SD028 over Trib Dolph Ck
GoodHamlin County, South Dakota · 4.3 W JCT Sd 21 N · Structure no. 000000029092150
- Built
- 2021
- 4 years old
- Condition
- Good
- inspected September 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 35 ft
- 2 main spans
- Daily traffic
- 1,240
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
SD028 over Trib Dolph Ck is a concrete continuous culvert carrying SD028 over Trib Dolph Ck in Hamlin County, South Dakota. It was built in 2021, so it is 4 years old, younger than the South Dakota average of 48.9 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 1,240 vehicles a day, roughly 16% of them trucks, projected to reach 1,494 by 2043. The structure is 35 ft (10.6 m) long. If it were closed, the detour would be 24.2 mi (39 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was SD028 over Trib Dolph Ck built?
It was built in 2021, making it 4 years old in 2025.
What condition is SD028 over Trib Dolph Ck in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.
How much traffic does SD028 over Trib Dolph Ck carry?
About 1,240 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is SD028 over Trib Dolph Ck?
The structure is 35 ft (10.6 m) long with a longest span of 17 ft (5.2 m).
Who owns SD028 over Trib Dolph Ck?
It is owned by the State Highway Agency.