Shilshole Bay Marina redevelopment

Image by Mithun
Plans for Shilshole Bay Marina include replacing more than 1,000 creosote-treated wood piles and upgrading the docks, buildings and infrastructure.

Project description:

Shilshole Bay Marina provides monthly moorage for 1,500 sailboats and powerboats, guest moorage for more than 100 boats and dry moorage for 80 vessels. It is also home to a large commercial charter/tour and fishing fleet.

The Port of Seattle is replacing 22 docks and piers at the marina, along with replacing and expanding the sailing center at the north end, expanding its dry boat moorage on land, and replacing six service buildings for restrooms, showers, laundry and storage. The port is also replacing the administration building with marina-related office space and providing an area for private development of a restaurant. New public areas, landscaping and enhanced parking are included.

A key challenge of the work is removing more than 1,000 creosote-treated wood piles from the marine environment, replacing them with steel piles, and extending floating docks farther west within the main marina.

Address: 7001 Seaview Ave. N.W., Seattle

Cost: $50.02 million (construction)
$80.00 million (total)

Type of contract: General contractor/construction
manager (guaranteed maximum price)

Start of construction: January 2005

Expected completion date: March 2008

Contractor: Hoffman Construction,
1505 Westlake Ave. N., Suite 500,
Seattle, WA 98109,
(206) 286-6697

Dock designer: Reid Middleton,
728 134th St. S.W., Suite 200,
Everett, WA 98204,
(425) 741-3800

Building and site improvements designer: Mithun, Pier 56,
1201 Alaskan Way, Suite 200,
Seattle, WA 98101,
(206) 623-3344

Owner: Port of Seattle

Project participants:

GeoEngineers (geotech) Heffron (traffic engineer) Hultz/BHU/Cross (landside electrical engineer) KPFF (landside structural and civil engineer) NBBJ (environmental graphics) Path Engineers (waterside electrical) Pressler Engineering (waterside mechanical) Roen (cost estimating) Stantec Consulting, formerly Keen Engineering (landside mechanical)

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