Bridge conditions in Pacific County, Washington
120 inventoried bridges · 9 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
The federal inventory lists 120 bridges in Pacific County: 68 rated good, 43 fair, and 9 poor.
- 9 of the 120 bridges in Pacific County, Washington, are rated in poor condition (7.5%) in the 2025 National Bridge Inventory, as of .
- 68 bridges (56.7%) are rated good and 43 (35.8%) fair.
- The median Pacific County bridge was built in 1980.
- The busiest poor-rated bridge is US 101 over Columbia R (built 1966), carrying about 23,300 vehicles a day.
Good 56.7% · Fair 35.8% · Poor 7.5% of 120 bridges
Bridges rated poor
Every bridge in the county with a poor rating, busiest first. Poor means a major component is rated 4 or lower on FHWA's 0-9 scale; it is a repair flag, not a closure notice.
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 101 over Columbia R | 1966 | 23,300 | Poor |
| US 101 over S Fk Willapa River | 1966 | 10,253 | Poor |
| SR 6 over Creek | 1947 | 2,879 | Poor |
| SR 401 over Naselle River Overflow | 1964 | 2,839 | Poor |
| US 101 over Greenhead Slough | 1934 | 1,911 | Poor |
| US 101 over Teal Slough | 1934 | 1,911 | Poor |
| Community Drive over Surfside Est. Lagoon | 1967 | 87 | Poor |
| Knappton Road over Davis Creek | 1963 | 79 | Poor |
| So Bend-palix Road over Niawiakum River | 1965 | 39 | Poor |
Busiest bridges in the county
| 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 |
| US 101 over Wallicut River | 1979 | 7,256 | Good |
| US 101 over Half Bridge | 1963 | 6,961 | Fair |
| US 101 over Columbia R Megler | 1965 | 6,800 | Good |
| US 101 over Columbia R Megler | 1966 | 6,800 | Fair |
Source: FHWA National Bridge Inventory, 2025. Counts cover inventoried highway bridges over 20 feet; ratings are reported by the state DOT.
All of Washington: Washington bridge conditions by county · every download on the data page.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.