42nd ST SW over I-235
GoodPolk County, Iowa · 1.5 MI East of JCT Ia 28 · Structure no. 000000000042361
- Built
- 2003
- 22 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 219 ft
- 2 main spans
- Daily traffic
- 11,600
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
42nd ST SW over I-235 is a prestressed concrete stringer/multi-beam or girder carrying 42nd ST SW over I-235 in Polk County, Iowa. It was built in 2003, so it is 22 years old, younger than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 11,600 vehicles a day, roughly 3% of them trucks, projected to reach 11,600 by 2044. The structure is 219 ft (66.8 m) long and 74 ft wide. If it were closed, the detour would be 1.2 mi (2 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 42nd ST SW over I-235 built?
It was built in 2003, making it 22 years old in 2025.
What condition is 42nd ST SW over I-235 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in December 2024.
How much traffic does 42nd ST SW over I-235 carry?
About 11,600 vehicles per day (2022 count), of which roughly 3% are trucks.
How long is 42nd ST SW over I-235?
The structure is 219 ft (66.8 m) long with a longest span of 115 ft (35.1 m) and a deck 74 ft wide.
Who owns 42nd ST SW over I-235?
It is owned by the State Highway Agency.