Gratiot County, MI
10 public highway bridges
Gratiot County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, Gratiot County, Michigan contains 10 public highway bridges. Roughly 50% are rated “Good,” 30% “Fair,” and 10% “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 (10)
M-57
UnknownOver: US-127
WASHINGTON TWP SEC 8 & 17, Gratiot, MI
PENDELL ROAD
FairOver: DRAIN #290
SEC 1 SUMNER TWP, Gratiot, MI
LINCOLN ROAD
FairOver: DRAIN #96
SEC 36 SEVILLE TWP, Gratiot, MI
BLAIR ROAD
FairOver: BAD RIVER DRAIN
SEC 13-14 NORTH STAR TWP, Gratiot, MI
M-46
GoodOver: W BR PINE RIVER
2.1 MI W OF US 27, Gratiot, MI
MASON ROAD
GoodOver: POTATO CREEK DRAIN
SEC 1-2 HAMILTON TWP, Gratiot, MI
TAFT ROAD
GoodOver: OTTER CREEK
FULTON TWP SEC 19, Gratiot, MI
ST CHARLES ROAD
GoodOver: BAD RIVER
SEC 26-35 LAFAYETTE TWP, Gratiot, MI
WASHINGTON ROAD
GoodOver: BAD RIVER
SEC 34 LAFAYETTE TWP, Gratiot, MI
M-46
PoorOver: SEVILLE SUMNER DRAIN
@ PINGREE RD, Gratiot, MI
Read our methodology - how this data is sourced, computed, and verified.
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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.