Mason Road over S Br Shiawassee River
Good Condition40 years old2,760 vehicles/day
Location
| State | Michigan |
| County | Livingston |
| Location | Sec 34 Howell Twp |
| Carries | Mason Road |
| Crosses | S Br Shiawassee River |
| Coordinates | 42.60001, -83.96361 |
Condition Ratings
| Overall Condition | Good |
| Deck | 8 (Very Good) |
| Superstructure | 9 (Excellent) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 8 (Very Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Box Beam - Single/Spread |
| Total Length | 35.8 ft (10.9 m) |
| Max Span | 33.5 ft (10.2 m) |
| Deck Width | 42.3 ft (12.9 m) |
| Deck Area | 140.6 sq m |
| Main Spans | 1 |
| Year Built | 1986 (reconstructed 2022) |
Traffic
| Avg Daily Traffic | 2,760 (2020) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 424 |
| Inspection Frequency | Every 16 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000005816 |