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
I-57
FairOver: CREEK
MP 104, Jefferson, IL
Built 1900 Load: 79.7 t ADT: 25,000
FAI 39,US 51
FairOver: STREAM
1.5 MI S OF US 34, LaSalle, IL
Built 1978 Load: 79.7 t ADT: 18,700
HUNTER ROAD (FAS 3
FairOver: BR OF S KINNIKINNICK
0.2 MI E OF CO LINE, Boone, IL
Built 1975 Load: 80.0 t ADT: 2,150
TR 123 BRANDT RD
FairOver: TR1B TO SILVER CREEK
2 MI NW OF ALHAMBRA, Madison, IL
Built 1981 Load: 80.7 t ADT: 75
TR-58
FairOver: VILLAGE CREEK
3 MI NW ALBION, Edwards, IL
Built 1909 Load: 81.0 t ADT: 50
ILL 106
FairOver: Trib to Sandy Creek
0.78 S OF CO LINE, Greene, IL
Built 1938 Load: 81.0 t ADT: 1,350
FAS 499(CH 23)
FairOver: STREAM
1.5 MI E GEORGETOWN, Vermilion, IL
Built 1948 Load: 81.0 t ADT: 1,650
ILL 94 & 116
FairOver: ELLISON CREEK
1.8 MI N STRONGHURST, Henderson, IL
Built 2011 Load: 81.6 t ADT: 1,550
TR 3
FairOver: FORKED CR
3MI NE DESELM, Kankakee, IL
Built 1980 Load: 81.6 t ADT: 50
Marine Road-FAS 77
FairOver: SILVER CREEK OVRFLW
1.2mi N. of US 40, Madison, IL
Built 1923 Load: 82.3 t ADT: 800
I-88
FairOver: RICKELSON CREEK
0.3 MI SW OGLE CO LN, Lee, IL
Built 1972 Load: 82.6 t ADT: 16,100
ILL 143
FairOver: LITTLE MOONEY CK
1M W I-55, Madison, IL
Built 1933 Load: 82.6 t ADT: 5,450
FAS 1591(CH 11)
FairOver: BRANCH HONEY CREEK
S.W. EDGE PITTSFIELD, Pike, IL
Built 1980 Load: 82.6 t ADT: 1,000
I- 80
FairOver: CREEK
0.3 M W OF IL-43, Will, IL
Built 1967 Load: 82.6 t ADT: 96,800
CH 28
FairOver: STREAM
S EDGE OF LOXA, Coles, IL
Built 1973 Load: 82.9 t ADT: 2,600
I-57
FairOver: Dranage Ditch
5.10 M. S. of IL 116, Iroquois, IL
Built 2015 Load: 83.9 t ADT: 18,100
I-90
FairOver: Higgins Cr. Trib A
.2 Mi W. Elmhurst Rd, Cook, IL
Built 2015 Load: 84.6 t ADT: 147,300
LILY CACHE LN
FairOver: LILY CACHE CREEK
1.3 M E NAPERVILE RD, Will, IL
Built 1972 Load: 84.9 t ADT: 5,850
FAI-70 EB
FairOver: HURRICANE CK OVFL 1
2.54 MI E BOND CO LN, Fayette, IL
Built 1965 Load: 85.2 t ADT: 12,900
IL 120
FairOver: BOONE CREEK
N LIMITS OF MCHENRY, McHenry, IL
Built 1973 Load: 85.2 t ADT: 25,900
FAI-70 WB
FairOver: HURRICANE CK OVFL 1
2.54 MI E BOND CO LN, Fayette, IL
Built 1965 Load: 85.5 t ADT: 12,900
US 12,20,45 MANNHE
FairOver: SALT CREEK
0.1 M S CERMAK RD, Cook, IL
Built 1958 Load: 85.9 t ADT: 23,500
US 34 FAP 613
FairOver: E. FORK SPOON RIVER
0.6 MI NE NEPONSET, Bureau, IL
Built 1974 Load: 86.2 t ADT: 1,650
ILL 78
FairOver: BNSF RR
2 MI N ARGO FAY RD, Carroll, IL
Built 1949 Load: 86.2 t ADT: 1,550
Spring Creek Road
FairOver: Spring Creek
.25M W of Ridge Rd., McHenry, IL
Built 2012 Load: 87.2 t ADT: 625
CONCORDIA CH RD/CH
FairOver: BRANCH PRARE DU PONT
2.3MI E ILL RTE 163, St. Clair, IL
Built 1967 Load: 87.2 t ADT: 800
IL 17/FAS 310
FairOver: PIKE CREEK
2.1 M SE OF JCT 1&17, Kankakee, IL
Built 2001 Load: 87.5 t ADT: 4,900
I-70
FairOver: CROOKED CREEK
MP 111.2, Cumberland, IL
Built 1969 Load: 87.8 t ADT: 23,100
1st Street
FairOver: COAL CREEK
IN COAL VALLEY ON 29, Rock Island, IL
Built 1964 Load: 88.1 t ADT: 1,850
LEROY CENTER RD
FairOver: BEAVER CREEK
3.0 MI NW CAPRON, Boone, IL
Built 1968 Load: 88.8 t ADT: 10
167TH STREET
FairOver: 76TH AVE DITCH
.05M E OF 76TH AVE, Cook, IL
Built 1975 Load: 88.8 t ADT: 6,550
FAI 57
FairOver: STREAM
1.9 MI N OF ILL 9, Ford, IL
Built 1968 Load: 88.8 t ADT: 17,600
I-74
FairOver: STREAM
.1M N KNOX CO LINE, Knox, IL
Built 1967 Load: 88.8 t ADT: 15,000
US 34
FairOver: CEDAR CREEK
0.7M E OF COUNTY LN, Knox, IL
Built 1986 Load: 88.8 t ADT: 8,950
TR 62
FairOver: LAKE FORK CRK
5.9 MI S LITCHFIELD, Montgomery, IL
Built 1988 Load: 88.8 t ADT: 50
COTTONWOOD ROAD
FairOver: WARSAW RUN
SECOR,NE-28-ROSEF'LD, Peoria, IL
Built 1961 Load: 88.8 t ADT: 600
TR 632
FairOver: BANSTON CREEK
2 MI E CRAB ORCHARD, Williamson, IL
Built 1900 Load: 88.8 t ADT: 325
MERIDIAN RD
FairOver: S. BR. KENT CREEK
1.2 MI S OF 20 BR, Winnebago, IL
Built 1964 Load: 88.8 t ADT: 4,150
BRICK SCHOOL RD
FairOver: BEAVER RUN
0.7 MI E BARNINGHAM, Winnebago, IL
Built 1971 Load: 88.8 t ADT: 150
WHITE SCHOOL RD
FairOver: UNNAMED CREEK
0.4 MI N MCCURRY RD, Winnebago, IL
Built 1964 Load: 88.8 t ADT: 2,650
ALPINE ROAD
FairOver: DRAINAGE DITCH
0.1 M N WINDSOR, Winnebago, IL
Built 1972 Load: 88.8 t ADT: 16,800
SOUTH MAIN ST
FairOver: KENT CREEK
0.5 MI S OF STATE ST, Winnebago, IL
Built 1905 Load: 88.8 t ADT: 8,650
FAI 172
FairOver: AUSTIN CREEK
3.0MI N I-172/IL 57, Adams, IL
Built 1982 Load: 89.1 t ADT: 9,750
FAI 172
FairOver: BRANCH OF MILL CREEK
1.2MI N I172/IL96, Adams, IL
Built 1975 Load: 89.1 t ADT: 7,400
I-172
FairOver: Dry Branch
0.70 mi S US 24, Adams, IL
Built 1975 Load: 89.1 t ADT: 7,350
TR 113
FairOver: ROCKY CREEK
1 MI NW COOPERSTOWN, Brown, IL
Built 1900 Load: 89.1 t ADT: 100
FAS 1582
FairOver: LITTLE MISSOURI CR
2.5 N TIMEWELL, Brown, IL
Built 1959 Load: 89.1 t ADT: 150
FAP 804(US 45)
FairOver: STREAM
NEIL & WINDSOR CHAMP, Champaign, IL
Built 1989 Load: 89.1 t ADT: 19,500
IL 104
FairOver: LK KINCAID SPILLWAY
2.9M E CH5- KINCAID, Christian, IL
Built 1931 Load: 89.1 t ADT: 3,600
I-70
FairOver: E MILL CREEK TRIB
MP 143.3, Clark, IL
Built 1969 Load: 89.1 t ADT: 23,400
Showing 13,951-14,000 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.