Ia 183 over Overflow Channel
GoodMonona County, Iowa · 4.8 Mi. S of SR E54 · Structure no. 000000000037121
- Built
- 2008
- 17 years old
- Condition
- Good
- inspected November 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 25 ft
- 2 main spans
- Daily traffic
- 580
- 2022 count
- Owner
- State
- State Highway Agency
About this bridge
Ia 183 over Overflow Channel is a concrete continuous culvert carrying Ia 183 over Overflow Channel in Monona County, Iowa. It was built in 2008, so it is 17 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 580 vehicles a day, roughly 17% of them trucks, projected to reach 580 by 2044. The structure is 25 ft (7.6 m) long. If it were closed, the detour would be 29.8 mi (48 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 |
|---|---|---|
| Channel and channel protection | 8 Very Good | No problems noted. |
| Culvert | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Ia 183 over Overflow Channel built?
It was built in 2008, making it 17 years old in 2025.
What condition is Ia 183 over Overflow Channel 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 November 2024.
How much traffic does Ia 183 over Overflow Channel carry?
About 580 vehicles per day (2022 count), of which roughly 17% are trucks.
How long is Ia 183 over Overflow Channel?
The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m).
Who owns Ia 183 over Overflow Channel?
It is owned by the State Highway Agency.