29210 421st Avenue over Dawson Creek
Poor Condition101 years old56 vehicles/day
Location
| State | South Dakota |
| County | Bon Homme |
| Location | 3w & 0.1s Of Scotland |
| Carries | 29210 421st Avenue |
| Crosses | Dawson Creek |
| Coordinates | 43.15287, -97.77517 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 3 (Serious) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 32.2 ft (9.8 m) |
| Max Span | 24.3 ft (7.4 m) |
| Deck Width | 27.9 ft (8.5 m) |
| Deck Area | 83.3 sq m |
| Main Spans | 1 |
| Year Built | 1925 (reconstructed 1972) |
Traffic
| Avg Daily Traffic | 56 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000005200011 |