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Project Title & Location
I-5/Second Street Bridge - Replace Bridge - Mount Vernon
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Project Description
This project replaces a low-clearance bridge over I-5, eliminating a through-city detour now required for over-height trucks. The new bridge eliminates the risk of over-height trucks hitting the bridge over busy I-5 and will meet seismic standards.
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Environmental Impacts / Compliance
The Contractor discovered contaminated soils while installing a manhole. Test showed the soil was contaminated but not hazardous. The drainage structure has been installed and the costs associated with addressing the contaminated soils are being determined.
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Impacts to Traffic
Traffic will be detoured through Mount Vernon at night when full directional closure of I-5 is required (Contractor has used 7 of the 23, I-5 closures allowed in the contract). Mitigation efforts include a comprehensive public awareness campaign. The next I-5 closures will occur this fall to remove the forms over I-5. The forms are being used to build the new bridge.
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