M-123 over Carp River
Fair Condition65 years old1,041 vehicles/day
Location
| State | Michigan |
| County | Mackinac |
| Location | 2.8 Mi NW Of Green |
| Carries | M-123 |
| Crosses | Carp River |
| Coordinates | 46.05770, -84.89590 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 8 — Stable, low risk |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 45.6 ft (13.9 m) |
| Max Span | 44.0 ft (13.4 m) |
| Deck Width | 42.7 ft (13 m) |
| Deck Area | 180.7 sq m |
| Main Spans | 1 |
| Year Built | 1961 |
Traffic
| Avg Daily Traffic | 1,041 (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 | 000000000005973 |