234 ST over Rock Ck
PoorPosted for loadMiner County, South Dakota · 1S & 6.1W Howard · Structure no. 000000049099140
- Built
- 1926
- 99 years old
- Condition
- Poor
- inspected August 2024
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 33 ft
- 1 main span
- Daily traffic
- 25
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
234 ST over Rock Ck is a steel stringer/multi-beam or girder carrying 234 ST over Rock Ck in Miner County, South Dakota. It was built in 1926, so it is 99 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 25 vehicles a day, roughly 2% of them trucks, projected to reach 25 by 2032. The structure is 33 ft (10.1 m) long and 21 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 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 234 ST over Rock Ck built?
It was built in 1926, making it 99 years old in 2025.
What condition is 234 ST over Rock Ck in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.
How much traffic does 234 ST over Rock Ck carry?
About 25 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is 234 ST over Rock Ck?
The structure is 33 ft (10.1 m) long with a longest span of 31 ft (9.3 m) and a deck 21 ft wide.
Who owns 234 ST over Rock Ck?
It is owned by the County Highway Agency.