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N: 13095 <br />E: 31524 <br />N: 1309: <br />E: 31524 <br />NOTE: OUTLET STRUCTURE Ab <br />TO BE DESIGNED BY STRUCTU <br />OUTLET STRUCTURE PLAN VIEW <br />SCALE 1" = 4' <br />x4 -1 /2" LIP (TYP.) <br />1309604.99 <br />3152489 -77 <br />1309599.45 <br />3152499.67 <br />D <br />2.5 <br />CONCRETE CUTOFF WALL <br />6.0' <br />I I r- c- Ivl rNIrrnHr <br />LOW TAILWATER RIPRAP BASIN <br />AT 2.5' RCP OUTLET <br />SCALE 1 " =6' <br />INLET GRATE <br />3.1' 2.5' <br />9" LAYER OF GRANULAR I 6z <br />TYPE 2 BEDDING I mR <br />�g <br />6.0' 10.0 <br />04 <br />i I I i <� <br />COW - S.w <br />\ 4812.5 I 1.0' <br />CONCRETE F.E.S. LCONCRETE CUT -OFF WALL 1 TRIP PE M <br />6.01 x 3.0'D x 8 "T <br />LOW TAILWATER BASIN PROFILE <br />12' <br />SECTION D -D <br />N. T. S. <br />f� <br />d a •' r <br />,! 4 • • d• • • • • 1 di - • d e , • • • • , <br />•.d •.. e <br />4 • a • <br />a .•" • -a a • • • • i t e •. - • v .1 <br />. " 4 .- <br />I <br />• e . .i • • • - 4 • ; <br />. AA , - d <br />• G d , - • • C <br />d . ° <br />A •, <br />• • <br />• . J <br />° . P a - - e _ <br />Ad 4 <br />• l <br />d. A. • ° 4 <br />•d • -d • • • -- D 1•.. • ° 4 • .. <br />� • a <br />•. a - <br />INV. EL= 4813.5—/ 1 30" RCP <br />SUMP PROVIDED FOR OUTLET PIPE <br />SEDIMENT AND SECTION F -F <br />DEBRIS CAPTURE <br />ORIFICE PLATE DESIG <br />N. T. S. <br />ST. VRAIN RIVER <br />FLOOD CONDITION 35' FINISHED GRADE <br />100 YEAR WATER BEYOND SPILLWAY <br />SURFACE EL= 4821.90 TOP OF BERM <br />EL= 4822.0 <br />INSTALL GRATE AS SPECIFIED ON ST. VRAIN LAKES 100 YEAR TYPE M RIPRAP <br />OUTLET STRUCTURE PLAN VIEW DEVELOPED STORM WATER 100 -YEAR SPILLWAY <br />AND BOLT TO STRUCTURE IN SURFACE EL= 4819.60 EL= 4819.60 <br />ACCORDANCE WITH CDOT = <br />STANDARD M- 604 -11 4 _ �— VARIES \� <br />- GRATE <br />PERMANENT WATER 10 6' 1 <br />o ^ / / \ \/ \/ \/ / \/ \ \/ \ \ \ <br />SURFACE EL= 4819.0 / / / \ / / \ \ / / \ \ / / \ \ / /�\ / /� /j� / /{\ /� / \ \/� j� / \ / \ \ /�\ / \ \/ 100 YEAR ST. VRAIN 1 1/4" <br />ELEV= ELEV /= = / / \ / \ \ /� \j� \ /� \j� \jam \ / \\ j\ \jam \jam \jam \ \/� \jam \jam \ \� \ \� \ \ \� \ \� \ \\ RIVER FLOOD ELEV= 4818.5 y <br />1.T COVER ///\//\/\ / \ / / \ / / \ / / \ / / \ / / \ / / \� / \ / / \ / / \// \ / / \ / \ / / \ / / \// // / / // // // // // // •/ <br />/ <br />4 r , /� / / /18 Ol 100 YEAR CHAMBER \ \: /\ \/ / /\ / \/ /\%//%/%/%/%/%/ % \ / % \ / % / \ \ /� \ /� \ / \ \ />> \ / \ \ / / \ \/ \ . / / / \ / / / \ / / / \ / / / \ %j \ \ %// \ //j / \ \ \ \ \ \ \j/ WASHER <br />T -• >�•, . / / / / / / / /// / / / /// <br />✓, %� j \ \/ \ / \\/ �j \ \ / \ \; \\j \ / \\ \ / \ \ \ <br />T.O.P-= 4816.3 0 �� /�: /%. / /�. / /�� /C. / /�./ .//.//. //!. /�. / /�. / /� /� /i. / /i ✓n /% / /i�/ / /i / /i / /i / /i�� / /i� /i , / //TOP- 481.5. 8 // //// /i� / /� / /� /� / /� /% / /� / /� /��i \ /. /� i. <br />INV= <br />13.0 <br />0.83' <br />ORIFICE PLATE TO <br />RESTRICT FLOW TO 5 -YR <br />UNDEVELOPED DISHCARGE <br />OU T= 4813.5 <br />F <br />8OLF 30" RCP @ 1 -25% <br />Qtoo=5 YR HISTORIC DISCHARGE <br />FROM ONSITE FLOW =43 CFS <br />CONSTRUCT SLURRY WALL <br />AROUND 30" RCP <br />BOP= 4812.80 <br />OUTLET STRUCTURE SECTION VIEW <br />SCALE 1 " =3' <br />INV OUT = 4812.5 <br />15/16" CLR. <br />IV <br />d <br />PROVIDE ORIFICE PLATE OPENING. <br />USE 5/16" THICK STEEL PLATE <br />48 "W X 48 "H W/1.18' DIA. ORIFICE. <br />SECURE TO STRUCTURE W/3/8" X <br />2" LAGS /SHIELDS AT t6" O.C., <br />MAINTAIN 1" MINIMUM FROM EDGES. <br />to <br />4 1/2" <br />a <br />3" <br />d a <br />d QOFFS T <br />d <br />4 <br />a 2" d 3" <br />INLET WALL 4 <br />a <br />11/16" X 1" <br />SLOTTED HOLE <br />1 1 <br />' 1/4" <br />SLOT DETAIL <br />5/8" X 8" <br />BOLT <br />GRATE INSTALLATION DETAIL <br />Permit d: <br />Confidental?: <br />Class._ <br />_ <br />Type -Se Q.: ' <br />From �- <br />- <br />To 44 <br />Doc. Name: <br />- <br />Doc. Date (if no date stamp): <br />Specialist: <br />3" <br />1.25' <br />1'3/4" <br />1 1/2" <br />3" x 1/4" <br />>T. 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