Don Pedro Dam

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The Don Pedro Dam, since 1971 also known as the Old Don Pedro Dam, was a dam across the Tuolumne River in Tuolumne County, California. The structure still exists and is flooded underneath Don Pedro Reservoir, which is formed by the New Don Pedro Dam.

Construction

File:Don Pedro Sainsevain.png
Don Pedro Dam is named after Don Pedro Sainsevain.

It was a solid concrete gravity dam that was Script error: No such module "convert". high, Script error: No such module "convert". wide, Script error: No such module "convert". thick at the crest, and Script error: No such module "convert". thick at the base. It was completed in 1923 where the Tuolumne River had carved a narrow gorge with walls of solid rock about a mile (2 km) below Don Pedro Bar. The reservoir created by this dam contained Script error: No such module "convert". of water when full, 14.3% of today's capacity.

A 15 megawatt power plant was part of the dam's original design, and two more 7500 kilowatt generators were added in 1926 for 30 megawatts total, just 15% of today's capacity. The old dam still exists about Script error: No such module "convert". upstream from the new 1971 dam, and since the old dam topped out at just Script error: No such module "convert". above sea level it is now under some Script error: No such module "convert". of water when the new reservoir is full.

References

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External links

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