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Project Title & Location
US 101/Purdy Creek Bridge -Replace Bridge (Mason County)
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Project Description
This project replaces the US 101 Purdy Creek Bridge in the Skokomish River Valley in Mason County. The Purdy Creek Bridge site is the lowest point of US 101. The hydraulics of the Lower Skokomish River frequently results in floods, closing US 101. This new bridge will accommodate the 100-year flood as well as possible changes to the course of the Skokomish River by constructing a raised roadway near Purdy Creek with a sufficient opening for flood water to pass through.
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Contractor/Consultant
Quigg Bros., Inc.
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Recent Progress
The project was awarded on 6/30/08 to Quigg Bros., Inc.. Construction began 7/21/08. Recent progress includes placement of temporary erosion control measures and wall construction for the detour alignment.
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Design Construction Impacts
To date the project has been constructed as designed with only minor changes. Additional utility relocates were required and have been completed. The detour temporary wall type has been changed from geosynthetic to soldier pile. Over-excavation at portions of the temporary wall locations was required.
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Environmental Impacts / Compliance
The project is being constructed in accordance with the project permits. The project Best Management Practices are being maintained and are in good working order.
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Impacts to Traffic
The new bridge will be adjacent to the existing. A detour roadway is being constructed that utilizes the existing bridge and a portion of the existing roadway to maintain two lanes of traffic during construction. Two short duration lane reductions to one-lane one-way traffic under temporary signal system will be required.
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