S 117 over Milk River
Fair Condition69 years old479 vehicles/day
Location
| State | Montana |
| County | Valley |
| Location | 1m S Nashua |
| Carries | S 117 |
| Crosses | Milk River |
| Coordinates | 48.12014, -106.37967 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel Continuous |
| Design | Girder and Floorbeam |
| Total Length | 369.8 ft (112.7 m) |
| Max Span | 125.0 ft (38.1 m) |
| Deck Width | 26.6 ft (8.1 m) |
| Deck Area | 912.9 sq m |
| Main Spans | 3 |
| Year Built | 1957 |
Traffic
| Avg Daily Traffic | 479 (2023) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 523 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00017011+00781 |