WENATCHEE, Wash. — A crack in the Wanapum Dam on the Columbia River and the ensuing reduction of water levels have prompted crews to carry out about $7 million worth of work on fish ladders for chinook salmon. Existing fish …
A crack in the Wanapum Dam on the Columbia River and the ensuing reduction of water levels have prompted crews to carry out about $7 million worth of work on fish ladders for chinook salmon. The Wenatchee World reports that existing …
BEVERLY, Wash. – The large crack in part of the Wanapum Dam spillway may have been there long before divers detected and photographed it Feb. 27. The crack, which measured about 2 inches thick by 65 feet wide when divers …
BEVERLY — A crack discovered in a spillway at Wanapum Dam has closed by almost an inch, the result of lowering the level of the Columbia River behind the dam, according to Grant County PUD officials. Engineers surveyed the spillway …
EPHRATA — The root cause of a crack in the base of a spillway pillar at Wanapum Dam was an error in the math calculations during the design phase. The work necessary to fix the crack, and the whole dam, could mean the …
EPHRATA, Wash. — A crack in a spillway pier at the Wanapum Dam on the Columbia River is a serious situation, but not a threat of downstream flooding even in a worst-case scenario, a spokesman for the Grant County Public Utility …
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There's no immediate threat to public safety from the crack in the Wanapum Dam, Grant County Public Utility District spokesman Thomas Stredwick said Friday. The dam is located just downstream from where Interstate 90 crosses the …
BEVERLY - The Grant County PUD said that tension from water pressure caused the 65-foot crack in the Wanapum Dam spillway. The crack was not caused by seismic activity, foundation settlement, operation of the spillway gates, or …
“These are not outside the norm.” Divers discovered a 65-foot crack across part of Wanapum Dam’s concrete spillway in February, and workers have lowered the reservoir level by 26 feet to reduce pressure on the dam. That left the upstream …
SPOKANE — The crack in a spillway pier at the Wanapum Dam has been downgraded to a “non-failure emergency,” meaning the pier is no longer considered at risk of collapsing, the Grant County Public Utility District said Wednesday. …