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Home My WebLink AboutRD-243-11a 1. PREPARE SOIL BEFORE INSTALLING GEOTEXTILE FABRIC.. 2.. BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE GEOTEXTILE FABRIC IN A 6" WIDE TRENCH WITH APPROXIMATELY 12" OF GEOTEXTILE FABRIC EXTENDED BEYOND THE UP -SLOPE PORTION OF THE TRENCH. ANCHOR THE GEOTEXTILE FABRIC WITH A ROW OF STAPLES /STAKES APPROXIMATELY 12" APART IN THE BOTTOM OF THE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. APPLY STONE TO PREPARED SOIL AND FOLD REMAINING 12" PORTION OF GEOTEXTILE FABRIC BACK OVER STONE. SECURE GEOTEXTILE FABRIC OVER SOIL WITH A ROW OF STAPLES /STAKES SPACED APPROXIMATELY 12" ACROSS THE .WIDTH OF THE GEOTEXTILE FABRIC. 3. ROLL THE GEOTEXTILE FABRIC DOWN ACROSS THE SLOPE. GEOTEXTILE FABRIC WILL UNROLL WITH APPROPRIATE SIDE AGAINST THE SOIL SURFACE. ALL GEOTEXTILE FABRIC MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES /STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN DETAIL. 4. WHEN USING. THE STAPLE PATTERN DETAIL, STAPLES /STAKES SHOULD BE PLACED THROUGH EACH OF THE CIRCLES CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN. 5. THE EDGES OF PARALLEL GEOTEXTILE FABRIC MUST BE STAPLED WITH APPROXIMATELY 2 " -5" OVERLAP DEPENDING ON GEOTEXTILE FABRIC TYPE. TO ENSURE PROPER SEAM ALIGNMENT, PLACE THE EDGE OF THE OVERLAPPING GEOTEXTILE FABRIC ( GEOTEXTILE FABRIC BEING INSTALLED ON TOP) EVEN WITH THE SEAM STITCH ON THE PREVIOUSLY INSTALLED GEOTEXTILE FABRIC. 6. CONSECUTIVE GEOTEXTILE FABRIC SPLICED DOWN THE SLOPE MUST BE PLACED END OVER END (SHINGLE STYLE) WITH AN APPROPRIATE 3" OVERLAP. STAPLE THROUGH OVERLAPPED AREA, APPROXIMATELY 12" APART ACROSS ENTIRE GEOTEXTILE FABRIC WIDTH. 7. GEOTEXTILE FABRIC SHALL BE INSTALLED FOLLOWING MANUFACTURERS SPECIFICATIONS. TYPICAL FABRIC /BLANKET /GEOGRID INSTALLATION DETAIL NOT TO SCALE SEED AT SURFACE UNDER 0' -6" MIN. BRUSH IN LAYER OF SEED MIX EROSION FABRIC AND TOPSOIL INTO EROSION CONTROL BLANKET 1" TOP SOIL 2:1 MAX 5" TOP SOIL IF T TIE EROSION FABRIC INTO 6" MIN EXISTING SLOPE „ \, V 1 TOP SOIL AND SEED SECTION BANK SLOPES TO BE REINFORCED WITH NORTH AMERICAN GREEN S150BN HYDRO -SEED AT SURFACE SHORT -TERM EROSION CONTROL ON TOP OF 0' -6" MIN. BLANKET OR APPROVED EQUAL EROSION CONTROL BLANKET (INSTALL FABRIC PER MANUFACTURERS I SPECIFICATIONS USE STAPLE PATTERN) L 2:1 MAX 2" HYDROSEED__g� Sat T,pX 4" TOP SOIL 6" MIN 1 VEGETATIVE SUPPORT _/ % j/ j/ j/ LAYER UNDER EROSION CONTROL BLANKET HYRDO -SEED & TOP SOIL SECTION TYPICAL SLOPE SURFACE TREATMENT DETAIL NOT TO SCALE TYPICAL SLOPE SURFACE TREATMENT (SEE DETAIL) EROSION CONTROL BLANKET STAPLED AS SPECIFIED AND STAKED WITH WOOD OR LIVE STAKES INSTALL NATIVE WETLAND SHRUBS (TYP.) EVENLY SPACED EVERY 4 –FEET LIVE BRUSH CUTTINGS SANDWICHED 1.5 BETWEEN EROSION CONTROL BLANKET INSTALL PLANT PLUGS (TYP.) I \ EVENLY SPACED EVERY 4 —FEET EXTENDED —TERM EROSION CONTROL BLANKET TOED UNDER r ¢Y COMPACTED SOIL " GEOGRID WRAPPED AROUND EACH COMPOST SOCK AND ANCHORED 8" DIA. PRE — SEEDED COMPOST SOCK (TYP.) / STREAM 7 DEPTH 12" THICK LOAM / VEGETATIVE SUPPORT MATERIAL COVERED BY SHORT —TERM EROSION CONTROL BLANKET EXTENDED —TERM EROSION CONTROL BLANKET STAPLED AS SPECIFIED AND STAKED WITH WOOD (EMBED INTO EXISTING GROUND) COMPACTED BACKFILL INSTALLED 12" BELOW FINAL GRADES �r 4° THICK LOAM / VEGFTATIVF SUPPORT MATERIAL FOR BRUSH CUTTINGS SANDWICHED BETWEEN EROSION CONTROL BLANKET LAYERS 12" THICK COMPACTED BACKFILL SANDWICHED BETWEEN EROSION CONTROL BLANKET FOR SLOPE BENCHES FIRM COMPACTED /UNDISTURBED SUBGRADE �F GEOGRID TOED UNDER EACH COMPOST SOCK, EXTENDED MIN. NOTE: LIVE WILLOW STAKES SHALL NOT BE USED 3 —FT AND STAPLED IN PLACE IN THE VICINITY OF THE EXISTING SEWER MAIN. ExlsnNC STREAMBED COMPACTED SOIL LIFT BANK STABILIZATION DETAIL NOT TO SCALE PRE– SEEDED COMPOST SOCK GEOGRID WRAPPED AROUND EACH COMPOST SOCK AND ANCHORED WITH STAPLES PLANT PLUG EVENLY SPACED EVERY 4 –FEET ALTERNATING WITH ADJACENT COMPOST SOCK PLUG PLACEMENT ICAL PLANT PLUG INSTALLATION DETAIL NOT TO SCALE 2 " -5" 2 " -5„ f 3 I SEAM 6' L I I I 1 STAPLE PER SQ. YD. STAPLE PATTERN DETAIL NOT TO SCALE j PRIVATE HOMEOWNER WALKWAY. (SEE CONCRETE WALKWAY DETAIL) EXISTING TYPICAL SLOPE SURFACE TREATMENT PRIVATE RESIDENCE 4" THICK LAYER (SEE DETAIL) CRUSHED STONE ANCHOR CONTINUOUS RUN OF GEOGRID BENEATH COMPOST SOCK _ _ _ ELEV. 4 - . INSTALL PLANT PLUGS�TYP.] EVENLY SPACED EVERY 4 -FEET GABION BOX BASKETS FILLED WITH RIPRAP 4 1 AND PRE- SEEDED 8 -INCH COMPOST SOCKS a �1 GEOGRID WRAPPED AROUND EACH COMPOST SOCK AND ANCHORED BETWEEN GABIONS, GEOGRID STAPLED AS SPECIFIED STAPLED IN PLACE FILTER FABRIC 12 -INCH DIA. PRE- SEEDED COMPOST SOCK (TYP.) DEPTH ELE V. 208.00 EXISTING STREAMBED FILL VOIDS BETWEEN COMPOST SOCKS AND FILTER FABRIC / GEOGRID WITH VEGETATIVE SUPPORT MATERIAL EMBED GABION BOX BASKET 3 -FT W x 1.5 -FT H (TYP.) 2 "X2° WOODEN STAKE IT MIN, COMPOST FILTER SOCK PLACED ON THE —� CONTOUR COMPOST SOCK CONTINUES REPEAT PLUGS 2,_3" 12" COMPOST FILTER SOCK SECTION STAKE ON Flow 10' LINEAL SPACING Upslope OVERLAP b SECTIONS Downslope 1 COMPOST FILTER SOCK "MIN. PLACED ON THE CONTOUR PLAN VIEW TYPICAL EROSION CONTROL DETAIL NOT TO SCALE GEOTEXTILE FILTER FABRIC (ANCHORED) FIRM SUBGRADE BANK SLOPES TO BE REINFORCED WITH NORTH AMERICAN GREEN C125BN LONG-TERM EROSION CONTROL BLANKET OR APPROVED EQUAL NOTES 1) FINAL 5 -FEET OF UPSTREAM AND DOWNSTREAM ENDS OF COMPOST SOCKS SHALL PLACED AT A 30' ANGLE TO PREVENT END - AROUND FLOW. 2) ALWAYS INSTALL COMPOST SOCKS PERPENDICULAR TO SLOPE. SEE TYPICAL SLOPE SURFACE TREATMENT FOR TOP OF SLOPE SIZE (in) APPROX. PARTICLE WEIGHT (Ibs) % BY WEIGHT PASSING 10* FIRM COMPACTED /UNDISTURBED SUBGRADE 100 9-1/2* 80 NOTES: 7-1/2* 40 79 -84 3* 1) FINAL 1 -FOOT OF UPSTREAM AND DOWNSTREAM ENDS OF 50 -55 1/4 * - COMPOST SOCKS (NOT WITHIN GABIONS) SHALL BE BURIED .079(# 10 Mesh)** - 8 -10 INTO THE BANK TO ANCHOR THE EXPOSED ENDS. - Q Q 2) LONG -TERM EROSION CONTROL BLANKET SHALL BE EI 'rSl s (SPIREA BUMALDA) INSTALLED OVER ALL DISTURBED AREAS UPSTREAM AND o. 406D�; r DOWNSTREAM OF THE GABIONS. INSTALL PLANT PLUGS. r .. cf SEDUM SEDUM 3) PLACE FILTER FABRIC ALONG UPSTREAM AND DOWNSTREAM 18 ENDS OF GABIONS WHERE THEY WILL COME IN CONTACT WITH FILTER FABRIC SOIL 6° MIN. CRUSHED STONE SUBBASE (TYP.) 4) STAGGER ALTERNATING LAYERS /TIERS OF GABION BASKETS gar+ee >a:e';y4 SO CONSECUTIVE SEAMS DO NOT LINE UP VERTICALLY. GABION BANK STABILIZATION DETAIL NOT TO SCALE DEPTH ELE V. 208.00 EXISTING STREAMBED FILL VOIDS BETWEEN COMPOST SOCKS AND FILTER FABRIC / GEOGRID WITH VEGETATIVE SUPPORT MATERIAL EMBED GABION BOX BASKET 3 -FT W x 1.5 -FT H (TYP.) 2 "X2° WOODEN STAKE IT MIN, COMPOST FILTER SOCK PLACED ON THE —� CONTOUR COMPOST SOCK CONTINUES REPEAT PLUGS 2,_3" 12" COMPOST FILTER SOCK SECTION STAKE ON Flow 10' LINEAL SPACING Upslope OVERLAP b SECTIONS Downslope 1 COMPOST FILTER SOCK "MIN. PLACED ON THE CONTOUR PLAN VIEW TYPICAL EROSION CONTROL DETAIL NOT TO SCALE GEOTEXTILE FILTER FABRIC (ANCHORED) FIRM SUBGRADE BANK SLOPES TO BE REINFORCED WITH NORTH AMERICAN GREEN C125BN LONG-TERM EROSION CONTROL BLANKET OR APPROVED EQUAL NOTES 1) FINAL 5 -FEET OF UPSTREAM AND DOWNSTREAM ENDS OF COMPOST SOCKS SHALL PLACED AT A 30' ANGLE TO PREVENT END - AROUND FLOW. 2) ALWAYS INSTALL COMPOST SOCKS PERPENDICULAR TO SLOPE. SEE TYPICAL SLOPE SURFACE TREATMENT FOR TOP OF SLOPE SIZE (in) APPROX. PARTICLE WEIGHT (Ibs) % BY WEIGHT PASSING 10* 90 -95 100 9-1/2* 80 90 -95 7-1/2* 40 79 -84 3* 2 -3 50 -55 1/4 * - 11 -16 .079(# 10 Mesh)** - 8 -10 .033(# 20 Mesh) ** - 5 -8 * Equivalent spherical diameter ** Standard Sieve NOTES: A.) BANK ROCK SHALL BE SIZED AS SHOWN IN CULVERT CROSS - SECTION VIEWS. B.) STONES SHALL BE ROUNDED BOULDERS AND COBBLES SIMILAR TO EXISTING STREAM BED MATERIAL. C.) MATERIAL SHALL MEET THE ABOVE GRADATION, AND IS BASED ON D50= 2.5 INCHES (APPROX. 1.5 LBS.) DESIGNED STREAMBED MATERIAL PROPOSED HEADWALL EXISTING DRIVEWAY PROPOSED GUARDRAIL �11 REINSTALL DRIVEWAY EDGE OF PAVEMENT PAVERS PROPOSED CULVERT PROPOSED CATCH BASIN REVERE STREET LANDSCAPE LEGEND SYMBOL PLANT NAME SIZE QUANTITY SPACING COMMENTS NORTHERN BAYBERRY (MYRICA PENSYLVANICA) 18 " -24" 3 6' OC hia yc Uhl t Drawn By: SCS I—\ _LUn m: Checked By: MLL L/j L/! SPIREA _ 12 ^1g^ 8 3' OC ALSO KNOWN AS: EI 'rSl s (SPIREA BUMALDA) o. 406D�; ANTHONY WATERER" r .. cf SEDUM SEDUM 6" 18 V OC ALSO KNOWN AS: AUTUMN JOY- PLANT IN GROUPS OF 3 PLANTS �' r (SEDUM TELPHINUM) gar+ee >a:e';y4 PER AREA. 2 -FT OFFSET FROM ROADWAY. INSTALL PLANT PLUGS (S'MTCHGRASS - PANICUM VIRGATUM) IN VEGETATIVE SUPPORT MATERIAL BETWEEN COMPOST SOCKS AT 6 "INVERVALS BRUSH IN LAYER OF SEED MIX AND TOPSOIL INTO EROSION CONTROL. BLANKET T- O 8" DIA PRE - SEEDED COMPOST SOCK (TYR) EXISTING STREAMBED DEPTH �— LONG -TERM EROSION CONTROL BLANKET TOED UNDER COMPACTED SOIL ANCHOR COMPOST SOCKS WITH 2"X2" HARDWOOD STAKES AT 4-FGOT INTERVALS TYPICAL COMPOST SOCK SLOPE STABILIZATION DETAIL NOT TO SCALE LANDSCAPE RESTORATION DETAIL NOT TO SCALE STAPLE EROSION CONTROL BLANKET AT TOE OF SLOPE IN AREAS OF COMPOST SOCKS TO BE WRAPPED WITH UNDISTURBED STREAMBANK GEOGRID AND ANCHORED WITH STAPLES, ANCHOR EROSION SEE BANK STABILIZATION DETAILS FOR ABUT COMPOST SOCKS TIGHTLY, BACKFILL GAPS WITH VEGETATIVE CROSS- SECTION VIEWS CONTROL BLANKET BENEATH COMPACTED SUPPORT MATERIAL SOIL AT DISTURBED EXISTING STREAMBANK STREAMBANKAREAS I Ir –O INSTALL LONG -TERM EROSION BURY FINAL 1 -FOOT OF UPSTREAM AND PRE- SEEDED COMPOST SOCK CONTROL BLANKET TO TOP OF DOWNSTREAM ENDS OF COMPOST SOCKS DISTURBANCE. WITHIN BANK TO ANCHOR EXPOSED ENDS, 2" X 2" WOODEN STAKE EXTEND MIN. 5 -FT FROM BURIED END ANGLE EMBEDDED COMPOST SOCK DOWN INSTALL SECONDARY STAKE IN FRONT OF COMPOST SOCK BANK STABILIZATION - COMPOST SOCK INSTALLATION TYPICAL DETAIL NOT TO SCALE NOTES No.I Revision /Issue I Date COMPREHENSIVE ENVIRONMENTAL INCORPORATED 225 CEDAR HILL ST. MARLBOROUGH, MA 01752 REVERE STREET & MINUTEMAN BIIKEWAY CULVERT REPLACEMENT GENERAL DETAILS Town of Lexington, MA .4 No.: 228 -4 Sheet ,.� ' "OF'4 '3! rDoTt.:FEE3RUARY 2015 S " hia yc Uhl t Drawn By: SCS I—\ _LUn m: Checked By: MLL L/j L/! �4 II i + Scale: AS SHOWN o. 406D�; ✓_ rc a gar+ee >a:e';y4 .4