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-55 NB
UnknownOver: RAMPS & CH36
FUNKS GROVE SEC 16, McLean, IL
Built 1975 ADT: 75
FAU 6434/CH 34
UnknownOver: I-55
EAST OF SHIRLEY, McLean, IL
Built 1976 ADT: 21,300
FAU 6431/CH 29
UnknownOver: I-55
.5 MI N OF TOWANDA, McLean, IL
Built 1974 ADT: 23,800
FAS 472 (CH 12)
UnknownOver: UPRR & I-55 & Old Rte 66
3 MI NE OF TOWANDA, McLean, IL
Built 1978 ADT: 23,800
TR 83
UnknownOver: I-55
2 MI SW OF LEXINGTON, McLean, IL
Built 1974 ADT: 23,800
FAS 473 CH 8
UnknownOver: I-55
1 MI W OF LEXINGTON, McLean, IL
Built 1973 ADT: 23,400
FAS 356 CH 23
UnknownOver: I-55
1 MI NW OF LEXINGTON, McLean, IL
Built 1973 ADT: 23,400
TR 43
UnknownOver: UPRR & I-55 & Old Rte 66
2 MI N OF LEXINGTON, McLean, IL
Built 1978 ADT: 2,050
TR 23
UnknownOver: I-55
1 MI S OF CHENOA, McLean, IL
Built 1972 ADT: 23,400
Union Pacific RR
UnknownOver: US 51 SB
KINGSLEY ST & ICG, McLean, IL
Built 1978 ADT: 9,700
Union Pacific RR
UnknownOver: US 51 NB
MAIN ST UNDER ICG RR, McLean, IL
Built 1979 ADT: 11,300
FAP 412 US 51(SB)
UnknownOver: US 136
0.51 MI W OF OLD 51, McLean, IL
Built 1986 ADT: 6,550
FAP 412 US 51(NB)
UnknownOver: US 136
0.5 MI W OF OLD 51, McLean, IL
Built 1986 ADT: 6,550
US 150/FAP 676& SP
UnknownOver: NS Railway & White Oak R
2.9 MI N OF ILL 9, McLean, IL
Built 1987 ADT: 2,750
CH 8 & FAS 473 CH
UnknownOver: I-39/US 51
1 MI S WOODFORD CO., McLean, IL
Built 1989 ADT: 18,700
I-39/US 51 SB
UnknownOver: FAS 472 CH 12
4.65 MI N OF I-55, McLean, IL
Built 1989 ADT: 1,750
I-39/US 51 NB
UnknownOver: FAS 472 CH 12
4.66 MI N OF I-55, McLean, IL
Built 1989 ADT: 1,750
TR 157A
UnknownOver: I-39/US 51 SUBSTA RD
2.5 MI N OF I-55, McLean, IL
Built 1989 ADT: 17,300
TR#181 (BUSN. 51)
UnknownOver: I-39/US 51
0.22 MI W OF OLD 51, McLean, IL
Built 1988 ADT: 17,300
I-39 RAMP 816 SB
UnknownOver: I-55
0.35 MI W OF BUS.51, McLean, IL
Built 1988 ADT: 31,500
I-39 NB
UnknownOver: I-55 & CD#2284/2287
0.29 MI W OF OLD 51, McLean, IL
Built 1989 ADT: 31,500
I-39 SB
UnknownOver: NORTHTOWN RD TR 201B
O.53 MI N OF I-55, McLean, IL
Built 1988 ADT: 850
I-39 NB
UnknownOver: NORTHTOWN RD TR 201B
0.32 MI W OF OLD 51, McLean, IL
Built 1988 ADT: 850
Raab Rd (FAU 6346)
UnknownOver: I-55 & I-74
3 MI N OF ILL 9, McLean, IL
Built 1990 ADT: 37,700
FAU6383/6371BEICH
UnknownOver: I-55/I-74
2.5 MI. S I-55& IL 9, McLean, IL
Built 2003 ADT: 43,100
I-55/I-74 NB
UnknownOver: College Ave(FAU6352)
3.5 MI SW OF RT 51, McLean, IL
Built 1999 ADT: 5,600
I-55/I-74 SB
UnknownOver: College Ave(FAU6352)
3.5 M SW OF RT 51, McLean, IL
Built 1999 ADT: 5,600
I-55 NB
UnknownOver: FAU 6405/LINDEN
0.7 MI E OF US 51, McLean, IL
Built 2009 ADT: 5,100
I-55 SB
UnknownOver: FAU 6405/LINDEN
0.7 MI E OF US 51, McLean, IL
Built 2009 ADT: 5,100
I-55 NB
UnknownOver: FAP 704
JCT. FAI55 & VET PKW, McLean, IL
Built 2004 ADT: 12,800
I-55 SB
UnknownOver: FAP 704
NE CORNER NORMAL, McLean, IL
Built 2004 ADT: 12,800
I-55 NBL
UnknownOver: I-55 BUSN LOOP
NBL OVR 55 BUSN LOOP, McLean, IL
Built 2010 ADT: 4,800
I-55 NBL
UnknownOver: EB I-74/SW BLOOM.
JCT I-55 & I-74, McLean, IL
Built 2010 ADT: 21,800
I-55 BUSN LOOP NB
UnknownOver: I-74/SW BLOOMINGTON
55 BUSN LP OV I-74, McLean, IL
Built 2013 ADT: 21,800
I-55 BUSN LOOP SB
UnknownOver: I-74/SW BLOOMINGTON
55 BUSN LP OV I-74, McLean, IL
Built 2013 ADT: 21,800
I-55 BUSN LOOP NB
UnknownOver: I-74/SW BLOOMINGTON
55 BUSN LP OV I-74, McLean, IL
Built 2013 ADT: 21,800
I-55 BUSN LOOP SB
UnknownOver: I-74/SW BLOOMINGTON
55 BUSN LP OV I-74, McLean, IL
Built 2013 ADT: 21,800
SOUTHERN PACIFIC R
UnknownOver: DIVISION ST
150 FT W OF LEE ST, McLean, IL
Built 1900 ADT: 1,025
SOUTHERN PACIFIC R
UnknownOver: MARKET ST FAU6359
100 FT W OF MORRIS, McLean, IL
Built 1889 ADT: 8,650
N&W RR
UnknownOver: STILLWELL ST
0.8 MI E 150 & 55, McLean, IL
Built 1900 ADT: 50
SOUTHERN PACIFIC R
UnknownOver: OLIVE ST
1.0 MI SW 9 & 51, McLean, IL
Built 1900 ADT: 700
ABANDONED RR
UnknownOver: WASHNGTN ST FAU 6360
0.4 MI SSE 9 & 150, McLean, IL
Built 1900 ADT: 8,700
SPCSL RR
UnknownOver: VERNON AVE
VERNON E OF BEUFORT, McLean, IL
Built 1972 ADT: 6,050
SPCSL RR
UnknownOver: STREET
S OF BEAUFORT, McLean, IL
Built 1900 ADT: 175
SPCSL RR
UnknownOver: FAU 6340/CH 32
1 MI SW FAI 74-55, McLean, IL
Built 1900 ADT: 850
C&NW RR
UnknownOver: TR 75
3.7 M SE GREENVIEW, Menard, IL
Built 1912 ADT: 25
FOOT TRAIL
UnknownOver: OLD IL 97
LINC NEW SALEM ST PK, Menard, IL
Built 1966 ADT: 4,200
Levee Road / MS 56
UnknownOver: FAI 255
1 mi E OF J.B.BRIDGE, Monroe, IL
Built 1984 ADT: 51,700
IL3NB-255WB Ramp A
UnknownOver: I 255 NB - Ramp D
NORTH OF COLUMBIA, Monroe, IL
Built 1982 ADT: 51,700
I 255 NB Ramp D
UnknownOver: 255 SB->IL3 SB Rmp B
NORTH OF COLUMBIA, Monroe, IL
Built 1982 ADT: 35,500
Showing 2,901-2,950 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.