Mo 139 S over Smokey Br
FairLinn County, Missouri · S 25 T 60 N R 22 W · Structure no. 9256
- Built
- 1936
- 89 years old
- Condition
- Fair
- inspected December 2024
- Type
- Culvert
- Concrete Continuous
- Length
- 21 ft
- 2 main spans
- Daily traffic
- 264
- 2024 count
- Owner
- State
- State Highway Agency
About this bridge
Mo 139 S over Smokey Br is a concrete continuous culvert carrying Mo 139 S over Smokey Br in Linn County, Missouri. It was built in 1936, so it is 89 years old, older than the Missouri average of 45.1 years.
The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 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 264 vehicles a day, roughly 12% of them trucks, projected to reach 330 by 2044. The structure is 21 ft (6.4 m) long and 32 ft wide. If it were closed, the detour would be 31.7 mi (51 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Mo 139 S over Smokey Br built?
It was built in 1936, making it 89 years old in 2025.
What condition is Mo 139 S over Smokey Br 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 December 2024.
How much traffic does Mo 139 S over Smokey Br carry?
About 264 vehicles per day (2024 count), of which roughly 12% are trucks.
How long is Mo 139 S over Smokey Br?
The structure is 21 ft (6.4 m) long with a longest span of 10 ft (3 m) and a deck 32 ft wide.
Who owns Mo 139 S over Smokey Br?
It is owned by the State Highway Agency.