The two Tidal Slough Bridges on U.S. 101 are critical components of Oregon's coastal transportation network. Both structures have aging timber substructures that require periodic maintenance and repair to remain in service.
Despite these investments, the bridges have remained on the cusp of poor condition for years, indicating ongoing maintenance is becoming less effective at addressing the underlying deterioration.
As these timber components continue to age, the risk of structural deficiencies, load restrictions, and escalating maintenance needs will continue to grow.
Replacing these bridges represents a proactive investment in the long-term reliability of the U.S. 101 corridor.
While local roads may provide a detour option for passenger vehicles, they are not a practical alternative for freight traffic. Weight restrictions or bridge closures would significantly impact the movement of goods. Restrictions and closures would increase transportation costs and reduce the resiliency of a corridor that serves coastal communities, businesses, and emergency services.
Replacement will eliminate a recurring maintenance burden, preserve unrestricted freight mobility, and provide a durable, long-term solution that improves safety and reliability for all users of this important route.