FM over South Skunk River
FairMahaska County, Iowa · 075141504 · Structure no. 000000000236221
- Built
- 1982
- 43 years old
- Condition
- Fair
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 453 ft
- 5 main spans
- Daily traffic
- 330
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over South Skunk River is a prestressed concrete stringer/multi-beam or girder carrying FM over South Skunk River in Mahaska County, Iowa. It was built in 1982, so it is 43 years old, younger 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 330 vehicles a day, roughly 17% of them trucks, projected to reach 330 by 2044. The structure is 453 ft (138.1 m) long and 33 ft wide. If it were closed, the detour would be 8.7 mi (14 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over South Skunk River built?
It was built in 1982, making it 43 years old in 2025.
What condition is FM over South Skunk River 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 December 2024.
How much traffic does FM over South Skunk River carry?
About 330 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is FM over South Skunk River?
The structure is 453 ft (138.1 m) long with a longest span of 97 ft (29.6 m) and a deck 33 ft wide.
Who owns FM over South Skunk River?
It is owned by the County Highway Agency.