Mullan Gulch RD over Twelvemile Creek 014
Fair Condition95 years old150 vehicles/day
Location
| State | Montana |
| County | Mineral |
| Location | Henderson |
| Carries | Mullan Gulch RD |
| Crosses | Twelvemile Creek 014 |
| Coordinates | 47.36701, -115.26472 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 35.1 ft (10.7 m) |
| Max Span | 34.1 ft (10.4 m) |
| Deck Width | 25.3 ft (7.7 m) |
| Deck Area | 82.4 sq m |
| Main Spans | 1 |
| Year Built | 1931 |
Traffic
| Avg Daily Traffic | 150 (2023) |
| 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 | L31179001+09001 |