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<br />A major change on Ral ston Creek was to sel ect a channel capacity for the <br />10-year flood, rather than the 100-year flood as was done in 1977. This <br />results in a project which will be less disruptive to neighborhood inte- <br />grity. The former pl an called for relocation of many residences to allow <br />construction of the larger channel. <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />upgrading to a high hazard structure. Further, <br />1 arge dam on Van Bibber Creek above Ward Road. <br />to be less favorable than alternative methods of <br /> <br />the early work called for a <br />In 1985 thi s dam was found <br />reducing flood peaks. <br /> <br />Item <br /> <br />DIscharge <br /> <br />10-year 0 ot mouth (cfs) <br /> <br />1 DO-year Q at mouth (efs) <br /> <br />BrIdges <br /> <br />Bridges to be Improved to 0100 <br /> <br />It is recommended that the final design and construction of the flood con- <br />trol project as described herein be implemented. <br /> <br />I <br />I <br />I <br /> <br />Bridges to be Improved to 0,0+ <br /> <br />Bridges wIth no proposed <br />Improvements <br /> <br />Channels <br /> <br />Q-ass lined channel (m1) <br />European channel (ml) <br />FloodplaIn mgmt. only (ml) <br />Total linear mIles <br />Drop structures <br /> <br />DetentIon <br /> <br />DetentIon facIlItIes <br />o In <br />0'00 out <br />100 <br />Surface area <br />Stor age <br /> <br />Canols <br /> <br />Canal crossings <br /> <br />VI-3 <br /> <br />TABLE VI-l <br />MAJOR FEATURES (F MASTER PLAN <br /> <br />Ral stan <br /> <br />Van Blbber <br /> <br />Leyden <br /> <br />5,300 <br /> <br />1,100 <br /> <br />1,530 <br /> <br />9,800 <br /> <br />2,700 <br /> <br />2,600 <br /> <br />Sh 121 KIpling Street (proposed) AI klre St. <br /> (w/o Oak St. detention) <br />Lemar St. (lower Invert) Kipling St. (existing) Simms St. <br />Ralston Rd. (extensJon) Independence (w/box) <br /> 58th & Garr I son (w/box) <br />68th Aven ue 72nd Avenue <br />Oak Street <br />MI I I er Street <br />Rense II aar PI. <br />615t Avenue <br />Brooks I)- J ve <br />GMrJson Street <br />C&S RR <br />56th Avenue <br />Carr Street IndIana Street Indiana St. <br />(mInor outlet Imps.) <br /> Wadsworth Blvd. Wor d Road <br /> 58th & Newc","b <br /> 58th <br /> <br />0.7 1.0 0.2 <br />2.2 0.4 Ibox culvert) <0.1 <br />2.1 2.8 3.2 <br />5.0 4.2 3.5 <br />9 7 <br /> <br />i'bne <br /> <br />Oak Street <br />2,600 cfs <br />1,300 cfs <br />52 acres <br />187 acre- feet <br /> <br />Layden Lake <br />3,800 cfs <br />2,200 efs <br />46 acres <br />1,152ac-ft <br />+11 0 ac-ft <br /> <br />"'nhart (headgate) <br /> <br />Reno-Juc'- <br />Croke <br /> <br />Hlghllne <br />