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. . . n0232u . .- ',--- , '- CHAPl'ER III PROJECT DEVELOFMENT This chapter presents the results of reconnaissance appraisals made of the seven potential units of the Yampa-White project. Descriptions in the following sections cover the general development and operation plans of each unit. Accompan~'ing the descriptions are unit ma.ps depict- ing the locations of the irrigable lands and the general layout of unit facilities. Pertinent data on the units are summarized for comparative purposes in the table near the front of the re-port. Wessels Unit The Wessels unit io a potential irrigation development for lanus located on the west and south sides of a 23-mile section of the Yampa River in the vicinity of Steamboat Springs in northwestern Colorado, The unit area contains the bench lands above the flood plain of Pleasant Valley south of Ste~boat Springs and the lower parts of th~ Cow Creek drainage west ~f Stecnboat Springs, The unit would provide water for 6,750 acres of land, including 6,030 acres of full service land and 720 e:c-rE;s of supplemental service land. It is also eJqlected to prOVide some incidental bencfits for fish and wildlife conservation, recreation, and sediment control. Unit plan Surplus flows of Yamps River would be regulated in Bear Reservoir .that would be constructed on the river. Water released from the reser- voir, ,as well as some unregulated streamflow surplus to the rights of downstream water users, would be diverted into the Wessels Canal at a diversion dam about three-fourths of a mile downstream from the reser- voir, The canal would deliver the water to farm turnouts and to a few short laterals serving some of the larger tracts of unit lands. Laterals would be provided for distribution of water to the full service lands. Existing distribution systems for presently irrigated lands are adequate for unit development. Artificial drainage would be required for the lands situated in the valley bottoms. Design and construction Bear Reservoir Bear Reservoir on Yampa River would have a capacity of J.l,600 acre- feet, including ~9,000 acre-fe~t of ~ctive capacity and ~,6oo acre-f~~t 23