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HomeMy WebLinkAbout031.8 - IR4.7 IRRIGATION NOTES©ALDER RIDGE & SAGE PEAKAPARTMENTSPREPARED FORGRAF STREETAPARTMENTS, LLC.® BEFORE YOU DIG, CALL 1-800-424-5555 ALAN R.MCWAIN JR.NO. 24474STATE OF MONTA N A L A N D SCAPE ARCHITECTLICENSEDL4.7IRRIGATION NOTESREGREGARMIWR = 425,141 GAL/YR (1.30 AF/YR) IRRIGATION SYSTEMS & WATER USE OUTDOOR WATERING: IRRIGATION DESIGN, INSTALLATION AND OPERATION SHALL COMPLY WITH THE CITY OF BOZEMAN WATER EFFICIENT LANDSCAPE ORDINANCE. BEST PRACTICES FOR WATER EFFICIENCY RECOMMENDATIONS: 1.HYDROZONING: LANDSCAPED AREAS SHOULD BE ON SEPARATE IRRIGATION ZONES (VALVES) BASED ON THE VEGETATION’S WATER DEMAND. GROUPING PLANTS WITH SIMILAR WATERING NEEDS IN THE SAME IRRIGATION ZONE WILL REDUCE OVER OR UNDER WATERING OF THE VEGETATION. 2.DROUGHT TOLERANT LANDSCAPING: DROUGHT TOLERANT AND WATER-WISE LANDSCAPING REQUIRES APPROXIMATELY 75% LESS WATER THAN TURFGRASS. MAXIMIZING THE INSTALLATION OF DROUGHT TOLERANT LANDSCAPING, ESPECIALLY WITHIN AREAS SURROUNDED BY PAVEMENT IS RECOMMENDED TO IMPROVE AESTHETICS AND MAXIMIZE WATER EFFICIENCY. 3.TOPSOIL: A TOPSOIL DEPTH OF 4”- 6” (AFTER GRADING) SHOULD BE INSTALLED IN SEEDED AND SODDED AREAS. THIS WILL SUPPORT PROPER ROOT DEPTH GROWTH AND ASSIST WITH PLANT AND TURFGRASS RESILIENCY. 4.DRIP IRRIGATION: PERENNIALS, SHRUBS, AND TREES SHOULD BE IRRIGATED USING LOW FLOW DRIP IRRIGATION TECHNOLOGY THAT WILL DIRECTLY TARGET THE ROOTS. 5.MSMT (ROTARY) NOZZLES: MULTI-STREAM, MULTI-TRAJECTORY (MSMT) ROTARY NOZZLES CAN REDUCE WATER LOSS FROM EVAPORATION AND WIND DRIFT BY UP TO 50%, AND ALLOW MORE TIME FOR WATER TO INFILTRATE INTO THE SOIL, REDUCING RUNOFF. MSMT ‘ROTARY NOZZLES’ SHOULD BE INSTALLED WHERE OVERHEAD IRRIGATION IS TO BE USED. 6.WEATHER-BASED IRRIGATION CONTROLLERS: WHEN PROGRAMMED PROPERLY, WEATHER-BASED IRRIGATION CONTROLLERS CAN REDUCE OUTDOOR WATER USE BY 25%. A WEATHER-BASED IRRIGATION CONTROLLER THAT CAN AUTOMATICALLY ADJUST THE WATERING SCHEDULE ACCORDING TO LOCAL WEATHER EVENTS SHOULD BE INSTALLED. 7.NARROW LANDSCAPED AREA IRRIGATION: UTILIZING OVERHEAD SPRAY IRRIGATION IN NARROW LANDSCAPED AREAS (< 8’) CAN RESULT IN LARGE AMOUNTS OF OVERSPRAY ONTO PAVEMENT AND OTHER SURROUNDING AREAS. LOW VOLUME DRIP OR SUBSURFACE DRIP IRRIGATION SHOULD BE INSTALLED IN THESE AREAS TO ELIMINATE OVERSPRAY. ALTERNATIVELY, CONSIDER PLANTINGS THAT WILL NOT REQUIRE IRRIGATION BEYOND THE ESTABLISHMENT PERIOD TO AVOID WASTING WATER IN THESE NARROW LANDSCAPED AREAS. 8.PRESSURE REGULATION: TO ENSURE UNIFORM COVERAGE OF TURF AREAS, THE USE OF PRESSURE REGULATING SPRINKLER BODIES IS ENCOURAGED. THESE SPRINKLER BODIES CAN HELP AVOID INCONSISTENT SPRAY PATTERNS WITHIN ONE ZONE, IN WHICH CERTAIN HEADS MAY RESULT IN MISTING WHILE OTHER HEADS CANNOT ACHIEVE THE NEEDED THROW DISTANCE. 9.TURFGRASS INSTALLATION: IN ORDER TO CONSERVE WATER, THE INSTALLATION OF TURF SHOULD BE LIMITED TO NO MORE THAN 35% OF LANDSCAPED AREAS FOR SINGLE HOUSEHOLDS AND 20% FOR MULTI-HOUSEHOLD, MIXED-USE, AND COMMERCIAL PROJECTS. 10.RAIN SENSORS: RAIN SENSORS CAN REDUCE OUTDOOR WATER USE BY APPROXIMATELY 10%. A RAIN/FREEZE SENSOR, WHICH OVERRIDES AND TURNS OFF THE IRRIGATION SYSTEM WHEN A CERTAIN AMOUNT OF RAIN HAS FALLEN, SHOULD BE INSTALLED. 11.IRRIGATION HEAD SPACING: OVERHEAD SPRINKLER HEADS SHOULD BE INSTALLED UPRIGHT IN THE GROUND AND 2” FROM ANY PAVED SURFACE, ESPECIALLY CURBS, TO MINIMIZE SPRINKLER HEAD DAMAGE FROM SNOWPLOWS AND LAWN CARE EQUIPMENT. 12.IRRIGATION SLEEVING: WHEN IRRIGATION LINES NEED TO BE ROUTED UNDER HARDSCAPE AREAS, SLEEVING SHOULD BE INSTALLED TO PROTECT THE IRRIGATION LINES FROM BREAKING AND ALLOW FOR EASE OF MAINTENANCE. SLEEVING SHOULD BE 1” LARGER IN DIAMETER THAN THE IRRIGATION LINE THAT IS BEING SLEEVED. 13.POST-INSTALLATION HEAD ADJUSTMENTS: AFTER INSTALLATION, SPRINKLER HEADS SHOULD BE ADJUSTED TO THROW THE PROPER DISTANCE AND DIRECTION TO MINIMIZE WATER WASTE VIA RUN-OFF AND ACHIEVE HEAD-TO-HEAD COVERAGE. REQUIREMENTS: A.IRRIGATION WATER SOURCE: THE WATER SOURCE THAT WILL SUPPLY THE IRRIGATION (A WELL OR CITY WATER CONNECTION) MUST BE DENOTED ON THE LANDSCAPE PLAN. B.BACKFLOW PREVENTION: TO ENSURE PROPER PROTECTION OF BOZEMAN’S DRINKING WATER SUPPLY, THE INSTALLATION OF A BACKFLOW PREVENTER THAT IS APPROVED BY THE UNIFORM PLUMBING CODE FOR USE ON IRRIGATION SYSTEMS IS REQUIRED. REDUCED PRESSURE BACKFLOW DEVICE AS SPECIFIED GALVANIZED NIPPLES AND ELBOW AS REQUIRED GALVANIZED UNIONS AT EACH SIDE GALVANIZED RISERS GALVANIZED ELBOW AND NIPPLE, TYPICAL EA. SIDE PVC COUPLER AND SCHEDULE 80 TOE NIPPLE, TYPICAL EACH SIDE MAIN LINE, SIZE AS PER PLANS CONCRETE THRUST BLOCKS, 90LBS OF CONCRETE EACH (TYP) SERVICE SIDEHEIGHT ASPER LOCALCODEFINISHED GRADE FLOW BACKFLOW ENCLOSURE BACKFLOW PREVENTER 1/2" = 1'-0"SEA-090-010-010-151 NO VALVES, REDUCERS, OR ELBOWS IN THIS AREA. FIVE PIPE DIAMETERS1/2" WIRE CLOTH GOPHER SCREEN, WRAP UP SIDES, OVER BRICK SUPPORTS, ONE EACH SIDE (TWO PER BOX). AT BOTTOM OF EACH BOX: 30" LOOPED WIRES. SCH 80 NIPPLES, VALVE INLET SIZE. WATERPROOF WIRE CONNECTORS, ON MASTER CONTROL VALVE AS SPECIFIED. SENSOR TERMINAL BOARD REDUCER AS REQUIRED. TEN PIPE DIAMETERS PVC MAIN LINE FROM BACKFLOW DEVICE. FLOW SENSOR CABLE TO CONTROLLER NDS RECTANGULAR BOXES WITH 6' EXTENSIONS AS REQUIRED. FINISHED GRADE. FLOW SENSOR AS SPECIFIED. SCHEDULE 80 NIPPLES, VALVE INLET SIZE. WATERPROOF WIRE CONNECTORS ON 18" LOOPED WIRES. MASTER CONTROL VALVE / FLOW SENSOR ASSEMBLY 1" = 20'SEA-090-010-010-132 FLOW SENSOR ASSEMBLY 1 1/2" = 1'-0" FLOW SET BOX 2" ABOVE GRADE AT SHRUBS. SET BOX FLUSH TO GRADE AT TURF. FLOW SENSOR AS SPECIFIED. A.E.P.RECTANGULAR BOX #1015 WITH 6" EXTENSIONS AS REQUIRED. WATER PROOF WIRE CONNECTORS ON 18" LOOPED WIRES. PVC CONDUIT FOR CONTROLLER WIRES. 1/2" WIRE CLOTH GOPHER SCREEN, WRAP UP SIDES.6X2X16 CONC. BLOCK CAPS, ONE EACH SIDE (2 TOTAL) 5 DIAMETERS PIPE LENGTH.10 DIAMETERS PIPE LENGTH 3 SEA-090-010-010-43 NOTE: FURNISH FITTINGS AND PIPING NOMINALLY SIZED IDENTICAL TO NOMINAL QUICK COUPLING VALVE INLET SIZE. FINISHED GRADE/ TOP OF MULCH QUICK-COUPLING VALVE VALVE BOX WITH COVER PVC SCH 80 NIPPLE 6-INCH MINIMUM DEPTH OF 3/4-INCH WASHED GRAVEL BRICK (1 EACH CORNER) SUPPORT PVC SCH 80 NIPPLE PVC SCH 40 SWEEP ELL PVC SCH 40 SWEEP ELL PVC SCH 40 TEE OR ELL MAINLINE PIPE PVC SCH 40 ELL STAINLESS STEEL GEAR CLAMPS OR EQUIVALENT SUPPORT SYSTEM TYPICAL QUICK COUPLER 1/2" = 1'-0"SEA-090-010-010-164 BRICK SUPPORTS, (1 EACH SIDE - 2 TOTAL). SCHEDULE 60 NIPPLES, VALVE INLET SIZE (TYP.) REMOTE CONTROL VALVE AS SPECIFIED. TURF PVC LATERAL LINE. 12" WIRE CLOTH GOPHER SCREEN, WRAP UP SIDES. SET BOX 2" ABOVE GRADE AT SHRUBS. SET BOX FLUSH TO GRADE AT TURF. WATER PROOF WIRE CONNECTORS ON 30" LOOPED WIRES. NDS RECTANGULAR BOX WITH 6" EXTENSIONS AS REQUIRED. PVC MAINLINE LINE. REMOTE CONTROL VALVE 1/2" = 1'-0"SEA-090-010-010-265 3 4 5 6 7 8 9 8 10 11 12 13 14 15 16 17 18 2 3 15 14 7 7 14 15 16 14 FINISH GRADE/TOP OF MULCH1 VALVE BOX WITH LOCKING COVER2 REMOTE CONTROL VALVE3 30-INCH LINEAR LENGTH OF WIRE, COILED4 WATERPROOF CONNECTION5 ID TAG6 PRESSURE REGULATING QUICK CHECK BASKET FILTER7 PVC SCH 80 NIPPLE (LENGTH AS REQUIRED)8 PVC SCH 40 ELL9 PVC SCH 80 NIPPLE (2-INCH LENGTH, HIDDEN) AND PVC SCH 40 ELL 10 PVC SCH 40 TEE OR ELL11 MAINLINE PIPE12 6-INCH MINIMUM DEPTH OF 3/4-INCH WASHED GRAVEL13 PVC SCH 80 NIPPLE, CLOSE14 PVC SCH 40 ELL15 PVC SCH 40 TEE16 LATERAL PIPE17 PVC SCH 40 FEMALE ADAPTOR18 1 2 DRIP CONTROL VALVE 1" = 30'SEA-090-010-010-146 WATER EFFICIENT LANDSCAPE ORDINANCE (WELO)