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HomeMy WebLinkAbout023 Grading and Drainage Plan 2UPDNSNOWSTORAGEAREAELEV:5036.00'ELEV:5038.00'LOADING DOCKELEV:5038.00'ELEV:5038.00'ELEV:5036.00'FIRE TURNAROUNDAND LOADING ZONEFOR DELIVERIES ANDSOLID WASTEWESTBUILDINGEASTBUILDINGWEST PATIOAREAEAST PATIO AREAENTRANCEENTRANCELITTLE HORSE DR.SOUTH 3rd AVE P E A C E P I P E D R .SIDEWALKCHASEIE 5035'SIDEWALKCHASEIE 5037.5'MATCH EXISTING GRADEAT DRIVEWAY APRONMATCH EXISTINGGRADE AT EDGEOF CONCRETEWEST RETENTIONPOND 2084 c.f.EAST RETENTIONPOND 1045 c.f.SECTION ADRAINAGEPAN TODIRECTOFFSITEFLOWOP E N S P AC E 1 4 4 0 s f PRO P O S E D L A N D S C A P E B E R MSIDEWALKCHASEIE 5038'HISTORICAL FLOWPATH (OVERFLOWLINED WITH RIPRAP)HISTORICAL FLOWPATH (OVERFLOWLINED WITH RIPRAP)SECTION BLEGENDSURVEYED LOT BOUNDARYSUNDANCE SPRINGS SUBDIVISIONPHASE 1B BOUNDARY1' PROPOSED CONTOURSRETENTION POND CONTOURS (1')DRAINAGE FLOW PATHEXISTING TRAILEXISTING SIDEWALKPROPOSED TRAILPROPOSED SIDEWALK/CONCRETE AREAADDED ASPHALT FOR BIKE LANEDELINEATED WETLAND50'-30' WATERCOURSE SETBACK (ZONE 2)30'-0 WATERCOURSE SETBACK (ZONE 1)EXISTING TREESNOTES:1.PROPERTY FRONTS ON AN EXISTING PUBLIC TRAIL AND IS SUBJECT TO38.510.030D SETBACK STANDARDS (38.510.030I)2.WETLAND AREAS EXIST 40' AWAY AND AT CLOSEST 11' SE OF REAR PROPERTYBOUNDARY. NO WETLANDS EXIST WITHIN PROPERTY BOUNDARY. WETLANDSDELINEATION LINE WAS EVALUATED BY CONFLUENCE CONSULTING, INC ON9/15/20.3.TWO RETENTION PONDS HAVE BEEN DESIGNED TO CAPTURE AND INFILTRATERUNOFF IN EXCESS OF THE 2-YEAR DESIGN STORM PER CITY OF BOZEMANDESIGN STANDARDS. PONDS SHALL HAVE SIDE SLOPES NO GREATER THAN 4:1AND TOTAL DEPTHS NOT EXCEEDING 2.5'.4.AT LEAST 75% OF THE SURFACE OF THE RETENTION PONDS MUST BEVEGETATED TO BLEND WITH SURROUNDING LANDSCAPE (38.410.080H).5.BANK STABILIZATION SHALL BE USED AS NEEDED ON THE BACKSLOPE OF THEPONDS TO PREVENT EROSION INTO THE EXISTING WATERCOURSE. RIPRAP,GEOTEXTILES, STAKES, OR OTHER METHODS MAY BE CONSIDERED.6.SIDEWALK CHASES SHALL BE INSTALLED TO DIRECT PARKING LOT RUNOFFTOWARDS THE RETENTION PONDS. SEE SHEET C-501 FOR DETAILS.7.THE PROPOSED 3' LANDSCAPE BERM HAS BEEN DESIGNED TO BLOCK VIEW OFPARKING LOT FROM SOUTH 3RD STREET. TREES WILL BE PLANTED ON THE BERMTO FURTHER SCREEN PARKING LOT FROM THE ROAD. (38.550.060B)8. ALONG DESIGNATED ADA ROUTES, SIDEWALK GRADE MUST NOT EXCEED 5%RUNNING SLOPE AND 2% CROSS SLOPE.9.GRADE MUST MATCH EXISTING GRADE AT PARKING LOT ENTRANCE ANDEXISTING TRAIL TIE-INS.Elevation5035.005040.000 + 1 0 . 0 0 0 + 2 0 . 0 0 0 + 3 0 . 0 0 0 + 4 0 . 0 0 0 + 5 0 . 0 0 0+54.33SECTION A (NTS)WEST RETENTION POND07-25-2022 ElevationStation5035.005040.000+10.000+20.000 + 3 0 . 0 0 0 + 4 0 . 0 0 0 + 5 0 . 0 0 0 + 6 0 . 0 0 0 + 7 0 . 0 0 0 + 7 0 . 2 6 SECTION B (NTS)EAST RETENTION PONDSCALE: 1"=20'20400103050© 2022 SYNERGY ENGINEERING AND KONSULTING (SEAK). THISDRAWING AND ASSOCIATED ELECTRONIC FILES ARE THE WORKPRODUCT OF SEAK AND REUSE OF FILES IS BY LIMITEDPERMISSION FROM SEAK.SHEET Date: Drawn By: Checked By: Revisions: SUNDANCE SPRINGS SUBDIVISION PHASE 1B, COMM LOT 2 BOZEMAN, MT 59715 S25, T2S, R5E 5520 Sourdough Rd., Bozeman, MT 59715 Phone: (406) 925-0590 Filename:SUNDANCE SPRINGS 6.16.DWG Sheet:C-106-GRADING DRAINAGE (2) Location:F:\DROPBOX FILES\SEAK DROPBOX\SEAK PROJECTS\SUNDANCE SPRINGS\CAD Plotted:7/25/2022 Plotted by:MARLENE 07/25/2022 APR MS 6.16 3731 Equestrian Lane, Suite 102., Bozeman, MT 59718 Phone: (406) 624-6137 SYNERGY ENGINEERING AND KONSULTING C-106GRADING & DRAINAGE