31390 481st AVE over Drainage Ditch
Fair Condition50 years old140 vehicles/day
Location
| State | South Dakota |
| County | Union |
| Location | 10.1n & 5e Elk Point |
| Carries | 31390 481st AVE |
| Crosses | Drainage Ditch |
| Coordinates | 42.83720, -96.58659 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 100.7 ft (30.7 m) |
| Max Span | 40.0 ft (12.2 m) |
| Deck Width | 30.8 ft (9.4 m) |
| Deck Area | 288.6 sq m |
| Main Spans | 3 |
| Year Built | 1976 |
Traffic
| Avg Daily Traffic | 140 (2022) |
| Truck Traffic | 2% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000064110169 |