Couch Road over Grindstone Ck
FairHaakon County, South Dakota · 7 N & 1.8 W Philip · Structure no. 000000028152420
- Built
- 1930
- 95 years old, rebuilt 1945
- Condition
- Fair
- inspected September 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 42 ft
- 1 main span
- Daily traffic
- 28
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Couch Road over Grindstone Ck is a prestressed concrete tee beam carrying Couch Road over Grindstone Ck in Haakon County, South Dakota. It was built in 1930 and reconstructed in 1945, so it is 95 years old, older 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 30 by 2032. The structure is 42 ft (12.8 m) long and 19 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Couch Road over Grindstone Ck built?
It was built in 1930, making it 95 years old in 2025. It was reconstructed in 1945.
What condition is Couch Road over Grindstone 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 Couch Road over Grindstone Ck carry?
About 28 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Couch Road over Grindstone Ck?
The structure is 42 ft (12.8 m) long with a longest span of 39 ft (11.9 m) and a deck 19 ft wide.
Who owns Couch Road over Grindstone Ck?
It is owned by the County Highway Agency.