M-32 Bs|s State ST over Thunder Bay River

Fair Condition17 years old6,400 vehicles/day

Location

StateMichigan
CountyMontmorency
LocationIn Hillman
CarriesM-32 Bs|s State ST
CrossesThunder Bay River
Coordinates45.06262, -83.90074

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure6 (Satisfactory)
Substructure6 (Satisfactory)
Channel/Waterway7 (Good)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Single/Spread
Total Length180.1 ft (54.9 m)
Max Span85.0 ft (25.9 m)
Deck Width53.1 ft (16.2 m)
Deck Area889.4 sq m
Main Spans2
Year Built2009

Traffic

Avg Daily Traffic6,400 (2010)
Truck Traffic7%
Lanes On Bridge2

Inspection & Ownership

Last Inspection724
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000007542