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<br />. <br /> <br />. <br /> <br />~ <br /> <br />, <br />" <br /> <br />B. <br /> <br />Rehabilitatioll Alternative No.2: Raise Normal Water level to GH 27.0:!;. <br />Raising the normal ....ater level to GH 27.0 could require raising the <br />embankment by 1.0 to 4.0 feet. Based on the reservoir flood hydrology <br />and the wave run-up in the reservoir, we would estimate the amount of <br />increased storage caPllcity, evaluate design requirements for enlarging the <br />existing dams, and P"lpare feasibility level cost estimates for the construc- <br />tion of the dam enlargements and possible spUlway modifications, <br /> <br />e <br /> <br />C.l , Rehabilitation A1tema1ive No. 3A: Raise NonnaI Water level to GH 30.0:1:. <br />This dam rehabilitation alternative representS what we understand to be the <br />reasonable maximum reservoir water level which may be obtainable without <br />performing a significant relocation and reconstruction of the inlet canal and <br />river diversion structure. The maximum level of this reservoir storage <br />increase would be determined in Task 4. Raising the normal water level to <br />GH 30.0 would POSSibly require raising the dams by 4.0 to 7.0 feet, <br />Modifications to the outlet works intake lOwer and conduit, and the <br />spillway, would be required. Based on the reservoir flood hydrology and the <br />wave run-up in the reservoir, we would estimate the amount of increased <br />Storage capacitY, evaluate design requirements of raising and enlarging the <br />existing dams, and prepare feasibility level cost estimates for the construc- <br />tion of the dam enlargements. and probably spillway and outlet works <br />modifications, <br /> <br />C.2. Rec:onstruction A1tetllirlive No. 3B: Raise NonneI Water Level to GH <br />30.0:1:. This alternative would evaluate possible dam sites, design <br />considerations and feasibility level costs associated with reconstructing one <br />or more of the JUlesburg dam embankments at the existing or immecfl<lte _ <br />downstream locations as an alternative to raising the existing dams. The .. <br />increase in potential Storage capaCity due to the relocations would also be <br />evaluated. <br /> <br />1 2 Reoort. Prepare a report to present the results of the investigations. Included wm <br />be brief descriptions of the in\leStigations, results and conclusions, and conceptUal <br />design plans. <br /> <br />This scope presented above is ambitious, but we believe it is necessary in prder to <br />adClress the District's Questions. In order to provide this information within the proposed <br />bUdget, we again emphasize that wE! are preparing feasibility level detigns and feasibility <br />level opinions of probable construction costs, <br /> <br />PROPOSAL <br />PAGE 4 <br /> <br />e <br />