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CARMEL, INC8.3REVISIONSINDIANAPOLIS - TERRE HAUTELAFAYETTE - MUNCIE - NEW ALBANYwww.hwcengineering.comCONSTRUCTION DETAILSCONSTRUCTION DETAILS 48" DIA. STORM SEWER MANHOLEINLET TYPE ASIZEB(ft)La(ft)W(ft)Thickness(in)12"36912"15"3.75811.7512"18"4.51014.512"24"6131912"30"7.51618.518"36"9202318"42"10.52225.518"RIP-RAP PLACEMENTPRE CAST CONCRETE END SECTIONCONCRETE OUTLET CONTROLSTRUCTURE (STR.#606)™ Phone (888) 344-9044 Fax (423) 826-2112STORMWATER TREATMENT SOLUTIONS www.aquashieldinc.comAqua-Swirl Concentrator Model AS-6 BYP PCS Standard DetailAS-6 PCS STD01/06/15Scale:Drawn By:Document:Date:JCW1:20U.S. Patent No. 6524473 and other Patent PendingBackfill shall extend at least 18inches [457 mm] outward fromSwirl Concentrator and for thefull height of the SwirlConcentrator (including riser)extending laterally toundisturbed soils. (See MHDetail Below)STORMWATER TREATMENT SOLUTIONSPhone (888) 344-9044 www.aquashieldinc.com™InternalBafflesSlide riser over top ringand bolt in 4 placesRiser68" [1727 mm]104"[2896 mm]to116" [2946 mm]Swirl Inlet/OutletBeddingUndisturbed SoilBackfill6" [152 mm]18" [457 mm]Section A-AGrade (Rim)30" [762 mm]Rim elevations to match finishedgrade.Manhole Frame andCover by Manufacturer.(See Details)5" [127 mm] MH FrameVariesVariesPlan View84" [2134 mm]84" [2134 mm]OutletAInternal BafflesOctagonal Base PlatePipe couplingby Contractor.12" [305 mm]long Stub-outby Manufacturer.Ø72" [Ø1829 mm]4 1/2" [114 mm]1/2" [13 mm]1" [25 mm]Manhole Frame & Cover DetailNTSFor Non-Traffic Areas OnlySoil1" [25 mm]Unless other traffic barriers are present,bollards shall be placed around access riser(s)in non-traffic areas to prevent inadvertentloading by maintenance vehicles.SoilPlace small amount ofconcrete [3,000 psi [20MPa] (min)] to supportand level manhole frame.DO NOT allow manholeframe to rest upon riser.RiserFrameCover48" [1219 mm] Min.12" [305 mm]Wrap Compressible ExpansionJoint Material to a minimum1-inch [25 mm] thickness aroundtop of riser to allow transfer ofinadvertent loading frommanhole cover to concrete slab.Backfill (90%Proctor Density)ConcreteConcrete8" [203 mm]Gravel BackfillGravel Backfill4 1/2"CoverFrame1" [25 mm] ThickExpansion JointMaterial30" [762 mm]Riser#4 [13 mm] Rebar@ 6" [152 mm]Each Way14"1/2"3,000 psi [20 MPa](min) ConcreteManhole Frame & Cover DetailFor Traffic Loading AreasNTSIf traffic loading (HS-25) is required or anticipated, a 4-foot [1.22 m]diameter, 14-inch [356 mm] thick reinforced concrete pad must beplaced over the Stormwater Treatment System Riser to support andlevel the manhole frame, as shown. The top of riser pipe must bewrapped with compressible expansion joint material to a minimum1-inch [25 mm] thickness to allow transfer of wheel loads frommanhole cover to concrete slab. Manhole cover shall bear on concreteslab and not on riser pipe. The concrete slab shall have a minimumstrength of 3,000 psi [20 MPa] and be reinforced with #4 [13 mm]reinforcing steel as shown. Minimum cover over reinforcing steel shallbe 1-inch [25 mm]. Top of manhole cover and concrete slab shall belevel with finish grade.Backfill (90%Proctor Density)48"Aqua-Swirl Polymer Coated Steel (PCS)Stormwater Treatment SystemAInlet36"[914 mm] PCS Max2733 Kanasita Drive, Suite 111, Chattanooga, TN 37343* Please see accompanied Aqua-Swirl specification notes.* See Site Plan for actual system orientation.** Orientation may vary from 90°, 180°, or custom angles to meet site conditions.Note: As an alternative, 42-inch OD, HS-20/25rated precast concrete rings may be substituted.14-inch thickness must be maintained.180°**STORMTECH DETENTION CHAMBERBIKE RACKPLAN