Mortimore/3620 over Thorn Creek
Good Condition49 years old16 vehicles/day
Location
| State | Washington |
| County | Whitman |
| Location | 1.44 Mi SW Stoneham |
| Carries | Mortimore/3620 |
| Crosses | Thorn Creek |
| Coordinates | 47.15100, -117.46113 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 40.0 ft (12.2 m) |
| Max Span | 38.4 ft (11.7 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 89.1 sq m |
| Main Spans | 1 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 16 (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 | 081508000000000 |