450th over Little Cedar River
FairMitchell County, Iowa · 099160803 · Structure no. 000000000248421
- Built
- 1992
- 33 years old
- Condition
- Fair
- inspected December 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 154 ft
- 3 main spans
- Daily traffic
- 78
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
450th over Little Cedar River is a prestressed concrete stringer/multi-beam or girder carrying 450th over Little Cedar River in Mitchell County, Iowa. It was built in 1992, so it is 33 years old, younger 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 6 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 78 vehicles a day, projected to reach 78 by 2043. The structure is 154 ft (46.9 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 6 Satisfactory | Structural elements show some minor deterioration. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 450th over Little Cedar River built?
It was built in 1992, making it 33 years old in 2025.
What condition is 450th over Little Cedar 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 December 2023.
How much traffic does 450th over Little Cedar River carry?
About 78 vehicles per day (2022 count).
How long is 450th over Little Cedar River?
The structure is 154 ft (46.9 m) long with a longest span of 56 ft (17.1 m) and a deck 33 ft wide.
Who owns 450th over Little Cedar River?
It is owned by the County Highway Agency.