145th ST over I-80
GoodPoweshiek County, Iowa · 2.5 MI East of JCT US 63 · Structure no. 000000000046170
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 221 ft
- 4 main spans
- Daily traffic
- 20
- 2021 count
- Owner
- State
- State Highway Agency
About this bridge
145th ST over I-80 is a prestressed concrete stringer/multi-beam or girder carrying 145th ST over I-80 in Poweshiek County, Iowa. It was built in 1963, so it is 62 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 221 ft (67.4 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 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 145th ST over I-80 built?
It was built in 1963, making it 62 years old in 2025.
What condition is 145th ST over I-80 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 June 2023.
How much traffic does 145th ST over I-80 carry?
About 20 vehicles per day (2021 count).
How long is 145th ST over I-80?
The structure is 221 ft (67.4 m) long with a longest span of 65 ft (19.8 m) and a deck 28 ft wide.
Who owns 145th ST over I-80?
It is owned by the State Highway Agency.