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,., Erosion dnd sedimentation problems should be minimized. PRINCIPLES flood control is d $ubsystem Of the total urban system. o Flood control 1s d space allocation and ruooff maniIJenent profile-n. o Floodwaters and urban runoff are resources which,whenmanaged, should contribute to the well being of the nen~er region. o The flood cOr'ltrol management strategy should be a m(J1ti~p(Jrpose and m(Jlti~means effort. Conflicting d",nands on the limited waters of the South Platte River should be optimized. WildlHe and riparian ~egetation conditions should be im* proved. Changes to the ri ver shoul d be cons; s tent with overa 11 reg i on ~ 1 goals and objectives. GOALS OBJECTIVES One-Hundred Year Design Flood. The lOO_yearf1oodshouldbethebasisfor floodplain planning In the South Platte River corridor. Theonepercent cr1terion means that ramifications of the laO-year flood must always be evaluated as to impact and land use optimization. It does!l2.irnean that overballk flooding during the lOa-year flood must be eliminated. The planning and engineering for the South Platte River should reduce future flood damage while systematically reducing existing flood damage potential. Well balanced, non-structural and structural means should be utilized to reduce flood problems. Exposure Of peopie and property to flood halards should lle reduced. Transportation. Roads, highways, and bridges should not cause flood prob_ lems or increase flood related damages. Transportation should not conflict with the recreational and park use of the corridor withOut mitigation measures. ~ridqe crossings of the South Pl atte River should not cause backwater effects and should have piers and abutments designed to resist erosion by the river. TIle flood management of the South Platte River should be coordinated with water supply, sewerage, land use, building development, recreation, trans_ portation,wiidlife, and open space planning programs of themetr o area. Eros ion and Sed imentation , Bed and bank cutt i nq by the ri ~er. and re 1 ated sediment deposition effects should be oninimized. EroSion and sedimentation causing acti~ities affect safe flood carrying capacity and therefore should be subject to f100d control regulations. Tneexisting floodplains from Chatfield OillltO Columbine Valley, and from Sand Creek to Brighton ~hould be permanently managed and regulated. El se- where, regulation should constitute an interim measure untii loo-year channel impro~ements are made. Access Trai 1. Access to the ri~er should be ma inta; fled for operational and maintenance purpose~, and to afford ready inspect ion of prOblem areas. Such access trails shall,where practical, ,,,,rye amulti_use-functionfof hiking and runnin9. biking, and non-motorized transportation. TIle potenti al of the ri~er corridor for parks and recreation should be ex- ploited to increase land values, sodal harmony, health and to r!'<'Juce t.lepende"~t' 0" the dutumubi 1e. Continuous Linear Boating. Safety and enjoyment M the river ~hould be pro~ided for cont inuous boati ng through the Denver area. All OifllS and cneddd<l1sshuuld have safe hoat chutes s<Jitahle for tne typical boater for