Structure I00094015+04531 · Yellowstone County, MT
Carries I 94 over Drainage, 1.2m E Ballentine.
A culvert 20 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Montana |
| County | Yellowstone |
| Location | 1.2m E Ballentine |
| Carries | I 94 |
| Crosses | Drainage |
| Coordinates | 45.94392, -108.13839 |
| Material | Steel |
| Design | Culvert |
| Total Length | 20.3 ft (6.2 m) |
| Max Span | 20.3 ft (6.2 m) |
| Deck Area | 143.8 sq m |
| Main Spans | 1 |
| Year Built | 1968 |
| Avg Daily Traffic | 5,221 (2023) |
| Truck Traffic | 26% |
| Lanes On Bridge | 4 |
| Last Inspection | January 2025 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 8 — Stable, low risk |
| Structure Number | I00094015+04531 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.