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General Information

Beginning of works: 1966
Completion: 1972
Status: in use

Project Type

Structure: Gravity dam
Function / usage: Hydroelectric dam / plant
Flood-control dam
Material: Concrete dam

Location

Location: , , ,
Impounds:
  • Clearwater River
Coordinates: 46° 30' 54.29" N    116° 17' 45.80" W
Show coordinates on a map

Technical Information

Dimensions

height 218.5 m
crest length 1001.9 m
capacity for electric power generation 380 000 kW

Cost

cost of construction United States dollar 312 000 000

Materials

dam structure concrete

Chronology

1980

A crack of almost 72 meters in length on the reservoir side causes a leak. Reparation costs: $ 1 million.

Notes

Named after Henry Dworshak, a U.S. Senator for Idaho.

Participants

Relevant Web Sites

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  • About this
    data sheet
  • Structure-ID
    20007869
  • Published on:
    17/01/2003
  • Last updated on:
    27/09/2022
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