Trowbridge Road over Sturgeon River
Fair Condition49 years old410 vehicles/day
Location
| State | Michigan |
| County | Cheboygan |
| Location | Sec 20 T33nr2w |
| Carries | Trowbridge Road |
| Crosses | Sturgeon River |
| Coordinates | 45.23202, -84.58849 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 6 (Satisfactory) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 51.8 ft (15.8 m) |
| Max Span | 47.9 ft (14.6 m) |
| Deck Width | 30.2 ft (9.2 m) |
| Deck Area | 145.4 sq m |
| Main Spans | 1 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 410 (2005) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 723 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000001540 |