The King County Road Services Division will host a drop-in community meeting on Thursday, Dec. 2 to solicit public feedback on the conceptual design for a new Mt. Si Bridge across the Middle Fork of the Snoqualmie River.

The 100-year-old bridge was originally built to span a river in another part of the county, and was moved to its present site in 1955. It is at the end of its useful life as a vehicular bridge. The county is replacing the bridge to eliminate deficiencies, improve safety, and reduce high maintenance costs.

The bridge has other limitations, including: narrow travel lanes with no shoulders; no area for pedestrians and bicyclists; low overhead clearance; and load restrictions. Plus, it does not meet current earthquake standards.

After asking for public feedback on three types of truss bridge designs, the Roads Division has selected a Pratt truss structure for the new replacement bridge. It was picked for a combination of factors – cost, ease of construction, maintenance requirements, and aesthetics.

County engineers began the initial design work last month. Now, members of the community are invited to view conceptual bridge design plans and share feedback. The open house will be held:

Thursday, Dec. 2
from 7-9 p.m.
Mt. Si High School commons
8651 Meadowbrook Way SE, Snoqualmie

For more information about the meeting, contact: Marnie McGrath, community relations planner, at (206) 684-1154; or, email her: marnie.mcgrath@metrokc.gov. Project information is available on the King County Roads Division’s Capital Improvement Program website.
 

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