Structure I00015152+09001 · Jefferson County, MT
Carries I 15 over Red Rock Creek, 1m N Bernice.
A culvert 22 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 | Jefferson |
| Location | 1m N Bernice |
| Carries | I 15 |
| Crosses | Red Rock Creek |
| Coordinates | 46.26581, -112.31907 |
| Material | Steel |
| Design | Culvert |
| Total Length | 21.7 ft (6.6 m) |
| Max Span | 21.7 ft (6.6 m) |
| Deck Area | 159.7 sq m |
| Main Spans | 1 |
| Year Built | 1984 |
| Avg Daily Traffic | 3,182 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 4 |
| Last Inspection | November 2024 |
| 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 | I00015152+09001 |
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.