Nicholson Hill RD over Lwr S Br Thunder Bay Riv
Fair Condition62 years old1,000 vehicles/day
Location
| State | Michigan |
| County | Alpena |
| Location | Betw Sec 15&22 T29n R7e |
| Carries | Nicholson Hill RD |
| Crosses | Lwr S Br Thunder Bay Riv |
| Coordinates | 44.90272, -83.57640 |
Condition Ratings
| Overall Condition | Fair |
| Channel/Waterway | 4 (Poor) |
| Culvert | 6 (Satisfactory) |
| Scour Critical | 5 — Stable for scour |
Physical Characteristics
| Material | Steel |
| Design | Culvert |
| Total Length | 37.7 ft (11.5 m) |
| Max Span | 15.4 ft (4.7 m) |
| Deck Area | 126.5 sq m |
| Main Spans | 2 |
| Year Built | 1964 |
Traffic
| Avg Daily Traffic | 1,000 (2010) |
| Lanes On Bridge | 2 |
Inspection & Ownership
| Last Inspection | 824 |
| Inspection Frequency | Every 24 months |
| Owner | County Highway Agency |
| Historical Significance | Bridge is not eligible for the National Register |
| Structure Number | 000000000000337 |