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River Terrace East MultifamilyOtak, Inc. Otak, Inc. Otak, Inc. Otak, Inc. Otak, Inc. Otak, Inc. Otak, Inc. SECTIONVIEW COVERBACK PICKHOLEDETAIL PLANVIEW SEEDETAIL#110FORMANHOLEFRAMESPECIFICATIONS. Otak, Inc. FOAM GASKET W/PSA BACKING(TRIM TO LENGTH) MOUNTINGFLANGE DETAIL B GASKETCOMPRESSEDBETWEEN HOODAND STRUCTURE(SEE DETAIL B) INSTALLATION NOTE: POSITION HOOD SUCH THATBOTTOM FLANGE IS BELOWTHE PIPE INVERT. STAINLESSBOLT ANCHORSHIELD EXPANSION CONE(NARROW END OUT) DRILLEDHOLE DETAIL A ANCHOR W/ BOLT(SEE DETAIL A) 18" GRADE RINGS (2", 4", OR 6") MAXIMUM 8"- SEE NOTE 6 SET IN NON-SHRINK GROUTPAVING RINGS NOT ALLOWED SEE NOTE AT TOP OF STANDARD DETAIL #020. FOR LARGE DIAMETER MANHOLES SEE STANDARD DETAIL #160 PIPE TYPESIZE, AND CONNECTION PERPLAN, AS APPROVED WATERTIGHT SEAL OIL & FLOATABLE DEBRIS ON SURFACE CANNOT EXIT PIPE "SNOUT" OIL & DEBRIS STOP ANTI-SIPHON DEVICE 18" 60" MINIMUM ALL HOODS AND TRAPS FOR CATCH BASINS AND WATER QUALITY STRUCTURES SHALL BE AS MANUFACTURED BY: BEST MANAGEMENT PRODUCTS, INC.53 MT. ARCHER RD. LYME, CT 06371 (860) 434-0277, (860) 434-3195 FAX TOLL FREE: (800) 504-8008 OR (888) 354-7585 WEB SITE: WWW.BESTMP.COM OR PRE-APPROVED EQUAL SUMP VOLUME REQUIREMENTS 20 CF/1.0 CFS OF INFLOW 58.9 CF MINIMUM REQUIRED SUMP VOLUME AVAILABLE MINIMUM MAXIMUM 60" M.H.= 58.9 CF 98.1 CF 72" M.H.= 84.8 CF 141.3 CF 84" M.H.= 115.4 CF 192.3 CF PROVIDE SPECIAL DETAIL FOR VOLUME REQUIREMENTS EXCEEDING 192.3 CF NOTES: 1.ALL MANHOLE SECTIONS SHALL CONFORM TO THE REQUIREMENTS OF ASTM C-478 AND APPLICABLE PROVISIONS OF STD. MANHOLE DRAWING NO. 010 2.INLET AND OUTLET PIPE NOT TO EXCEED 18"DIA. 3.PROVIDE SPECIAL DETAIL FOR OUTLET FLOW CONTROL EXCEEDING 18" DIA. 4.ALL OUTLETS SHALL HAVE FLOW CONTROL DEVICE. Otak, Inc. NOTE: ALL COMPACTTION REQUIREMENTS PER AASHTO T-99 AND ODOT/APWA SPEC 00405. CONSTRUCTION 1. Water Quality Swale shall be over-excavated and filled to final grade with 12-inch amended topsoil. Topsoil amendments shall be garden compost, not conventional fertilizer amendments. 2.A biodegradable Erosion Control Matting shall be placed over the topsoil throughout the swale cross section, fabric shall be held in place in accordance with the manufacturer's installation requirements. Anchor spacing shall be based on 3 fps flow over the fabric. a. Treatment area - high-density jute matting (Geojute Plus or other approved equal) b. All other areas - low-density jute matting (Econojute or other approved equal) 3.2.5-3 inches of 2"-34" river run rock shall be placed over the matting evenly throughout the length and width of the swale. 4. Plant materials shall be placed in accordance with the plan and plant table as shown on approved plans. 5.The water quality swale treatment area plantings can be deemed "substantially complete" once active green growth has occurred to an average growth of 3" and plant density is an average of approx. 6 plants (minimum 1-inch plugs or equivalent) per square foot. 6.The facility shall be deemed acceptable to begin the maintenance period when plant growth and density matches the engineer's design as shown on the approved plans and all other requirements have been met. The engineer must certify the facility to be functional, in accordance with the approved plan design to begin the two-year maintenance period. MAINTENANCE 1.The permittee is responsible for the maintenance of this facility for a minimum of two years following construction and acceptance of this facility per Chapter 2. 2.Irrigation is to be provided per separate irrigation plan as approved. Note: Irrigation needs are to be met using a temporary irrigation system with a timer during the dry season. Systems should be winterized during the wet season to assure longevity and guard against damage from freezing temperatures. Water source shall be as shown on the approved plans. 3.Engineer or Owners Representative is to visit and evaluate the site a minimum of twice annually (Spring and Fall). The landscaping shall be evaluated and replanted as necessary to ensure a minimum of 80% survival rate of the required vegetation and 90% aerial coverage. Non-native, invasive plant species shall be removed when occupying more than 20% of the site. 4.The facility shall be re-excavated and planted if siltation greater than 3 inches in depth occurs within the two-year maintenance period. NOTES: 1.BAFFLE WALL SHALL HAVE #4 BAR AT 12" SPACING EACH WAY. 2.PRECAST BAFFLE SHALL BE KEYED AND GROUTED IN PLACE. JOINT BETWEEN CONCRETE BAFFLE AND MANHOLE WALL SHALL BE WATERTIGHT. 3.UPPER FLOW ORIFICE SHALL BE ALUMINUM, ALUMINIZED STEEL OR GALVANIZED STEEL. GALVANIZED STEEL SHALL HAVE TREATMENT 1. 4.FRAME AND LADDER OR STEPS ARE TO BE OFFSET SO THAT: SHEAR GATE IS VISIBLE FROM THE TOP; CLIMB-DOWN SPACE IS CLEAR OF RISER AND GATE; FRAME IS CLEAR OF CURB. 5.MULTI-ORIFICE ELBOWS SHALL BE PREINSTALLED TO INSURE LADDER CLEARANCE. 6.RESTRICTOR PLATE WITH ORIFICE AS SPECIFIED IN THE CONTRACT. OPENING IS TO BE CUT ROUND AND SMOOTH. NEOPRENE GASKET SHALL BE INSTALLED BETWEEN THE ORIFICE PLATE AND CONCRETE BAFFLE TO PROVIDE A WATERTIGHT SEAL. 7.SHEAR GATE SHALL BE MADE OF ALUMINUM ALLOY IN ACCRDANCE WITH ASTM B 26M AND ASTM B 275, DESIGNATION Zg32A 0R CAST IRON IN ACCORDANCE WITHASTM A 48, CLASS 30B. LIFT HANDLE MAY BE SOLID ROD OR HOLLOW TUBING WITH ADJUSTABLE HOOK AS REQUIRED. NEOPRENE RUBBER GASKET RERQUIRED BETWEEN RISER MOUNTING FLANGE AND GATE FLANGE. MATING SURFACES OF LID AND BODY SHALL BE MACHINED FOR PROPER FIT. FLANGE MOUNTING BOLTS SHALL BE __" DIAMETER STAINLESS STEEL. 8.SHEAR GATE MAXIMUM OPENING SHALL BE CONTROLLED BY LIMITED HINGE MOVEMENT, STOP TAB OR SOME OTHER DEVISE. 9.ALTERNATE SHEAR GATES DESIGNS ARE ACCEPTABLE, IF MATERIAL SPECIFICATIONS ARE MET AND FLANGE BOLT PATTERN MATCHES. 10.MANHOLE CERTIFICATION REQUIRED FOR TRAFFIC LOADING. NOTE: GROUT INTERNAL PARTITION AND SEAL ALL CONNECTIONS/ PENETRATIONS TO PREVENT LEAKAGE OF STORM WATER (WATER TIGHT SEAL) OUT OF NON- APPROVED LOCATIONS. Otak, Inc. ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT 13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT 13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT 13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT 13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON Otak, Inc. ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT 13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT 13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON ENGINEERING DIVISIONPUBLIC WORKS DEPARTMENT 13125 S.W. HALL BLVD.TIGARD, OREGON 97223VOICE: (503) 639-4171FAX: (503) 684-7297 CITY OF TIGARD OREGON Otak, Inc. Otak, Inc.