Csah 4 over Rock River Overflow
Good Condition24 years old2,750 vehicles/day
Location
| State | Minnesota |
| County | Rock |
| Location | 0.6 Mi E Of Jct Csah 18 |
| Carries | Csah 4 |
| Crosses | Rock River Overflow |
| Coordinates | 43.65284, -96.19283 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete Continuous |
| Design | Slab |
| Total Length | 112.5 ft (34.3 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 47.2 ft (14.4 m) |
| Deck Area | 493.9 sq m |
| Main Spans | 3 |
| Year Built | 2002 |
Traffic
| Avg Daily Traffic | 2,750 (2018) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 67544 |