North Thayer Road over Cisco Br Ontonagon River
Poor Condition72 years old46 vehicles/day
Location
| State | Michigan |
| County | Gogebic |
| Location | Sec 32 Marenisco Twp |
| Carries | North Thayer Road |
| Crosses | Cisco Br Ontonagon River |
| Coordinates | 46.33642, -89.45258 |
Condition Ratings
| Overall Condition | Poor |
| Deck | 5 (Fair) |
| Superstructure | 7 (Good) |
| Substructure | 4 (Poor) |
| Channel/Waterway | 6 (Satisfactory) |
| Scour Critical | Unknown |
Physical Characteristics
| Material | Concrete |
| Design | Tee Beam |
| Total Length | 43.0 ft (13.1 m) |
| Max Span | 42.0 ft (12.8 m) |
| Deck Width | 17.7 ft (5.4 m) |
| Deck Area | 70.7 sq m |
| Main Spans | 1 |
| Year Built | 1954 |
Traffic
| Avg Daily Traffic | 46 (1998) |
| Lanes On Bridge | 1 |
Inspection & Ownership
| Last Inspection | 924 |
| Inspection Frequency | Every 12 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000003000 |