US 87 over Gravel Coulee
Fair Condition72 years old1,881 vehicles/day
Location
| State | Montana |
| County | Hill |
| Location | 9m NE Box Elder |
| Carries | US 87 |
| Crosses | Gravel Coulee |
| Coordinates | 48.42429, -109.89071 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 5 (Fair) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 95.1 ft (29 m) |
| Max Span | 19.0 ft (5.8 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 301.6 sq m |
| Main Spans | 5 |
| Year Built | 1954 (reconstructed 1985) |
Traffic
| Avg Daily Traffic | 1,881 (2023) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | P00010099+06491 |