Berny's photos with the keyword: Hoover Dam

The left bank Arizona Power House with the turbine outlets. Above is the bypass outlet. scanned slide, Minolta X700

Hoover Dam is protected against a uncontrolled overflow by two flood spillways, one on the Nevada side and die other on the Arizona side. The spillways are controlled by drum gates and the overflow goes into side channels and huge 15 m wide tunnels to the tailwater. The total capacity is 11000 m³/s. The large spillway tunnels have only been used twice, for testing in 1941 and because of flooding in 1983.

There are two powerhouses on each river side. This image shows the generators on the Nevada side, the turbines are situated below. In total there are the following turbines: 13×130 MW, 2×127 MW, 1×68.5 MW, 1×61.5 MW Francis-type, and 2×2.4 MW Pelton-type. The total power is 2080 MW, which is a lot more than the biggest nuclear power plant in Germany, which is Isar/Ohu 2 with 1485 MW - and it's renewable energy! This image ends the series about Hoover Dam. (Scanned slide, Minolta X700) HFF and a sunny weekend,my friends! Stay safe and take care!

The two intake towers (Nevada side) upstream of Hoover Dam, in Lake Mead. See this Link: ► Upstream view with intake towers The water level in 1986 was much higher than now. The Colorado river flow decreased dramatically and the water level decreased for about 40 m. ► Poly's Hoover Dam Pics ► Stefan's view scanned slides, Minolta X700

Hoover Dam is protected against an uncontrolled overflow by two flood spillways, one on the Nevada side and the other one the Arizona side. The spillways are controlled by drum gates and the overflow goes into side channels and huge 15 m wide tunnels to the tailwater. The total capacity is 11000 m³/s. The large spillway tunnels have only been used twice, for testing in 1941 and because of flooding in 1983. scanned slides, Minolta X700

View from the left bank power station downstream. The Hoover Dam is a concrete arch-gravity dam in the Black Canyon of the Colorado River, on the border between the U.S. states of Nevada and Arizona. It was constructed between 1931 and 1936 during the Great Depression and was dedicated on September 30, 1935, by President Franklin D. Roosevelt. Its construction was the result of a massive effort involving thousands of workers, and cost over one hundred lives. Originally known as Boulder Dam from 1933, it was officially renamed Hoover Dam for President Herbert Hoover later. Height: 221.4 m (in 1936 the highest dam in the world) Length: 379 m Width: 14 m at crest, 200 m at base Reservoir capacity (Lake Mead): 35200 km³ total, 19554 km³ active Catchment area: 435000 km² Max. hydraulic head: 180 m Installed power: 2080 MW (2.08 GW) Annual energy production: 4.2 TWh Look at the following interesting Wikipedia-Links: ► Upstream view with intake towers ► Ansel Adams photography ► Downstream view with new bridge (opened 2010) ► Wikipedia

A view down the concrete wall to the left bank power station on Colorado river. More informations will be given with the next image. The architectural dam height is 221 m. scanned slide, Minolta X700

A view down the concrete wall to the 2 power stations. More informations will be given with one of the next images. The dam is 221 m tall. ► Poly's Hoover Dam Pics scanned slides, Minolta X700

Looking downstream from Hoover Dam to the Colorado's canyon - Nevada/USA scanned slides, Minolta X700