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

TR-113 BRACEVILLE

Poor

Over: W. FORK MAZON RIVER

.19 MI W TYNAN RD, Grundy, IL

Built 1910 Load: 20.1 t ADT: 150

TR 400

Poor

Over: LA MOINE RIVER

3.5 MI NE LAHARPE, Hancock, IL

Built 1967 Load: 20.1 t ADT: 50

TR 243

Poor

Over: TRIB OF W FK BEAR CR

1.5 MI S ELVASTON, Hancock, IL

Built 1999 Load: 20.1 t ADT: 50

FAU 9707 (UNMARKED

Poor

Over: CRABORCHARD CREEK

1.75 M E CARBONDALE, Jackson, IL

Built 1920 Load: 20.1 t ADT: 3,500

RD TO LANDFILL

Poor

Over: ILL RV BACK WATER

E 209TH N 2605, LaSalle, IL

Built 1932 Load: 20.1 t ADT: 75

FAS-806

Poor

Over: EAGLE BRANCH

4 MI SE CHAUNCEY, Lawrence, IL

Built 1945 Load: 20.1 t ADT: 150

CH-12

Poor

Over: OTTER POND DRAIN DT

1.5 MI NE LAWRENCEVL, Lawrence, IL

Built 1931 Load: 20.1 t ADT: 50

TR-222 (THORPE RD)

Poor

Over: BEACH CREEK

1.0 MI S OGLE CO L, Lee, IL

Built 1971 Load: 20.1 t ADT: 50

IL 111

Poor

Over: PIASA CREEK

0.2 M S JCT IL 16, Macoupin, IL

Built 1929 Load: 20.1 t ADT: 4,200

EAST ST

Poor

Over: TOWN BROOK

EAST ST AT CR, Morgan, IL

Built 1979 Load: 20.1 t ADT: 1,100

STAAB ROAD

Poor

Over: HICKS HOLLOW CREEK

WLINENE1/43T10NR8E, Peoria, IL

Built 1956 Load: 20.1 t ADT: 50

TR 293

Poor

Over: BAY CREEK

4.0 MI E PITTSFIELD, Pike, IL

Built 1970 Load: 20.1 t ADT: 50

I-255

Poor

Over: NSRR

0.5 mi S of IL 15, St. Clair, IL

Built 1980 Load: 20.1 t ADT: 41,500

FAS 469-CH 9

Poor

Over: LITTLE MACKINAW RV

NE-15-T23NR5W, Tazewell, IL

Built 1961 Load: 20.1 t ADT: 675

TR 243

Poor

Over: STONY CREEK

1.5 NW MUNCIE, Vermilion, IL

Built 1918 Load: 20.1 t ADT: 50

TOWNSHIP ROAD 3

Poor

Over: SILVER CREEK

7 MI S OF BUDA, Bureau, IL

Built 1970 Load: 20.4 t ADT: 20

N OLD GALENA TRAIL

Poor

Over: PLUM RIVER

5 M NW MT CARROLL, Carroll, IL

Built 1955 Load: 20.4 t ADT: 50

TR 25

Poor

Over: SANGAMON RIVER

3.5 MI N FISHER, Champaign, IL

Built 1982 Load: 20.4 t ADT: 50

MS4023 (Armitage A

Poor

Over: Addison Creek

0.1 MI W WOLF RD, Cook, IL

Built 1961 Load: 20.4 t ADT: 150

N. BALDWIN RD.

Poor

Over: BUFFALO CREEK

0.35 M N OF DUNDEE, Cook, IL

Built 1970 Load: 20.4 t ADT: 6,800

FAS-651

Poor

Over: LITTLE CREEK

4.5 MI NNE RAMSEY, Fayette, IL

Built 1935 Load: 20.4 t ADT: 125

6TH STREET 8200

Poor

Over: TOWN BRANCH CREEK

VANDALIA, Fayette, IL

Built 1940 Load: 20.4 t ADT: 875

BEAR PAW RD - TR 1

Poor

Over: STREAM

CTR-17-T7NR2E, Fulton, IL

Built 1900 Load: 20.4 t ADT: 25

TR 163

Poor

Over: BR OF OAT CREEK

5.0 MI SW ATKINSON, Henry, IL

Built 1928 Load: 20.4 t ADT: 50

TR 565

Poor

Over: SPRING CR

.7M E US45, Iroquois, IL

Built 1915 Load: 20.4 t ADT: 50

TR 396

Poor

Over: TRIB TO SUGAR CR

.25 MI W STOCKLAND, Iroquois, IL

Built 1907 Load: 20.4 t ADT: 50

TR-264

Poor

Over: CREEK

1.5 MI NW STE MARIE, Jasper, IL

Built 1930 Load: 20.4 t ADT: 25

CHICAGO RD/MS 362

Poor

Over: EAST AUX SABLE CK

BY PETERSON RD, Kendall, IL

Built 1970 Load: 20.4 t ADT: 225

TR-10 (EAKLE RD)

Poor

Over: GREEN RIVER TRIB

1.2 M N BUREAU CO LN, Lee, IL

Built 1971 Load: 20.4 t ADT: 50

TR 24A

Poor

Over: SCATTERING POINT

1675 N, 500 E, Livingston, IL

Built 1950 Load: 20.4 t ADT: 25

CH 19 EXTENSION IL

Poor

Over: WILLOW BRANCH

N EDGE OF NIANTIC, Macon, IL

Built 1978 Load: 20.4 t ADT: 700

TR-156

Poor

Over: DAVIDSON CREEK

4 MI NW SALEM, Marion, IL

Built 1909 Load: 20.4 t ADT: 25

TR 256

Poor

Over: INDIAN CR

2.5 MI SW YATESVILLE, Morgan, IL

Built 1967 Load: 20.4 t ADT: 50

EAST LINE ROAD- TR

Poor

Over: S BR KISHWAUKEE RIV.

5.0 NE MONROE CENTER, Ogle, IL

Built 1982 Load: 20.4 t ADT: 150

TR-35A

Poor

Over: W FK COON CREEK

3 MI SW DUNDAS, Richland, IL

Built 1909 Load: 20.4 t ADT: 50

TR 213A

Poor

Over: BN RR

3 MI SW OF BADER, Schuyler, IL

Built 1900 Load: 20.4 t ADT: 25

FAS 2462-CH 11

Poor

Over: DRAINAGE DITCH

SW COR-7-T22NR5W, Tazewell, IL

Built 1960 Load: 20.4 t ADT: 400

WASH. ST(MS 8160)

Poor

Over: GRAPE CR

S SIDE OF TILTON, Vermilion, IL

Built 1939 Load: 20.4 t ADT: 700

FAP-821/FR-1686

Poor

Over: STREAM

1 MI SW JCT US-45, Wayne, IL

Built 1923 Load: 20.4 t ADT: 10

SMALTZ ROAD

Poor

Over: OTTER CREEK

4 MI NE FULTON, Whiteside, IL

Built 1982 Load: 20.4 t ADT: 375

CH 11

Poor

Over: MCKEE CREEK

4.7 MI N LIBERTY, Adams, IL

Built 1988 Load: 20.7 t ADT: 750

TR 390

Poor

Over: BRUSH CREEK

1.5 MI. E. ARLINGTON, Bureau, IL

Built 1964 Load: 20.7 t ADT: 25

TR 148

Poor

Over: UNION DRAIN DIT #3

2.2 MI N CHARLESTON, Coles, IL

Built 1959 Load: 20.7 t ADT: 75

CORTLAND ST

Poor

Over: N BR CHICAGO RIV

1440 W CORTLAND, Cook, IL

Built 1902 Load: 20.7 t ADT: 18,600

FAS 1453-CH 22

Poor

Over: BIG CREEK

SE-16-T6NR4E, Fulton, IL

Built 1939 Load: 20.7 t ADT: 300

TR 339

Poor

Over: PIGEON CR

.5 MI E. CISSA PARK, Iroquois, IL

Built 1967 Load: 20.7 t ADT: 150

TR 150C

Poor

Over: BRANCH LITTLE PIASA

.5 MI. W. NEW DELHI, Jersey, IL

Built 1975 Load: 20.7 t ADT: 150

CH-2 (DEWEY AVE)

Poor

Over: HUGHLETTS BRANCH

N LIMIT OF GALENA, Jo Daviess, IL

Built 1952 Load: 20.7 t ADT: 425

CREEK RD

Poor

Over: LITTLE ROCK CK

0.5MI N-LITTLE RK RD, Kendall, IL

Built 1995 Load: 20.7 t ADT: 1,550

TR-142

Poor

Over: DRAIN DITCH

N EDGE MT CARMEL APT, Lawrence, IL

Built 1967 Load: 20.7 t ADT: 35

Showing 26,301-26,350 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.