I090 E over I029 Drainage Ditch
FairMinnehaha County, South Dakota · I 90 & I 29 Interchange · Structure no. 000000050180163
- Built
- 1961
- 64 years old, rebuilt 1981
- Condition
- Fair
- inspected April 2023
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 318 ft
- 5 main spans
- Daily traffic
- 13,820
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
I090 E over I029 Drainage Ditch is a steel continuous stringer/multi-beam or girder carrying I090 E over I029 Drainage Ditch in Minnehaha County, South Dakota. It was built in 1961 and reconstructed in 1981, so it is 64 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 13,820 vehicles a day, roughly 13% of them trucks, projected to reach 21,780 by 2044. The structure is 318 ft (96.9 m) long and 47 ft wide.
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 I090 E over I029 Drainage Ditch built?
It was built in 1961, making it 64 years old in 2025. It was reconstructed in 1981.
What condition is I090 E over I029 Drainage Ditch 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 April 2023.
How much traffic does I090 E over I029 Drainage Ditch carry?
About 13,820 vehicles per day (2024 count), of which roughly 13% are trucks.
How long is I090 E over I029 Drainage Ditch?
The structure is 318 ft (96.9 m) long with a longest span of 90 ft (27.4 m) and a deck 47 ft wide.
Who owns I090 E over I029 Drainage Ditch?
It is owned by the State Highway Agency.