340th over Little Cedar River
GoodMitchell County, Iowa · 097150501 · Structure no. 000000000247321
- Built
- 1981
- 44 years old
- Condition
- Good
- inspected January 2024
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 249 ft
- 3 main spans
- Daily traffic
- 70
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
340th over Little Cedar River is a prestressed concrete stringer/multi-beam or girder carrying 340th over Little Cedar River in Mitchell County, Iowa. It was built in 1981, so it is 44 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 70 vehicles a day, projected to reach 70 by 2044. The structure is 249 ft (75.9 m) long and 33 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 | 7 Good | Some minor problems. |
| Superstructure | 7 Good | Some minor problems. |
| 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 340th over Little Cedar River built?
It was built in 1981, making it 44 years old in 2025.
What condition is 340th 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 January 2024.
How much traffic does 340th over Little Cedar River carry?
About 70 vehicles per day (2022 count).
How long is 340th over Little Cedar River?
The structure is 249 ft (75.9 m) long with a longest span of 81 ft (24.7 m) and a deck 33 ft wide.
Who owns 340th over Little Cedar River?
It is owned by the County Highway Agency.