T 13 over Big Cobb River
GoodBlue Earth County, Minnesota · 0.2 MI E of JCT Csah 14 · Structure no. 07563
- Built
- 1983
- 42 years old
- Condition
- Good
- inspected November 2024
- Type
- Culvert
- Concrete
- Length
- 53 ft
- 4 main spans
- Daily traffic
- 65
- 1982 count
- Owner
- Town / Township
- Town or Township Highway Agency
About this bridge
T 13 over Big Cobb River is a concrete culvert carrying T 13 over Big Cobb River in Blue Earth County, Minnesota. It was built in 1983, so it is 42 years old, older 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 65 vehicles a day, projected to reach 65 by 2029. The structure is 53 ft (16.2 m) long. If it were closed, the detour would be 6.2 mi (10 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 T 13 over Big Cobb River built?
It was built in 1983, making it 42 years old in 2025.
What condition is T 13 over Big Cobb 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 2024.
How much traffic does T 13 over Big Cobb River carry?
About 65 vehicles per day (1982 count).
How long is T 13 over Big Cobb River?
The structure is 53 ft (16.2 m) long with a longest span of 12 ft (3.7 m).
Who owns T 13 over Big Cobb River?
It is owned by the Town or Township Highway Agency.