Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near median Poor share
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.
Data updated May 2026
Total Bridges
27,743
Public highway bridges in Illinois
Good Condition
41.2%
11,426 bridges rated 7-9
-8.8pp vs 50% benchmark
Poor Condition
7.9%
2,186 bridges whose lowest applicable component is rated 0-4
0.9pp vs national avg 7.0%
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Adjacent states by Poor-condition share (lower share = better)
States are ranked by the share of bridges whose lowest applicable component rating is 4 or below. This describes recorded condition; it does not measure funding effectiveness or live crossing safety. States here sit immediately above and below Illinois on the same metric.
RI
NE
IL
MA
MO
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
Over: DRAINAGE CANAL
2.2 MI E MEYER, Adams, IL
Over: E FK MAZONRIVER
0.05 MI W CH 16, Grundy, IL
Over: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Over: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Over: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Over: BIG CREEK
NE EDGE MT ZION, Macon, IL
Over: THORN CREEK
.7MI N EXCHANGE RD, Will, IL
Over: DUPAGE RIVER
.8M W OF PLNFELD RD, Will, IL
Over: MINK CREEK
.2M N OF AIRPORT RD, Will, IL
Over: DUPAGE RIVER
1.2M W of IL59, Will, IL
Over: DUPAGE RIVER
300FT E OF RIVER RD, Will, IL
Over: QUARRY
0.3M WEST BRANDON RD, Will, IL
Over: SUGAR RUN CREEK
0.6 MI NE BRANDON RD, Will, IL
Over: STREAM
.9 S LARAWAY RD, Will, IL
Over: JACKSON CREEK
0.25 M.W CHERRY HILL, Will, IL
Over: PRAIRIE CREEK
0.4M.N.OF HOFF RD., Will, IL
Over: FORKEDCREEK
5.0M.S.E.OF MANHATEN, Will, IL
Over: PRAIRIE CREEK
0.8MIS.MANHATTAN-MON, Will, IL
Over: JACKSON CREEKTRIB
3.5 M S US-30, Will, IL
Over: PRAIRIE CREEK
0.2 M N HOFF RD, Will, IL
Over: TRIB PRAIRIE CREEK
0.1M S MAHATTEN MONE, Will, IL
Over: FORKED CREEK
1.1 MI S. MAIN-MONEE, Will, IL
Over: FORKED CREEK
0.5 MI S OF GORMAN R, Will, IL
Over: PRAIRIE CREEK
02 M SO MANH MON RD, Will, IL
Over: RYANS CREEK
N OF IL 102, Will, IL
Over: TRIB FORKED CREEK
2.9 MI E US-45, Will, IL
Over: LONG RUN CREEK
2 M N IL 171, Will, IL
Over: BLACK WALNUT CR
0.40 MI S PAULING RD, Will, IL
Over: ROCK CREEK
.3 M E.ILL 50, Will, IL
Over: TRIB. ROCK CREEK
0.5 MI E EGYP. TR RD, Will, IL
Over: HICKORY CR TRIB #2
0.64 M E OF WOLF, Will, IL
Over: PLUM CREEK
0.5 MI S IL 394, Will, IL
Over: CLAYPOOL DRAIN DITCH
0.7 MI NO IL 113, Will, IL
Over: FORKED CREEK
0.9 MI E IL 102 N, Will, IL
Over: JORDAN CREEK
0.2 M SO WILM-PEOTON, Will, IL
Over: JORDAN CREEK
0.8M E.OLD CHICAGORD, Will, IL
Over: JORDAN CREEK
1.7M E IL 53, Will, IL
Over: TRIB OF JORDAN CREEK
0.4 MI N E KAHLER RD, Will, IL
Over: STREAM
1.8 MI S US 52, Will, IL
Over: S.BR.FORKED CREEK
3.7 MI SO US 52, Will, IL
Over: FORKED CREEK
0.9 MI S WIL PECT RD, Will, IL
Over: FORKED CREEK
O.4M S WIL-PEOTO RD, Will, IL
Over: Forked Creek
0.5M W WILTON CENTRD, Will, IL
Over: FORKED CREEK
0.2 M S WILM-PEOT RD, Will, IL
Over: ROCK CREEK
1 MI W.PEOTONE, Will, IL
Over: ROCK CREEK
1 MI N PEOTONE, Will, IL
Over: ROCK CREEK
0.6 MI NO. KKK ROAD, Will, IL
Over: S.BRANCH FORKED CR.
0.8 MI E CENTER RD., Will, IL
Over: S BR FORKED CR
0.2 MI S OFFNER RD, Will, IL
Over: BLACK WALNUT CRK
.7M E of IL50, Will, IL
Over: S.BR.OF FORKED CREEK
0.4MI E. OF US45, Will, IL
Over: ROCK CREEK
2.3 MI E US 45, Will, IL
Over: S Br Forked Creek
1.2N KANKAKEE CO, Will, IL
Over: EXLINE SLOUGH
0.50 MI N KENNEDY RD, Will, IL
Over: MARSHALL SLOUGH
2.5M.E.OF IL-50, Will, IL
Over: BLACK WALNUT CR.(W)
1.9 M E OF IL 50, Will, IL
Showing 10,051-10,100 of 27,743 bridges
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the FHWA National Bridge Inventory (NBI). Poor condition is an inspection-record category, not a closure or unsafe-to-cross designation. Consult the bridge owner for current status.
Understanding Bridge Conditions
How FHWA rates bridge condition on a 0-9 scale.
Check Your Daily Bridges
How to look up bridge condition data for bridges on your route.
Read our methodology — how this data is sourced, computed, and verified.
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.