F 62 (520th St) over Big Slough CR
GoodJohnson County, Iowa · F62 7.5 Mi. East of Hills · Structure no. 000000000202991
- Built
- 2012
- 13 years old
- Condition
- Good
- inspected April 2021
- Type
- Slab
- Concrete Continuous
- Length
- 110 ft
- 3 main spans
- Daily traffic
- 760
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
F 62 (520th St) over Big Slough CR is a concrete continuous slab carrying F 62 (520th St) over Big Slough CR in Johnson County, Iowa. It was built in 2012, so it is 13 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 760 vehicles a day, roughly 11% of them trucks, projected to reach 760 by 2043. The structure is 110 ft (33.5 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was F 62 (520th St) over Big Slough CR built?
It was built in 2012, making it 13 years old in 2025.
What condition is F 62 (520th St) over Big Slough CR 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 April 2021.
How much traffic does F 62 (520th St) over Big Slough CR carry?
About 760 vehicles per day (2022 count), of which roughly 11% are trucks.
How long is F 62 (520th St) over Big Slough CR?
The structure is 110 ft (33.5 m) long with a longest span of 43 ft (13.1 m) and a deck 33 ft wide.
Who owns F 62 (520th St) over Big Slough CR?
It is owned by the County Highway Agency.