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

Total Bridges

27,743

Public highway bridges in Illinois

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

Illinois48.2%42.6%9.2%GoodFairPoor
Bridge inventory deck-condition mix - Illinois (FHWA NBI)

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
Structure
Progressive
Burden @ $100K
$78

NE

Nebraska

7.73% top marginal rate
Structure
Progressive
Burden @ $100K
$15,571
Selected

IL

Illinois

7.88% top marginal rate
Structure
Progressive
Burden @ $100K
$27,743

MA

Massachusetts

7.96% top marginal rate
Structure
Progressive
Burden @ $100K
$5,314

MO

Missouri

8.53% top marginal rate
Structure
Progressive
Burden @ $100K
$24,654

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

Poor

Over: DRAINAGE CANAL

2.2 MI E MEYER, Adams, IL

Built 1980 Load: 0.6 t ADT: 200

CH 15

Poor

Over: E FK MAZONRIVER

0.05 MI W CH 16, Grundy, IL

Built 1977 Load: 1.0 t ADT: 1,400

MOOSE RD - TR 240

Poor

Over: WILSON CREEK

NE-35-T3NR2E, Fulton, IL

Built 1935 Load: 1.3 t ADT: 10

TR 10-B

Poor

Over: KING CREEK

W EDGE OF MINERAL, Bureau, IL

Built 1899 Load: 1.6 t ADT: 10

TR-6

Poor

Over: DRAINAGE DITCH

3.5 MI NE DIETERICH, Effingham, IL

Built 1909 Load: 1.6 t ADT: 25

TR208K(TWIN BRIDGE

Poor

Over: BIG CREEK

NE EDGE MT ZION, Macon, IL

Built 1967 Load: 1.9 t ADT: 375

All Bridges in Illinois

FAS 642C(CH 18)

Good

Over: GRASSY WATERWAY

1.5 M NE OF LANDFILL, Coles, IL

Built 2011 Load: 32.4 t ADT: 2,450

DOUGLAS ST(FAU 764

Good

Over: STREAM

CHARLESTON SW SIDE, Coles, IL

Built 1984 Load: 32.4 t ADT: 750

FAU 7641("E" ST)

Good

Over: TOWN BRANCH CREEK

CHARLESTON-MADISON, Coles, IL

Built 1994 Load: 32.4 t ADT: 4,000

REYNOLDS DR(MS 854

Good

Over: TOWN BRANCH CREEK

W EDGE CHARLESTON, Coles, IL

Built 1992 Load: 32.4 t ADT: 500

FAU 7643(4TH ST)

Good

Over: TOWN BRANCH

CHARLESTON, Coles, IL

Built 2000 Load: 32.4 t ADT: 3,050

FAU 7698/9TH ST

Good

Over: KICKAPOO CREK

SO 9TH ST MATTOON, Coles, IL

Built 2008 Load: 32.4 t ADT: 4,100

FAU 7622-JACKSON S

Good

Over: TOWN BRANCH CREEK

E OF DIVISION AVE, Coles, IL

Built 2007 Load: 32.4 t ADT: 300

I- 80 EB TO I-294

Good

Over: DITCH

NO OF I80 ADJ 2752, Cook, IL

Built 1959 Load: 32.4 t ADT: 500

US 30

Good

Over: BIKE PATH & PIPELINE

US30 1200' N of Sauk, Cook, IL

Built 2015 Load: 32.4 t ADT: 26,600

HICKS RD

Good

Over: SALT CREEK

1.1 M S IL 68, Cook, IL

Built 1900 Load: 32.4 t ADT: 15,400

RIVER RD

Good

Over: WILLOW CR

0.1 M S ILL 72 P9, Cook, IL

Built 1929 Load: 32.4 t ADT: 14,300

WOLF ROAD

Good

Over: Buffalo Creek

1.2M S IL-68, Cook, IL

Built 1993 Load: 32.4 t ADT: 9,200

KEDZIE AVE

Good

Over: STONEY CREEK

0.05 M S 127TH ST, Cook, IL

Built 1969 Load: 32.4 t ADT: 14,700

IL 83 (CAL SAG RD

Good

Over: MILL CREEK

0.2 M E US 45, Cook, IL

Built 2012 Load: 32.4 t ADT: 12,000

147TH ST

Good

Over: BACA RIO DITCH

1.7 MI W. ILL. 83, Cook, IL

Built 2007 Load: 32.4 t ADT: 9,000

PAW PAW AVENUE

Good

Over: MARLEY'S CREEK

0.2 M N 167TH ST, Cook, IL

Built 1993 Load: 32.4 t ADT: 125

STUART AVENUE

Good

Over: MARLEY'S CREEK

0.25 M N 167TH ST, Cook, IL

Built 1997 Load: 32.4 t ADT: 400

FIRE STA. 3 Dr.

Good

Over: LANSING DITCH

0.16 MI N.Glenwood L, Cook, IL

Built 2010 Load: 32.4 t ADT: 100

FAU-2723 (POTTER R

Good

Over: PRAIRIE CREEK

.15 M N DEMPSTER ST, Cook, IL

Built 2009 Load: 32.4 t ADT: 6,700

WALTERS AVE

Good

Over: N BR CHICAGO RIVER

0.5 M W ILL 43 P14, Cook, IL

Built 1926 Load: 32.4 t ADT: 1,800

171ST ST

Good

Over: MIDLOTHIAN CREEK

0.2 M W OAK PARK P3, Cook, IL

Built 1900 Load: 32.4 t ADT: 5,250

Weiland Road

Good

Over: Buffalo Creek

157 Ft W IL Rt 83, Cook, IL

Built 2021 Load: 32.4 t ADT: 6,650

BUFFALO GROVE RD

Good

Over: BUFFALO CR

1 M W DUNDEE RD P25, Cook, IL

Built 1977 Load: 32.4 t ADT: 15,400

QUENTIN RDPALATNE

Good

Over: Salt Creek

1.8 MI.S DUNDEE RD., Cook, IL

Built 1985 Load: 32.4 t ADT: 12,000

SAUK TRAIL

Good

Over: DEER CREEK

0.25M W COTTAGE GROV, Cook, IL

Built 1989 Load: 32.4 t ADT: 8,900

WEST LAKE AV

Good

Over: DESPLAINES R SLOUGH

.15M E.OFUS45, Cook, IL

Built 2001 Load: 32.4 t ADT: 16,000

WEST LAKE AV

Good

Over: DESPLAINES RIVER

.2M E. OF US45, Cook, IL

Built 2001 Load: 32.4 t ADT: 16,000

GRANT RD

Good

Over: C.&N.W. RR

0.4M N. VOLTZ RD, Cook, IL

Built 1994 Load: 32.4 t ADT: 400

VOLTZ RD

Good

Over: C&NW RR

0.2 M E IL-43, Cook, IL

Built 1998 Load: 32.4 t ADT: 1,700

SAUK TRAIL RD

Good

Over: HICKORY CREEK

.20M W CENTRAL AV, Cook, IL

Built 2001 Load: 32.4 t ADT: 5,900

179TH ST

Good

Over: MARLEY CREEK

.55M W OF WOLF RD, Cook, IL

Built 2002 Load: 32.4 t ADT: 8,100

OTIS RD

Good

Over: FLINT CREEK

0.8 MI E BRINKER RD, Cook, IL

Built 2000 Load: 32.4 t ADT: 525

VOLLMER RD

Good

Over: TRIB FLOSSMOOR DITCH

.35M E IL43, Cook, IL

Built 2003 Load: 32.4 t ADT: 14,100

GLENWOOD-LANSING R

Good

Over: LANSING DRAIN DITCH

1M E TORRENCE AV, Cook, IL

Built 2002 Load: 32.4 t ADT: 14,100

SAUK TRAIL

Good

Over: THIRD CREEK

.44M W. OF STATE ST., Cook, IL

Built 1997 Load: 32.4 t ADT: 17,800

MS-1170

Good

Over: W Br DuPage River

S. OF IL RTE 19, Cook, IL

Built 2013 Load: 32.4 t ADT: 650

IRVING PARK ROAD

Good

Over: N. BR. CHICAGO RIVER

4000 N. AND 2650 W., Cook, IL

Built 2020 Load: 32.4 t ADT: 29,000

CLARK ST

Good

Over: LAND

100W.& 1100S., Cook, IL

Built 1921 Load: 32.4 t ADT: 3,950

HALSTED ST N CULVE

Good

Over: FUTURE PEDESTRIAN WA

1047 N. Halsted St., Cook, IL

Built 2011 Load: 32.4 t ADT: 12,050

HALSTED ST S CULVE

Good

Over: FUTURE PEDESTRIAN WA

1047 N. Halsted St., Cook, IL

Built 2011 Load: 32.4 t ADT: 12,050

CHESTNUT AVENUE

Good

Over: W F N BR CHICAGO RIV

0.5 M NE LAKE P14, Cook, IL

Built 2016 Load: 32.4 t ADT: 10,700

WATERSIDE DRIVE

Good

Over: PARKING GARAGE

300N & 400E TO 440E, Cook, IL

Built 2007 Load: 32.4 t ADT: 1,500

SOLIDARITY DRIVE E

Good

Over: PEDESTRIAN UNDERPASS

1250 S. & 700 E., Cook, IL

Built 2008 Load: 32.4 t ADT: 7,300

SOLIDARITY DRIVE W

Good

Over: PEDESTRIAN UNDERPASS

1250 S. & 700 E., Cook, IL

Built 2008 Load: 32.4 t ADT: 7,300

ADAMS STREET

Good

Over: UNION STATION TRKS

CHGO RIV TO CANAL ST, Cook, IL

Built 1924 Load: 32.4 t ADT: 6,600

JACKSON BOULEVARD

Good

Over: UNION STATION TRACKS

CHGO RVR TO CANAL ST, Cook, IL

Built 1923 Load: 32.4 t ADT: 4,550

Springfield Avenue

Good

Over: Stoney Creek

0.06 MI S 123RD ST, Cook, IL

Built 1972 Load: 32.4 t ADT: 1,000

S CANAL ST

Good

Over: BNSF RR

1600 S & 500 W, Cook, IL

Built 1930 Load: 32.4 t ADT: 15,800

HASSEL RD

Good

Over: POPLAR CREEK

0.3 M E BARGTN RDP2, Cook, IL

Built 1970 Load: 32.4 t ADT: 7,050

HASSEL ROAD

Good

Over: POPLAR CREEK

1.3 M E BRNGTN RDP22, Cook, IL

Built 2013 Load: 32.4 t ADT: 3,500

Showing 16,101-16,150 of 27,743 bridges

Related

All states → | National rankings → | Understanding conditions → | Retired SD term explained →
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.