Harding Grove Road over West Plum Ck
FairHaakon County, South Dakota · 7.7E&3.5N Milesville · Structure no. 000000028237165
- Built
- 1988
- 37 years old
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 65 ft
- 1 main span
- Daily traffic
- 28
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Harding Grove Road over West Plum Ck is a prestressed concrete tee beam carrying Harding Grove Road over West Plum Ck in Haakon County, South Dakota. It was built in 1988, so it is 37 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 28 vehicles a day, roughly 2% of them trucks, projected to reach 28 by 2032. The structure is 65 ft (19.8 m) long and 23 ft wide. If it were closed, the detour would be 32.9 mi (53 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Harding Grove Road over West Plum Ck built?
It was built in 1988, making it 37 years old in 2025.
What condition is Harding Grove Road over West Plum Ck in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2024.
How much traffic does Harding Grove Road over West Plum Ck carry?
About 28 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Harding Grove Road over West Plum Ck?
The structure is 65 ft (19.8 m) long with a longest span of 64 ft (19.5 m) and a deck 23 ft wide.
Who owns Harding Grove Road over West Plum Ck?
It is owned by the County Highway Agency.