370th over Drainage Ditch
GoodMitchell County, Iowa · 098161901 · Structure no. 000000000247940
- Built
- 1969
- 56 years old, rebuilt 2015
- Condition
- Good
- inspected December 2023
- Type
- Channel Beam
- Concrete
- Length
- 31 ft
- 1 main span
- Daily traffic
- 108
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
370th over Drainage Ditch is a concrete channel beam carrying 370th over Drainage Ditch in Mitchell County, Iowa. It was built in 1969 and reconstructed in 2015, so it is 56 years old, older 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 108 vehicles a day, projected to reach 108 by 2043. The structure is 31 ft (9.4 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 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 | 8 Very Good | No problems noted. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 370th over Drainage Ditch built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2015.
What condition is 370th over Drainage Ditch 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 370th over Drainage Ditch carry?
About 108 vehicles per day (2022 count).
How long is 370th over Drainage Ditch?
The structure is 31 ft (9.4 m) long with a longest span of 30 ft (9.1 m) and a deck 32 ft wide.
Who owns 370th over Drainage Ditch?
It is owned by the County Highway Agency.