T 40 over Little Cottonwood River
FairBrown County, Minnesota · 0.5 MI N of JCT Csah 20 · Structure no. 08523
- Built
- 1979
- 46 years old
- Condition
- Fair
- inspected November 2023
- Type
- Tee Beam
- Prestressed Concrete
- Length
- 125 ft
- 3 main spans
- Daily traffic
- 41
- 1973 count
- Owner
- County
- County Highway Agency
About this bridge
T 40 over Little Cottonwood River is a prestressed concrete tee beam carrying T 40 over Little Cottonwood River in Brown County, Minnesota. It was built in 1979, so it is 46 years old, older than the Minnesota average of 38.5 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 41 vehicles a day, projected to reach 41 by 2029. The structure is 125 ft (38.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 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 |
|---|---|---|
| Deck | 6 Satisfactory | Structural elements show some minor deterioration. |
| Superstructure | 7 Good | Some minor problems. |
| Substructure | 7 Good | Some minor problems. |
| Channel and channel protection | 7 Good | Some minor problems. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was T 40 over Little Cottonwood River built?
It was built in 1979, making it 46 years old in 2025.
What condition is T 40 over Little Cottonwood River 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 November 2023.
How much traffic does T 40 over Little Cottonwood River carry?
About 41 vehicles per day (1973 count).
How long is T 40 over Little Cottonwood River?
The structure is 125 ft (38.2 m) long with a longest span of 41 ft (12.6 m) and a deck 32 ft wide.
Who owns T 40 over Little Cottonwood River?
It is owned by the County Highway Agency.