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
TR 296
FairOver: FLAT BRANCH
2MI W MOWEQUEA, Christian, IL
Built 2002 Load: 32.4 t ADT: 225
CH 10-FAS 732
FairOver: BEAR CREEK
1 MI E MORRISONVILLE, Christian, IL
Built 2002 Load: 32.4 t ADT: 500
TR 2A
FairOver: PRAIRIE FORK
1 M N HARVEL, Christian, IL
Built 2007 Load: 32.4 t ADT: 50
CH-10 FAS 732
FairOver: PRAIRIE CREEK
1 M W MORRISONVILLE, Christian, IL
Built 2002 Load: 32.4 t ADT: 800
FAS 732 (CH 10)
FairOver: MILLER BRANCH
2.5 E MORRISONVILLE, Christian, IL
Built 2006 Load: 32.4 t ADT: 400
TR 78
FairOver: LOWIS BRANCH
3MI SE MORRISONVILLE, Christian, IL
Built 2005 Load: 32.4 t ADT: 100
TR 235
FairOver: PRAIRIE FORK
1.5MI N PALMER, Christian, IL
Built 2005 Load: 32.4 t ADT: 100
TR 235
FairOver: BEAR CREEK
1MI N PALMER, Christian, IL
Built 2005 Load: 32.4 t ADT: 100
FAS 639 (CH 5)
FairOver: MILLER BRANCH
2 M S PALMER, Christian, IL
Built 2006 Load: 32.4 t ADT: 200
TR 196A
FairOver: S. FORK SANGAMON R
3.5MI SW ROSAMOND, Christian, IL
Built 2005 Load: 32.4 t ADT: 100
TR 50
FairOver: LONG GROVE CREEK
.8 MI NW MOWEAQUA, Christian, IL
Built 2009 Load: 32.4 t ADT: 175
TR 343
FairOver: BEAMER BRANCH
7Mi SE Morrisonville, Christian, IL
Built 2014 Load: 32.4 t ADT: 25
TR 151
FairOver: BRUSHY BRANCH
3.5 M SE STONINGTON, Christian, IL
Built 2008 Load: 32.4 t ADT: 175
TR 186A
FairOver: S FK SANGAMON RVR
5 M SW ROSEMOND, Christian, IL
Built 2009 Load: 32.4 t ADT: 10
TR 50
FairOver: LONG GROVE TRIB
.75 M N MOWEQUA, Christian, IL
Built 2009 Load: 32.4 t ADT: 175
TR 57
FairOver: Buckhart Creek
4 MI NE of Edinburg, Christian, IL
Built 2013 Load: 32.4 t ADT: 35
TR 169
FairOver: BID GEORGE BR
3 M N ASSUMPTION, Christian, IL
Built 2009 Load: 32.4 t ADT: 100
TR 206
FairOver: TRIB LOCUST CREEK
.5 M W OWANECO, Christian, IL
Built 2014 Load: 32.4 t ADT: 20
TR 307A
FairOver: STH FRK SANGAMON RV
7 M E Morrisonville, Christian, IL
Built 2013 Load: 32.4 t ADT: 20
TR 216
FairOver: BUCKHART CREEK
NW edge Stonington, Christian, IL
Built 2012 Load: 32.4 t ADT: 175
TR 245
FairOver: COTTONWOOD CREEK
0.51 mi E TR 196, Christian, IL
Built 2015 Load: 32.4 t ADT: 20
TR 151A
FairOver: Big George Branch
0.03 mi E TR 296, Christian, IL
Built 2015 Load: 32.4 t ADT: 225
TR 289
FairOver: Locust Creek
0.08 mi W TR 228, Christian, IL
Built 2015 Load: 32.4 t ADT: 50
CHEROKEE ST
FairOver: DIEHL CREEK
MORRISONVILLE, Christian, IL
Built 1997 Load: 32.4 t ADT: 225
US 40(FAS 1707)
FairOver: LITTLE CREEK
1.6 MI E MARTNSVILLE, Clark, IL
Built 1954 Load: 32.4 t ADT: 2,050
US 40(FAS 1707)
FairOver: HURRICANE CREEK
W OF CLARK CENTER, Clark, IL
Built 1955 Load: 32.4 t ADT: 2,350
FAI 70
FairOver: DITCH
1.5 MI NW MARSHALL, Clark, IL
Built 1971 Load: 32.4 t ADT: 23,400
TR 395
FairOver: N FORK RACCOON CREEK
2.8 MI S WEST UNION, Clark, IL
Built 1979 Load: 32.4 t ADT: 100
FAS 696(TR 142)
FairOver: WILLOW CREEK
3 MI SE MARTINSVILLE, Clark, IL
Built 1979 Load: 32.4 t ADT: 350
TR 339
FairOver: MOUNT BRANCH
2.0 MI NW MORIAH, Clark, IL
Built 1979 Load: 32.4 t ADT: 200
TR 207
FairOver: STREAM
6 MI ESE MARSHALL, Clark, IL
Built 1979 Load: 32.4 t ADT: 125
CH 20
FairOver: MUDD CREEK
1 MI NE DENNISON, Clark, IL
Built 1909 Load: 32.4 t ADT: 200
TR 251
FairOver: PARTRIDGE CREEK
1.5 MI E ERNST, Clark, IL
Built 1982 Load: 32.4 t ADT: 50
FAS 1658(CH 16)
FairOver: WILLOW CREEK
2.5 MI W ORANGE, Clark, IL
Built 1983 Load: 32.4 t ADT: 150
TR 325
FairOver: N FORK EMBARRASS R
5 MI SE OF CASEY, Clark, IL
Built 1985 Load: 32.4 t ADT: 100
TR 234
FairOver: MILL CREEK
5.5 MI S MARSHALL, Clark, IL
Built 1984 Load: 32.4 t ADT: 100
TR 101
FairOver: TRIB BIG CREEK
3 MI NE MARSHALL, Clark, IL
Built 1987 Load: 32.4 t ADT: 125
TR 46
FairOver: QUARRY BRANCH
2 MI SE OF CASEY, Clark, IL
Built 1996 Load: 32.4 t ADT: 300
FAP-327 (US-50)
FairOver: STREAM
.5 MI W RACCOON CK, Clay, IL
Built 1970 Load: 32.4 t ADT: 2,800
TR-84
FairOver: BRANCH BUSH CREEK
1.5 MI SE XENIA, Clay, IL
Built 1978 Load: 32.4 t ADT: 50
TR-333
FairOver: CONNERS BRANCH
3.5 MI NW XENIA, Clay, IL
Built 1978 Load: 32.4 t ADT: 50
TR-235
FairOver: GROVE CREEK
1.5 MI S LOUISVILLE, Clay, IL
Built 1978 Load: 32.4 t ADT: 250
TR-355
FairOver: ELM CREEK
2.5 MI SE FLORA, Clay, IL
Built 1983 Load: 32.4 t ADT: 50
TR-144
FairOver: CROOKED CREEK
3.5 MI NW LOUISVILLE, Clay, IL
Built 1983 Load: 32.4 t ADT: 100
TR-226
FairOver: ELM CREEK
1 MI NE FLORA, Clay, IL
Built 1995 Load: 32.4 t ADT: 125
TR-281
FairOver: BUCK CREEK
4 MI NW FLORA, Clay, IL
Built 1987 Load: 32.4 t ADT: 100
TR-157
FairOver: LITTLE PANTHER CREEK
3 MI NE LOUISVILLE, Clay, IL
Built 1989 Load: 32.4 t ADT: 100
FAS 2798-CH 10
FairOver: BUCK CREEK
2 MI N FLORA, Clay, IL
Built 2004 Load: 32.4 t ADT: 250
OLD US 50
FairOver: SHOAL CREEK
1.7 M E BREESE, Clinton, IL
Built 1923 Load: 32.4 t ADT: 4,350
ILL 160
FairOver: TRIB TO SUGAR CREEK
0.36 MI S MAD CO LN, Clinton, IL
Built 1938 Load: 32.4 t ADT: 5,200
Showing 7,501-7,550 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.