US-31 NB over Kibby Creek
FairMason County, Michigan · 2.3 MI N of County Line · Structure no. 000000000013230
- Built
- 1986
- 39 years old
- Condition
- Fair
- inspected March 2024
- Type
- Culvert
- Concrete
- Length
- 26 ft
- 2 main spans
- Daily traffic
- 4,256
- 2007 count
- Owner
- State
- State Highway Agency
About this bridge
US-31 NB over Kibby Creek is a concrete culvert carrying US-31 NB over Kibby Creek in Mason County, Michigan. It was built in 1986, so it is 39 years old, younger than the Michigan average of 48.3 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 4,256 vehicles a day, roughly 10% of them trucks, projected to reach 7,900 by 2015. The structure is 26 ft (7.9 m) long. If it were closed, the detour would be 0.6 mi (1 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 |
|---|---|---|
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
| Culvert | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was US-31 NB over Kibby Creek built?
It was built in 1986, making it 39 years old in 2025.
What condition is US-31 NB over Kibby Creek 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 March 2024.
How much traffic does US-31 NB over Kibby Creek carry?
About 4,256 vehicles per day (2007 count), of which roughly 10% are trucks.
How long is US-31 NB over Kibby Creek?
The structure is 26 ft (7.9 m) long with a longest span of 12 ft (3.7 m).
Who owns US-31 NB over Kibby Creek?
It is owned by the State Highway Agency.