Bridges in Alcona County, Michigan
27Total Bridges
13Good
9Fair
5Poor
Alcona County, Michigan has 27 bridges tracked in the National Bridge Inventory. Of these, 5 (18%) are rated in poor condition and 13 are rated good. The oldest bridge in Alcona County is Us-23 over Black River, built in 1935. The longest is Bamfield Road Fh08 over Au Sable River at 220.1 feet.