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 343

Poor

Over: SIXMILE CR TRIBUTARY

0.75 MI SE SUMMER HI, Pike, IL

Built 1959 Load: 18.1 t ADT: 50

TR 90 (11W)

Poor

Over: SPRING CREEK

2.0 E BERLIN, Sangamon, IL

Built 1958 Load: 18.1 t ADT: 50

TR 156

Poor

Over: STONY CREEK

6.0 E CAMDEN, Schuyler, IL

Built 1900 Load: 18.1 t ADT: 50

TR 332

Poor

Over: BN RR

2.5 MI W OF BADER, Schuyler, IL

Built 1900 Load: 18.1 t ADT: 50

IL 100/106

Poor

Over: ILLINOIS RIVER

E EDGE FLORENCE, Scott, IL

Built 1929 Load: 18.1 t ADT: 1,850

OLD IL 26

Poor

Over: RICHLAND CK&C WIS RR

1.2 MI N ORANGEVILLE, Stephenson, IL

Built 1929 Load: 18.1 t ADT: 475

LYNDON RD

Poor

Over: ELSWORTH CREEK

1 MI N PROPHETSTOWN, Whiteside, IL

Built 1972 Load: 18.1 t ADT: 125

CH 22/FAS 780

Poor

Over: DRY FORK

2.25 MI N OLD RIPLEY, Bond, IL

Built 1958 Load: 18.5 t ADT: 350

TR 12 A

Poor

Over: CLEAR CREEK

4.25 MI W. PALMER, Christian, IL

Built 1920 Load: 18.5 t ADT: 150

TEE BROOK DRIVE

Poor

Over: TINLEY CREEK

0.3M S. OF 151ST ST, Cook, IL

Built 1971 Load: 18.5 t ADT: 275

TR 84

Poor

Over: BR OF SPRING CREEK

1.5 E .25 N JCT45&24, Iroquois, IL

Built 1953 Load: 18.5 t ADT: 75

MUIRHEAD RD.

Poor

Over: CC&P RR

0.5 M N. of Bowes Rd, Kane, IL

Built 1989 Load: 18.5 t ADT: 2,900

FAS-801

Poor

Over: BRUSHY FORK SYSTEM

EAST EDGE BIRDS, Lawrence, IL

Built 1909 Load: 18.5 t ADT: 525

SBI 36

Poor

Over: BLUE CREEK

1MI W DETROIT, Pike, IL

Built 1922 Load: 18.5 t ADT: 25

TR-170 (UNSICKER R

Poor

Over: DILLON CREEK

E.CTR-36-T25NR4W, Tazewell, IL

Built 1965 Load: 18.5 t ADT: 375

TR 190

Poor

Over: BR NORTH CREEK

1.5 MI W-0.5 MI S HO, Washington, IL

Built 1920 Load: 18.5 t ADT: 25

TR 312

Poor

Over: Masters Fork Branch

4 MI W OF LA MOILLE, Bureau, IL

Built 1960 Load: 18.8 t ADT: 25

TR 18

Poor

Over: W FORK SPOON RIVER

4 MI SW OF NEPONSET, Bureau, IL

Built 1956 Load: 18.8 t ADT: 75

TR 197

Poor

Over: CLEAR CREEK

5MI NW PALMER, Christian, IL

Built 1900 Load: 18.8 t ADT: 35

CH-19

Poor

Over: BRUSH CREEK

1 MI E XENIA, Clay, IL

Built 1970 Load: 18.8 t ADT: 100

VIOLET LN

Poor

Over: BUTTERFIELD CR

0.25 M N US 30 P21, Cook, IL

Built 1964 Load: 18.8 t ADT: 225

TR-47

Poor

Over: HUTSON CREEK

2 MI W HUTSONVILLE, Crawford, IL

Built 1962 Load: 18.8 t ADT: 50

TR-133

Poor

Over: SECOND CREEK

1.5 MI W DEXTER, Effingham, IL

Built 1909 Load: 18.8 t ADT: 50

CH 38

Poor

Over: SHAW CREEK

S1/2-13-T6NR1E, Fulton, IL

Built 1942 Load: 18.8 t ADT: 75

FAS 888

Poor

Over: S FORK CYPRESS CREEK

3 MI N OF ILL 13, Gallatin, IL

Built 1959 Load: 18.8 t ADT: 1,100

CO HWY 17

Poor

Over: LA HARPE CREEK

3 MI N OF FTN. GREEN, Hancock, IL

Built 1949 Load: 18.8 t ADT: 225

TR 298

Poor

Over: EDWARDS RIVER

7.5 MI SE CAMBRIDGE, Henry, IL

Built 1964 Load: 18.8 t ADT: 25

TR-37

Poor

Over: BIRCH CREEK

2.5 MI WSW BIRDS, Lawrence, IL

Built 1974 Load: 18.8 t ADT: 75

CH 26(CNTRY CLUB R

Poor

Over: LAKE DECATUR

0.5 MI N OF FAP 320, Macon, IL

Built 1939 Load: 18.8 t ADT: 775

TR 352

Poor

Over: CREEK

5.0 MI W VIRDEN, Macoupin, IL

Built 1991 Load: 18.8 t ADT: 50

PERKINS RD

Poor

Over: FRANKLINVILLE CR

0.05 MI E FRANLINVIL, McHenry, IL

Built 1980 Load: 18.8 t ADT: 725

IL 121 (FAP 320)

Poor

Over: WEST OKAW RIVER

SE OF BETHANY, Moultrie, IL

Built 1966 Load: 18.8 t ADT: 4,700

TR 126

Poor

Over: LAKEFORK DRAINAGE

3.0 MI SE BEMENT, Piatt, IL

Built 1967 Load: 18.8 t ADT: 25

FAS 1622A (CH 28)

Poor

Over: HORSE CREEK

1.0 S PAWNEE, Sangamon, IL

Built 1957 Load: 18.8 t ADT: 325

TR 181

Poor

Over: STONY CREEK

5.0 NW RUSHVILLE, Schuyler, IL

Built 1971 Load: 18.8 t ADT: 150

FAS577

Poor

Over: LOST CREEK

3 MI E BEARDSTOWN, Cass, IL

Built 1936 Load: 19.1 t ADT: 650

CH 8

Poor

Over: LONE TREE CREEK

.3 MI E OF FOOSLAND, Champaign, IL

Built 1984 Load: 19.1 t ADT: 225

MUN 5671

Poor

Over: PAPER MILL BRANCH

2 MI N TAYLORVILLE, Christian, IL

Built 1919 Load: 19.1 t ADT: 300

TR 83

Poor

Over: BROWN BRANCH

4.0 MI E STONINGTON, Christian, IL

Built 1957 Load: 19.1 t ADT: 100

TR 109

Poor

Over: TEN MILE CREEK

3.0 MI N CLINTON, De Witt, IL

Built 1966 Load: 19.1 t ADT: 50

FAS 1455-CH 34

Poor

Over: BARKER CREEK

SE-28-T6NR1E, Fulton, IL

Built 1946 Load: 19.1 t ADT: 75

TR 104

Poor

Over: PANTHER CREEK

3.0 W STILLWELL, Hancock, IL

Built 1968 Load: 19.1 t ADT: 50

TR 84

Poor

Over: LITTLE BEAR CREEK

3.0 MI SW BASCO, Hancock, IL

Built 1972 Load: 19.1 t ADT: 175

MS-6300 (E 450th S

Poor

Over: Mud Creek

1 MI S. OF US 6, Henry, IL

Built 1994 Load: 19.1 t ADT: 50

HIGHLAND AVE

Poor

Over: PINGREE CREEK

0.5MI E PINGREE, Kane, IL

Built 1993 Load: 19.1 t ADT: 1,400

ILL.17

Poor

Over: HORSE CR.

0.7 M E UNION HILL, Kankakee, IL

Built 1958 Load: 19.1 t ADT: 2,950

TR 29

Poor

Over: TRIB E FORK MAZON R

3270 E, 3000 N, Livingston, IL

Built 1965 Load: 19.1 t ADT: 25

CH 49(WALMSLEY RD)

Poor

Over: SAND CREEK

2.7 MI W MT ZION, Macon, IL

Built 1909 Load: 19.1 t ADT: 400

BUNKER HILL ROAD

Poor

Over: RUSH CREEK

0.8 MI W OF IL 23, McHenry, IL

Built 1962 Load: 19.1 t ADT: 100

KUNDE RD

Poor

Over: KISHWAUKEE RIVER

0.5 MI W OF FRANKLIN, McHenry, IL

Built 1985 Load: 19.1 t ADT: 75

Showing 26,101-26,150 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.