I 90 over City County Drain Ditch
Fair Condition60 years old27,985 vehicles/day
Location
| State | Montana |
| County | Yellowstone |
| Location | Billings |
| Carries | I 90 |
| Crosses | City County Drain Ditch |
| Coordinates | 45.75220, -108.50988 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 7 (Good) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 23.0 ft (7 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 224 sq m |
| Main Spans | 2 |
| Year Built | 1966 |
Traffic
| Avg Daily Traffic | 27,985 (2023) |
| Truck Traffic | 14% |
| Lanes On Bridge | 6 |
Inspection & Ownership
| Last Inspection | 125 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | I00090448+04001 |