Structure 23046203 · McKenzie County, ND
Carries Irrfb Nd Hiway 23 over Missouri River, 3 West Of Nd 1804.
Set by its lowest-rated component: Superstructure and Substructure at 7 of 9.
How ratings work4,517 ft end to end, longest span 310 ft: about 13 football fields. 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 or the layout of the shorter spans, so those are drawn as typical for a segmental box-girder bridge.
| State | North Dakota |
| County | McKenzie |
| Location | 3 West Of Nd 1804 |
| Carries | Irrfb Nd Hiway 23 |
| Crosses | Missouri River |
| Coordinates | 47.97979, -102.56160 |
| Material | Prestressed Concrete Continuous |
| Design | Segmental Box Girder |
| Total Length | 4517.1 ft (1376.8 m) |
| Max Span | 310.0 ft (94.5 m) |
| Deck Width | 52.8 ft (16.1 m) |
| Deck Area | 22166.5 sq m |
| Main Spans | 15 |
| Year Built | 2005 |
| Avg Daily Traffic | 5,070 (2019) |
| Truck Traffic | 6% |
| Lanes On Bridge | 2 |
| Last Inspection | July 2023 |
| 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 | 0023046203 |
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.