IRR - S 480 over Long Grass Creek
Good Condition42 years old22 vehicles/day
Location
| State | Montana |
| County | Richland |
| Location | 20m N Richey |
| Carries | IRR - S 480 |
| Crosses | Long Grass Creek |
| Coordinates | 47.92411, -105.06525 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Channel Beam |
| Total Length | 29.9 ft (9.1 m) |
| Max Span | 28.9 ft (8.8 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 77.3 sq m |
| Main Spans | 1 |
| Year Built | 1984 |
Traffic
| Avg Daily Traffic | 22 (2023) |
| Truck Traffic | 14% |
| 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 | S00480018+00001 |