Total Bridges
27,743
Public highway bridges in Illinois
State profile · Near median Poor share
Illinois bridge safety
Condition ratings, load ratings, and Poor-condition data for every public highway bridge in Illinois, based on the FHWA National Bridge Inventory.
- 27,743
- Public bridges
- 41.2%
- Good condition
- 7.9%
- Poor condition
Data updated May 2026
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%
Illinois vs national bridge condition
Illinois - Good condition share 41.2%
National avg
Share of bridges rated 7-9 on the FHWA 0-9 scale (deck, superstructure, substructure all good).
Illinois - Poor-condition share 26.3%
National avg
Lower is better. Bar maxes at 30% (worst-state ceiling). National average sits at 7.0%.
Condition Distribution
Counties (102)
Adams 325 Alexander 96 Bond 165 Boone 111 Brown 71 Bureau 382 Calhoun 81 Carroll 185 Cass 77 Champaign 743 Christian 323 Clark 232 Clay 171 Clinton 187 Coles 308 Cook 2185 Crawford 196 Cumberland 169 De Witt 197 DeKalb 264 Douglas 234 DuPage 380 Edgar 278 Edwards 79 Effingham 260 Fayette 356 Ford 300 Franklin 323 Fulton 210 Gallatin 82 Greene 166 Grundy 269 Hamilton 164 Hancock 291 Hardin 58 Henderson 144 Henry 331 Iroquois 565 Jackson 235 Jasper 180 Jefferson 270 Jersey 111 Jo Daviess 198 Johnson 120 Kane 354 Kankakee 352 Kendall 133 Knox 321 LaSalle 529 Lake 286 Lawrence 183 Lee 372 Livingston 578 Logan 296 Macon 368 Macoupin 248 Madison 543 Marion 301 Marshall 153 Mason 85 Massac 138 McDonough 210 McHenry 229 McLean 624 Menard 90 Mercer 162 Monroe 130 Montgomery 261 Morgan 241 Moultrie 171 Ogle 377 Peoria 365 Perry 139 Piatt 249 Pike 338 Pope 86 Pulaski 106 Putnam 50 Randolph 155 Richland 147 Rock Island 256 Saline 176 Sangamon 480 Schuyler 121 Scott 96 Shelby 330 St. Clair 502 Stark 89 Stephenson 332 Tazewell 361 Union 192 Vermilion 515 Wabash 88 Warren 202 Washington 232 Wayne 264 White 210 Whiteside 280 Will 674 Williamson 204 Winnebago 475 Woodford 222
Illinois vs nearby ranks
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
Rhode Island
7.69% top marginal rate
NE
Nebraska
7.73% top marginal rate
IL
Illinois
7.88% top marginal rate
MA
Massachusetts
7.96% top marginal rate
MO
Missouri
8.53% top marginal rate
Bridges Needing Most Attention in Illinois
Six lowest-condition bridges in Illinois, ranked by the portal's composite display score. Inspection intervals are risk-based under current NBIS rules.
FAS 1599
PoorOver: DRAINAGE CANAL
2.2 MI E MEYER, Adams, IL
Built 1980 Load: 0.6 t ADT: 200
CH 15
PoorOver: E FK MAZONRIVER
0.05 MI W CH 16, Grundy, IL
Built 1977 Load: 1.0 t ADT: 1,400
MOOSE RD - TR 240
PoorOver: WILSON CREEK
NE-35-T3NR2E, Fulton, IL
Built 1935 Load: 1.3 t ADT: 10
TR 10-B
PoorOver: KING CREEK
W EDGE OF MINERAL, Bureau, IL
Built 1899 Load: 1.6 t ADT: 10
TR-6
PoorOver: DRAINAGE DITCH
3.5 MI NE DIETERICH, Effingham, IL
Built 1909 Load: 1.6 t ADT: 25
TR208K(TWIN BRIDGE
PoorOver: BIG CREEK
NE EDGE MT ZION, Macon, IL
Built 1967 Load: 1.9 t ADT: 375
All Bridges in Illinois
CH 18
GoodOver: WEBSTER CREEK
0.5 MI N OF NOLTINGS, Washington, IL
Built 1992 Load: 32.4 t ADT: 525
TR 2
GoodOver: BRANCH LITTLE MUD CK
5 MI SW ST. LIBORY, Washington, IL
Built 1991 Load: 32.4 t ADT: 175
TR 56
GoodOver: BRANCH ELKHORN CK
2.5 MI N CH 10, Washington, IL
Built 1991 Load: 32.4 t ADT: 50
TR 7
GoodOver: BR OF CROOKED CR
4 MI NW OF HOYLETON, Washington, IL
Built 1992 Load: 32.4 t ADT: 275
TR 250
GoodOver: FULTON BRANCH
1 MI W OF WAMAC, Washington, IL
Built 1992 Load: 32.4 t ADT: 50
TR 229
GoodOver: SUGAR CREEK
4 MI W OF RADOM, Washington, IL
Built 1992 Load: 32.4 t ADT: 75
TR 44A
GoodOver: MUD CREEK
6 MI SE OF LIVELY GR, Washington, IL
Built 1992 Load: 32.4 t ADT: 100
TR 188A
GoodOver: MIDDLE CREEK
2.25 MI N. BEAUCOUP, Washington, IL
Built 1994 Load: 32.4 t ADT: 10
TR 35
GoodOver: BR OF GRAND POINT CK
2.75 MI NE HOYLETON, Washington, IL
Built 1994 Load: 32.4 t ADT: 25
TR 257
GoodOver: PANTHER CREEK
3.8MI EAST OF POSEN, Washington, IL
Built 1995 Load: 32.4 t ADT: 50
TR 160
GoodOver: TRIB TO COON CREEK
3M NW OF HOYLETON, Washington, IL
Built 1995 Load: 32.4 t ADT: 50
CH 18
GoodOver: WEBSTER CK OVERFLOW
NORTH OF NOLTINGS, Washington, IL
Built 1994 Load: 32.4 t ADT: 525
CH 18
GoodOver: SEWER CREEK OVERFLOW
NORTH OF NOLTINGS, Washington, IL
Built 1994 Load: 32.4 t ADT: 550
TR 206A
GoodOver: BACK CREEK
3MI SE OF BEAUCOUP, Washington, IL
Built 1995 Load: 32.4 t ADT: 75
TR 214
GoodOver: BR. GRAND POINT CK
2.5 MI NE HOYLETON, Washington, IL
Built 1996 Load: 32.4 t ADT: 100
TR 235
GoodOver: BR. OF MUD CREEK
2.5M SW OF LIVELY GR, Washington, IL
Built 1996 Load: 32.4 t ADT: 100
TR 229
GoodOver: BEAUCOUP CREEK
4 MI S BEAUCOUP, Washington, IL
Built 1996 Load: 32.4 t ADT: 75
TR 182
GoodOver: BR OF NORTH CK
1.5 MI N. HUEGELY, Washington, IL
Built 1998 Load: 32.4 t ADT: 100
TR 166
GoodOver: BR.OF LOCUST CREEK
1 MI WEST OF POSEN, Washington, IL
Built 1998 Load: 32.4 t ADT: 50
TR 202/ARIZONA RD
GoodOver: BR.OF MIDDLE CREEK
2 MI NE OF BEAUCOUP, Washington, IL
Built 1998 Load: 32.4 t ADT: 25
TR77A MAPLE RD
GoodOver: BR. GRAND POINT CK
4 MI SE HOYLETON, Washington, IL
Built 1999 Load: 32.4 t ADT: 50
TR 53 WILLOW ROAD
GoodOver: BR LITTLE CROCKED CK
SE EDGE NEW MINDEN, Washington, IL
Built 1999 Load: 32.4 t ADT: 50
TR 198 PANTHER CK
GoodOver: BR. PANTHER CREEK
4 MI. SE POSEN, Washington, IL
Built 1999 Load: 32.4 t ADT: 75
TR177 MASSACHUSE R
GoodOver: BR OF RAYSE CK
2MI E OF ASHLEY, Washington, IL
Built 2000 Load: 32.4 t ADT: 250
TR 98/CLEVELAND RD
GoodOver: ELKHORN CREEK
2.25MI NE OF OAKDALE, Washington, IL
Built 2003 Load: 32.4 t ADT: 50
TR285/TENNESEE RD
GoodOver: PUNCHEON CREEK
3 MI NE OF DUBOIS, Washington, IL
Built 2000 Load: 32.4 t ADT: 25
TR 90/PLUM HILL CH
GoodOver: BR. OF WILLIAMS CK.
4MI SW OF ADDIEVILLE, Washington, IL
Built 2003 Load: 32.4 t ADT: 50
TR 190/BIRCH RD
GoodOver: BR OF NORTH CREEK
3.25MI SW HOYLETON, Washington, IL
Built 2005 Load: 32.4 t ADT: 25
TR 222/ASH RD
GoodOver: BR. OF GRAND PT CK
3MI SW IRVINGTON, Washington, IL
Built 2004 Load: 32.4 t ADT: 75
TR 165
GoodOver: BR OF WILLIAMS CREEK
2MI SSW PLUM HILL, Washington, IL
Built 2010 Load: 32.4 t ADT: 25
TR 224
GoodOver: BR LITTLE MUDDY CRE
1.75MI NORHT DUBOIS, Washington, IL
Built 2010 Load: 32.4 t ADT: 50
TR 35/WALNUT HILL
GoodOver: BR LITTLE CROOKED CR
1.5MI NE NEW MINDEN, Washington, IL
Built 2005 Load: 32.4 t ADT: 200
TR 277
GoodOver: BR OF S FORK MUD CK
NE 1/4 SEC34 T35 R5W, Washington, IL
Built 2007 Load: 32.4 t ADT: 200
TR 235
GoodOver: BR MUD CREEK
3.5M W OF CLARMIN, Washington, IL
Built 2008 Load: 32.4 t ADT: 1,150
FAS 836 (CH8)
GoodOver: LITTLE MUDDY RIVER
0.5 MI EAST DUBOIS, Washington, IL
Built 2010 Load: 32.4 t ADT: 550
TR 145
GoodOver: Elkhorn Creek
1.25 Mi E of IL 153, Washington, IL
Built 2014 Load: 32.4 t ADT: 75
TR 178 Elm Road
GoodOver: Coon Creek
2 Mi NW of Hoyleton, Washington, IL
Built 2015 Load: 32.4 t ADT: 75
FAS 788 (CH 11)
GoodOver: Branch of North Crk
0.5 Mi S of IL 177, Washington, IL
Built 2015 Load: 32.4 t ADT: 575
IRVINGTON RD-MS570
GoodOver: WEBSTER CREEK
1.4MI S WASH CO LINE, Washington, IL
Built 1988 Load: 32.4 t ADT: 375
FAP-328 (US-45)
GoodOver: WATSON CREEK
.8 MI N WHITE CO LN, Wayne, IL
Built 1974 Load: 32.4 t ADT: 2,000
TR-576
GoodOver: MILLER CREEK
1.5 MI N MT ERIE, Wayne, IL
Built 1984 Load: 32.4 t ADT: 25
TR-267
GoodOver: DRY FORK
7 MI N SIMS, Wayne, IL
Built 1978 Load: 32.4 t ADT: 100
FAS-2821
GoodOver: DRY FORK
5 MI W GEFF, Wayne, IL
Built 1984 Load: 32.4 t ADT: 100
TR-381
GoodOver: CROOKED CREEK
4 MI N WAYNE CITY, Wayne, IL
Built 1980 Load: 32.4 t ADT: 100
TR-329
GoodOver: LITTLE DRY FORK CK
4.5 MI N SIMS, Wayne, IL
Built 1981 Load: 32.4 t ADT: 75
TR-40
GoodOver: FOUR MILE CREEK
2.5 MI SW KEENES, Wayne, IL
Built 1981 Load: 32.4 t ADT: 100
TR-329
GoodOver: CROOKED CREEK
0.5 MI W CRISP, Wayne, IL
Built 1982 Load: 32.4 t ADT: 75
TR-207
GoodOver: WEST DIVERSION DITCH
2.5 MI SE MT ERIE, Wayne, IL
Built 1982 Load: 32.4 t ADT: 25
TR-129
GoodOver: ENDSLEY CREEK
3.5 MI NE CISNE, Wayne, IL
Built 1983 Load: 32.4 t ADT: 50
TR-463
GoodOver: TRIB EAGLE SLOUGH
S FAIRFIELD WYE, Wayne, IL
Built 1983 Load: 32.4 t ADT: 50
Showing 21,451-21,500 of 27,743 bridges
Related
Data sourced from the FHWA National Bridge Inventory (NBI), latest released cycle. See our methodology for details. Retrieved and formatted by PlainBridges.
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.