Trenton Ave over I-80
GoodAdair County, Iowa · 1.0 Mi. W of Jct. SR P28 · Structure no. 000000000013260
- Built
- 1958
- 67 years old
- Condition
- Good
- inspected February 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 214 ft
- 4 main spans
- Daily traffic
- 113
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Trenton Ave over I-80 is a prestressed concrete stringer/multi-beam or girder carrying Trenton Ave over I-80 in Adair County, Iowa. It was built in 1958, so it is 67 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 113 vehicles a day, projected to reach 113 by 2043. The structure is 214 ft (65.2 m) long and 29 ft wide. If it were closed, the detour would be 1.9 mi (3 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 Trenton Ave over I-80 built?
It was built in 1958, making it 67 years old in 2025.
What condition is Trenton Ave 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 February 2023.
How much traffic does Trenton Ave over I-80 carry?
About 113 vehicles per day (2022 count).
How long is Trenton Ave over I-80?
The structure is 214 ft (65.2 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.
Who owns Trenton Ave over I-80?
It is owned by the State Highway Agency.