SR T-58 over I-80
GoodPoweshiek County, Iowa · 4.0 Mi. W of Jct. US 63 · Structure no. 000000000046130
- Built
- 1963
- 62 years old
- Condition
- Good
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 217 ft
- 4 main spans
- Daily traffic
- 170
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
SR T-58 over I-80 is a prestressed concrete stringer/multi-beam or girder carrying SR T-58 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 170 vehicles a day, projected to reach 170 by 2042. The structure is 217 ft (66.1 m) long and 29 ft wide. If it were closed, the detour would be 8.1 mi (13 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 SR T-58 over I-80 built?
It was built in 1963, making it 62 years old in 2025.
What condition is SR T-58 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 SR T-58 over I-80 carry?
About 170 vehicles per day (2022 count).
How long is SR T-58 over I-80?
The structure is 217 ft (66.1 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.
Who owns SR T-58 over I-80?
It is owned by the State Highway Agency.