Steel column jackets were installed on the SR 410 Scatter Creek bridge piers to reduce the risk of earthquake damage. In additional rocks and other materials were added to the base of one pier to increase its protection from erosion.
Adding the steel column jackets around the bridge's two piers will help stabilize them during an earthquake, reducing the possibility the piers cracking or even collapsing.
Travelers who use the SR 410 Scatter Creek Bridge are safer on the span in the event of an earthquake, because the bridge is less likely to collapse.
Material around one of the two bridge piers was eroding. Reducing the erosion by adding rocks and other material at the base of the pier protects it from rushing water and reduces its vulnerability.
| Protects Environment
The project improved fish habitat by removing concrete and rebar debris from the creek. These materials were left by an old bridge at this location.
Crews rebuilt the stream bed and placed logs and wood debris for fish.
| Economic Incentive
Seismically retrofitting the SR 410 Scatter Creek Bridge helps ensure the highway will remain open. This is vitally important because there are no local roads to use as a detour if earthquake damage closed the bridge. During the winter, a closure would totally cut off people between the span and Crystal Mountain. That's because SR 410 closes for each winter at Crystal Mountain Boulevard and remains closed until spring.
Partnerships & Cooperation
WSDOT coordinated closely with local agencies, the cities of Enumclaw, Black Diamond, Mount Rainier National Park and the Muckleshoot Indian Tribe.
|Financial Data for PIN 141015A
||Amount ($ in thousands)
|2003 Gas Tax (Nickel Funding)
|2005 Gas Tax (TPA)
|Pre-Existing Funds (PEF)
15700 Dayton Avenue North
Seattle, WA 98133
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