Csah 21 over Swan River
Fair Condition65 years old511 vehicles/day
Location
| State | Minnesota |
| County | Itasca |
| Location | 0.6 Mi W Of Jct Csah 10 |
| Carries | Csah 21 |
| Crosses | Swan River |
| Coordinates | 47.23197, -93.36779 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Wood or Timber |
| Design | Stringer/Multi-beam |
| Total Length | 46.6 ft (14.2 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 29.9 ft (9.1 m) |
| Deck Area | 129.2 sq m |
| Main Spans | 1 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 511 (2022) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 31503 |