WB I-235 over 73rd St& Ia Interstate R
GoodPolk County, Iowa · 3.2 MI E of W JCT I 80/35 · Structure no. 000000000042260
- Built
- 1968
- 57 years old, rebuilt 1986
- Condition
- Good
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 337 ft
- 4 main spans
- Daily traffic
- 54,350
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
WB I-235 over 73rd St& Ia Interstate R is a steel continuous stringer/multi-beam or girder carrying WB I-235 over 73rd St& Ia Interstate R in Polk County, Iowa. It was built in 1968 and reconstructed in 1986, so it is 57 years old, older 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 54,350 vehicles a day, roughly 6% of them trucks, projected to reach 54,350 by 2044. The structure is 337 ft (102.7 m) long and 55 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 | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was WB I-235 over 73rd St& Ia Interstate R built?
It was built in 1968, making it 57 years old in 2025. It was reconstructed in 1986.
What condition is WB I-235 over 73rd St& Ia Interstate R 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 May 2024.
How much traffic does WB I-235 over 73rd St& Ia Interstate R carry?
About 54,350 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is WB I-235 over 73rd St& Ia Interstate R?
The structure is 337 ft (102.7 m) long with a longest span of 98 ft (29.9 m) and a deck 55 ft wide.
Who owns WB I-235 over 73rd St& Ia Interstate R?
It is owned by the State Highway Agency.