Bridge conditions in Skamania County, Washington
120 inventoried bridges · 11 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
11 of the 120 bridges the federal inventory lists in Skamania County are rated poor; the rest split 55 good and 54 fair.
- 11 of the 120 bridges in Skamania County, Washington, are rated in poor condition (9.2%) in the 2025 National Bridge Inventory, as of .
- 55 bridges (45.8%) are rated good and 54 (45.0%) fair.
- The median Skamania County bridge was built in 1973.
- The busiest poor-rated bridge is SR 14 over Half Bridge (built 1930), carrying about 4,879 vehicles a day.
Good 45.8% · Fair 45.0% · Poor 9.2% 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 |
|---|---|---|---|
| SR 14 over Half Bridge | 1930 | 4,879 | Poor |
| SR 14 over Hamilton Creek | 1978 | 4,524 | Poor |
| No Data Entered over Swift Creek | 1957 | 650 | Poor |
| Skamania Landing R over Butler Slough | 1948 | 209 | Poor |
| No Data Entered over Dry Creek | 1962 | 118 | Poor |
| No Data Entered over Lost Creek | 1962 | 118 | Poor |
| No Data Entered over Lost Creek Ditch | 1983 | 50 | Poor |
| No Data Entered over Lost Creek Ditch | 1986 | 50 | Poor |
| No Data Entered over Lost Creek | 1955 | 30 | Poor |
| No Data Entered over Trout Creek 2 | 1985 | 20 | Poor |
| No Data Entered over Trapper Creek | 1954 | 10 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 14 over Rock CR | 1938 | 6,440 | Fair |
| SR 14 over Bn RR | 1978 | 5,217 | Fair |
| SR 14 over Cascade Drive | 1978 | 5,217 | Fair |
| SR 14 over Cape Horn Slide | 1930 | 4,879 | Fair |
| SR 14 over Half Bridge | 1930 | 4,879 | Poor |
| SR 14 over Duncan CR | 1926 | 4,755 | Fair |
| SR 14 over Woodard Creek | 1928 | 4,630 | Fair |
| SR 14 over Hamilton Creek | 1978 | 4,524 | Poor |
| SR 14 over Wind River | 1985 | 4,346 | Good |
| SR 14 over Sp S Ry | 1934 | 3,783 | Good |
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.