490th over Little Cedar River
GoodMitchell County, Iowa · 100161903 · Structure no. 000000000248911
- Built
- 1989
- 36 years old
- Condition
- Good
- inspected December 2023
- Type
- Slab
- Concrete Continuous
- Length
- 128 ft
- 3 main spans
- Daily traffic
- 49
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
490th over Little Cedar River is a concrete continuous slab carrying 490th over Little Cedar River in Mitchell County, Iowa. It was built in 1989, so it is 36 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 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 49 vehicles a day, projected to reach 49 by 2043. The structure is 128 ft (39 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 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 | 8 Very Good | No problems noted. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 490th over Little Cedar River built?
It was built in 1989, making it 36 years old in 2025.
What condition is 490th over Little Cedar 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 December 2023.
How much traffic does 490th over Little Cedar River carry?
About 49 vehicles per day (2022 count).
How long is 490th over Little Cedar River?
The structure is 128 ft (39 m) long with a longest span of 49 ft (14.9 m) and a deck 33 ft wide.
Who owns 490th over Little Cedar River?
It is owned by the County Highway Agency.