Slab RD over Big Muddy Creek 038
Fair Condition76 years old100 vehicles/day
Location
| State | Montana |
| County | Roosevelt |
| Location | 10m NW Culbertson |
| Carries | Slab RD |
| Crosses | Big Muddy Creek 038 |
| Coordinates | 48.21584, -104.68963 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 51.5 ft (15.7 m) |
| Max Span | 46.6 ft (14.2 m) |
| Deck Width | 24.0 ft (7.3 m) |
| Deck Area | 114.6 sq m |
| Main Spans | 1 |
| Year Built | 1950 (reconstructed 1997) |
Traffic
| Avg Daily Traffic | 100 (2025) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L43429001+00001 |