SH 3 over Thorn Creek
Fair Condition87 years old2,300 vehicles/day
Location
| State | Idaho |
| County | Benewah |
| Location | 4.5 S. ST Maries |
| Carries | SH 3 |
| Crosses | Thorn Creek |
| Coordinates | 47.26856, -116.50139 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 23.0 ft (7 m) |
| Deck Width | 56.4 ft (17.2 m) |
| Deck Area | 120.4 sq m |
| Main Spans | 1 |
| Year Built | 1939 |
Traffic
| Avg Daily Traffic | 2,300 (2023) |
| Truck Traffic | 20% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Historical significance is not determined |
| Structure Number | 000000000018875 |