New Underwood Rd. over Belle Fourche Rv
Fair Condition51 years old280 vehicles/day
Location
| State | South Dakota |
| County | Meade |
| Location | 17 N New Underwood |
| Carries | New Underwood Rd. |
| Crosses | Belle Fourche Rv |
| Coordinates | 44.35045, -102.83772 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 350.1 ft (106.7 m) |
| Max Span | 86.9 ft (26.5 m) |
| Deck Width | 34.8 ft (10.6 m) |
| Deck Area | 1131.0 sq m |
| Main Spans | 4 |
| Year Built | 1975 |
Traffic
| Avg Daily Traffic | 280 (2022) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000047363476 |