M-21 over North Swargart Drain
Poor Condition49 years old4,192 vehicles/day
Location
| State | Michigan |
| County | Clinton |
| Location | 3.2 Mi E Of Fowler |
| Carries | M-21 |
| Crosses | North Swargart Drain |
| Coordinates | 43.00170, -84.67506 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 3 (Serious) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 30.2 ft (9.2 m) |
| Max Span | 30.2 ft (9.2 m) |
| Deck Width | 51.8 ft (15.8 m) |
| Deck Area | 145.4 sq m |
| Main Spans | 1 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 4,192 (2007) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 12 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001882 |