAT CLARIFICATION OR REDESIGN MAY OCCUR. 4. SILT FENCES SHALL BE UTILIZED TO CONTROL EROSION. 5. SILT FENCE BARRIER TO BE INSTALLED PRIOR TO CONSTRUCTION. 6. EROSION CONTROL MEASURES TO BE MAINTAINED THROUGHOUT THE ENTIRE CONSTRUCTION PROCESS. 7. EROSION CONTROL MAINTENANCE — SITE TO BE INSPECTED AT LEAST ONCE A WEEK AND MAKE REPAIRS IMMEDIATELY AFTER PERIODS OF RAINFALL. STEP 1: EXCAVATE A 4" X B" DEEP TRENCH 8. 4 STEP 2: 2" X 2" HARDWOOD POST NON —WOVEN HEAVY DUTY GEOTEXTILE FABRIC STEP 3: NON —WOVEN HEAVY GEOTEXTILE FABRIC ON DOWN 2" X 2" HARDWOOD POST SLOPE AND BOTTOM OF TRFNCH COMPACTED FILL- 4 "1 1 1,8" k* V I 1. Lay out the location of the fence so that it is parallel to the contour of the slope and at least 10 feet beyond the toe of the slope to provide a sediment storage area. Turn the ends of the fence up slope such that the point of contact between the ground and the bottom of the fence end terminates at o higher elevation than the top of the fence at its lowest point. 2. Excavate on eight —inch deep by four —inch wide trench along the entire length of the fence line. Installation by plowing is also acceptable. 3. Install the silt fence with the filter fabric located on the up —slope side of the excavated trench and the support posts on the down —slope side of the trench. 4. Drive the support posts at least 18 inches into the ground, tightly stretching the fabric between the posts as each is driven into the soil. A minimum of 12 inches of the filter fabric should extend into the trench. 5. Loy the lower four inches of filter fabric on the bottom of the trench and extend it toward the up —slope side of the trench. 6. Backfill the trench with soil material and compact it in place. Notes If the silt fence is being constructed on —site, attach the filter fabric to the support posts and attach wooden lathe to secure the fabric to the posts. Allow for at least 12 inches of fabric below ground level. Complete the silt fence installation, following steps 1 through 6 above. Mehtenari er • Inspect within 24 hours of a rain event and at least once every seven calendar days. • If fence fabric tears, starts to decompose, or in any way becomes ineffective, replace the affected portion immediately. Notes AI r•pelm eho M meet epec0catl0w as ou&wd wAM ft measire. • Remove deposited sediment when it is causing the filter fabric to bulge or when it reaches one —half the height of the fence at its lowest point. When contributing drainage area has been stabilized, remove the fence and sediment deposits, grade the site to blend with the surrounding area, and stabilize. SILT FENCE BARRIER INSTALLATION NO SCALE SILT FENCE BARRIER SOIL OR GRASS STRIP STONE BAGS OVERLAPPED ON TO CURB 3' MIN. St�� bo95 \o CAp a o5 ° SeN SILT FENCE BARRIER rl�j SOIL OR CRASS STRIP —,, BAGS OF GRAVEL OR INDOT CA NO. 5 WASHED AGGREGRATE INLET IN SLOPE GRADE STACK 1 TO 3 LAYERS (AS NECESSARY) BAGS OF GRAVEL OR INDOT CA NO. 5 WASHED AGGREGRATE INLET IN DEPRESSION U (SUMP) POSITION 1. Fill bags approximately one half full with washed gravel or aggregate. 2. Upslope of the inlet, lay the bogs tightly in a row curving upslope from the and away from the curb. 3. Overlap bogs onto the curb, and extend it a minimum of 3 ft. into the street to intercept the runoff. 4.If using more than one layer, overlap the bogs with the row beneath, and leave a one —bag gap in the middle of the top row to serve as a spillway. 5. For additional storage capacity, contruct o series of stone bag barriers along the curb so each one traps small amounts of sediment. 6. Place sill fence barrier one foot behind inlet. see silt fence barrier detoil for installation. 7. For inlets located in a depressional (sump) position A. Place bags in on arc around the curb inlet. B. Overlap bags onto the curb, keeping bogs tightly abutted together. For additional layers of bags, overlap the bags with the row beneath and leave o one —bag gap (at or below curb height) in the middle of the top row to serve as a spillway. If the spillway height is higher than the top of the curb, place additional bogs along the curb to prevent bypass flow. 8. Place a traffic barricade at each installed measure for safety and to protect measure integrity. k%wenmew • Inspect doily. • Remove occumulated sediment from paved area (do not flush with water) after each storm event. Deposit sediment in on area where it will not re —enter the paved area or storm drains. • Inspect for damage by vehicular traffic and repair if needed. • When the contributing drainage areas hove been stabilized, remove inlet protection. STONE BAG CURB INLET PROTECTION NO SCALE (WHERE PERMITTED) CERTIFIED BY: " `' ,os e PE 1111 STATE Date 9/4/ COVE RADING & ERO PLA Know wl 811 1- hOR CALLS IN INDIANA Drawn By KLE CYR SMV Checked By KYLE CYR Quality ASSUriff.0 CHRIS WMAAN Scale:0 S a� Q Sheet C 3 CZ Date,