Dunn Rd. over South Canal
PoorMeade County, South Dakota · 6E & 12.5N Sturgis · Structure no. 000000047090305
- Built
- 1968
- 57 years old
- Condition
- Poor
- inspected July 2024
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 40 ft
- 1 main span
- Daily traffic
- 75
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
Dunn Rd. over South Canal is a prestressed concrete tee beam carrying Dunn Rd. over South Canal in Meade County, South Dakota. It was built in 1968, so it is 57 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.
It carries about 75 vehicles a day, roughly 2% of them trucks, projected to reach 75 by 2032. The structure is 40 ft (12.2 m) long and 23 ft wide. If it were closed, the detour would be 5 mi (8 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Dunn Rd. over South Canal built?
It was built in 1968, making it 57 years old in 2025.
What condition is Dunn Rd. over South Canal 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 July 2024.
How much traffic does Dunn Rd. over South Canal carry?
About 75 vehicles per day (2022 count), of which roughly 2% are trucks.
How long is Dunn Rd. over South Canal?
The structure is 40 ft (12.2 m) long with a longest span of 37 ft (11.3 m) and a deck 23 ft wide.
Who owns Dunn Rd. over South Canal?
It is owned by the County Highway Agency.