Us-31 NB over S Branch Pentwater River
Fair Condition49 years old4,171 vehicles/day
Location
| State | Michigan |
| County | Oceana |
| Location | 3 Mi NW Of Hart |
| Carries | Us-31 NB |
| Crosses | S Branch Pentwater River |
| Coordinates | 43.74148, -86.38927 |
Condition Ratings
| Overall Condition | Fair |
| Deck | 5 (Fair) |
| Superstructure | 5 (Fair) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Stringer/Multi-beam |
| Total Length | 210.0 ft (64 m) |
| Max Span | 94.8 ft (28.9 m) |
| Deck Width | 44.0 ft (13.4 m) |
| Deck Area | 857.6 sq m |
| Main Spans | 3 |
| Year Built | 1977 |
Traffic
| Avg Daily Traffic | 4,171 (2007) |
| Truck Traffic | 11% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | State Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000008335 |