This project preserves the transfer span system by replacing it with a hydraulic transfer span (H-span) design. The H-span is a moveable bridge that connects the trestle to the vessel.
The new H-span system improves reliability and safety and reduces environmental impacts and operational costs.
The project will bring the span up to current seismic, mechanical and electical standards.
| Protects Environment
The project removed creosote-treated timbers at the transfer span. Creosote is made up of many chemicals. Removing this from the Puget Sound will help aquatic life.
| Economic Incentive
Because the H-Span system is simpler and requires fewer staff to operate, costs to maintain the system are expected to decrease.
Partnerships & Cooperation
Fabrication contract: $2.3 million
Installation contract: $3.3 million
Contracts total: $5.6 million
WSF Construction Project Engineer John Callahan
WSF Communications Manager Joy Goldenberg
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