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ti <br />f r DETENTION POND DATA <br />W.S.E.10 <br />100 = <br />= 53.0 (BASED ON THE ASSUMPTION THAT <br />W.S.E�pp = 53.6 THE WATER QUAUTY POND IS FULL) <br />115 Q 10 <br />®■ ®; = 0.30 cfs <br />�+>�'IR Q 1.62 cfs <br />1� �It LOT 4 alilltitiliaistilliV1 = 4,922 cf (THESE VOLUMES INCLUDE THE <br />llitil <br />d1t V 100 = 7,536 cf WATER QUALITY CAPTURE VOLUME) <br />t <br />02 <br />0.19 <br />1S <br />r <br />r <br />4. <br />57 <br />t. <br />EX. STORM MANHOLE SD -10 <br />EX. RIM=55.76± <br />EX. INV IN=50.17± <br />EX. INV OUT=50.07± <br />FLARED END SECTION <br />WITH OUTLET PROTECTION <br />INV.=51.0 <br />R=330.00' <br />L=62.49' <br />L�=10'51'01" <br />EX. 10' UTILITY, DRAINAGE AND <br />PEDESTRIAN EASEMENT <br />ROOF DRAIN PIPE <br />AT 2% MIN. SLOPE <br />POND OUTLET STRUCTURE <br />(SEE DETAIL) <br />FLARED END SECTION <br />WITH OUTLET PROTECT! <br />INV. = 49.8 <br />0.37/ <br />EMERGENCY OVERFLOW <br />ELEVATION = 53.85 <br />INLET #1 <br />RIM=53.3 <br />INV OUT (SE)=51.2 <br />A <br />EX. 30' RIGHT-OF-WAY AND <br />PIPELINE EASEMENT, NORTHERN <br />COLORADO WATER CONSERVACY <br />DISTRICT <br />PRIOR TO CONSTRUCTION <br />THE OWNER SHALL OBTAIN AN <br />AGREEMENT FROM THE NORTHERN <br />COLORADO WATER CONSERVANCY± <br />DISTRICT TO CONSTRUCT <br />PROPOSED IMPROVEMENTS IN <br />THIS EASEMENT <br />i <br />Q <br />11 <br />;RE Q SO .. <br />01 <br />\ 0.07 \ i <br />f <br />VC 5"4.6 <br />INLET #2 <br />RIM=53.5 <br />INV IN (NW)=50.91 <br />INV OUT (NE)=50.81 <br />EX. CONCRETE <br />INLET #3 <br />RIM=53.5 <br />INV IN (NW)=50.27 <br />INV OUT (N)=50.17 <br />LOT 2 <br />STORM MANHOLE <br />RIM=53.2 <br />INV IN (N)=48.91 <br />INV OUT (E)=48.71 <br />Scale: 1" = 20' <br />0 10 20 <br />ti` <br />EX. ELECTRIC <br />PEDESTAL <br />7.1 LF 18" STORM AT 1.0% <br />CONNECT TO EXISTING <br />18" RCP STUB <br />EX. INV.=48.8± <br />NOTES <br />24 _1/2"11 X 2 1/16"W OPEN <br />CAST IN BOX <br />(BEHIND PLATE) <br />BOLT (TYP.) - <br />POND <br />BOTTOM <br />ti <br />i 10 YEAR ORIFICE <br />2 1/16"W X 311 <br />SECTION B -B <br />100 YEAR POND ORIFICE PLATE <br />N.T.S. <br />10 YEAR ORIFICE INVERT <br />o I 5/16" THICK <br />STEEL PLATE <br />• ES <br />5 (S ET) <br />o I m <br />I <br />a I�► -� FUND BOTTOM <br />INV.=49.5 <br />SECTION B -B <br />(GRAVEL NOT SHOWN) <br />WATER oUAUTnr to YEAR BEEZ <br />N.T.S. <br />100 YR ORIFICE PLATE <br />GRATE <br />POND <br />10 YR 11SEL-53.0 <br />10 YEAR ORIFICE AREA <br />CAPTURE VOLUME SURFACE ELEV..51.3 <br />BOLT HOLLOW.) <br />ORIFICE INVERT <br />• INV. -51.3 <br />o �. OLES <br />-0/18" HDRILLED <br />o,, AS SHOWN(TYP.) <br />0 <br />J • ti _4* FIRST HOLE <br />�.....z�. <br />5" 5" <br />WATER QUALITY ORIFICE PLATE <br />N.I.S. <br />SIDE SLOPE <br />COBBLEs(1.5"-31 AGAINST <br />WATER QUAUTY ORIFICE PLATE <br />GRASSED POND./".' -- <br />BOTTOM <br />FILTER FABRIC <br />WATER QUAUTY ORIFICE PLATE <br />(SEE DETAIL) <br />•s• <br />POUR CONCRETE INVERT <br />IN BOX BOTTOM <br />STANDARD RAMP DRIVE <br />PROPOSED DRIVE AT LOT 3. BLOCK 1 SHALL <br />AUGN WITH THE OPPOSING DRIVE ACROSS <br />ARTHUR AVENUE <br />APPUCANT SHALL COORDINATE THE LOCATION <br />OF THE OPPOSING DRIVE IN THIS AREA WITH <br />THE OWNER OF THE OPPOSING PROPERTY <br />PRIOR TO CONSTRUCTION OF THE DRIVES <br />EX. STORM MANHOLE SD -8 <br />EX. RIM=51.85± <br />EX. INV IN=48.19± <br />EX. INV OUT=48.09± <br />REMOVE AND REPLACE <br />SIDEWALK TO NEAREST <br />JOINT WITH 10" THICK <br />CONCRETE SIDEWALK IN THE <br />DRIVE APPROACH AREA <br />1. GRADE AWAY FROM BUILDINGS A MINIMUM OF A 12 INCH DROP IN THE FIRST 10 FEET IN LANDSCAPE <br />AREAS, AND AT A MINIMUM 2% SLOPE IN THE FIRST 10 FEET IN IMPERVIOUS AREAS. SLOPES IN <br />LANDSCAPED AREAS SHALL NOT EXCEED 4H:1 V UNLESS OTHERWISE NOTED. <br />2. FLOOD INFORMATION: LOT 3, BLOCK 1, THE BUSINESS CENTER AT COLORADO TECHNOLOGICAL <br />CENTER, IS LOCATED ENTIRELY IN ZONE X ACCORDING TO FEMA FLOOD INSURANCE RATE MAP; <br />COMMUNITY -PANEL NO. 08013C0578 F, DATED JUNE 2, 1995. <br />3. BENCH MARK: 3" ALUMINUM CAP IN RANGE BOX, 0.3' BELOW ASPHALT. E 1/4 SECTION 17. <br />ELEVATION = 5369.36 (CITY OF LOUISVILLE DATUM). <br />4. THE LOCATION OF THE ABOVE GROUND UTILITIES SHOWN HEREON ARE BASED ON THE FIELD SURVEY <br />BY SCOTT, COX & ASSOCIATES, INC. THE LOCATIONS OF THE UNDERGROUND UTILITIES SHOWN <br />HEREON ARE BASED ON SAID SURVEY AND INFORMATION PROVIDED BY OTHERS (WHICH MAY INCLUDE <br />THE UTILITY OWNER OR UTILITY LOCATING SERVICES). SCOTT, COX & ASSOCIATES, INC. IS NOT RESPONSIBLE <br />FOR UTILITY INFORMATION PROVIDED BY OTHERS. SCOTT, COX & ASSOCIATES, INC. RECOMMENDS <br />THAT THE LOCATION OF THE UTILITIES BE FIELD VERIFIED PRIOR TO ANY DIGGING ON, OR <br />ADJACENT TO THE SUBJECT PROPERTY. <br />5. THIS DRAWING IS BASED ON A FIELD SURVEY COMPLETED ON OCTOBER 10, 2000. <br />6. ALL ROOF DRAINAGE SHALL BE DIRECTED TO THE DETENTION POND VIA THE PROPOSED ROOF DRAIN <br />PIPE AS SHOWN ON THE PLANS. <br />49.5 <br />49.4 <br />100 YR ORIFICE PLATE <br />10 YR <br />WATER 'QUALITY' <br />ORIFICE PLATE <br />N.T.S. <br />ZijigT RTI .�2UCTURE <br />\SEE 2'x2' INLET <br />STRUCTURE DETAIL <br />(GRAVEL NOT SHOWN) <br />ELUL <br />N.T.S. <br />LEGEND <br />25 <br />5225 <br />X 25.8 <br />X EX. 25.8 <br />=.> <br />MMMMWM <br />H <br />1.18 <br />O ST <br />_._• STORM 1 <br />FF <br />PROPOSED CONTOUR <br />EXISTING CONTOUR <br />PROPOSED SPOT ELEVATION <br />EXISTING SPOT ELEVATION <br />HISTORIC SHEET FLOW <br />PROPOSED FLOW DIRECTION <br />MAJOR BASIN BOUNDARY <br />SUB -BASIN BOUNDARY <br />HISTORIC BASIN DESIGNATION <br />AREA IN ACRES <br />4. <br />N <br />24" <br />PLAN <br />- I4"I-- <br />A <br />f <br />INLET SHALL BE MANUFACTURED BY <br />AMCOR OR APPROVED EQUAL <br />CONTRACTOR MAY CONSTRUCT A CAST IN PLACE <br />REINFORCED CONCRETE INLET STRUCTURE <br />IN UEU OF PRECAST INLET. IF DESIGN <br />MATCHES THE SPECIFIED STRUCTURE AND <br />IS APPROVED BY THE OWNER. <br />NOTE: USE 6" WALL THICKNESS <br />FOR CAST IN PLACE OPTION. <br />VY <br />2244 SQUAARRETMCAST IRON GRATE <br />(NEENAH TYPE R -3402-E, <br />AMCOR NO.72024141, <br />OR APPROVED EQUAL) <br />24" <br />PROPOSED BASIN DESIGNATION <br />AREA IN ACRES <br />PROPOSED DETENTION POND <br />EXISTING STORM SEWER W/MANHOLE <br />PROPOSED STORM SEWER W/MANHOLE AND INLET <br />FINISHED FLOOR/TOP OF FOUNDATION <br />SECTION A -A <br />CONTRACTOR SHALL MAKE PIPE <br />CONNECTION OPENINGS AS REQUIRED <br />III THE FIELD AND SHALL POUR NEW <br />CONCRETE INVERTS IN THE INLET <br />AFTER THE PIPE 71E -MIS HAVE BEEN MADE. <br />THE POURED INVERT SHALL HAVE A MIN. <br />SIDE SLOPE OF 1" PER 12". <br />INLET STRUCTURE <br />N,T.S. <br />FINAL P. U. D. <br />GRADING AND DRAINAGE PLAN <br />LOT 3 BLOCK 1 <br />THE BUSINESS CENTER AT CTC <br />LOUISVILLE, COLORADO <br />l! <br />Designed by <br />Drawn by <br />Checked by <br />SCOTT, COX & ASSOCIATES, INC. <br />consulting engineers • surveyors <br />1530 55th Street • Boulder, Colorado 80303 <br />(303) 444 - 3051 <br />CRH Date Scale <br />JAS <br />WHM <br />Survey Sheet <br />Cl <br />10/19/00 1"= 20' Page <br />Revision Description <br />1 CITY COMMENTS <br />2 POND \ASIONS <br />Date <br />12/4/00 <br />1/5/00 <br />Drawing no. <br />00622-1 <br />Project no. <br />00622C <br />POSITION EDGE OF PRINT ON THIS LINE <br />dV5L0 d38Wf1N A8 d30803d <br />NOIIVHOdE100 OIOH NVId <br />• <br />55 <br />z <br />m <br />0 <br />r <br />0 <br />33 <br />17.Z <br />0' <br />0 <br />- n <br />