EB I-235 over E 21st Street
GoodPolk County, Iowa · 0.3 Mi. E of Jct. Ia #163 · Structure no. 000000000042971
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 94 ft
- 1 main span
- Daily traffic
- 35,150
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
EB I-235 over E 21st Street is a prestressed concrete stringer/multi-beam or girder carrying EB I-235 over E 21st Street in Polk County, Iowa. It was built in 2005, so it is 20 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 35,150 vehicles a day, roughly 8% of them trucks, projected to reach 35,150 by 2043. The structure is 94 ft (28.5 m) long and 63 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 EB I-235 over E 21st Street built?
It was built in 2005, making it 20 years old in 2025.
What condition is EB I-235 over E 21st Street 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 2023.
How much traffic does EB I-235 over E 21st Street carry?
About 35,150 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is EB I-235 over E 21st Street?
The structure is 94 ft (28.5 m) long with a longest span of 90 ft (27.4 m) and a deck 63 ft wide.
Who owns EB I-235 over E 21st Street?
It is owned by the State Highway Agency.