Sylvester Bridge Replacement Contract Awarded; Should Start By ‘End Of June’


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As we’re previously reported, replacement work on the aging Sylvester Road Bridge is scheduled to begin as soon as “the end of June,” according to King County, and last through December (a complete Detour Plan can be downloaded here (PDF file).

The contract was recently awarded to SB Structures, located in Kent, which came in with the low bid.

“They have scheduled a pre-construction meeting for June 23rd,” said Normandy Park City Manager Doug Schulze via email. “At that time, they anticipate providing the contractor (SB Structures) with the notice to proceed. The contractor will most likely provide a start date at the June 23rd meeting.”

“The project is in the construction phase,” reads the King County Department of Transportation website. “The bridge will be closed starting at the end of June for six months.”

The county also adds:

The Sylvester Road Bridge is nearly 80 years old, and in poor condition. It has cracked columns and girders, worn rails and deck, and an antiquated design that will not withstand earthquake forces. After reviewing many options, engineers at the city, county, and state concluded that replacement is the most cost-effective solution for maintaining this corridor.

The new 220-foot long, single-span bridge will be slightly wider than the existing bridge, with two traffic lanes and a five-foot wide sidewalk. It will look somewhat similar to the existing bridge.

As news develops on this project, we’ll update the blog, so stay tuned.

If you have questions or comments about the project, or would like to receive e-mail updates about it, contact DeAnna Martin, Communications Planner at 206-684-1142.

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