Structure 1566 · Chippewa County, MI
Carries M-123 over Kneebone Creek, SE Limits Of Trout Lake.
A culvert 22 ft across. Lengths are drawn to scale; at this length a semi-truck would be a speck. Each part is colored by its latest inspection rating. The inventory records lengths but not heights, so those are drawn as typical for a culvert.
| State | Michigan |
| County | Chippewa |
| Location | SE Limits Of Trout Lake |
| Carries | M-123 |
| Crosses | Kneebone Creek |
| Coordinates | 46.19306, -85.01823 |
| Material | Concrete |
| Design | Culvert |
| Total Length | 21.7 ft (6.6 m) |
| Max Span | 20.0 ft (6.1 m) |
| Deck Area | 68.6 sq m |
| Main Spans | 1 |
| Year Built | 2003 |
| Avg Daily Traffic | 1,388 (2007) |
| Truck Traffic | 8% |
| Lanes On Bridge | 2 |
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Scour Critical | 5 — Stable for scour |
| Structure Number | 000000000001566 |
Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."
A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.