FM over North River
FairAdair County, Iowa · 077302802 · Structure no. 000000000057620
- Built
- 1965
- 60 years old
- Condition
- Fair
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 69 ft
- 1 main span
- Daily traffic
- 1,047
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
FM over North River is a prestressed concrete stringer/multi-beam or girder carrying FM over North River in Adair County, Iowa. It was built in 1965, so it is 60 years old, older than the Iowa average of 45.5 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
It carries about 1,047 vehicles a day, roughly 13% of them trucks, projected to reach 1,047 by 2043. The structure is 69 ft (21 m) long and 30 ft wide. If it were closed, the detour would be 1.9 mi (3 km).
Location
Open in Google MapsCondition and inspection
The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was FM over North River built?
It was built in 1965, making it 60 years old in 2025.
What condition is FM over North River in?
The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.
How much traffic does FM over North River carry?
About 1,047 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is FM over North River?
The structure is 69 ft (21 m) long with a longest span of 66 ft (20.1 m) and a deck 30 ft wide.
Who owns FM over North River?
It is owned by the County Highway Agency.