Ontonagon County, MI
5 public highway bridges
Ontonagon County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Ontonagon County, Michigan contains 5 public highway bridges. Roughly 20% are rated “Good,” 80% “Fair,” and 0% “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 (5)
FOREST ROAD 5250
FairOver: M BR ONTONAGON RIVER
6 MI N 5 MI E OF WATERSM, Ontonagon, MI
FOREST ROAD 400
FairOver: CASCADE CREEK
4 MI N 5 MI E OF BERGLAND, Ontonagon, MI
FOREST ROAD 6930
FairOver: CISCO BR ONTONAGON RIVER
8 MI W OF PAULDING, Ontonagon, MI
FOREST ROAD 360
FairOver: IRON RIVER
6 MI N 4 MI W OF BERGLAND, Ontonagon, MI
FR 210
GoodOver: NUTHATCH CREEK
4.4 MILES NORTH OF M-28, Ontonagon, 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.