Grassmere Road over Pinnebog River
Fair Condition30 years old675 vehicles/day
Location
| State | Michigan |
| County | Huron |
| Location | Sec. 25 Lake Twp. |
| Carries | Grassmere Road |
| Crosses | Pinnebog River |
| Coordinates | 43.95074, -83.12650 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 6 (Satisfactory) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 156.8 ft (47.8 m) |
| Max Span | 63.0 ft (19.2 m) |
| Deck Width | 34.4 ft (10.5 m) |
| Deck Area | 501.9 sq m |
| Main Spans | 3 |
| Year Built | 1996 |
Traffic
| Avg Daily Traffic | 675 (2009) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 823 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is on the National Register of Historic Places |
| Structure Number | 000000000003608 |