FM over Linn Creek
PoorMarshall County, Iowa · 083200304 · Structure no. 000000000242911
- Built
- 1988
- 37 years old
- Condition
- Poor
- inspected November 2024
- Type
- Slab
- Concrete Continuous
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 737
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Linn Creek is a concrete continuous slab carrying FM over Linn Creek in Marshall County, Iowa. It was built in 1988, so it is 37 years old, younger 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.
It carries about 737 vehicles a day, roughly 10% of them trucks, projected to reach 737 by 2044. The structure is 100 ft (30.5 m) long and 32 ft wide. If it were closed, the detour would be 6.8 mi (11 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| 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 Linn Creek built?
It was built in 1988, making it 37 years old in 2025.
What condition is FM over Linn Creek 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 November 2024.
How much traffic does FM over Linn Creek carry?
About 737 vehicles per day (2022 count), of which roughly 10% are trucks.
How long is FM over Linn Creek?
The structure is 100 ft (30.5 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.
Who owns FM over Linn Creek?
It is owned by the County Highway Agency.