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HomeMy WebLinkAbout022 Grading and Drainage Plan C-105OPEN SPACE(1,439 SF)8''SS 8''S S 8''S S SIDEWALKCHASEIE 5035.5'SIDEWALKCHASEIE 5037.5'MATCH EXISTING GRADEAT DRIVEWAY APRONMATCH GRADEAT EDGE OFCONCRETEAPPROACH WITHSIDEWALK PER COBSTANDARD NO02529-5C5036'5037'5038'5039'5040'5038'5038'5039'WEST RETENTIONPONDWEST BUILDINGELEV: 5038'EAST RETENTIONPONDENTRANCECURB CUTIE 5035EAST BUILDINGELEV: 5036'ENTRANCE8''SD 8''SD 8' 'SD 8'' S DMICRO POOL,OUTLETSTRUCTURE, AND 8"PVCMICRO POOL,OUTLETSTRUCTURE, AND 8"PVC8" BURIED PVC OUTLETPIPE TO LOW POINTRIP RAP DISCHARGE POINTSEE SHEET C-5088" BURIED PVC OUTLETPIPE TO LOW POINTLEGENDSURVEYED LOT BOUNDARY1' PROPOSED CONTOURS1' EXISTING CONTOURSRETENTION PONDSDRAINAGE FLOW PATHEXISTING TRAILSPROPOSED TRAILPROPOSED SIDEWALK/CONCRETE AREAPROPOSED ASPHALT BIKE LANEDELINEATED WETLAND50'-30' WATERCOURSE SETBACK (ZONE 2)30'-0 WATERCOURSE SETBACK (ZONE 1)EXISTING TREES09-30-2025NOTES:1.TWO DETENTION PONDS HAVE BEEN DESIGNED TO CAPTURE, TREAT, AND SLOWRUNOFF IN EXCESS OF THE 100-YEAR DESIGN STORM PER CITY OF BOZEMANDESIGN STANDARDS. PONDS SHALL HAVE SIDE SLOPES NO GREATER THAN 2:1AND TOTAL DEPTHS NOT EXCEEDING 4.5'.2.POND SIDES SHALL BE LINED WITH RIPRAP3.BANK STABILIZATION SHALL BE USED AS NEEDED ON THE BACKSLOPE OF THEPONDS TO PREVENT EROSION INTO THE EXISTING WATERCOURSE. RIPRAP,GEOTEXTILES, STAKES, RETAINING WALLS OR OTHER METHODS MAY BECONSIDERED.4.OUTLET STRUCTURES SHALL BE CONSTRUCTED PER DETAIL ON SHEET C-5075.MAINTAIN 10' SETBACK BETWEEN BUILDINGS AND DETENTION PONDS6.MAINTAIN 30' WATERCOURSE AND 5' PROPERTY LINE SETBACKS FOR DETENTIONPONDS.7.CONTRACTOR TO FIELD FIT MICRO POOLS IN THE BOTTOM OF PONDS. ENSURE10 SQUARE FT SURFACE AREA OR GREATER.8.SIDEWALK CHASES SHALL BE INSTALLED TO DIRECT PARKING LOT RUNOFFTOWARDS THE RETENTION PONDS. SEE SHEET C-501 FOR DETAILS.9.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)10.ALONG DESIGNATED ADA ROUTES, SIDEWALK GRADE MUST NOT EXCEED 5%RUNNING SLOPE AND 2% CROSS SLOPE.11.GRADE MUST MATCH EXISTING GRADE AT PARKING LOT ENTRANCE ANDEXISTING TRAIL TIE-INS.SIDE SLOPE 2:1LINE WITH RIPRAP3.5' MAX WATER DEPTHSIDEWALK CHASE, 5037'IE 5033.5'SECTION A (NTS)WEST DETENTION POND1% GRADE TO OUTLET4.5' TOTAL DEPTH1' FREEBOARDWEST POND OUTLET STRUCTURE WITHORIFICE AS DETAILED ON C-50610 SQFT CONCRETE LINED MICROPOOL1'SECTION B (NTS)EAST DETENTION PONDSIDE SLOPE 2:1LINE WITH RIPRAP3.5' MAX WATER DEPTHSIDEWALK CHASE, 5034'IE 5030.5'1% GRADE TO OUTLET4.5' TOTAL DEPTH1' FREEBOARDEAST POND OUTLET STRUCTURE WITHORIFICE AS DETAILED ON C-50610 SQFT CONCRETE LINED MICROPOOL1'SCALE: 1"=20'20400103050© 2025 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 Filename:SUNDANCE REDESIGN 6.8.DWG Sheet:022 GRADING AND DRAINAGE PLAN C-105 Location:C:\USERS\MARLENE S\ANDERSON ENGINEERING DROPBOX\MARLENE SADAJ\SEAK PROJECTS\SUNDANCE SPRINGS - ROUND 2\CAD\ENGINEERING - CAD Plotted:10/1/2025 Plotted by:MARLENE S 9/30/2025 DP MS 6.8 3731 Equestrian Lane, Suite 102., Bozeman, MT 59718 Phone: (406) 624-6137 SYNERGY ENGINEERING AND KONSULTING C-105GRADING & DRAINAGE PLAN