FM over Diversion Ditch
PoorPosted for loadMonona County, Iowa · 084441808 · Structure no. 000000000250760
- Built
- 1962
- 63 years old
- Condition
- Poor
- inspected May 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 271 ft
- 5 main spans
- Daily traffic
- 597
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
FM over Diversion Ditch is a prestressed concrete stringer/multi-beam or girder carrying FM over Diversion Ditch in Monona County, Iowa. It was built in 1962, so it is 63 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. Its operating status is: posted for load restriction.
It carries about 597 vehicles a day, roughly 17% of them trucks, projected to reach 597 by 2044. The structure is 271 ft (82.6 m) long and 26 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 | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Substructure | 3 Serious | Loss of section, deterioration, spalling or scour have seriously affected primary structural components. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over Diversion Ditch built?
It was built in 1962, making it 63 years old in 2025.
What condition is FM over Diversion Ditch 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 May 2024.
How much traffic does FM over Diversion Ditch carry?
About 597 vehicles per day (2021 count), of which roughly 17% are trucks.
How long is FM over Diversion Ditch?
The structure is 271 ft (82.6 m) long with a longest span of 69 ft (21 m) and a deck 26 ft wide.
Who owns FM over Diversion Ditch?
It is owned by the County Highway Agency.