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i <br />I"� <br />LEGEND <br />25 <br />5225 <br />X 25.8 <br />x Toa <br />1 <br />MM 111 <br />A <br />23.5 <br />0 ss <br />STORM <br />• <br />FF <br />TOB <br />TOC <br />W.S.E. <br />PROPOSED CONTOUR <br />EXISTING CONTOUR <br />PROPOSED SPOT ELEVATION <br />TOP OF BERM <br />EXISTING SPOT ELEVATION <br />HISTORIC SHEET FLOW <br />PROPOSED FLOW DIRECTION <br />EXISTING DRAINAGE BASIN BOUNDARY <br />PROPOSED DRAINAGE BASIN BOUNDARY <br />BASIN DESIGNATION (EXISITING) <br />AREA IN ACRES <br />BASIN DESIGNATION (PROPOSED) <br />AREA IN ACRES <br />PROPOSED DETENTION POND (100 -YR WATER SURFACE ELEV.) <br />EXISTING STORM SEWER W/MANHOLE <br />PROPOSED STORM SEWER <br />PROPOSED STORM STRUCTURE <br />FINISHED FLOOR ELEVATION <br />TOP OF BERM <br />TOP OF CURB <br />WATER SURFACE ELEVATION <br />NOTES <br />1. GRADE AWAY FROM BUILDINGS A MINIMUM OF A 6 INCH DROP IN THE FIRST 10 FEET IN <br />LANDSCAPE AREAS, AND AT A MINIMUM 2% SLOPE IN THE FIRST 10 FEET IN IMPERVIOUS AREAS. <br />SLOPES IN LANDSCAPED ARES SHALL NOT EXCEED 3H:1 V. <br />2. FLOOD INFORMATION: LOTS 2 AND 3, BLOCK 2, THE PARK AT COLORADO TECHNOLOGICAL <br />CENTER, IS LOCATED ENTIRELY IN ZONE X ACCORDING TO FEMA FLOOD INSURANCE RATE <br />MAP; COMMUNITY -PANEL NO. 08013C0578 F, DATED JUNE 2, 1995. <br />3. THE BENCHMARK FOR "THE PARK AT COLORADO TECHNOLOGICAL CENTER" IS CETNER <br />SECTION 16, TOWNSHIP 1 SOUTH,RANGE 69 WEST, #5 REBAR; ELEVATION 5318.04'. <br />ADD 5300 TO ALL SPOT GRADES AND PROPOSED CONTOUR LABELS. <br />4. THE SHADED "EXISTING" CONTOURS SHOWN ON THIS PLAN ARE BASED ON THE OVERLOT GRADING <br />PLAN (SHEET 4 OF 14) FOR PHASE 1 FOR "THE PARK AT COLORADO TECHNOLOGICAL CENTER" PREPARED BY <br />HURST & ASSOCIATES, INC. AS APPROVED BY THE CITY OF LOUISVILLE ON 10/22/98. THE OVERLOT <br />GRADING HAS NOT BEEN COMPLETED AS OF JUNE 28, 1999. <br />5. THE SHADED "EXISTING" UTILITIES SHOWN ON THIS PLAN ARE BASED ON THE CONSTRUCTION <br />PLANS FOR PHASE 1 FOR "THE PARK AT COLORADO TECHNOLOGICAL CENTER" PREPARED BY <br />HURST & ASSOCIATES, INC. AS APPROVED BY THE CITY OF LOUISVILLE ON 10/22/98. THESE <br />UTILITIES HAVE NOT BEEN COMPLETED AS OF THE JUNE 28, 1999. SCOTT, COX & <br />ASSOCIATES, INC. RECOMMENDS THAT THE EXISTENCE AND LOCATION OF ALL UTILITIES BE <br />FIELD VERIFIED PRIOR TO ANY DIGGING ON, OR ADJACENT TO THE SUBJECT PROPERTY. <br />ST MH "SA -32" <br />RIM =5308.97 <br />IN V.IN= 5304.00 <br />INV. OU T=5303.8 <br />ST "SA -28" <br />RIM= 5304.99 <br />-INV.IN=530f?.UO <br />/INV-OUT=52:32.33 <br />'J <br />-53061-- <br />ST <br />5.9 <br />s.(04 c1 ✓ TO <br />56 <br />SPILLWAY <br />• ST <br />21" STORM <br />18" RCP STORM STUB <br />28.6 LF AT 1.05% <br />INV. STUB=5304.30 <br />EXTEND STORM STUB <br />:TO LF 18" RCP <br />STORM AT 1.0% <br />5307 <br />18" <br />_.53061-- <br />18" RCP STORM STUB <br />39.5 LF AT 1.01% <br />INV. STUB=5.300.40 <br />TORM JUNTION '. <br />IM ELEV=5.2 <br />INV=0.5 <br />40 LF 12" RCP ; <br />STORM AT 0.60% <br />STORM INLET <br />RIM ELEV= 5.8 INV OUT=1.2 <br />CURB CUT <br />5.8 <br />1 <br />15 <br />12.8 <br />12.4 <br />15.9 <br />CU <br />15.7 <br />15.7 <br />15.4 1 <br />15.1 <br />PTQRM IN T <br />OND A LIMI <br />RELEASE STRUC <br />RIM ELEV=6.8 <br />INV IN=4.5 <br />V OUT=4.4 <br />82 LF 18" <br />RCP STORM <br />AT 0.60% <br />15.4 16 15.6 <br />.5x� X12.0 1 <br />16.8 x <br /><.fe:.:, <br />CONSTRUCT FOUNDATION WALL ABOVE <br />FINISHED FLOOR AT 0.5' ABOVE '. <br />EXTERIOR GRADE IN THIS AREA <br />ROOF STORM PIPE <br />MIN. INV=5303.5 <br />15 LF STORM <br />AT 2.0% MIN SLOPE <br />S RM INLET <br />RfFA ELEV=$.4 <br />INV IN=4.0 <br />9.1 o ri INV OUT=3.9 <br />8. <br />STORM INLET <br />KIM ELEV .5 <br />INV IN=4.4 <br />INV OUT=4.3 <br />PROPOSED 2' <br />CONCRETE PAN <br />POND B <br />W.S.E.10 =5304.1 <br />W.S.E.100 =5305.2 <br />Q10 =0.56cfs <br />Q dap=2.59cfs <br />V10 =14,157cf <br />V100 =24,083cf <br />OS <br />0.11 <br />LOT 4 <br />CURB CUT <br />5.5 <br />LOT 3A <br />BUILDING B <br />CONVEY ALL BUILDING B ROOF DRAINAGE TO POND B <br />LOT 2A <br />A <br />DRAINAGE TO PONDI A <br />80 LF STORM <br />AT 2.0% MIN SLOPE <br />12.0 <br />FF=17.0 <br />FF=13.0 <br />1 <br />cn <br />w <br />CURB <br />CUT - <br />9.1 X <br />1, ,moo) <br />CURBX <br />CUT <br />9.1 <br />4.0' STEP <br />CONSTRUCT FOUNDATION WALL ABOVE <br />FINISHED FLOOR AT 0.5' ABOVE <br />EXTERIOR GRADE IN THIS AREA <br />70 Lf <br />ST0µ <br />w <br />CURB <br />CUT <br />17.3 <br />8.4 <br />CURB <br />CUT <br />14.3X <br />PROPOSED. SIGN-" <br />(TYPICAL) <br />(33 <br />it. <br />PROPOSED DUMPSTER AREA <br />(TYPICAL). '" <br />LLS <br />POND A <br />W.S.E.10 =5307.6 <br />W.S.E. 100 =530$:4 <br />Q 10=0.30Cfs <br />Q 100=1.59cys <br />V10 =7,623cf <br />V t00=12,968cf <br />C2 <br />0.30 <br />0 <br />w <br />LOT 6 <br />OFFSITE GRADING <br />AGREEMENT REQUIRED <br />Scale: 1" = 30' <br />4 � 1 <br />0 15 30 60 <br />GRADING AND DRAINAGE PLAN <br />LOT 2A AND 3A, BLOCK 2 <br />THE PARK AT <br />COLORADO TECH CENTER <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 />JTM <br />WHM <br />Survey Sheet <br />8/23/99 1"=30' Page <br />Revision Description <br />1 CITY COMMENTS <br />2 FINAL P.U.D. SUBMITTAL <br />3 C1TV COMMENTS <br />4 CITY COMMENTS <br />5 FINAL PUD COMMENTS <br />6 OF 9 <br />Date <br />8/3/99 <br />8/23/99 <br />1OM /99 <br />10/25/99 <br />12/7/99 <br />Drawing no. <br />99296-5 <br />Project no. <br />99296B <br />3411 S014 410 113044 40 3903 40111504 <br />z <br />O <br />6 <br />g <br />VINHOdI1V0 '3NIA8 • <br />U138WfN JNIMVU <br />3401 SO41 40 14044 30 3903 401114304 <br />S141 40 444444 40 390? 440414 <br />n <br />1' <br />z <br />0 <br />8 <br />z <br />VINtiWWI1V0 '3NIABI • <br />11 <br />z <br />0 <br />6 <br />z <br />VINIj0311V0 '3N1A81 • <br />40 3903 N011ISOd <br />3N41 9141 440 144444 <br />8381NnN JNIMVUO <br />a38wnN ONIMVUO <br />•11 <br />ca• <br />r <br />z; <br />_ O n m <br />O <br />o. 7C C <br />9 N ro <br />g�= -Im <br />9:Ornam <br />'11 -0; r <br />• 0 <br />o __ <br />g' War <br />z <br />rn <br />(7 'G <br />z <br />