M-21 over Lewis Drain
Good Condition28 years old6,438 vehicles/day
Location
| State | Michigan |
| County | Shiawassee |
| Location | 1.4 Mi E Of Clinton Col |
| Carries | M-21 |
| Crosses | Lewis Drain |
| Coordinates | 42.99904, -84.34021 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 6 (Satisfactory) |
| Culvert | 7 (Good) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.7 ft (6.6 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Area | 87.1 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 6,438 (2007) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000009771 |