229 ST over Rock Ck
Good Condition6 years old35 vehicles/day
Location
| State | South Dakota |
| County | Miner |
| Location | 7s & 2.6e Carthage |
| Carries | 229 ST |
| Crosses | Rock Ck |
| Coordinates | 44.06660, -97.65941 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Tee Beam |
| Total Length | 60.4 ft (18.4 m) |
| Max Span | 57.1 ft (17.4 m) |
| Deck Width | 33.1 ft (10.1 m) |
| Deck Area | 185.8 sq m |
| Main Spans | 1 |
| Year Built | 2020 |
Traffic
| Avg Daily Traffic | 35 (2022) |
| Truck Traffic | 3% |
| 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 | 000000049096090 |