Polk Road over Pine River
Fair Condition43 years old114 vehicles/day
Location
| State | Michigan |
| County | Gratiot |
| Location | Sec 24-25 Sumner Twp |
| Carries | Polk Road |
| Crosses | Pine River |
| Coordinates | 43.32115, -84.74008 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 6 (Satisfactory) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 129.9 ft (39.6 m) |
| Max Span | 63.0 ft (19.2 m) |
| Deck Width | 34.1 ft (10.4 m) |
| Deck Area | 411.8 sq m |
| Main Spans | 2 |
| Year Built | 1983 |
Traffic
| Avg Daily Traffic | 114 (2004) |
| Truck Traffic | 7% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 724 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000003242 |