Main Boulder RD over Boulder River 040
Fair Condition88 years old157 vehicles/day
Location
| State | Montana |
| County | Park |
| Location | 31m S Springdale |
| Carries | Main Boulder RD |
| Crosses | Boulder River 040 |
| Coordinates | 45.33569, -110.23121 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 86.0 ft (26.2 m) |
| Max Span | 58.1 ft (17.7 m) |
| Deck Width | 16.1 ft (4.9 m) |
| Deck Area | 128.4 sq m |
| Main Spans | 1 |
| Year Built | 1938 |
Traffic
| Avg Daily Traffic | 157 (2023) |
| Truck Traffic | 17% |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | L34210000+08001 |