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: TRIB. ROCK CREEK
.18 MI N OF RICK RD, Whiteside, IL
Over: TRIB ROCK CREEK
5 MI N. OF MORRISON, Whiteside, IL
Over: ROCK CREEK
3 MI NE ERIE, Whiteside, IL
Over: BR OF ROCK CREEK
5 M SW OF MORRISON, Whiteside, IL
Over: LYNN CREEK
5 MI SW OF MORRISON, Whiteside, IL
Over: CATTAIL CREEK
2 MI SE OF FULTON, Whiteside, IL
Over: BNSF RR
3 MI E OF FULTON, Whiteside, IL
Over: CEDAR CREEK
.56 MI W ELSTON RD, Whiteside, IL
Over: SPRING CREEK
6 MI NW STERLING, Whiteside, IL
Over: SPRING CREEK
5 MI NW OF STERLING, Whiteside, IL
Over: BRANCH OF ROCK CREEK
6 MI NE OF MORRISON, Whiteside, IL
Over: BRANCH OF ROCK CREEK
7 MI NE OF MORRISON, Whiteside, IL
Over: BR LITTLE SPRING CRK
9 MI. NE. MORRISON, Whiteside, IL
Over: TRIB. ELKHORN CREEK
2.5 MI NE COLETA, Whiteside, IL
Over: ROCK CREEK TRIB
6MI NE OF MORRISON, Whiteside, IL
Over: GREEN RIVER
2.5 MI E DEER GROVE, Whiteside, IL
Over: GREEN RIVER
0.5 M E DEER GROVE, Whiteside, IL
Over: SUGAR CREEK
3 MI N OF STERLING, Whiteside, IL
Over: SKUNK CREEK
6 MI N OF STERLING, Whiteside, IL
Over: BUFFALO CREEK
9 MI N. STERLING, Whiteside, IL
Over: SKUNK CREEK
6 MI. N. OF STERLING, Whiteside, IL
Over: BUFFALO CREEK
9 MI N OF STERLING, Whiteside, IL
Over: FEEDER OF ROCK RIVER
4 MI SE OF MORRISON, Whiteside, IL
Over: Rock Creek
.5M NW MORRISON, Whiteside, IL
Over: UNNAMED CREEK
0.3 M S OF ST MARYS, Whiteside, IL
Over: COUNTY DITCH NO.1
2 MI. NW TAMPICO, Whiteside, IL
Over: BR OF ROCK CREEK
3 MI SW MORRISON, Whiteside, IL
Over: BRANCH OF ROCK CREEK
1 MI. W. OF MORRISON, Whiteside, IL
Over: OTTER CREEK
8 MI NW OF MORRISON, Whiteside, IL
Over: OTTER CREEK
3 MI N.E. OF FULTON, Whiteside, IL
Over: TRIB TO SPRING BROOK
4 MI NW OF MORRISON, Whiteside, IL
Over: DRESDEN RUN
.50 MI E MCLINDON RD, Will, IL
Over: E. AUX CREEK
1.5 MI. W OF CH22, Will, IL
Over: DU PAGE RIVER
W OF IL 59, Will, IL
Over: ROCK RUN CREEK TRIB
0.72 M N OF IL 7, Will, IL
Over: CLAY POOL CREEK
0.3 M E 0F I-55, Will, IL
Over: SUNNYLAND DRAIN
1.4 MI E IL 59, Will, IL
Over: BLACK WALNUT CREEK
400 SO EAGLE LK RD, Will, IL
Over: DES PLAINES RIVER
1/4 MI S US 6, Will, IL
Over: Jackson Creek
.6 Mi N Manhattan Rd, Will, IL
Over: E BR DUPAGE RIVER
0.2 MI S ROYCE RD., Will, IL
Over: W.BR.DUPAGE RIVER
0.2 MI NW Naper Blvd, Will, IL
Over: S. BR ROCK CREEK
1.8M S OF BEACHER RD, Will, IL
Over: BLACK WALNUT CREEK
1.5M.E.OF IL-50, Will, IL
Over: S.BR.ROCK CREEK
0.8 M E WILTON RD, Will, IL
Over: N. BR JACKSON CREEK
0.6MI N LARAWAY RD, Will, IL
Over: ROCK CREEK
0.5 MI W I-57, Will, IL
Over: S.BR. FORKED CREEK
0.1 MI N PEOTONE RD, Will, IL
Over: KLEMME CREEK
0.3 M W STATE LI RD, Will, IL
Over: WEST NORMAN DRAIN
0.1 M W IL 59, Will, IL
Showing 10,001-10,050 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.