Seepage Stopped by Prompt Action, Overwhelming Force

Description:
A near failure of Arthur V. Watkins Dam, a leaking U-shaped earth-fill levee structure located 10 miles northwest of Ogden, Utah, is prompting a compressed-schedule repair, squeezing two years of work into one. The dam was within a few days of failure, U.S. Bureau of Reclamation officials say, threatening lives and major flood damage to surrounding property. General contractor Geo-Solutions Inc., New Kensington, Pa., is consequently running double shifts and using specially modified equipment to speed up repair work. It designed a 150-cu-yd-per-hour slurry plant fed by twin 60-ton silos for three times the output of a typical facility. Geo-Solutions additionally customized a Komatsu PC1250 hydraulic excavator with a hybrid boom stick that can extend 85 ft for tough excavations.

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