I029 over Br Six Mile Ck
FairPosted for loadBrookings County, South Dakota · 1.8 N US14 By-Pass · Structure no. 000000006185132
- Built
- 1970
- 55 years old, rebuilt 1991
- Condition
- Fair
- inspected September 2023
- Type
- Culvert
- Concrete Continuous
- Length
- 24 ft
- 2 main spans
- Daily traffic
- 9,960
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
I029 over Br Six Mile Ck is a concrete continuous culvert carrying I029 over Br Six Mile Ck in Brookings County, South Dakota. It was built in 1970 and reconstructed in 1991, so it is 55 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. Its operating status is: posted for load restriction.
It carries about 9,960 vehicles a day, roughly 16% of them trucks, projected to reach 12,182 by 2043. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Channel and channel protection | 9 Excellent | No problems noted. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I029 over Br Six Mile Ck built?
It was built in 1970, making it 55 years old in 2025. It was reconstructed in 1991.
What condition is I029 over Br Six Mile 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 2023.
How much traffic does I029 over Br Six Mile Ck carry?
About 9,960 vehicles per day (2023 count), of which roughly 16% are trucks.
How long is I029 over Br Six Mile Ck?
The structure is 24 ft (7.2 m) long with a longest span of 11 ft (3.5 m).
Who owns I029 over Br Six Mile Ck?
It is owned by the State Highway Agency.