Hoover Dam and Lake Mead, spanning the Arizona-Nevada state line, are located in the Black Canyon of the Colorado River about 35 miles southeast of Las Vegas, Nevada. It is a concrete thick-arch structure, 726.4 feet high and 1,244 feet long. The dam contains 3.25 million cubic yards of concrete; total concrete in the dam and appurtenant works is 4.4 million cubic yards. http://www.usbr.gov/lc/hooverdam/
Springtime releases at historic Arrowrock Dam in Boise, ID. Photo: Dave Walsh, Bureau of Reclamation
Tracy Fish Facility at Sunrise - The Tracy Fish Collection Facility (TFCF), located in the Central Valley of California near Stockton, was developed and built by Reclamation with interagency cooperation in the 1950’s as part of the Central Valley Project (CVP). The purpose of the TFCF was to protect fish entering the Delta Mendota Canal (DMC) by way of the Tracy Pumping Plant (TPP). These facilities provide multi-use water for the region of the Central Valley called the Sacramento-San Joaquin Delta, or the south delta. http://on.doi.gov/LVUHKL
Photo: Rene Reyes, Reclamation
First filled in 1983, New Melones Lake has 12,500 surface acres when full and more than 100 miles of scenic shoreline to explore. The lake is framed by topography ranging from the rugged Stanislaus River Canyon cliffs to oak-studded golden Sierra foothills. Fishermen number New Melones Lake among their favorites for its excellent trout, bass, crappie and catfish action.
Completed in 1913, the Lake Tahoe Dam is a concrete slab and buttress structure with 17-vertical gates. It is 18-feet high and 109 feet long. Flows are controlled by 17-gates, each 5-ft by 4-ft. Reclamation modified Lake Tahoe Dam in 1987 under the Safety of Dams program. Reclamation constructed reinforced concrete stabilizing walls in the existing embankments, concrete embankment caps over both embankments, and reinforced embankment and slope protection.
Looking down relief well #5 at Jamestown Dam. Jamestown Dam is a zoned, rolled earthfill structure with a structural height of 110 feet. The spillway is a morning-glory inlet leading to a 9.5-foot-diameter concrete conduit near the right abutment of the dam with a capacity of 2,930 cubic feet per second. The outlet works, near the left abutment of the dam, are controlled by two 5- by 6-foot high-pressure slide gates with a capacity of 2,990 cubic feet per second, and discharge into a 13.5-foot high, horseshoe-shaped concrete tunnel. The reservoir has a total storage capacity of 220,978 acre-feet from streambed to elevation 1454.0, the top of exclusive flood control, of which 185,435 acre-feet are for flood control. http://www.usbr.gov/projects/Facility.jsp?fac_Name=Jamestown+Dam
Photo by Randy Ehlis, DKAO, U.S. Bureau ofReclamation
