310 Avenue over Keyapaha Rv
Good Condition9 years old50 vehicles/day
Location
| State | South Dakota |
| County | Tripp |
| Location | .1e & 1n Millboro |
| Carries | 310 Avenue |
| Crosses | Keyapaha Rv |
| Coordinates | 43.08688, -99.96798 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 82.0 ft (25 m) |
| Max Span | 78.1 ft (23.8 m) |
| Deck Width | 32.5 ft (9.9 m) |
| Deck Area | 247.5 sq m |
| Main Spans | 1 |
| Year Built | 2017 |
Traffic
| Avg Daily Traffic | 50 (2022) |
| Truck Traffic | 9% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 623 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000062141477 |