Csah 4 over Big Cobb River
Poor Condition63 years old253 vehicles/day
Location
| State | Minnesota |
| County | Blue Earth |
| Location | 0.1 Mi N Of Jct CR 164 |
| Carries | Csah 4 |
| Crosses | Big Cobb River |
| Coordinates | 43.96709, -93.91836 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 6 (Satisfactory) |
| Superstructure | 4 (Poor) |
| Substructure | 5 (Fair) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 4 — Foundations need monitoring |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Channel Beam |
| Total Length | 93.8 ft (28.6 m) |
| Max Span | 31.2 ft (9.5 m) |
| Deck Width | 32.2 ft (9.8 m) |
| Deck Area | 280.3 sq m |
| Main Spans | 3 |
| Year Built | 1963 |
Traffic
| Avg Daily Traffic | 253 (2021) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 07509 |