S 59 over Mill Creek-stockpass
Fair Condition40 years old942 vehicles/day
Location
| State | Montana |
| County | Custer |
| Location | 7m SE Miles City |
| Carries | S 59 |
| Crosses | Mill Creek-stockpass |
| Coordinates | 46.30361, -105.75717 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 14.4 ft (4.4 m) |
| Deck Area | 89.2 sq m |
| Main Spans | 2 |
| Year Built | 1986 |
Traffic
| Avg Daily Traffic | 942 (2023) |
| Truck Traffic | 12% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00023009+05021 |