FM over Thunder Creek
GoodMarion County, Iowa · 077182606 · Structure no. 000000000240991
- Built
- 2005
- 20 years old
- Condition
- Good
- inspected December 2022
- Type
- Slab
- Concrete Continuous
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 410
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Thunder Creek is a concrete continuous slab carrying FM over Thunder Creek in Marion County, Iowa. It was built in 2005, so it is 20 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 410 vehicles a day, roughly 15% of them trucks, projected to reach 410 by 2043. The structure is 100 ft (30.5 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Thunder Creek built?
It was built in 2005, making it 20 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 2022.
How much traffic does FM over Thunder Creek carry?
About 410 vehicles per day (2022 count), of which roughly 15% are trucks.
How long is FM over Thunder Creek?
The structure is 100 ft (30.5 m) long with a longest span of 38 ft (11.6 m) and a deck 32 ft wide.
Who owns FM over Thunder Creek?
It is owned by the County Highway Agency.