Record Details
page 54
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 54 Central Utah Project, Bonneville Unit : Diamond Fork Power System : final Environmental Impact Statement, page 54 |
| Coverage | Electronic reproduction; |
| Format | 54 text/PDF |
| Rights | Brigham Young University; http://lib.byu.edu/about/copyright/generic.php Public Domain Public |
| Language | English; eng; en |
| Relation | Central Utah Project; Western Waters Digital Library; CHAPTER 111 III lii alternatives recreation facilities would include full use areas at fifth water reservoir and just below monks hollow dam and a day use area at monks hollow reservoir in addition two existing campgrounds along diamond fork below the proposed monks hollow full use area would be enlarged to replace two campgrounds above the reservoir which would be abandoned and trailheads trail heads would be provided at fifth water reservoir and at a site along diamond fork downstream of the day use area the fishery below monks hollow dam would be considerably enhanced as a result of diverting historically high flows from the stream into the diamond fork pipeline limited flatwater fl atwater fisheries would be created in fifth water and monks hollow reservoirs mitigation for big game and other wildlife habitat losses would consist of the acquisition habitat improvement and management of 4440 acres of land for wildlife PROJECT facilities AND MEASURES dams and reservoirs fifth water dam would be constructed just below rays valley on fif afif fifth th water creek about 12 miles upstream f from fron rom the conf confluence luence of diamond fork and the spanish fork river the dam would be an earth and rockfill rockfall rock fill structure about 309 feet high with a crest length of 1300 feet and a crest width of 30 feet an outlet inlet structure for the powerplant power plant penstock would be located upstream from the right abutment and would have a capacity of approximately 10000 cfs cs with the reservoir at a water surface elevation of 7100 feet A river level outlet works would be located in the left abutment of the dam the outlet works would have a capacity of 370 cfs cs at a water surface elevation of 7100 feet and would provide a means of emergency reservoir evacuation normal discharge would range from 0.5 05 05 to 20 cfs cs for downstream fishery releases A dike would be constructed across the south arm of the reservoir the dike would have a crest length of 800 feet and a maximum height of 70 feet above the original ground surface an emergency spillway would be constructed through a saddle between fifth water dam and dike to ensure thac chat that chac the maximum probable flood could be safely stored and routed through the reservoir the spillway would have a crest elevation of 7103 feet fifth water dam would have a total volume of 5000000 cubic yards of embankment material and the dike would have 185000 cubic yards material source areas for project features are shown on figure 7 geologic conditions at the sites for fifth water dam and dike are favorable for the earth and rockfill rockfall rock fill structures planned bedrock at the damsite adamsite is of the green river colton undifferentiated formation consisting of calcareous siltstone with some interbedded limestone and shale suitable rockfill rockfall rock fill materials for the dam and dike are available in fifth water canyon borrow area J figure 7 about 0.4 04 04 mile downstream from the dam 54 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/3185 |
