T60 100th ST over I-80
FairPoweshiek County, Iowa · 2.0 Mi. W of Jct. U.S. 63 · Structure no. 000000000046140
- Built
- 1963
- 62 years old
- Condition
- Fair
- inspected June 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 215 ft
- 4 main spans
- Daily traffic
- 30
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
T60 100th ST over I-80 is a prestressed concrete stringer/multi-beam or girder carrying T60 100th 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 fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 30 vehicles a day, roughly 30% of them trucks, projected to reach 30 by 2042. The structure is 215 ft (65.5 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T60 100th ST over I-80 built?
It was built in 1963, making it 62 years old in 2025.
What condition is T60 100th ST over I-80 in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2023.
How much traffic does T60 100th ST over I-80 carry?
About 30 vehicles per day (2022 count), of which roughly 30% are trucks.
How long is T60 100th ST over I-80?
The structure is 215 ft (65.5 m) long with a longest span of 65 ft (19.8 m) and a deck 29 ft wide.
Who owns T60 100th ST over I-80?
It is owned by the State Highway Agency.