209th Street over Six Mile Ck
PoorPosted for loadBrookings County, South Dakota · 3N & 2.3E Brookings · Structure no. 000000006193130
- Built
- 1967
- 58 years old
- Condition
- Poor
- inspected September 2023
- Type
- Channel Beam
- Concrete
- Length
- 72 ft
- 2 main spans
- Daily traffic
- 99
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
209th Street over Six Mile Ck is a concrete channel beam carrying 209th Street over Six Mile Ck in Brookings County, South Dakota. It was built in 1967, so it is 58 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 99 vehicles a day, roughly 8% of them trucks, projected to reach 124 by 2036. The structure is 72 ft (22 m) long and 30 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, 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 209th Street over Six Mile Ck built?
It was built in 1967, making it 58 years old in 2025.
What condition is 209th Street over Six Mile 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 September 2023.
How much traffic does 209th Street over Six Mile Ck carry?
About 99 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is 209th Street over Six Mile Ck?
The structure is 72 ft (22 m) long with a longest span of 35 ft (10.8 m) and a deck 30 ft wide.
Who owns 209th Street over Six Mile Ck?
It is owned by the County Highway Agency.