FM over So Skunk River
PoorPosted for loadMahaska County, Iowa · 075151108 · Structure no. 000000000236310
- Built
- 1956
- 69 years old
- Condition
- Poor
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Steel Continuous
- Length
- 343 ft
- 3 main spans
- Daily traffic
- 290
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over So Skunk River is a steel continuous stringer/multi-beam or girder carrying FM over So Skunk River in Mahaska County, Iowa. It was built in 1956, so it is 69 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.
It carries about 290 vehicles a day, projected to reach 290 by 2044. The structure is 343 ft (104.5 m) long and 22 ft wide. If it were closed, the detour would be 8.1 mi (13 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over So Skunk River built?
It was built in 1956, making it 69 years old in 2025.
What condition is FM over So Skunk River in?
The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2024.
How much traffic does FM over So Skunk River carry?
About 290 vehicles per day (2022 count).
How long is FM over So Skunk River?
The structure is 343 ft (104.5 m) long with a longest span of 133 ft (40.5 m) and a deck 22 ft wide.
Who owns FM over So Skunk River?
It is owned by the County Highway Agency.