Construction will take place at the Orcas Island ferry terminal in fall 2013. This project will replace a timber pile dolphin with a new steel pipe pile dolphin.
A dolphin is a structure located in the water used as a landing aid for the ferries as they approach the terminal.
Why is WSDOT
replacing this timber dolphin?
The dolphin being replaced at the Orcas ferry terminal is comprised of creosote-treated timber piles that were installed in 1987. The project will remove the treated piles from Puget Sound and replace them with a steel pile structure that is designed for the current vessels serving the terminal.
WSF has been replacing these old timber dolphins throughout the system based on their condition, the required use by vessels for landing or staying in the slip, the vulnerability of adjacent structures and environmental stewardship.
The End Result
The new steel pipe pile dolphin will be the final component in the replacement of the landing aids at the Orcas ferry terminal. Two old concrete dolphins were previously replaced at Orcas in fall 2008. This project will bring 16 of WSF's 28 ferry terminal operating slips up to current standards.
Safety: The replacement of this dolphin will protect the adjacent marina and prevent the ferries from grounding in shallow water. It will also protect the ferry dock structure from damage in the event that a vessel were to lose power, lose control of the steering system or be caught in weather that would cause the vessel to come off line during a landing.
Environmental: WSF has been removing creosote-treated wood from Puget Sound for years based on regulatory permit requirements. This wood is then properly disposed of rather than being reused.
What is the project timeline?
- October 2011: Design began
- April 2013: Project advertised
- September 2013: Construction
Project signage will reflect the cost of construction engineering, project bid award and sales tax.
- Budget: $1,351,000
- Funding: State
How can I get more information?
WSF Marine Project Engineer
WSF Communications Manager
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