120th Avenue over Gun River Drain Ext
Good Condition22 years old120 vehicles/day
Location
| State | Michigan |
| County | Allegan |
| Location | Martin Twp Sec 12-13 |
| Carries | 120th Avenue |
| Crosses | Gun River Drain Ext |
| Coordinates | 42.56683, -85.55747 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 8 (Very Good) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 80.1 ft (24.4 m) |
| Max Span | 76.1 ft (23.2 m) |
| Deck Width | 31.2 ft (9.5 m) |
| Deck Area | 231.8 sq m |
| Main Spans | 1 |
| Year Built | 2004 |
Traffic
| Avg Daily Traffic | 120 (2020) |
| Truck Traffic | 5% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 423 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000278 |