Tetra Tech INCA provided a detailed survey and condition assessment of the 430-ton bridge crane; evaluation of various alternatives for refurbishment, life extension, and upgrade of the two crane trolleys, each with one main and one auxiliary hoist, bridge drive and crane rails; and preparation of plans, specifications, and cost estimates to implement the recommended work.

INCA studied and provided recommendations to rectify crane structural, travel, and rail problems that had existed since its commissioning in the late 1970s.

 Bonneville Second Powerhouse Bridge Crane Refurbishments (128.79 kB)

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