Csah 53 over Little Cobb River
FairBlue Earth County, Minnesota · 0.2 MI N of JCT Csah 21 · Structure no. 07520
- Built
- 1968
- 57 years old
- Condition
- Fair
- inspected November 2024
- Type
- Channel Beam
- Prestressed Concrete
- Length
- 93 ft
- 3 main spans
- Daily traffic
- 338
- 2021 count
- Owner
- County
- County Highway Agency
About this bridge
Csah 53 over Little Cobb River is a prestressed concrete channel beam carrying Csah 53 over Little Cobb River in Blue Earth County, Minnesota. It was built in 1968, so it is 57 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 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 338 vehicles a day, projected to reach 380 by 2041. The structure is 93 ft (28.4 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 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 | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Superstructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Substructure | 5 Fair | All primary structural elements are sound but may have minor section loss, cracking, spalling or scour. |
| Channel and channel protection | 6 Satisfactory | Structural elements show some minor deterioration. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Csah 53 over Little Cobb River built?
It was built in 1968, making it 57 years old in 2025.
What condition is Csah 53 over Little Cobb 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 2024.
How much traffic does Csah 53 over Little Cobb River carry?
About 338 vehicles per day (2021 count).
How long is Csah 53 over Little Cobb River?
The structure is 93 ft (28.4 m) long with a longest span of 31 ft (9.5 m) and a deck 34 ft wide.
Who owns Csah 53 over Little Cobb River?
It is owned by the County Highway Agency.