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

SLANT RD

Poor

Over: BIG BUREAU CREEK

4 MI SE OF SUBLETTE, Lee, IL

Built 1939 Load: 20.7 t

LEE RD/ TR 89

Poor

Over: SUGAR CK

3.0MI N AVISTON, Madison, IL

Built 1965 Load: 20.7 t ADT: 275

TR 38

Poor

Over: STRINGTOWN BRANCH

3.5 MI W LOVINGTON, Moultrie, IL

Built 1930 Load: 20.7 t ADT: 50

BLACK QUARTER TR 1

Poor

Over: SILVER CR

1.0 MI N ILL 13, St. Clair, IL

Built 1961 Load: 20.7 t ADT: 50

COUNTRY CLUB DR

Poor

Over: STREAM

SE-31-T25NR4W, Tazewell, IL

Built 1962 Load: 20.7 t ADT: 1,000

TR 238

Poor

Over: STREAM

2 MI S MAYVIEW, Champaign, IL

Built 1982 Load: 21.1 t ADT: 75

TR 65

Poor

Over: CREEK

2 MI NW EDINBURG, Christian, IL

Built 1900 Load: 21.1 t ADT: 50

VAN BUREN ST

Poor

Over: S BR CHICAGO RIVER

400 S & 361 W, Cook, IL

Built 1956 Load: 21.1 t ADT: 6,200

LSD-RAMP 300

Poor

Over: LAND

500E.& 200N., Cook, IL

Built 1986 Load: 21.1 t ADT: 98,000

BEECHER AVENUE

Poor

Over: W. BR. DUPAGE RIVER

0.25 M W WINFIELD RD, DuPage, IL

Built 1956 Load: 21.1 t ADT: 475

FAP-367 (Army TR R

Poor

Over: W BR DUPAGE RIVER

1.6 MI E IL 59, DuPage, IL

Built 1987 Load: 21.1 t ADT: 9,500

TR-107B REED RD

Poor

Over: JOHNNY RUN

.02 MI E OLD MAZON R, Grundy, IL

Built 1940 Load: 21.1 t ADT: 275

TR 284 (OLD RT 1)

Poor

Over: BR SUGAR CREEK

5.01 M SW OF ILL 1, Iroquois, IL

Built 1930 Load: 21.1 t ADT: 50

TR 55B

Poor

Over: MARTINTON DCH NO 3

3 MI E MARTINTON, Iroquois, IL

Built 1927 Load: 21.1 t ADT: 125

SCHLAPP RD

Poor

Over: EAST AUX-SABLE CR

SCHLAPP & WALKER, Kendall, IL

Built 1967 Load: 21.1 t ADT: 1,000

TR 24

Poor

Over: MOLE CREEK

2410 N, 500 E, Livingston, IL

Built 1965 Load: 21.1 t ADT: 100

COUNTY HIGHWAY 11

Poor

Over: RED OAK DITCH

6 MI NE OF EASTON, Mason, IL

Built 1954 Load: 21.1 t ADT: 75

US 24/FAP 317

Poor

Over: INTERMIT STREAM

13.13 M E OF US 51, McLean, IL

Built 1959 Load: 21.1 t ADT: 2,650

JERSEY AVE FAU 635

Poor

Over: SUGAR CR

1.0 MI NW BUS55 & 9, McLean, IL

Built 1964 Load: 21.1 t ADT: 2,400

FAS-1858 (CH-12)

Poor

Over: Dennis Hollow

E CITY LIM VALMEYER, Monroe, IL

Built 1927 Load: 21.1 t ADT: 775

TR 3 (CR 2500N)

Poor

Over: Stringtown Branch

560E CR 2500N, Moultrie, IL

Built 1993 Load: 21.1 t ADT: 50

TR 6

Poor

Over: OPPOSSUM CREEK

3.3 MI NW OCONEE, Shelby, IL

Built 1909 Load: 21.1 t ADT: 125

TR 302

Poor

Over: GRAPE CREEK

CITY OF TILTON- SW, Vermilion, IL

Built 1972 Load: 21.1 t ADT: 300

FAS-2822

Poor

Over: EAGLE SLOUGH DRAINAG

5 MI SW FAIRFIELD, Wayne, IL

Built 1915 Load: 21.1 t ADT: 10

EAST ELEVENTH STRE

Poor

Over: IL MIS FEEDER CANAL

11TH ST .5 MI E IL40, Whiteside, IL

Built 1963 Load: 21.1 t ADT: 1,200

LAWRENCE ST

Poor

Over: FRACTION RUN

0.2 MI N BRUCE ST, Will, IL

Built 1964 Load: 21.1 t ADT: 1,400

CHERRY HILL RD

Poor

Over: JACKSON CR

0.7MI S.MANHATTAN RD, Will, IL

Built 1900 Load: 21.1 t ADT: 775

US 60 & 62

Poor

Over: MISSISSIPPI R

CAIRO, Alexander, IL

Built 1929 Load: 21.4 t ADT: 3,450

TR 330

Poor

Over: E. BUREAU CR.

2 MI. N.E. OF MALDEN, Bureau, IL

Built 1965 Load: 21.4 t ADT: 25

TR-109

Poor

Over: LIME CREEK

4 MI. W. GREEN OAK, Bureau, IL

Built 1959 Load: 21.4 t ADT: 150

SCENIC BLUFF RD

Poor

Over: CARROLL CREEK

3.5 M W MT CARROLL, Carroll, IL

Built 1974 Load: 21.4 t ADT: 75

TR 71

Poor

Over: BUCKHART CREEK

6.25 MI. E EDINBURG, Christian, IL

Built 1900 Load: 21.4 t ADT: 20

TR-345A

Poor

Over: ELM CREEK

2 MI E FLORA, Clay, IL

Built 1959 Load: 21.4 t ADT: 100

31ST STREET

Poor

Over: METRA ELEC & CN

3100 S & 628 E, Cook, IL

Built 1921 Load: 21.4 t ADT: 7,550

CANAL ST

Poor

Over: UNION STATION

500W & 200S TO 300S, Cook, IL

Built 1926 Load: 21.4 t ADT: 5,100

THAWVILLE RD

Poor

Over: STREAM

1510E,1900N, Ford, IL

Built 1936 Load: 21.4 t ADT: 75

ROBIN RD - TR 459

Poor

Over: JAKE CREEK

SW-19-T4NR2E, Fulton, IL

Built 1966 Load: 21.4 t ADT: 25

CH 39

Poor

Over: S. EDWARDS RIVER

BISHOP HILL, Henry, IL

Built 1969 Load: 21.4 t ADT: 650

SENECA ST#2300

Poor

Over: STREAM

N 2553,E 2890, LaSalle, IL

Built 1965 Load: 21.4 t ADT: 1,600

TR-222

Poor

Over: TRIB INDIAN CR

E 1250TH N 4630, LaSalle, IL

Built 1977 Load: 21.4 t ADT: 250

TR 168(CARR RD)

Poor

Over: FINLEY CREEK

5.1 MI E OF MACON, Macon, IL

Built 1981 Load: 21.4 t ADT: 25

BULL VALLEY ROAD

Poor

Over: BOONE CREEK

0.2 MI E OF CURRAN R, McHenry, IL

Built 1969 Load: 21.4 t ADT: 9,300

TR 128

Poor

Over: SPOON CREEK

2 MI W WOODSON, Morgan, IL

Built 1961 Load: 21.4 t ADT: 100

FAU 9168

Poor

Over: RICHLAND CREEK

0.3 M N OF SHILOH RD, St. Clair, IL

Built 1966 Load: 21.4 t ADT: 8,950

TR 42 A

Poor

Over: STREAM

1 MI SE ARMSTRONG, Vermilion, IL

Built 1943 Load: 21.4 t ADT: 35

TR 312

Poor

Over: Masters Fork

4 MI W OF LA MOILLE, Bureau, IL

Built 1915 Load: 21.7 t ADT: 25

TR 68

Poor

Over: SPOON RIVER EAST FOR

1.5 MI. SE. NEPONSET, Bureau, IL

Built 1965 Load: 21.7 t ADT: 25

TR 89

Poor

Over: STREAM

4.5 MI NE THOMASBORO, Champaign, IL

Built 1982 Load: 21.7 t ADT: 25

TR 282A

Poor

Over: LAKE FORK

3 MI N PANA, Christian, IL

Built 1927 Load: 21.7 t ADT: 20

WOLF RD

Poor

Over: FLAG CREEK

0.9 M N 79TH P10, Cook, IL

Built 1960 Load: 21.7 t ADT: 9,850

Showing 26,351-26,400 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.