WSP01752 - Laserfiche WebLink

Home Browse Search

, '.:"LL~::l~fk:~~~_,;"..:-:::": ;-'-'...',;,"""- c.., ..:"', C'l") N CHAPTER IV PLAN FORMULATION releases, Lake Avery and the White River Feeder Conduit would be smaller. Lake Avery would have a capacity of 42,000 acre-feet, 15,000 of which would be dead and inactive. The White River Feeder Conduit would have a capacity of 2?0 second-feet, a length of 10.8 miles, and be located as shown on the map. The Avery Pumping Plant would have a capacity of 160 second-feet at a design head of 235 feet. In contrast to the previous plan, the Yellow Jacket Conduit would be 15 miles long (instead of 8.6) and there would be no canal at the end. The 9.l-mile Oak Ridge Conduit (a pipeline) would be built instead of a canal. The Yellow Jacket and Oak Ridge Conduits would carry 125 and 35 second-feet, respectively. Economic aspects Construction of the project under this plan is estimated to cost $68.610,000. The annual operation, maintenance, and replacement costs are estimated at $302,000, which is considerably less than in the previous plan. Annual pumping costs included in the above figure are based on the average use of an estimated 1,215,000 kilowatt-hours of power each year at a capacity of 12,000 kilowatts. Estimated annual benefits of $5,758,000 and annual equivalent costs of $5,229,000 indicate a benefit-cost ratio of 1:10 to 1. Environmental considerations Environmental considerations for this plan would be similar to those of the last plan discussed, in that project water would not be developed for oil shale. Thus, releases from Lake Avery would not be available to supplement the flow of the White River. This is where the similarity ends, however. The construction of the North Fork Dam and White River Feeder Conduit would have impacts similar to the oil shale and irrigation emphasis plan. The open waterways of the Morapos Feeder, Oak Ridge, and Curtis Creek' Canals would not result. Some landscape scarring would, however, accompany construction of the Oak Ridge Conduit and a longer Yellow Jacket Conduit. With Oil Shale-- Coal Emphasis Alternative This alternative plan was formulated under an assumption that the emphasis in National Energy policy will swing more strongly toward coal development. This assumption is strengthened by Interior's recent liberal- ization of coal leasing on public lands. Coal is the most abundant energy resource and technology is adequate for its immediate utili<ltion. 41