FM over I-29
GoodMonona County, Iowa · 3.5 Mi. S of Ia 175 · Structure no. 000000000037290
- Built
- 1967
- 58 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 227 ft
- 4 main spans
- Daily traffic
- 89
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
FM over I-29 is a prestressed concrete stringer/multi-beam or girder carrying FM over I-29 in Monona County, Iowa. It was built in 1967, so it is 58 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 89 vehicles a day, roughly 22% of them trucks, projected to reach 89 by 2042. The structure is 227 ft (69.2 m) long and 32 ft wide. If it were closed, the detour would be 18 mi (29 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over I-29 built?
It was built in 1967, making it 58 years old in 2025.
What condition is FM over I-29 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.
How much traffic does FM over I-29 carry?
About 89 vehicles per day (2022 count), of which roughly 22% are trucks.
How long is FM over I-29?
The structure is 227 ft (69.2 m) long with a longest span of 69 ft (21 m) and a deck 32 ft wide.
Who owns FM over I-29?
It is owned by the State Highway Agency.