Grant Co. PUD Exploring Options to Fix Wanapum Dam Fracture - NBC Right Now/KNDO/KNDU Tri-Cities, Yakima, WA |

Grant Co. PUD Exploring Options to Fix Wanapum Dam Fracture

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Grant County PUD is studying options to repair the 65-foot crack in a spillway pier at the Wanapum Dam. Grant County PUD is studying options to repair the 65-foot crack in a spillway pier at the Wanapum Dam.

VANTAGE, WA - Grant County PUD is working to conduct a forensic analysis on the cause of the fracture in a spillway pier at Wanapum Dam.

Methods used during the analysis include precise drilling into the monolith, ground-penetrating radar, and echo-imaging technology. The utility says each form of technology will help them to determine the location and geometry of the fracture. 

Experts will then use the data to determine how to best repair the structure and possibly raise the elevation of the reservoir during the restoration phase.


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