55th Ave over Br Middle River
GoodWarren County, Iowa · 076252306 · Structure no. 000000000334761
- Built
- 2018
- 7 years old
- Condition
- Good
- inspected October 2022
- Type
- Slab
- Concrete Continuous
- Length
- 81 ft
- 1 main span
- Daily traffic
- 62
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
55th Ave over Br Middle River is a concrete continuous slab carrying 55th Ave over Br Middle River in Warren County, Iowa. It was built in 2018, so it is 7 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 62 vehicles a day, roughly 21% of them trucks, projected to reach 62 by 2043. The structure is 81 ft (24.7 m) long and 27 ft wide. If it were closed, the detour would be 5 mi (8 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 55th Ave over Br Middle River built?
It was built in 2018, making it 7 years old in 2025.
What condition is 55th Ave over Br Middle River 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 October 2022.
How much traffic does 55th Ave over Br Middle River carry?
About 62 vehicles per day (2022 count), of which roughly 21% are trucks.
How long is 55th Ave over Br Middle River?
The structure is 81 ft (24.7 m) long with a longest span of 31 ft (9.4 m) and a deck 27 ft wide.
Who owns 55th Ave over Br Middle River?
It is owned by the County Highway Agency.