171st ST over Unnamed CR
GoodCass County, Missouri · S 7 T 46 N R 29 W · Structure no. 34972
- Built
- 2014
- 11 years old
- Condition
- Good
- inspected April 2023
- Type
- Culvert
- Aluminum, Wrought Iron, or Cast Iron
- Length
- 23 ft
- 1 main span
- Daily traffic
- 100
- 2024 count
- Owner
- County
- County Highway Agency
About this bridge
171st ST over Unnamed CR is a aluminum, wrought iron, or cast iron culvert carrying 171st ST over Unnamed CR in Cass County, Missouri. It was built in 2014, so it is 11 years old, younger than the Missouri average of 45.1 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 100 vehicles a day, roughly 10% of them trucks, projected to reach 160 by 2044. The structure is 23 ft (7.1 m) long. 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was 171st ST over Unnamed CR built?
It was built in 2014, making it 11 years old in 2025.
What condition is 171st ST over Unnamed CR 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 April 2023.
How much traffic does 171st ST over Unnamed CR carry?
About 100 vehicles per day (2024 count), of which roughly 10% are trucks.
How long is 171st ST over Unnamed CR?
The structure is 23 ft (7.1 m) long with a longest span of 23 ft (7.1 m).
Who owns 171st ST over Unnamed CR?
It is owned by the County Highway Agency.