FM over Big Creek
PoorHenry County, Iowa · 072062804 · Structure no. 000000000028640
- Built
- 1959
- 66 years old
- Condition
- Poor
- inspected February 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 159 ft
- 3 main spans
- Daily traffic
- 1,151
- 2023 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Big Creek is a prestressed concrete stringer/multi-beam or girder carrying FM over Big Creek in Henry County, Iowa. It was built in 1959, so it is 66 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 3 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 1,151 vehicles a day, roughly 5% of them trucks, projected to reach 1,151 by 2043. The structure is 159 ft (48.5 m) long and 36 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, 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 Big Creek built?
It was built in 1959, making it 66 years old in 2025.
What condition is FM over Big 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 February 2024.
How much traffic does FM over Big Creek carry?
About 1,151 vehicles per day (2023 count), of which roughly 5% are trucks.
How long is FM over Big Creek?
The structure is 159 ft (48.5 m) long with a longest span of 52 ft (15.9 m) and a deck 36 ft wide.
Who owns FM over Big Creek?
It is owned by the County Highway Agency.