McDonough County, IL
210 public highway bridges
McDonough County Bridge Snapshot
According to the Federal Highway Administration's 2024 National Bridge Inventory, McDonough County, Illinois contains 210 public highway bridges. Roughly 51.9% are rated “Good,” 37.6% “Fair,” and 6.2% “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 (210)
CH-26 (FAS-441)
PoorOver: GRINDSTONE CREEK
NW-32-T4NR3W, McDonough, IL
TR 477
PoorOver: TRIB SUGAR CR
E.CTR-33-T4NR1W, McDonough, IL
TR 82
PoorOver: LAHARPE CREEK
SW-22-T7NR4W, McDonough, IL
TR 436
PoorOver: SUGAR CREEK
S.CTR-35-T4NR1W, McDonough, IL
MS-1505 BulingtonR
PoorOver: E Fork Lamoine River
SE-25-T6NR3W, McDonough, IL
FAS 1439 - CH 8
PoorOver: CAMP CREEK
NE-20-T4NR3W, McDonough, IL
FAS 441 - CH 9
PoorOver: CARTER CR
NE-24-T4NR2W, McDonough, IL
TR 418
PoorOver: DROWNING FORK
W.CTR-15-T7NR1W, McDonough, IL
ILL 9
PoorOver: DROWNING FORK
2 MI W OF ILL 41, McDonough, IL
TR 408
PoorOver: DROWNING FORK
SW-28-T7NR1W, McDonough, IL
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.