Structure 10936658 · Cass County, ND
Carries US Highway 10 over Legal Drain 40, 45th St. & Main Ave..
A culvert 21 ft across with 2 openings. 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 | North Dakota |
| County | Cass |
| Location | 45th St. & Main Ave. |
| Carries | US Highway 10 |
| Crosses | Legal Drain 40 |
| Coordinates | 46.87626, -96.86129 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.0 ft (6.4 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 117.1 sq m |
| Main Spans | 2 |
| Year Built | 1931 (reconstructed 1956) |
| Avg Daily Traffic | 21,900 (2019) |
| Truck Traffic | 8% |
| Lanes On Bridge | 5 |
| Last Inspection | June 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 | 0010936658 |
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.