FM S-27 over I-80
FairPolk County, Iowa · At Jct. Polk Co. S27 · Structure no. 000000000042100
- Built
- 1959
- 66 years old, rebuilt 1993
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 226 ft
- 4 main spans
- Daily traffic
- 2,978
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
FM S-27 over I-80 is a prestressed concrete stringer/multi-beam or girder carrying FM S-27 over I-80 in Polk County, Iowa. It was built in 1959 and reconstructed in 1993, so it is 66 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 2,978 vehicles a day, roughly 6% of them trucks, projected to reach 2,978 by 2042. The structure is 226 ft (68.9 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 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 FM S-27 over I-80 built?
It was built in 1959, making it 66 years old in 2025. It was reconstructed in 1993.
What condition is FM S-27 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 May 2023.
How much traffic does FM S-27 over I-80 carry?
About 2,978 vehicles per day (2022 count), of which roughly 6% are trucks.
How long is FM S-27 over I-80?
The structure is 226 ft (68.9 m) long with a longest span of 69 ft (21 m) and a deck 34 ft wide.
Who owns FM S-27 over I-80?
It is owned by the State Highway Agency.