Bridge conditions in Whitman County, Washington
349 inventoried bridges · 13 rated poor · 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
Whitman County tracks close to typical: 13 of its 349 inventoried bridges (3.7%) are rated poor, against a national rate of about 7%.
- 13 of the 349 bridges in Whitman County, Washington, are rated in poor condition (3.7%) in the 2025 National Bridge Inventory, as of .
- 182 bridges (52.1%) are rated good and 154 (44.1%) fair.
- The median Whitman County bridge was built in 1975.
- The busiest poor-rated bridge is US 195 over S Fk Palouse River (built 1923), carrying about 9,381 vehicles a day.
Good 52.1% · Fair 44.1% · Poor 3.7% of 349 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 195 over S Fk Palouse River | 1923 | 9,381 | Poor |
| US 195 over Spring Flat Creek | 1920 | 9,093 | Poor |
| US 195 over Bn Ry & Old SR 195 | 1975 | 4,838 | Poor |
| SR 26 Spur over Palouse River | 1938 | 3,246 | Poor |
| SR 26 over Palouse River | 1937 | 3,094 | Poor |
| SR 26 over Willow Creek | 1967 | 1,655 | Poor |
| SR 26 over Pcc RR | 1967 | 1,555 | Poor |
| SR 23 over Pleasant Valley CR | 1958 | 778 | Poor |
| SR 23 over Rock Creek | 1946 | 269 | Poor |
| SR 23 over Imbler Creek | 1946 | 269 | Poor |
| Almota Docks Rd over Almota Creek | 1970 | 266 | Poor |
| Cherry CREEK/4150 over Cottonwood Creek | 1964 | 80 | Poor |
| COUNTRYMAN/3185 over Cottonwood Creek | 1922 | 50 | Poor |
Busiest bridges in the county
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 27 over S Fk Palouse River | 1977 | 18,772 | Good |
| SR 27 over Missouri Flat CR | 1955 | 17,702 | Fair |
| Bishop Blvd over Paradise Creek | 1985 | 15,937 | Fair |
| Bishop Blvd over S Fork Palouse River | 1992 | 15,937 | Good |
| Stadium Way over Missouri Flat Creek | 1946 | 14,901 | Fair |
| SR 270 over S Fk Palouse | 1996 | 10,725 | Good |
| SR 270 over BN & UPRR SE Spring Str | 1996 | 10,725 | Good |
| US 195 over S Fk Palouse River | 1934 | 9,648 | Fair |
| US 195 over S Fk Palouse River | 1923 | 9,381 | Poor |
| US 195 over S Fk Palouse River | 1934 | 9,381 | 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.