FM over Thunder Creek
GoodMarion County, Iowa · 077182706 · Structure no. 000000000241011
- Built
- 1999
- 26 years old
- Condition
- Good
- inspected December 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 112 ft
- 1 main span
- Daily traffic
- 1,770
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Thunder Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over Thunder Creek in Marion County, Iowa. It was built in 1999, so it is 26 years old, younger 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 1,770 vehicles a day, roughly 8% of them trucks, projected to reach 1,770 by 2044. The structure is 112 ft (34.1 m) long and 32 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| 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 Thunder Creek built?
It was built in 1999, making it 26 years old in 2025.
What condition is FM over Thunder Creek 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 December 2024.
How much traffic does FM over Thunder Creek carry?
About 1,770 vehicles per day (2022 count), of which roughly 8% are trucks.
How long is FM over Thunder Creek?
The structure is 112 ft (34.1 m) long with a longest span of 110 ft (33.5 m) and a deck 32 ft wide.
Who owns FM over Thunder Creek?
It is owned by the County Highway Agency.