Mackinac County, MI
7 public highway bridges
Mackinac County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Mackinac County, Michigan contains 7 public highway bridges. Roughly 0% are rated “Good,” 71.4% “Fair,” and 28.6% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.
Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.
Source: FHWA National Bridge Inventory. See methodology for full definitions.
Condition Distribution
All Bridges (7)
3332
FairOver: CARP RIVER
3.062 WEST ON 3332, Mackinac, MI
KENNETH ROAD
FairOver: N. BRANCH CARP RIVER
3 M S & 5 M E OF OZARK, Mackinac, MI
USFS RTE 3303
FairOver: BREVOORT RIVER
1.3 MI W CO RTE H57, Mackinac, MI
KENNETH ROAD
FairOver: TAYLOR CREEK
3 M S & 3 M E OF OZARK, Mackinac, MI
USFS RTE 3108
FairOver: LITTLE BREVOORT RIVER
1.7 MI N US-2, Mackinac, MI
USFS RTE 3458
PoorOver: CARP RIVER
3 MI N BURMA ROAD, Mackinac, MI
USFS RTE 3445
PoorOver: CARP RIVER
0.1 MI W H63, Mackinac, MI
Read our methodology - how this data is sourced, computed, and verified.
Related
Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.