Glenbrook Road over Portage River
Fair Condition66 years old640 vehicles/day
Location
| State | Michigan |
| County | Livingston |
| Location | Sec 31-32 Putnam Twp |
| Carries | Glenbrook Road |
| Crosses | Portage River |
| Coordinates | 42.42482, -84.00374 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 8 (Very Good) |
| Culvert | 5 (Fair) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 24.0 ft (7.3 m) |
| Max Span | 9.8 ft (3 m) |
| Deck Area | 62.0 sq m |
| Main Spans | 2 |
| Year Built | 1960 |
Traffic
| Avg Daily Traffic | 640 (2014) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | October 2024 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000005833 |