T 91 over Big Cottonwood River
GoodBrown County, Minnesota · 1.9 MI N of JCT Csah 24 · Structure no. 08532
- Built
- 1991
- 34 years old
- Condition
- Good
- inspected November 2023
- Type
- Stringer/Multi-beam or Girder
- Prestressed Concrete
- Length
- 282 ft
- 4 main spans
- Daily traffic
- 90
- 1988 count
- Owner
- County
- County Highway Agency
About this bridge
T 91 over Big Cottonwood River is a prestressed concrete stringer/multi-beam or girder carrying T 91 over Big Cottonwood River in Brown County, Minnesota. It was built in 1991, so it is 34 years old, younger than the Minnesota average of 38.5 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 90 vehicles a day, projected to reach 90 by 2029. The structure is 282 ft (85.9 m) long and 31 ft wide. 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 |
|---|---|---|
| Deck | 7 Good | Some minor problems. |
| 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 91 over Big Cottonwood River built?
It was built in 1991, making it 34 years old in 2025.
What condition is T 91 over Big Cottonwood River 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 November 2023.
How much traffic does T 91 over Big Cottonwood River carry?
About 90 vehicles per day (1988 count).
How long is T 91 over Big Cottonwood River?
The structure is 282 ft (85.9 m) long with a longest span of 77 ft (23.5 m) and a deck 31 ft wide.
Who owns T 91 over Big Cottonwood River?
It is owned by the County Highway Agency.