Patterson Lake RD over Portage Creek
Good Condition28 years old1,614 vehicles/day
Location
| State | Michigan |
| County | Livingston |
| Location | Sec 32 Putnam Twp |
| Carries | Patterson Lake RD |
| Crosses | Portage Creek |
| Coordinates | 42.43474, -83.98855 |
Condition Ratings
| Overall Condition | Good |
| Deck | 7 (Good) |
| Superstructure | 7 (Good) |
| Substructure | 7 (Good) |
| Channel/Waterway | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Prestressed Concrete |
| Design | Box Beam - Multiple |
| Total Length | 64.3 ft (19.6 m) |
| Max Span | 60.4 ft (18.4 m) |
| Deck Width | 44.3 ft (13.5 m) |
| Deck Area | 264.6 sq m |
| Main Spans | 1 |
| Year Built | 1998 |
Traffic
| Avg Daily Traffic | 1,614 (2013) |
| Truck Traffic | 3% |
| 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 | 000000000005806 |