How much did the general construction contract for Wanapum Dam on the Columbia River cost?
Wanapum Dam is a concrete and earthfill hydroelectric dam on the Columbia River about six miles downstream of Vantage, Washington, owned by Grant County Public Utility District. Construction began in July 1959 and power generation started in July 1963; the dam is 8,637 feet (about 2.6 km) long and 185 feet high from the deepest excavation, with ten generating units. Grant PUD lists the general construction contract at $93,277,690 and says the dam was paid for with revenue bonds, not tax money.
Contract value
$93.2777 million
Cost basis: 1963
Williamborg 01:57, 28 April 2008 (UTCPublic domain
Cost evidence
Basis of the published figure
Contract value1963
Project metrics
Key dimensions
- Total lengthGrant County PUD (archived copy, 2014)
- 2,632.6 m
- HeightGrant County PUD (archived copy, 2014)
- 56.4 m
- PowerGrant County PUD
- 1,221.6 MW
Project record