Record Details
page 92
Digital Collections at BYU
| Field | Value |
|---|---|
| Title | page 92 Final supplement to the final environmental impact statement : Diamond Fork System, Bonneville Unit, Central Utah Project, page 92 |
| Coverage | Electronic reproduction; |
| Format | 92 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 ili lii AFFECTED environment AND environmental consequences subsequent to the glacial activity other erosional agents have altered and sculptuz sculptured ad the topography mass wasting was particularly active and numerous slumps landslides and talus accumulations are conspicuous along the higher benches seismotectonic studies in the project area have defined three active faults and have assigned maximum credible earthquakes ok 0 richter scale magnitude of 6.5 65 65 for the stinking springs fault 7.0 70 70 for the strawberry fault and 7.5 75 75 fo foc for the wasatch fault zone the stinking springs and strawberry faults are located approximately 9 miles and 4.5 45 45 miles respectively east of the inlet portal of syat tunnel and the wasatch fault is located about 20 miles west of the portal earthquakes occur an average of every 2200 years on the stinking springs and strawberry faults recent detailed geologic studies by woodward clyde consultants have documented the 0 displacement L rate of the wasatch fault they concluded that earthquakes in the magnitude range of 6.5 65 65 to 7.5 75 75 occur an average of evry every evary 500 to 2600 years on the fault segments studied existing geology of feature sites syar tunnel const construction ction action of the inlet portal of syar tunnel was completed in 1984 as part of tue strawberry tunnel rehabilitation the remaining portion to be constructed will encounter shale sandstone limestone and siltstone of the tertiary uinta and green river formations several faults are expected to be crossed by the tunnel also considerable ground water up to 10 cfs cs is expected to be encountered over the tunnel length the outlet portal would be located at rays valley geologic investigations include research of existing data surface mapping drilling and sampling with core holes sixth water aau Agu aqueduct educt sixth water pipeline sixth water pipeline would be constructed entirely in the tertiary age green river formation the green river formation is predominantly shale with lesser amounts of limestone sandstone and siltstone the fo formation nation weathers to rounded slopes with occasional limestone ledges up to 3 feet high the bedding dips gently 5 to 15 degrees to the northeast four faults are known to cross the alignment seven test pits pita two drill holes three exploratory trenches and numerous hand auger holes have been excavated along the pipeline alignment geologic exploration is essentially complete and a geologic design data report is curren currently L ly being compiled sixth ater water shaft and tunnel the sixth water shaft and tunnel would be constructed in tertiary age green river colton 92 dod 101 0 |
| Identifier | http://cdm15999.contentdm.oclc.org/cdm/ref/collection/WesternWatersProject/id/13062 |
