US 12 over Warehouse Yard
Columbia County, Washington · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 12 over Warehouse Yard in Columbia County, Washington, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1933, making it 92 years old at the 2025 inventory.
- It carries about 2,442 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 9 of the 86 inventoried bridges in Columbia County rated poor (10.5%); 9 (10.5%) are rated poor.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (46.32525, -117.97267)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 263 ft |
| Location | 8.2 E Walla Wal Co |
| NBI structure number | 0001687B0000000 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Washington department of transportation.
Busiest bridges in Columbia County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 12 over Touchet River | 1966 | 5,627 | Good |
| US 12 over Touchet River | 1966 | 4,556 | Good |
| US 12 over UPRR | 1977 | 2,442 | Fair |
| US 12 over Patit Creek | 1933 | 2,218 | Fair |
| US 12 over Whetstone Creek | 2021 | 1,993 | Good |
| US 12 over Tucannon River | 1967 | 1,884 | Poor |
All bridges nearby: Columbia County, WA bridge conditions · every bridge in Columbia County · Washington bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.