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STEEL PLATE <br />NON SLIP <br />RAISED <br />PATTERN <br />PLATE FLUSH <br />WITH TOP OF <br />WALK <br />1/2" <br />L-3/16" CLEARANCE <br />NO. 5 REBAR, 6" LON; WELDED <br />10 PLATE AT 18" O.0 EACH • <br />SIDE (1/2" ANCHOR BJLT MAY <br />BE USED) <br />POND <br />a <br />1/4" x 3/4" F.H. MACHINE <br />SCREWS 02' 4" O.C. <br />COUNTERK-FlUSIr <br />NON -SLIP RAISED PATTERN <br />3/8" STEEL PLATE <br />SIDEWALK CHASE <br />N.T.S. <br />EL 89.1 <br />2259 <br />0. <br />PEA GRAVEL <br />PLAY SURFACE <br />GEOTEXTILE FILTER FABRIC <br />ON SUBGRADE <br />8" PERFORATED PVC <br />SDR 35 PIPE <br />8" MIN. COVER OVER PIPE <br />MATCH EX. <br />GROUND <br />SECTION A -A <br />N.T.S. <br />50' <br />PLAY AREA <br />QUI <br />a.- <br />(1_ H _rte H <br />. -- <br />a <br />BURLINGTON <br />A <br />NORTHERN RAILROAD <br />6 <br />• <br />EX. 18" DEPRESSED <br />CULVERT <br />3' WIDE EMERGENCY OVERFLOW <br />ELEVATION=88.1 <br />28.0 LF 18" STORM <br />AT 1.25% <br />•411 IN-INN411,4N <br />.7" 11* <br />MVO! <br />CLEANOUT <br />INV i88.0 - <br />FLARED END SECTION- <br />OR <br />ECTION <br />OR CONCRETE COLLAR <br />Ma mow <br />MM MM WM MO MM MM MM1 MM MM OM WM Ma IMM MMS <br />-0-125.0 LF 8" PERFORATED PIPE AT 1.5% --•- <br />RIP -RAP AT POND <br />--OUTLET. 4' WIDE. <br />3.0' <br />APPR XIMATE LOCATION OF <br />DETENTION POND <br />F e LOT 2. <br />10' DRAINAGE AND <br />UTILITY EASEMENT <br />�`-a387 <br />41:i‘ <br />INV=813.8 <br />1l <br />PLAY AREA <br />(PEA GRAVEL SURFACE) <br />P1 <br />0.20 <br />CLEANOUT <br />cn <br />w <br />oa <br />-14 <br />BERM <br />r1' M IN. <br />a� 1 <br />MATCH EX. <br />GROUND <br />6" THICK BED OF <br />3/4" CRUSHED <br />ROCK <br />ECTI4ON2a-B <br />1 <br />ROOF DOWNSPOUT (TYP). <br />._ PROPOSED BUILDING <br />NO• <br />FF EL 92.7 <br />SHALL BE <br />DRAINAGE BAST <br />ROOF DRAINAGE <br />MED INTO <br />2 ONLY. <br />JNV=89.8 <br />psi <br />CLEANOUT <br />TRASH ENCLORE W/ <br />8' HIGH WOOD FENCE) <br />�_ �+•_ . APRON) <br />CLEARANCE <br />-- BETWEEN BOTTOM ---M--- -- <br />4 GATE AND FINISHED GRAD <br />INV=84.05 <br />FLARED END SECTION <br />OR CONCRETE COLLAR <br />EX. ELECTRIC PAD <br />DETENTION POND <br />OUTLET STRUCTURE. <br />PIPE INV=84.4 <br />EXISTING <br />ASPHALT <br />CONCRETE TRICKLE <br />CHANNEL AT 1.0% <br />1' CURB CUT. <br />EXISTING <br />BUILDING <br />1 <br />HC RAMP <br />1.0% 91.3? <br />all'• all <br />- <br />• •• <br />• •'•%0 <br />9X9 --- <br />39'"V-92. <br />.ie 4 <br />92.7 92.3 <br />RIP -RAP SECTION / <br />N.T.S. <br />ASPHALT PAVEMENT <br />EXISTING <br />ASPHALT <br />POIL <br />-.-sir"ell = <br />N PI <br />+EX,�94.5* <br />EX. 4' SIDEWALK <br />EX. 94.51 <br />71 <br />- K <br />PROPOSED GRADE <br />ONCRETE COLLAR <br />PROPOSED STORM PIPE <br />CUT END OF PIPE <br />TO MATCH FINISHED GRADE <br />�-�.. •.11-6•••• <br />12" <br />MIN. <br />12" <br />MIN. <br />FRONT VIEW <br />s•wM <br />•M"MY. <br />4 <br />SITE <br />M)K•M <br />at NM <br />®MMM <br />Fin FT- R <br />VICINITY MAP <br />NOT TO SCALE <br />BENCHMARK <br />ELEV.=5393.69 <br />-- <br />CONCRETE COLLAR <br />6" MIN. <br />CONCRETE COLLAR <br />N.T.S. <br />2f <br />3225 <br />91.7+ <br /><=1 <br />PROPOSED STORM PIPE <br />#4 BAR, CONTINUOUS <br />AROUND PIPE <br />(2" CLR.) <br />SECTION <br />LEGEND <br />16 � <br />MEM II Ilii <br />O ST <br />CETEN <br />� OR/VE <br />EXISTING CURB CUT <br />MN/MO <br />MMrr <br />EXISTING CURB CUT <br />1 1. <br />PROPOSED CONTOUR <br />EXISTING CONTOUR <br />PROPOSED SPOT ELEVATION <br />HISTORIC SHEET FLOW <br />PROPOSED FLOW DIRECTION <br />DRAINAGE BASIN BOUNDARY (HISTORIC) <br />PROPOSED BASIN BOUNDARY <br />SUB -BASIN DESIGNATION (HISTORIC) <br />AREA IN ACRES <br />PROPOSED SUB -BASIN DESIGNATION <br />AREA IN ACRES <br />PROPOSED DETENTION POND <br />EXISTING STORM SEWER W/MANHOLE <br />CATCH CURB AND GUTTER. (ALL OTHER <br />CURB SHALL BE SPILL CURB). <br />NOTES: <br />EXISTING CURB CUT <br />ST _""- - ST <br />, <br />ST <br />I.Ol11SVILIE NORTH <br />SEVENTH FILING <br />Scale: 1" = 20' <br />0 10 20 40 <br />1. GRADE AWAY FROM BUILDINGS A MINIMUM OF A 6 INCH <br />DROP IN THE FIRST 10 FEET IN LANDSCAPED AREAS. <br />2. THE FEMA FLOOD INSURANCE RATE MAP, PANEL 080023 0202B <br />DATED JULY 15, 1988, INDICATES THAT THE ENTIRE SITE <br />IS IN ZONE C, INDICATING THAT IT IS OUTSIDE OF ANY <br />MAPPED 500 YEAR FLOODPLAIN. <br />3. THE BENCHMARK FOR THIS SITE IS THE CITY OF LOUISVILLE <br />BENCHMARK 38 L, N.E. BONNET BOLT ON THE FIRE HYDRANT <br />AT THE EAST SIDE OF CENTENNIAL DRIVE, EAST OF SAFEWAY. <br />ELEVATION = 5393.69 FEET. <br />•milt <br />FT <br />EXISTING CURB CUT <br />12" <br />24" <br />I_ I <br />2' x 2' PRECAST CONCRETE <br />INLET AS MANUFACTURED BY <br />CARDER CONCRETE, CAT. <br />No. CB -202B, WITH OPEN TOP. <br />CONTRACTOR MAY CONSTRUCT <br />AN IN PLACE REINFORCED <br />CONCRETE BOX IN LIEU OF <br />PRECAST INLET, IF DESIGN <br />MATCHES THE SPECIFIED STRUCTURE <br />AND IS APPROVED BY THE OWNER. <br />r► <br />TRICKLE CHANNEL <br />N.T.S. <br />100 YR WSEL=5388.1 <br />CAST IRON GRATE <br />DEETER 3221 <br />OR APPROVED EQUAL <br />10 YR WSEL=5387.2 <br />CONCRETE TRICKLE CHANNEL <br />10 YR ORIFICE <br />SEE DETAIL. <br />1' <br />ST <br />BOLT (TYP.) --o„,„ <br />• <br />6" DIA. CIRCULAR, <br />OR 6" SQUARE <br />BLOCK OUT IN <br />CONCRETE BOX. <br />100 YR ORIFICE PLATE <br />SEE DETAIL. <br />18" STORM <br />PIPE INV=5384.40 <br />POUR CONCRETE INVERT IN <br />BOX BOTTOM BETWEEN SECTION A -A <br />ORIFICE INVERTS. N.T.S. <br />• <br />_.I <br />ST <br />3T <br />TOP OF GRATE <br />EL 5387.20 <br />10 YR ORIFICE PLATE <br />N.T.S. <br />POND SIDE SLOPE <br />ST ST <br />1' x 1' x 1/4" THICK BOLT (TYP.) <br />STEEL PLATE <br />2.1" DIA. HOLE IN <br />STEEL PLATE <br />EL. 5384.50 <br />A <br />CONCRETE <br />TRICKLE <br />CHANNEL <br />24" <br />i T <br />10 YR ORIFICE PLATE <br />4" TYP. FOR PRECAST --t <br />6" TYP. FOR CAST IN PLACE <br />OETEN'IION POND <br />OUTLET N.T.S.STtUCTURk <br />PLAN <br />N.T.S. <br />18" PIPE <br />,,z <br />ST ST <br />TOP OF GRATE <br />EL 5387.20 <br />2' x 2' x 1/4" THICK <br />STEEL PLATE <br />4.0" DIA. HOLE IN <br />STEEL PLATE <br />100 YR ORIFICE PLATE <br />N.T.S. <br />• - 24" <br />A <br />18" STORM <br />100 YR ORIFICE PLATE <br />HEREBY CERTIFY THAT THIS PLAN <br />FOR THE FINAL DRAINAGE DESIGN OF <br />REPLAT A, LOT 2, LOUISVILLE NORTH, <br />TENTH FILING, WAS PREPARED UNDER <br />MY DIRECT SUPERVISION AND IN <br />ACCORDANCE WITH THE PROVISIONS <br />OF THE CITY OF LOUISVILLE STORM <br />DRAINAGE DESIGN AND TECHNICAL <br />CRITERIA FOR THE OWNERS THEREOF. <br />MARK P. DOUGLAS <br />REGISTERED PROFESSIONAL ENGINEER <br />STATE OF COLORADO No. 29462 <br />ST <br />EXISTING CURB CUT <br />GRADING AND DRAINAGE PLAN <br />REPEAT A <br />LOT 2, LOUISVILLE NORTH <br />TENTH FILING <br />LOUISVILLE, COLORADO <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 />RGB Date Scale <br />JAS <br />4/21/95 <br />Revision <br />WHM 1 <br />2 <br />J <br />Survey Sheet 1 Drawing no. <br />1"=20' Page <br />Description <br />C.O.L. COMMENTS <br />C.O.L. COMMENTS <br />of 1 95252 <br />Date Project no. <br />6/5/95 95252 <br />6/26/95 <br />z <br />m <br />JJ <br />Ha8VvnN 9Nlnnada <br />co <br />