Mcmurphy Road over Thunder Bay River
Good Condition23 years old60 vehicles/day
Location
| State | Michigan |
| County | Montmorency |
| Location | Sections 20-21 Avery Twp |
| Carries | Mcmurphy Road |
| Crosses | Thunder Bay River |
| Coordinates | 44.97419, -84.09359 |
Condition Ratings
| Overall Condition | Good |
| Channel/Waterway | 7 (Good) |
| Culvert | 7 (Good) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Concrete |
| Design | Culvert |
| Total Length | 44.3 ft (13.5 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Area | 122.8 sq m |
| Main Spans | 1 |
| Year Built | 2003 |
Traffic
| Avg Daily Traffic | 60 (2009) |
| Truck Traffic | 3% |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | November 2023 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000012717 |