I 15 over Dry Fork Marias River
Good Condition54 years old1,727 vehicles/day
Location
| State | Montana |
| County | Pondera |
| Location | 2m N Conrad |
| Carries | I 15 |
| Crosses | Dry Fork Marias River |
| Coordinates | 48.21732, -111.93308 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Stringer/Multi-beam |
| Total Length | 247.0 ft (75.3 m) |
| Max Span | 71.5 ft (21.8 m) |
| Deck Width | 44.3 ft (13.5 m) |
| Deck Area | 1016.5 sq m |
| Main Spans | 4 |
| Year Built | 1972 |
Traffic
| Avg Daily Traffic | 1,727 (2023) |
| Truck Traffic | 24% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | December 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00015342+00251 |