M56 370th ST over Miller Creek
GoodCrawford County, Iowa · 0.02 S NW Cor Sec 3 Haye · Structure no. 000000000127211
- Built
- 2017
- 8 years old
- Condition
- Good
- inspected May 2023
- Type
- Stringer/Multi-beam or Girder
- Steel
- Length
- 43 ft
- 1 main span
- Daily traffic
- 15
- 2022 count
- Owner
- County
- County Highway Agency
About this bridge
M56 370th ST over Miller Creek is a steel stringer/multi-beam or girder carrying M56 370th ST over Miller Creek in Crawford County, Iowa. It was built in 2017, so it is 8 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 15 vehicles a day, roughly 13% of them trucks, projected to reach 15 by 2043. The structure is 43 ft (13.1 m) long and 25 ft wide. If it were closed, the detour would be 6.2 mi (10 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 | 8 Very Good | No problems noted. |
| 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 M56 370th ST over Miller Creek built?
It was built in 2017, making it 8 years old in 2025.
What condition is M56 370th ST over Miller Creek 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 May 2023.
How much traffic does M56 370th ST over Miller Creek carry?
About 15 vehicles per day (2022 count), of which roughly 13% are trucks.
How long is M56 370th ST over Miller Creek?
The structure is 43 ft (13.1 m) long with a longest span of 41 ft (12.5 m) and a deck 25 ft wide.
Who owns M56 370th ST over Miller Creek?
It is owned by the County Highway Agency.