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Home My WebLink AboutC.503 Erosion Control DetailsU 3 0 0 U w 0 0 0 U I 0 L0 0 U w U LO 0 0 0 w Z Q J J_ V) U Z a 0 rn cD L0 0 M 0 i w J_ LL_ 0 Z a 0 J LL LL w F- U) r M 0 Ld 0 w a 00 N I Ld Q 0 M Ld W �7: LO - ww I.- J aQ 0 U V) Z� Z 0 J PROVIDE CROSS BRACING WHEN NECESSARY WOOD, METAL, OR SYNTHETIC FRAME ----- - - - - -- �• � � Ilh jlllllljlllllljlll ■11��1 ■ ■ ■ ■ ■ ■ ■� ■! ■111 ■1 �11111111g111� ,,,,11111!11! ■I ■ ■ ■ ■!!!! ■! ■111!1 1j�IOi��l1� 111 ■I��I ■ ■ ■ ■! ■ ■ ■ ■■ ■111 ■1 - �uu: :•uu :)111 ■I■�■■�� ■ ■ ■ ■ ■ ■!■ ■111 ■1 �� ,�;..;;� IIII ■I��:�� \ ■ ■ ■!! ■111!1 i� ,= ,��;.:.',IIII ■1��5�� ■ ■■ ■111 ■1 ,,��ii�'1111lIC�� \111 ■1 ► � l/ 1 BURIED GEOTEXTILE FABRIC. 4oz. MIN. INLET BURIED GEOTEXTILE FABRIC. 4oz. MIN. COMPACTED FILL SECTI ON 1: ► ■ DUAIL SILT FENCE INLET PROTECTION NOT • SCALE Inlet Protection Inspection and Maintenance 1. Inspect BMPs prior to forecast rain, daily during extended rain events, after rain events, weekly during the rainy season, and at two -week intervals during the non -rainy season. 2. Filter Fabric Fences. If the fabric becomes clogged, torn, or degrades, it should be replaced. Make sure the stakes are securely driven in the ground and are in good shape (i.e., not bent, cracked, or splintered, and are reasonably perpendicular to the ground). Replace damaged stakes. 3. Gravel Filters. If the gravel becomes clogged with sediment, it must be carefully removed from the inlet and either cleaned or replaced. Since cleaning gravel at a construction site may be difficult, consider using the sediment -laden stone as fill material and put fresh stone around the inlet. Inspect bags for holes, gashes, and snags, and replace bags as needed. Check gravel bags for proper arrangement and displacement. 4. Sediment that accumulates in the BMP must be periodically removed in order to maintain BMP effectiveness. Sediment should be removed when the sediment accumulation reaches one -third of the barrier height. Sediment removed during maintenance may be incorporated into earthwork on the site ore disposed at an appropriate location. 5. Remove storm drain inlet protection once the drainage area is stabilized. 6. Clean and regrade area around the inlet and clean the inside of the storm drain inlet as it must be free of sediment and debris at the time of final inspection. - MANAGEABLE 2 FOOT CONTAINMENT AREA DANDY SACK'" i STRAPS PS OVERFLOW STORM PORTS GRATE DUMPING REINFC STRAPS CORN -STORM INLET MA cot DETAIL OF INLET SEDIMENT CONTROL DEVICE DANDY CURB SACK'" URB LTER OPTIONAL OUTFLOW PORTS MPING RAPS DETAIL OF INLET SEDIMENT CONTROL DEVICE WITH CURB FILTER DROP -IN INLET PROTECTION SANDBAG 10 MIL PLASTIC _O LINING I II I =1 i _ I=I1 11= '7 �1 SECTION A -A LATH & FLAGGING ON ALL SIDES 10' ( MIN. ) 1 ❑ w it Q ❑ SANDBAG (TYP) A � A ID Io ❑ ❑ ❑ ❑ '111 10 MIL PLASTIC LINING CONCRETE TRUCK WASH OUT DETAIL NOT TO SCALE 1. LOCATE WASH OUT AREA AT LEAST 50 FEET FROM STORM DRAINS, OPEN DITCHES, OR BODIES OF WATER. DO NOT ALLOW RUNOFF FROM THIS AREA BY CONSTRUCTING A TEMPORARY PIT OR BERMED AREA LARGE ENOUGH FOR LIQUID AND SOLID WASTE. 2. TEMPORARY WASH OUT FACILITIES SHOULD HAVE A TEMPORARY PIT AREA OF SUFFICIENT VOLUME TO COMPLETELY CONTAIN ALL LIQUID AND SOLID WASTE CONCRETE MATERIALS GENERATED DURING WASH OUT PROCEDURES. 3. ONLY CONCRETE FROM MIXER TRUCK CHUTES SHOULD BE WASHED INTO WASH OUT PIT. 4. PLASTIC LINING MATERIAL SHOULD BE A MINIMUM OF 10 MIL POLYETHYLENE SHEETING AND SHOULD BE FREE OF HOLES, TEARS, OR OTHER DEFECTS THAT COMPROMISE THE IMPERMEABILITY OF THE MATERIAL. 5. THE CONCRETE WASHOUT AREA SHALL BE INSPECTED DAILY FOR PUNCTURES OR TEARS IN THE PLASTIC LINER. THE LINER SHALL BE REPLACED UPON REMOVAL OF HARDENED CONCRETE. 6. TEMPORARY CONCRETE WASHOUT FACILITIES SHOULD BE MAINTAINED TO PROVIDE ADEQUATE HOLDING CAPACITY WITH A MINIMUM FREEBOARD OF 12 INCHES FOR BELOW GRADE FACILITIES. MAINTAINING TEMPORARY CONCRETE WASH OUT FACILITIES SHOULD INCLUDE REMOVING AND DISPOSING OF HARDENED CONCRETE AND RETURNING THE FACILITY TO A FUNCTIONAL CONDITION. HARDENED CONCRETE MATERIALS SHOULD BE REMOVED AND DISPOSED OF. IN ACCORDANCE WITH LOCAL STANDARDS. 7. CONCRETE WASHOUT AREAS SHALL BE CLEARLY MARKED WITH LATH & FLAGGING AND A SIGN POSTED AND LABELED "CONCRETE WASHOUT". LATH AND FLAGGING SHOULD BE COMMERCIAL TYPE. 8. THE CONCRETE WASH OUT AREA SHALL BE REPAIRED AND /OR ENLARGED AS NECESSARY TO MAINTAIN CAPACITY FOR WASTED CONCRETE. 9. WASHOUT FACILTIES MUST BE CLEANED, OR NEW FACILITIES MUST BE CONSTRUCTED AND READY FOR USE ONCE THE WASHOUT IS 759 FULL. 10. AT THE END OF CONSTRUCTION, ALL CONCRETE SHALL BE REMOVED FROM THE SITE AND LEGALLY DISPOSED OF AT AN APPROVED SITE STEEL FRAME OVERFLOW FEATURE HANDLES Im. FOR EAS Y REMOVAL �r�'� STAINLESS STEEL BAND r,f?' (HEMMED INTO BAG) POLYESTER MESH' ' ;' "' POLYPROPYLENE REINFORCEMENT GEOTTXFILTER FABRIC (OUTER LAYER) (INNER LAYER) q 000O0OD00O0UDDO00° 0000 0 0 0 0 0 0 0 0 0 0 0 0 ** CONTRACTOR TO USE CATCH -ALL STORMWATER INLET PROTECTOR, DANDY BAG OR APPROVED ALTERNATE. FWOOD POST EDSILT FENCE SILT FENCE POST- WRAPPING DETAIL NOT TO SCALE i STABILIZATION PRACTICE WIRE FEB. 1 U MAY JUNE FILTER FABRIC UWOOD POST OCT. FLOW 1 ��1 PERMANENT SEEDING NOTE: POSTS SHALL HAVE A MINIMUM LENGTH OF 36 INCHES PLUS BURIAL DEPTH. POST MATERIAL - I` - - SHALL BE WOOD, STEEL, OR SYNTHETIC, AND SHALL _ _ :• ' ' -1 BE OF SUFFICIENT STRENGTH TO RESIST DAMAGE I I -III �� I I DURING INSTALLATION AND TO SUPPORT APPLIED :711 B -III - LOADS. I 1 III N -I B FABRIC SHALL BE A WOVEN GEOTEXTILE FABRIC -I III- CONSISTING OF STRONG, ROT RESISTANT, MATERIALS RESISTANT TO DETERIORATION FROM EXTEND D FABRIC & -III- C ULTRAVIOLET AND HEAT EXPOSURE. 4 BELOW =� I I- I - (- /// D SURFACE -I SILT FENCE CONSTRUCTION NOT TO SCALE SILT FENCE INSTALLATION REQUIREMENTS SITE PREPARATION 1. PLAN FOR THE FENCE TO BE AT LEAST 10 ft. FROM THE TOE OF THE SLOPE TO PROVIDE A SEDIMENT STORAGE AREA. 2. PROVIDE ACCESS TO THE AREA IF SEDIMENT CLEANOUT WILL BE NEEDED. FENCE CONSTRUCTION 1. ALONG THE ENTIRE INTENDED FENCE UNE, DIG AN 8 in. DEEP FLAT - BOTTOMED OR V- SHAPED TRENCH. 2. ON THE DOWNSIDE SLOPE OF THE TRENCH, DRIVE THE WOOD OR STEEL SUPPORT POSTS AT LEAST 1 ft. INTO THE GROUND, SPACING THEM NO MORE THAN 8 ft. APART IF THE FENCE IS SUPPORTED BY WIRE OR 6 ft. IF EXTRA - STRENGTH FABRIC IS USED WITHOUT SUPPORT WIRE. ADJUST SPACING, IF NECESSARY, TO ENSURE THAT POSTS ARE SET AT THE LOW POINTS ALONF THE FENCE UNE. (NOTE: IF THE FENCE HAS PRE - ATTACHED POSTS OR STAKES, DRIVE THEM DEEP ENOUGH SO THE FABRIC IS SATISFACTORILY IN THE TRENCH AS DESCRIBED IN STEP 6). 3. FASTEN SUPPORT WIRE FENCE (IF THE MANUFACTUER RECOMMENDS ITS USE) TO THE UPSLOPE SIDE OF THE POSTS, EXTENDING IT 8 in. INTO THE TRENCH. 4. RUN A CONTINUOUS LENGTH OF GEOTEXTILE FABRIC IN FRONT ( UPSLOPE) OF THE SUPPORT WIRE AND POSTS, AVOIDING JOINTS, PARTICULARLY AT LOW POINTS IN THE FENCE UNE. 5. IF A JOINT IS NECESSARY, NAIL THE OVERLAP TO THE NEAREST POST WITH LATH. 6. PLACE THE BOTTOM 1 ft. OF FABRIC IN THE 8 in. DEEP TRENCH, EXTENDING THE REMAING 4 in. TOWARD THE UPSLOPE SIDE. 7. BACKFILL THE TRENCH WITH COMPACTED EARTH OR GRAVEL. NOTE: IF USING A PRE - PACKED COMMERCIAL SILT FENCE RATHER THAN CONSTRUCTING ONE, FOLLOW MANUFACTURER'S INSTALLATION INSTRUCTIONS. SILT FENCE MAINTENANCE REQUIREMENTS 1. INSPECT THE SILT FENCE PERIODICALLY AND AFTER EACH STORM EVENT. 2. IF FABRIC TEARS, STARTS TO DECOMPOSE, OR IN ANY WAY BECOMES INEFFECTIVE, REPLACE THE AFFECTED PORTION IMMEDIATELY. 3. REMOVE DEPOSITED SEDIMENT WHEN IT REACHES HALF THE HEIGHT OF THE FENCE AT ITS LOWEST POINT OR IS CAUSING THE FABRIC TO BULGE. 4. TAKE CARE TO AVOID UNDERMINING THE FENCE DURING CLEAN OUT. 5. AFTER THE CONTRIBUTING DRAINAGE AREA HAS BEEN STABILIZED REMOVE THE FENCE AND SEDIMENT DEPOSITS, BRING THE DISTURBED AREA TO GRADE, AND STABILIZE. OUTLET CONSTRUCTION (OPTIONAL) 1. DETERMINE THE APPROPRIATE LOCATION FOR A REINFORCED, STABILIZED BYPASS FLOW OUTLET (UNLESS THE FENCE IS DESIGNED TO RETAIN ALL RUNOFF FROM A 2 YEAR FREQUENCY, 24 HR DURATION STORM EVENT) 2. SET THE OUTLET ELEVATION SO THAT WATER DEPTH CANNOT EXCEED 1 ft. AT THE LOWEST POINT ALONG THE FENCE UNE. 3. LOCATE THE OUTLET WEIR SUPPORT POSTS NO MORE THAN 4 ft. APART, AND INSTALL A HORIZONTAL BRACE BETWEEN THEM. (WEIR HEIGHT SHOULD BE NO MORE THAN 1 ft. DEEP, 5 ft. WIDE, AND 10 ft. LONG ON LEVEL GRADE. 4. EXCAVATE THE FOUNDATION FOR THE OUTLET SPLASH PAD TO MINIMUMS OF 1 ft. AND WATER DEPTH NO MORE THAN 16 ft. ANYWHERE ELSE ALONG THE FENCE.) 5. FILL THE EXCAVATED FOUNDATION WITH INDOT N0, 1 STONE, BEING CAREFUL THAT THE FINISHED SURFACE BLENDS WITH THE SURROUNDING AREA, ALLOWING NO OVERFILL 6. STABILIZE THE AREA AROUND THE PAD. SEASONAL SOIL PROTECTION CHART STABILIZATION PRACTICE JAN. FEB. MAR. APR. MAY JUNE JULY AUG. SEPT. OCT. NOV. DEC. PERMANENT SEEDING DORMANT SEEDING B B TEMPORARY SEEDING C */ / / / /I/ /// D E A = KENTUCKY BLUEGRASS 100 LBS. /ACRE; CREEPING RED FESCUE 100 LBS. /ACRE; HYDROSEEDED B = KENTUCKY BLUEGRASS 120 LBS. /ACRE; CREEPING RED FESCUE 120 LBS. /ACRE; HYDROSEEDED C = SPRING OATS 3 BUSHELS /ACRE D = WHEAT OR RYE 2 BUSHELS /ACRE E = ANNUAL RYEGRASS 40 LBS. /ACRE ( 1 LB /1000 SQ. FT. ) * /I /* = IRRIGATION NEEDED DURING JUNE, JULY, AUGUST AND /OR SEPTEMBER O N N U M O �IO�.0 fn N Lq Q to N Z Z M v Ji QOLL N 0 U) Q n Nco Fn CD Z LO �Z`n co J W H U Z W F- z� Q LdU L a i NONE ■NOMEN 14 o Gp� I CERTIFIED BY J W 2 Q V LL v O� JN N � '~ LLI �y C* M Z .m N Z a > >� N>Z WE Z a N JI >- j ZZ2 JZ= LU Wav 4C 44 X OZ C* Z a Q X F J a LV Z DATE: 05/17/2013 DRAWN BY: JCS CHWD BY: RLN JOB NO. 2013.00569 REVISIONS EROSION CONTROL DETAILS SHEET NO. C ■503 OF