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PROJ00486
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Last modified
11/19/2009 11:43:26 AM
Creation date
10/5/2006 11:57:28 PM
Metadata
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Template:
Loan Projects
Contract/PO #
C153502
Contractor Name
Santa Maria Reservoir Company
Contract Type
Loan
Water District
0
County
Hinsdale
Bill Number
SB 88-30
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 />zoned earthfill structure with a crest length of 310 feet, a maximum <br />height of 92 feet and a crest width of 18 feet. The crest is at ele- <br />vation 10,290 feet. The upstream slope is riprapped and the design <br />slopes are 2.5 horizontal to 1 vertical (2.5H:IV) above elevation <br />10,270 and 3H:1V for the remainder. The designed do~mstream slope is <br />2.5H:1V and is also partially covered with medium to large rocks. <br />Details of Continental Dam are shown on Figure 1-2, and the area capa- <br />city curve is given in Figure 1-3. <br /> <br />The spi 11 way is a 495-foot long rei nforced concrete structure <br />located at the right abutment contact. The spillway crest, a 140-foot <br />long side spill weir perpendicular to the dam crest, is at an eleva- <br />tion of 10,279, or about 11 feet below the crest of the dam. Spills <br />drop immediately into a concrete channel chute which varies in shape. <br />Upstream of the dam crest the spillway is trapezoidal in shape with 45 <br />degree side slopes, and the bottom width varies between 10 and 20 <br />feet. The spillway transitions to a rectangular shape at the dam crest <br />and the bottom wi dth varies between 12 and 20 feet. The spillway <br />chute is provided with cutoff walls through the embankment crest. A <br />concrete slab stilling basin dissipates energy at the bottom of the <br />spillway chute. <br /> <br />The outlet works is located beneath the embankment approximately <br />100 feet from the spillway structure. The outlet works consists of a <br />reinforced concrete intake, a reinforced concrete conduit, and a rein- <br />forced concrete valve tower. <br /> <br />1-2 <br /> <br />i <br />.J <br />
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