Laserfiche WebLink
. <br />� <br />abutment are excessive and should be controlled with an upstream PVC liner and <br />enhanced drainage system. 'The outlet reliability and capacity needs to be improved by <br />installation of a new modern gate and vent shaf�. Spillway capacity needs to be increased <br />to pass the proposed new SEO regulations. <br />4. Rehabilitation costs to allow operating of the reservoir at fuller stages is estimated at <br />$15.8 million. <br />5. A 10-foot enlargement appears feasible, but additionaI detailed studies of the reservoir <br />landslides is warranted prior to proceeding with enlargement plans. We estimate the <br />reservoir could be enlarged 10 feet or 11,000 acre-feet at a cost of $35 million. This <br />translates to a cost of less than $3,200 per acre-foot. <br />P\0246 CDM Engircas�0246.00i.W Rio GrsMe Resmoa Entargement SNdylTechnical Memo.doc <br />/ <br />�. <br />r.� /.. � -6- <br />�: ; <br />,a,. <br />