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9 ASTM D3034 PIPE SIZE INCHES SDR 35 SDR 26 BASE MANDREL RING BASE MANDREL RING A INSIDE OUTSIDE OUTSIDE B INSIDE OUTSIDE OUTSIDE DIAMETER DIAMETER DIAMETER DIAMETER DIAMETER DIAMETER INCHES INCHES INCHES INCHES INCHES INCHES INCHES INCHES B INCHES " NOTES: 1. MANDREL OUTSIDE DIAMETER = BASE INSIDE DIAMETER X "B" DIMENSION FOR 6" PIPE IS FOR 1" NPS PIPE. 3. "B" DIMENSION FOR 8", 10", 12", 15" PIPE IS FOR 1 1 4" NPS PIPE. 4. ADJUST "B" DIMENSION AS REQUIRED FOR OTHER PIPE SIZES. SEE NOTES ABOVE 1 2" TRIM ENDS OF ANGLES TO FIT 1 2" " MANDREL O.D. SIZE STAMP (MIN. 1 4" HIGH LETTERS) WELD TOGETHER RING O.D. GO, NO-GO 5% DEFLECTION TESTING MANDREL FOR FEXIBLE SEWER PIPE NO SCALE WATER METER PLUG REDUCED PRESSURE ZONE (RPZ) BACKFLOW PREVENTER PLUG RADIO READER LOCKABLE STEEL ENCLOSURE CURB STOP STANDPIPE AS REQUIRED 4" CONCRETE SLAB TO UNDERGROUND IRRIGATION WATERMAIN NOTE: 1. SECURITY BOX MUST BE MAINTENANCE FREE VANDELPROOF ENCLOSURE, WITH HINGED TOP.

10 PUBLIC ROAD 0.7 STAPLES PER SQ. YD STAPLES PER SQ. YD STAPLES PER SQ. YD. 4:1 SLOPES 3:1 SLOPES HIGH FLOW CHANNEL & SHORELINE 1. PREPARE SOIL BEFORE INSTALLING BLANKETS, INCLUDING ANY NECESSARY APPLICATION OF LIME, FERTILIZER, AND SEED. 2. BEGIN AT THE TOP OF THE SLOPE BY ANCHORING THE BLANKET IN A 6" (15cm) DEEP X 6" (15cm) WIDE TRENCH WITH APPROXIMATELY 12" (30cm) OF BLANKET EXTENDED BEYOND THE UP-SLOPE PORTION OF THE TRENCH. ANCHOR THE BLANKET WITH A ROW OF STAPLES/STAKES APPROXIMATELY 12" (30cm) APART IN THE BOTTOM OF THE TRENCH. BACKFILL AND COMPACT THE TRENCH AFTER STAPLING. APPLY SEED TO COMPACTED SOIL AND FOLD REMAINING 12" (30cm) PORTION OF BLANKET BACK OVER SEED AND COMPACTED SOIL. SECURE BLANKET OVER COMPACTED SOIL WITH A ROW OF STAPLES/STAKES SPACED APPROXIMATELY 12" (30cm) APART ACROSS THE WIDTH OF THE BLANKET. 3. ROLL THE BLANKETS (A.) DOWN OR (B.) HORIZONTALLY ACROSS THE SLOPE. BLANKETS WILL UNROLL WITH APPROPRIATE SIDE AGAINST THE SOIL SURFACE. ALL BLANKETS MUST BE SECURELY FASTENED TO SOIL SURFACE BY PLACING STAPLES/STAKES IN APPROPRIATE LOCATIONS AS SHOWN IN THE STAPLE PATTERN GUIDE. WHEN USING OPTIONAL DOT SYSTEM, STAPLES/STAKES SHOULD BE PLACED THROUGH EACH OF THE COLORED DOTS CORRESPONDING TO THE APPROPRIATE STAPLE PATTERN. 4. THE EDGES OF PARALLEL BLANKETS MUST BE STAPLED WITH APPROXIMATELY 2"-5" (5cm-12.5cm) OVERLAP DEPENDING ON BLANKET TYPE. TO ENSURE PROPER SEAM ALIGNMENT, PLACE THE EDGE OF THE OVERLAPPING BLANKET (BLANKET BEING INSTALLED ON TOP) EVEN WITH THE COLORED SEAM STITCH ON THE PREVIOUSLY INSTALLED BLANKET. 5. CONSECUTIVE BLANKETS SPLICED DOWN THE SLOPE MUST BE PLACED END OVER END (SHINGLE STYLE) WITH AN APPROXIMATE 3" (7.5cm) OVERLAP. STAPLE THROUGH OVERLAPPED AREA, APPROXIMATELY 12" (30cm) APART ACROSS ENTIRE BLANKET WIDTH. NOTE: *IN LOOSE SOIL CONDITIONS, THE USE OF STAPLE OR STAKE LENGTHS GREATER THAN 6" (15cm) MAY BE NECESSARY TO PROPERLY SECURE THE BLANKETS.

11 NOTES: 1. ALL PIPE SYSTEMS SHALL BE INSTALLED IN ACCORDANCE WITH ASTM D2321, "STANDARD PRACTICE FOR UNDERGROUND INSTALLATION OF THERMOPLASTIC PIPE FOR SEWERS AND OTHER GRAVITY FLOW APPLICATIONS", LATEST ADDITION PIPE DIAM. MIN. TRENCH WIDTH 2. MEASURES SHOULD BE TAKEN TO PREVENT MIGRATION OF NATIVE FINES INTO BACKFILL MATERIAL, WHEN REQUIRED. 3. FOUNDATION: WHERE THE TRENCH BOTTOM IS UNSTABLE, THE CONTRACTOR SHALL EXCAVATE TO A DEPTH REQUIRED BY THE ENGINEER AND REPLACE WITH SUITABLE MATERIAL AS SPECIFIED BY THE ENGINEER. 4. BEDDING: SUITABLE MATERIAL SHALL BE COURSE FILTER AGGREGATE, MNDOT SPEC. 3149H MOD. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. UNLESS OTHERWISE NOTED BY THE ENGINEER, MINIMUM BEDDING THICKNESS SHALL BE 4" FOR 4"- 24"; 6" FOR 30"-60". 5. INITIAL BACKFILL: SUITABLE MATERIAL SHALL BE COURSE FILTER AGGREGATE, MNDOT SPEC. 3149H MOD IN THE PIPE ZONE EXTENDING NOT LESS THAN 6" ABOVE CROWN OF PIPE. THE CONTRACTOR SHALL PROVIDE DOCUMENTATION FOR MATERIAL SPECIFICATION TO ENGINEER. MATERIAL SHALL BE INSTALLED AS REQUIRED IN ASTM D2321, LATEST EDITION. THE CONTRACTOR SHALL USE A J-TAMPER IN THE TRENCH ON EACH SIDE OF THE PIPE TO COMPACT THE BACKFILL. 6. MINIMUM COVER : MINIMUM COVER, H, IN NON-TRAFFIC APPLICATIONS (GRASS OR LANDSCAPE AREAS) IS 12" FROM THE TOP OF PIPE TO GROUND SURFACE. ADDITIONAL COVER MAY BE REQUIRED TO PREVENT FLOATION. FOR TRAFFIC APPLICATIONS, MINIMUM COVER, H, IS 12" UP TO 48" DIAMETER PIPE AND 24" OF COVER FOR 54"-60" DIAMETER PIPE, MEASURED FROM TOP OF PIPE TO BOTTOM OF FLEXIBLE PAVEMENT OR TO TOP OF MINIMUM RECOMMENDED COVER BASED ON LOADING CONDITIONS RIGID PAVEMENT. SURFACE LIVE LOADING CONDITION HEAVY CONSTRUCTION PIPE DIAM. H-25 (75T AXLE LOAD) * 12" - 48" 54" - 60" 12" 24" * VEHICLES IN EXCESS OF 75T MAY REQUIRE ADDITIONAL COVER 48" 60" 4" 6" 8" 10" 12" 15" 18" 24" 30" 36" 42" 48" 54" 60" 21" 23" 26" 28" 30" 34" 39" 48" 56" 64" 72" 80" 88" 96"

12 CONCRETE WASHOUT CONTAINMENT ³

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