Csah 20 over Watonwan River
Fair Condition49 years old1,160 vehicles/day
Location
| State | Minnesota |
| County | Blue Earth |
| Location | 1.4 Mi N Of Jct Csah 31 |
| Carries | Csah 20 |
| Crosses | Watonwan River |
| Coordinates | 44.02557, -94.22934 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 8 (Very Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Steel Continuous |
| Design | Stringer/Multi-beam |
| Total Length | 178.5 ft (54.4 m) |
| Max Span | 67.9 ft (20.7 m) |
| Deck Width | 47.9 ft (14.6 m) |
| Deck Area | 794.2 sq m |
| Main Spans | 3 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 1,160 (2021) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 07538 |