Duffield Road over Shiawassee River
Good Condition102 years old1,618 vehicles/day
Location
| State | Michigan |
| County | Genesee |
| Location | North Of Silver Lake RD |
| Carries | Duffield Road |
| Crosses | Shiawassee River |
| Coordinates | 42.81679, -83.89530 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 8 (Very Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 3 — Scour critical |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 44.6 ft (13.6 m) |
| Max Span | 41.0 ft (12.5 m) |
| Deck Width | 39.0 ft (11.9 m) |
| Deck Area | 161.8 sq m |
| Main Spans | 1 |
| Year Built | 1924 (reconstructed 2010) |
Traffic
| Avg Daily Traffic | 1,618 (2018) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000002734 |