M-65 over Au Sable River

Fair Condition23 years old2,497 vehicles/day

Location

StateMichigan
CountyIosco
Location4.5 Mi S Of Alcona Col
CarriesM-65
CrossesAu Sable River
Coordinates44.45393, -83.67413

Condition Ratings

Overall ConditionFair
Deck6 (Satisfactory)
Superstructure7 (Good)
Substructure6 (Satisfactory)
Channel/Waterway8 (Very Good)
Scour Critical5 — Stable for scour

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length753.9 ft (229.8 m)
Max Span128.6 ft (39.2 m)
Deck Width47.2 ft (14.4 m)
Deck Area3309.1 sq m
Main Spans6
Year Built2003

Traffic

Avg Daily Traffic2,497 (2007)
Truck Traffic16%
Lanes On Bridge2

Inspection & Ownership

Last Inspection723
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000013132