FM over Drainage
PoorPottawattamie County, Iowa · 075380404 · Structure no. 000000000285030
- Built
- 1964
- 61 years old
- Condition
- Poor
- inspected April 2024
- Type
- Slab
- Concrete Continuous
- Length
- 100 ft
- 3 main spans
- Daily traffic
- 270
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Drainage is a concrete continuous slab carrying FM over Drainage in Pottawattamie County, Iowa. It was built in 1964, so it is 61 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 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 270 vehicles a day, roughly 22% of them trucks, projected to reach 270 by 2043. The structure is 100 ft (30.5 m) long and 30 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 | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Superstructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Substructure | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
| Channel and channel protection | 4 Poor | Advanced section loss, deterioration, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Drainage built?
It was built in 1964, making it 61 years old in 2025.
What condition is FM over Drainage 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 April 2024.
How much traffic does FM over Drainage carry?
About 270 vehicles per day (2022 count), of which roughly 22% are trucks.
How long is FM over Drainage?
The structure is 100 ft (30.5 m) long with a longest span of 39 ft (11.9 m) and a deck 30 ft wide.
Who owns FM over Drainage?
It is owned by the County Highway Agency.