Laserfiche WebLink
<br />elevation. A limit on maximum water surface reached during a routing <br /> <br /> <br />of the rDF can be achieved by providing spillways and outlet works with <br /> <br /> <br />adequate discharge capacity. Backwater effects of floodflow into the <br /> <br /> <br />reservoir must specifically be considere.. when constraints on water <br /> <br /> <br />surface elevation are evaluated. Reservoir constraints may include the <br /> <br /> <br />following: <br /> <br />. Topographic limitations on reservoir stage which exceed the <br />economic limits of dike construction. <br /> <br />. Public works around the reservoir rim which are not to be re 1 oc ated. <br /> <br /> <br />such as water supply facil it ies and sewage treatment plants. <br /> <br />. Dwellings, factories, and other development around the reservoir <br />rim which are not to be relocated. <br /> <br />. Loss of storage capacity from sediment accumulation in the <br /> <br />portion of the reservoir used for routing the IDF must be refl ected <br /> <br /> <br />in flood routings. Deposition" in reservoir headwater areas may <br /> <br /> <br />build up a delta which can increase flooding in that area, as well <br /> <br /> <br />as reduce flood storage capacity, thereby having an effect on <br /> <br /> <br />rtlutings. <br /> <br />. Geologic features such as terrain that may become unstable when <br />inundated and result in landslides which would threaten the safety <br />of the dam, domestic and/or other developments, or displace needed <br />storage capacity. <br /> <br />c. Reservoir requlation requirements. - Considerations to be eval- <br />uated when establishing flood routing criteria for a project include <br />16 <br />