Sd028 over Trib Dolph Ck
Good Condition5 years old1,240 vehicles/day
Location
| State | South Dakota |
| County | Hamlin |
| Location | 5.8 W Jct Sd 21 N |
| Carries | Sd028 |
| Crosses | Trib Dolph Ck |
| Coordinates | 44.58709, -97.33748 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 8 (Very Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 24.6 ft (7.5 m) |
| Max Span | 12.1 ft (3.7 m) |
| Deck Area | 91.5 sq m |
| Main Spans | 2 |
| Year Built | 2021 |
Traffic
| Avg Daily Traffic | 1,240 (2023) |
| Truck Traffic | 16% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 923 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000029077150 |