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C153514 Feasibility Study
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C153514 Feasibility Study
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Last modified
11/19/2009 11:22:24 AM
Creation date
10/5/2006 11:54:38 PM
Metadata
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Template:
Loan Projects
Contract/PO #
C153514
Contractor Name
Farmers Water Development Company
Contract Type
Loan
Water District
60
County
San Miguel
Bill Number
SB 87-15
Loan Projects - Doc Type
Feasibility Study
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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I' <br />I <br />I' <br /> <br />5.0 SUMMARY OF EXISTING CONDITIONS <br /> <br />5.1 General <br /> <br />The purpose of this section of the report is to summarize and <br />interrelate the results of the individual field and laboratory <br />programs to provide a clearer picture of existing conditions and <br />possible causative mechanisms for the historic sinkhole activity at <br />Gurley Reservoir. The history, configuration, constitutive <br />materials and existing condition of the outlet works, dam <br />foundation, and embankment will be discussed separately in the <br />following sections. <br /> <br />5.2 Outlet Works <br /> <br />The outlet works at the Gurley Reservoir Dam consists of the <br />fo 11 owi ng components, descri bed as encountered when travers i ng the <br />system from upstream to downstream: <br /> <br />1. A steel and concrete intake structure with a 36 inch by <br />36 inch square vertical inlet equipped with a slide gate. <br />The concrete is believed to be reinforced with steel bars <br />of unknown diameter, length and location; <br /> <br />2. Approximately 150 ft of concrete lined tunnel with a six- <br />sided cross section and 11.1 sq ft of flow area; <br /> <br />3. Approximately 17 ft of 30-inch diameter steel pipe. The <br />steel pipe contains an open seating bracket for a sl ide <br />gate which is currently rusted into place in the tower <br />above the steel pipe. The pipe also has an open 1.5 inch <br />by 1.5 ft hole cut into the top of the cross section just <br />downstream of the rusted slide gate housing which <br />provides access to the outlet conduit from the tower; <br /> <br />-11- <br />
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