Nd Highway 21 over Branch Cannonball River
Fair Condition75 years old510 vehicles/day
Location
| State | North Dakota |
| County | Hettinger |
| Location | 2 West Of Burt |
| Carries | Nd Highway 21 |
| Crosses | Branch Cannonball River |
| Coordinates | 46.37043, -102.19326 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 5 (Fair) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 27.9 ft (8.5 m) |
| Max Span | 8.9 ft (2.7 m) |
| Deck Area | 64.6 sq m |
| Main Spans | 3 |
| Year Built | 1951 |
Traffic
| Avg Daily Traffic | 510 (2019) |
| Truck Traffic | 10% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 0021058657 |