SR 173 over Columbia R
Fair Condition56 years old3,767 vehicles/day
Location
| State | Washington |
| County | Douglas |
| Location | 10.5 N Jct SR 17 |
| Carries | SR 173 |
| Crosses | Columbia R |
| Coordinates | 48.08481, -119.78083 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 1632.9 ft (497.7 m) |
| Max Span | 342.8 ft (104.5 m) |
| Deck Width | 37.7 ft (11.5 m) |
| Deck Area | 5723.6 sq m |
| Main Spans | 10 |
| Year Built | 1970 |
Traffic
| Avg Daily Traffic | 3,767 (2023) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is possibly eligible (requires evaluation) |
| Structure Number | 0008566A0000000 |