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
FAI-70 WB
UnknownOver: FAP-828
MONTROSE INT, Effingham, IL
Built 1960 ADT: 3,300
FAI-70/RMP-1285
UnknownOver: FAI-57 SB
TRI-LEVEL SW EFFINGH, Effingham, IL
Built 1960 ADT: 19,900
FAI-70/RMP-1935
UnknownOver: FAI-57 NB
TRI-LEVEL NE EFFINGH, Effingham, IL
Built 1960 ADT: 18,900
FAP-174 (ILL-32/33
UnknownOver: FAI-70
ILL-32/33 INT, EFF, Effingham, IL
Built 1959 ADT: 39,200
IC RR
UnknownOver: FAS 2701(ILL-37)
2.5 MI SW WATSON, Effingham, IL
Built 1928 ADT: 1,900
FAS 2701
UnknownOver: FAI-57
WATSON INT, Effingham, IL
Built 1962 ADT: 19,900
FAS-2715 (CH-12)
UnknownOver: FAI-57
WCL MASON, Effingham, IL
Built 1969 ADT: 18,500
FAS-1710(FUNKHSR R
UnknownOver: FAI-70
7.7 MI E ALTAMNT INT, Effingham, IL
Built 1961 ADT: 23,700
TR-21
UnknownOver: FAI-57
2 MI S SHELBY CO LN, Effingham, IL
Built 1963 ADT: 18,900
CH-11
UnknownOver: FAI-70
5.0 MI E US-45 INT, Effingham, IL
Built 1960 ADT: 25,800
CH-13
UnknownOver: FAI-70
6.5 MI E US-45 INT, Effingham, IL
Built 1960 ADT: 25,800
FAS 1724
UnknownOver: FAI-57
4 MI S SW TRI-LEVEL, Effingham, IL
Built 1962 ADT: 19,900
TR-2
UnknownOver: FAI-70
EFF-FAY CO LINE, Effingham, IL
Built 1962 ADT: 23,900
TR-14
UnknownOver: FAI-70
1 MI W ALTAMONT INT, Effingham, IL
Built 1962 ADT: 23,900
TR-31
UnknownOver: FAI-57
3 MI S SHELBY CO LN, Effingham, IL
Built 1963 ADT: 18,900
TR-40
UnknownOver: FAI-70
1.6 MI E ALTAMNT INT, Effingham, IL
Built 1961 ADT: 23,700
TR-62
UnknownOver: FAI-70
3.9 MI E ALTAMNT INT, Effingham, IL
Built 1961 ADT: 23,700
TR-78
UnknownOver: FAI-70
5.5 MI E ALTAMNT INT, Effingham, IL
Built 1961 ADT: 23,700
TR-157
UnknownOver: FAI-57
2 MI S SW TRI-LEVEL, Effingham, IL
Built 1962 ADT: 19,900
TR-215
UnknownOver: FAI-57
5 MI S SW TRI-LEVEL, Effingham, IL
Built 1962 ADT: 19,900
TR-258
UnknownOver: FAI-70
2.1 MI E US-45 INT, Effingham, IL
Built 1960 ADT: 25,800
TR-264
UnknownOver: FAI-57
.6 MI S SHELBY CO LN, Effingham, IL
Built 1964 ADT: 18,900
TR-288
UnknownOver: FAI-70
3.6 MI E US-45 INT, Effingham, IL
Built 1960 ADT: 25,800
FAI-57 NB
UnknownOver: CH-27 & RR ABANDONED
1 MI N CLAY CO LINE, Effingham, IL
Built 1969 ADT: 175
FAI-57 SB
UnknownOver: CH-27 & RR ABANDONED
1 MI N CLAY CO LN, Effingham, IL
Built 1969 ADT: 175
FAI-57 NB
UnknownOver: FAS-2716
EDGEWOOD INT, Effingham, IL
Built 1969 ADT: 650
FAI-57 SB
UnknownOver: FAS-2716
EDGEWOOD INT, Effingham, IL
Built 1969 ADT: 650
FAS-1710 (CH-24)
UnknownOver: FAI-57
2.5 MI S WATSON INT, Effingham, IL
Built 1969 ADT: 18,500
CN RR
UnknownOver: US-40 (FAYETTE AVE)
IN EFFINGHAM, Effingham, IL
Built 1981 ADT: 19,100
I70WB/I57SB
UnknownOver: US 40 & CSXT RR
.6 MI S FAY AV INT, Effingham, IL
Built 2006 ADT: 4,550
I70EB/I57NB
UnknownOver: US 40 & CSXT RR
.6 MI S FAY AV INT, Effingham, IL
Built 2006 ADT: 4,550
FAU 8368 4TH ST
UnknownOver: FAI 70
.5 MI W US 45INT/EFF, Effingham, IL
Built 2007 ADT: 39,200
FAU 8385/FAP 95
UnknownOver: FAI 57/70
FAYETTE AVE INT, EFF, Effingham, IL
Built 2011 ADT: 40,200
FAI57 SB / 70 WB
UnknownOver: US 45 & CN RR
US 45 INTERCHANGE, Effingham, IL
Built 2015 ADT: 9,950
FAI 57 NB / 70 EB
UnknownOver: US 45 & CN RR
US 45 INTERCHANGE, Effingham, IL
Built 2015 ADT: 9,950
ICG RR
UnknownOver: TR-243
2 MI S WATSON, Effingham, IL
Built 1900 ADT: 75
FAP 328 (US-45)
UnknownOver: CSXT RR
BANKER ST - EFFINGHM, Effingham, IL
Built 1996 ADT: 200
FAU 8361(RANEY ST)
UnknownOver: FAU 8357,#6801,CSXT
EFFINGHAM, Effingham, IL
Built 2001 ADT: 3,950
PEDESTRIAN/BIKEWAY
UnknownOver: FAP 95/FAYETTE AVE
BETWEEN MAPLE/BK ST, Effingham, IL
Built 1999 ADT: 19,100
PEDESTRIAN BRIDGE
UnknownOver: FAI 70
KELLER DR INTERCH, Effingham, IL
Built 2006 ADT: 39,200
TREC BIKE/PED PATH
UnknownOver: FAI 57/70
N FAYETTE AVE, Effingham, IL
Built 2014 ADT: 40,200
CONRAIL RR
UnknownOver: SBI-128 (ILL-128)
.5 MI N US-40, Effingham, IL
Built 1936 ADT: 1,200
UNION PACIFIC RR
UnknownOver: SBI-128 (ILL 128)
.5 MI N US-40, Effingham, IL
Built 1936 ADT: 1,200
C&EI RR
UnknownOver: TR-30
.3 MI S ILL 33, Effingham, IL
Built 1976 ADT: 200
FAI-70 EB
UnknownOver: ILL-185
1 MI W VANDALIA INT, Fayette, IL
Built 1965 ADT: 4,900
FAI-70 WB
UnknownOver: ILL-185
1 MI W VANDALIA INT, Fayette, IL
Built 1965 ADT: 4,900
FAI-70 EB
UnknownOver: FR-1187/CAMP CREEK
1.75 MI E VANDALI IN, Fayette, IL
Built 1948 ADT: 25
FAI-70 WB
UnknownOver: FR-1187/CAMP CREEK
1.75 MI E VANDALI IN, Fayette, IL
Built 1964 ADT: 25
FAP-322 (US-51)
UnknownOver: FAI-70
US-51 VANDALIA INT, Fayette, IL
Built 1964 ADT: 22,700
FA 752 (US-40)
UnknownOver: FAI-70
BROWNSTOWN INT, Fayette, IL
Built 1962 ADT: 23,800
Showing 1,801-1,850 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.