Laserfiche WebLink
<br />SENT BY: ~OR-WCAOS SO <br /> <br />2 -17 - 99 10: 57 j <br /> <br />970 385 6539 -> <br /> <br />303 866 4474j <br /> <br />#10/11 <br /> <br />[: <br /> <br />F. FLOOD OPEMTING CRITERIA <br /> <br />Reservoir capacity allocacions provide for no scorage permanen~ly asslsned to flood <br />control. Planned flood concrol operations are restricted to control of anovaelt <br />floods by affecting seasonal evacuation of conservation storage on the basis of <br />forecasts of snowmelt runoff. Concrol of runoff from rainfall events is not a <br />specific project purpose but will be accomplished usIng scorage .pace in the <br />reservoir or surcharge storage. InformaCion on rainfall intensity and duration <br />forecasts is available from National Veather Service offices referenced in the <br />Communications Directory. <br /> <br />Snowmelt flood concrol operations will be controlled by the Flood Control Diagram <br />approved by the Corps of Engineers and included in Appendix D. Reservoir <br />operations shall be planned so that available storage apace is equal to or greater <br />than the space required in the Flood'Control Dtalram. If available storage space <br />becomes less than the flood control space required, water shall be released as <br />rapidly as possible vithout causing flows 1n the Pine River to exceed 2.500 efs. <br />Releases shall not be changed more than 500 efs in any 2-hour period. <br /> <br />If flooding do~tream of the dam appears likely, implement che procedures for <br />flooding in the Emergency ACCIon Plan. <br /> <br />If che reservoir elevacion exceeds 7665.0, the spillway lates should be operated in <br />accordance with Drawing 191-D-568, App.ndl~ D. This drawins shows the minimWl <br />opening for all three spillway gates at reservoir elevatione of 7665.0 or greacer. <br />Operacion of the spillway gates ac smaller openIngs chan chose required could result <br />in over coppIng and subsequenc faIlure of the dam. <br /> <br />111-7 <br /> <br />Revised 03/94 <br /> <br />