I229 N over S Cliff Ave
FairMinnehaha County, South Dakota · Cliff Ave Interchange · Structure no. 000000050211230
- Built
- 1959
- 66 years old, rebuilt 1985
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 183 ft
- 3 main spans
- Daily traffic
- 22,452
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I229 N over S Cliff Ave is a prestressed concrete stringer/multi-beam or girder carrying I229 N over S Cliff Ave in Minnehaha County, South Dakota. It was built in 1959 and reconstructed in 1985, so it is 66 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 22,452 vehicles a day, roughly 7% of them trucks, projected to reach 35,384 by 2044. The structure is 183 ft (55.8 m) long and 35 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was I229 N over S Cliff Ave built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1985.
What condition is I229 N over S Cliff Ave 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 May 2023.
How much traffic does I229 N over S Cliff Ave carry?
About 22,452 vehicles per day (2024 count), of which roughly 7% are trucks.
How long is I229 N over S Cliff Ave?
The structure is 183 ft (55.8 m) long with a longest span of 75 ft (22.9 m) and a deck 35 ft wide.
Who owns I229 N over S Cliff Ave?
It is owned by the State Highway Agency.