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Load Test Spreader Beams for Waterweights

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Ice Harbor, McNary, Bonneville and Brilliant Dams

Dix Corporation has designed, built and provided spreader beams to accomodate multiple waterweights used during load tests for large capacity bridge and gantry cranes. The beams have a rated capacity of 638 tons and accomodate 16 water bags, each with a filled capacity of 35 tons. Dix has used the beams to test the 500 ton powerhouse bridge crane at Ice Harbor Dam and the 350 ton powerhouse bridge crane at McNary Dam. Dix has also provided the beam system to others for use in load tests. At Bonneville Dam the beams were used in the 125% load test of the 430 ton bridge crane at Powerhouse Number 2. At Brilliant Dam the beam system was used for the 125% load test of the 450 tonne capacity powerhouse bridge crane.