M-100 over Thornapple Drain
Good Condition11 years old5,425 vehicles/day
Location
| State | Michigan |
| County | Eaton |
| Location | 3.5 Mi N Of I-69 |
| Carries | M-100 |
| Crosses | Thornapple Drain |
| Coordinates | 42.67323, -84.73942 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 9 (Excellent) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 34.1 ft (10.4 m) |
| Max Span | 32.2 ft (9.8 m) |
| Deck Area | 139.4 sq m |
| Main Spans | 1 |
| Year Built | 2015 |
Traffic
| Avg Daily Traffic | 5,425 (2015) |
| Truck Traffic | 4% |
| 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 | 000000000002283 |