FM over Mason Creek
FairGuthrie County, Iowa · 079322604 · Structure no. 000000000168251
- Built
- 1987
- 38 years old
- Condition
- Fair
- inspected November 2022
- Type
- Slab
- Concrete Continuous
- Length
- 103 ft
- 3 main spans
- Daily traffic
- 50
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Mason Creek is a concrete continuous slab carrying FM over Mason Creek in Guthrie County, Iowa. It was built in 1987, so it is 38 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 50 vehicles a day, roughly 26% of them trucks, projected to reach 50 by 2042. The structure is 103 ft (31.4 m) long and 33 ft wide. If it were closed, the detour would be 11.2 mi (18 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| 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 Mason Creek built?
It was built in 1987, making it 38 years old in 2025.
What condition is FM over Mason Creek 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 November 2022.
How much traffic does FM over Mason Creek carry?
About 50 vehicles per day (2022 count), of which roughly 26% are trucks.
How long is FM over Mason Creek?
The structure is 103 ft (31.4 m) long with a longest span of 39 ft (11.9 m) and a deck 33 ft wide.
Who owns FM over Mason Creek?
It is owned by the County Highway Agency.