Every bridge in Alpena County, Michigan
32 inventoried bridges, busiest first
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Alpena County, Michigan, has 32 bridges in the 2025 National Bridge Inventory: 11 rated good, 19 fair, and 2 poor (as of ).
- This index lists every one of them, busiest first; each links to its own condition record.
Source: FHWA National Bridge Inventory, 2025.
Alpena County bridge conditions · Michigan bridges by county.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.