F Bridge RD over Marias River
Fair Condition73 years old55 vehicles/day
Location
| State | Montana |
| County | Toole |
| Location | 12m SE Shelby |
| Carries | F Bridge RD |
| Crosses | Marias River |
| Coordinates | 48.38357, -111.71827 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 455.1 ft (138.7 m) |
| Max Span | 125.0 ft (38.1 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 1123.5 sq m |
| Main Spans | 4 |
| Year Built | 1953 (reconstructed 2024) |
Traffic
| Avg Daily Traffic | 55 (2023) |
| Truck Traffic | 18% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | S00417007+01001 |