See the Report Card Data
More Information on bridge condition is available on the Sustainable Thurston Report Card.
Good, Fair, Poor Condition Rating
A range from no problems to some minor deterioration of structural elements.
All primary structural elements are sound but may have deficiencies such as minor section loss, deterioration, cracking, spalling, or scour.
Advanced deficiencies such as section loss, deterioration, cracking, spalling, scour, or seriously affected primary structural components. Bridges rated in poor condition may be posted with truck weight restrictions, but are still safe to travel.
A strong multimodal network relies on safe and functional bridges for all modes. The Federal Highway Administration requires all public bridge owners to inspect and report on bridge condition once every two years. 97% of Thurston County bridges are in fair or better condition.
45% of Thurston County’s locally-owned bridges that carry vehicles are in Fair Condition. The most cost-effective time to rehabilitate a bridge is before the underlying structure is damaged, so these “Fair” bridges are ripe for rehabilitation.
“Poor” condition vehicle bridges are considered structurally deficient. While still safe for general travel, weight restrictions may apply. These bridges are prioritized for replacement or rehabilitation. The state is currently meeting its statewide
performance goal: for 90% of bridges on the National Highway System (Interstate and major state highways) in Fair or Good condition.
Thurston County is home to 12 pedestrian/bicycle only bridges:
- Eight locally owned – mainly on the Chehalis Western or Yelm-Tenino trail systems
- Three state owned bridges (one connecting Capitol Campus over Capitol Way, and the other two over I-5)
- One owned by the Nisqually Tribe
Of the local bridges, four are in poor condition, including three on the Chehalis Western Trail (former railroad bridges) and one over Percival Creek.
Federal funding for bridge maintenance, preservation, and rehabilitation is distributed to both the State and local governments. The National Highway Performance Program (NHPP) supplies around $354 million annually to the State to support the condition and performance of the National Highway System. Washington State’s 2015 Connecting Washington transportation package includes $87.5 million a year (for the next 16 years) in funding for state highway maintenance, operations, and preservation, which can be used for state bridges. WSDOT has a local bridge program that is around $45 million a year – funded with $23 million in NHPP and $22 million from a Surface Transportation Program set-aside.