Lancaster/4100 over Downing Creek
Fair Condition60 years old171 vehicles/day
Location
| State | Washington |
| County | Whitman |
| Location | 6.47 Mi SW SR 23 |
| Carries | Lancaster/4100 |
| Crosses | Downing Creek |
| Coordinates | 47.03108, -117.66392 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 33.1 ft (10.1 m) |
| Max Span | 31.5 ft (9.6 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 73.7 sq m |
| Main Spans | 1 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 171 (2021) |
| Truck Traffic | 25% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 083998000000000 |