US 191-1st AVE N over Big Spring Creek
Fair Condition66 years old5,189 vehicles/day
Location
| State | Montana |
| County | Fergus |
| Location | Lewistown-1st AVE N |
| Carries | US 191-1st AVE N |
| Crosses | Big Spring Creek |
| Coordinates | 47.06778, -109.42519 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Slab |
| Total Length | 34.1 ft (10.4 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 69.9 ft (21.3 m) |
| Deck Area | 221.5 sq m |
| Main Spans | 1 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 5,189 (2023) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00043000+00851 |