LA GRANGE DAM DON PEDRO RESERVOIR LA GRANGE DAM RESERVOIR DAM STATISTICS DAM
FACTS ORIGINAL HEIGHT
127.5 The original height of La Grange HEIGHT Dam FEETORIGINAL 127.5 The original height of
LA GRANGE DAM HISTORY
FEET La Grange Dam
Located approximately a mile and a half above the town of La Grange, on the Tuolumne River, the La Grange Dam is among the oldest dams operating in California. When it Located approximately a still mile and a half above the townwas of La Grange, on the Tuolumne River, the dam La in the completed in 1893 it was the highest overflow Grange Dam is among dams still operating United States, built at athe costoldest of $550,000.
in California. When it was completed in 1893 it was the highest overflow dam United States, builtTuolumne at a cost La Grange Dam has in onethe basic purpose: diverting of $550,000. River water into the irrigation canal systems of the Turlock and Modesto Irrigation Districts.
La Grange Dam has one basic purpose, diverting Tuolumne watervery into the irrigation canal systems of Unlike River most dams, little water is stored behind La Grange the Turlock and Modesto Irrigation Districts. Dam. Water is released upstream from the Don Pedro Dam Powerhouse, where it flows through a steep canyon to the La
Unlike most dams, very little water is stored behind La Grange Dam. Once it reaches the dam, the water flows three Grange Dam. Water is released upstream from the Don different ways. It can flow into either the Turlock or Modesto Pedro Dam Powerhouse, where it flows through a steep Irrigation District tunnels, the head of each District’s canal canyon to the La Grange Dam. Once it reaches the dam, system, or into the river. On rare occasions, when water is the water flows three different ways. It can flow into either abundant, it flows over the top of the dam and directly into the the Turlock or Modesto Irrigation District tunnels, the head river. of each District’s canal system, or into the river. On rare occasions, when water is abundant, it flows over the top 1924,and TID constructed thethe La Grange of theIndam directly into river. Powerhouse which is
capable of generating 5 megawatts. The maximum amount of waterTID thatconstructed is able to go through powerhouse is 550 CFS. In 1924, the Lathe Grange Powerhouse
which is capable of generating 5 megawatts. The maximum amount of water that is able to go through the powerhouse is 550 CFS.
TURLOCK IRRIGATION DISTRICT
/company/TurlockID
ADDITIONAL HEIGHT 131ADDITIONAL HEIGHT 131 Height 18 inch and 24 inch Height afterafter 18 inch and 24 inch FEET were added in and 19231930, and 1930, were added in 1923 FEET capscaps respectively. respectively
296CREST ELEVATION CREST ELEVATION 296 Elevation of LaofGrange Dam Dam Elevation La Grange FEET FEET WIDTH 2424CREST Crest width Grange Dam CRESTof LaWIDTH FEET Crest width of La Grange Dam
FEET
WIDTH 96 BASE Base thickness of La Grange Dam FEET96 BASE WIDTH
Base thickness of La Grange Dam
FEET 16.5 FLOW OVER
FEET
To date, the highest flow over the dam was 16.5 feet in 1911 and 1950
OVER 16.5 FLOW To date, the highest flow over the FEET dam was 16.5 feet in 1911 and 1950
@TURLOCKID
209.883.8300 / TID.org