Home › Washington › Pacific County › So Valley Road over So Fork Naselle Rive

So Valley Road over So Fork Naselle River

Pacific County, Washington · rated Fair in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

So Valley Road over So Fork Naselle River in Pacific County, Washington, is rated in fair condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
It was built in 1965, making it 60 years old at the 2025 inventory.
It carries about 506 vehicles a day (traffic count year 2023).
Its listed owner is the county highway agency.
It is one of 43 of the 120 inventoried bridges in Pacific County rated fair (35.8%); 9 (7.5%) are rated poor.
A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.

Component ratings

Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.

Bridge	Built	Vehicles/day	Condition
US 101 over Columbia R	1966	23,300	Poor
US 101 over Columbia R	1966	22,526	Fair
US 101 over S Fk Willapa River	1966	10,253	Poor
US 101 over N Fk Willapa	1992	8,151	Fair
US 101 over Skidmore Slough	1980	8,012	Good
US 101 over Chinook R	1927	7,256	Fair