E 18th ST over I229
FairPosted for loadMinnehaha County, South Dakota · 18th ST Overhead · Structure no. 000000050219215
- Built
- 1959
- 66 years old
- Condition
- Fair
- inspected July 2024
- Type
- Slab
- Concrete Continuous
- Length
- 166 ft
- 4 main spans
- Daily traffic
- 6,500
- 2023 count
- Owner
- State
- State Highway Agency
About this bridge
E 18th ST over I229 is a concrete continuous slab carrying E 18th ST over I229 in Minnehaha County, South Dakota. It was built in 1959, 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 5 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 6,500 vehicles a day, roughly 5% of them trucks, projected to reach 6,500 by 2043. The structure is 166 ft (50.6 m) long and 52 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was E 18th ST over I229 built?
It was built in 1959, making it 66 years old in 2025.
What condition is E 18th ST over I229 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 July 2024.
How much traffic does E 18th ST over I229 carry?
About 6,500 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is E 18th ST over I229?
The structure is 166 ft (50.6 m) long with a longest span of 48 ft (14.5 m) and a deck 52 ft wide.
Who owns E 18th ST over I229?
It is owned by the State Highway Agency.