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 149

Good

Over: SHILOH DRAIN DITCH 3

2 MI S OF GARLAND, Edgar, IL

Built 1965 Load: 24.3 t ADT: 50

TR-46

Good

Over: MOCCASIN CREEK

0.5 MI N BLUE POINT, Effingham, IL

Built 1972 Load: 24.3 t ADT: 100

TR-269A

Good

Over: RAMSEY CREEK

3.5 M NE EBERLE, Effingham, IL

Built 1976 Load: 24.3 t ADT: 200

TR-310A

Good

Over: RAMSEY CREEK

3 MI NE EBERLE, Effingham, IL

Built 1975 Load: 24.3 t ADT: 50

TR-14A

Good

Over: FULFER CREEK

7 MI S ALTAMONT, Effingham, IL

Built 1984 Load: 24.3 t ADT: 50

2000 CHURCH ST

Good

Over: DIETERICH CREEK

DIETERICH, Effingham, IL

Built 1975 Load: 24.3 t ADT: 75

FAS-721 (CH-1)

Good

Over: TRIB HURRICANE CREEK

0.5 MI W BINGHAM, Fayette, IL

Built 1932 Load: 24.3 t ADT: 450

FAS-721 (CH-1)

Good

Over: TRIB HURRICANE CREEK

0.5 MI NE BINGHAM, Fayette, IL

Built 1934 Load: 24.3 t ADT: 600

CH 9 KEMPTON RD

Good

Over: STREAM

1630E,3700N, Ford, IL

Built 1934 Load: 24.3 t ADT: 125

CH 9 KEMPTON

Good

Over: STREAM

1740E,3700N, Ford, IL

Built 1935 Load: 24.3 t ADT: 125

TR 30A SULLIVANT

Good

Over: STREAM

1150N,800E, Ford, IL

Built 1974 Load: 24.3 t ADT: 75

TR 27

Good

Over: STREAM

2600N,1280E, Ford, IL

Built 1980 Load: 24.3 t ADT: 75

FAS 1874 REND CTY

Good

Over: TRIB. SANDUSKY CREEK

HORSESHOE RD, Franklin, IL

Built 1967 Load: 24.3 t ADT: 550

CH 16

Good

Over: TURKEY CREEK

SE-7-T7NR3E, Fulton, IL

Built 1956 Load: 24.3 t ADT: 75

PEANUT RIDGERD-TR3

Good

Over: LITTLE SISTER CREEK

CTR-9-T5NR4E, Fulton, IL

Built 1977 Load: 24.3 t ADT: 50

OR 2

Good

Over: CREEK

NE-19-T5NR2E, Fulton, IL

Built 1939 Load: 24.3 t ADT: 200

FAS 745

Good

Over: HODGES CREEK

2 MI E OF ROCKBRIDGE, Greene, IL

Built 1970 Load: 24.3 t ADT: 175

KINSMAN RD TR-8

Good

Over: TRIB TO HOG RUN

.28 MI S WAUPECAN RD, Grundy, IL

Built 1965 Load: 24.3 t ADT: 150

FAS 2934

Good

Over: BR OF BIG CREEK

2.3 MI N OF HWY 146, Hardin, IL

Built 1974 Load: 24.3 t ADT: 150

FAS 2934

Good

Over: BR OF BIG CREEK

2.5 MI N OF HWY 146, Hardin, IL

Built 1974 Load: 24.3 t ADT: 150

FAS 1934

Good

Over: HOSICK CK

1.5 MI NORTH E'TOWN, Hardin, IL

Built 1955 Load: 24.3 t ADT: 325

TR 214D

Good

Over: CREEK

1/4 MI SO OF POMONA, Jackson, IL

Built 1986 Load: 24.3 t ADT: 150

TR 389

Good

Over: CAVE CR

1.0 MI SO OF POMONA, Jackson, IL

Built 1986 Load: 24.3 t ADT: 125

TR-276

Good

Over: HICKORY CREEK

1 MI NW WILLOW HILL, Jasper, IL

Built 1978 Load: 24.3 t ADT: 50

CH-14

Good

Over: WEST CROOKED CREEK

2.5 MI E FALMOUTH, Jasper, IL

Built 1984 Load: 24.3 t ADT: 250

FAS 706

Good

Over: WOLF CREEK

1.3 MI N BOGOTA, Jasper, IL

Built 1958 Load: 24.3 t ADT: 575

TR 153

Good

Over: CACHE R.

SW1/4 SEC10 T13S,R2E, Johnson, IL

Built 1977 Load: 24.3 t ADT: 25

TR 101

Good

Over: CACHE RIVER

NW1/4 SEC20 T12S,R2E, Johnson, IL

Built 1979 Load: 24.3 t ADT: 25

TWP RD 111

Good

Over: DRAINAGE DITCH

SW1/4 SEC14 T12S,R2E, Johnson, IL

Built 1977 Load: 24.3 t ADT: 225

MEREDITH ROAD

Good

Over: VIRGIL DD NO 1

3 MI E. MAPLE PARK, Kane, IL

Built 1900 Load: 24.3 t ADT: 1,450

FAS 393-CH 4

Good

Over: WALNUT CREEK

CTR-17-T13NR3E, Knox, IL

Built 1934 Load: 24.3 t ADT: 300

SOUTH DEERE PK DR

Good

Over: SMALL RAVINE

.2 M N LAKE-COOK RD, Lake, IL

Built 1928 Load: 24.3 t ADT: 175

CHECKER RD.

Good

Over: BUFFALO CREEK

0.45M.E.SCHAEFFER RD, Lake, IL

Built 1988 Load: 24.3 t ADT: 900

TR 454 A

Good

Over: Trib Waupecan Creek

E 28th, N 1772, LaSalle, IL

Built 1930 Load: 24.3 t ADT: 20

TR 137

Good

Over: Spring Creek

0.5 Mi W. of US 52, LaSalle, IL

Built 1930 Load: 24.3 t ADT: 150

GRAND DETOUR RD

Good

Over: MOORE CREEK

1.0 MI SE OF ILL 2, Lee, IL

Built 1969 Load: 24.3 t ADT: 200

THORPE RD

Good

Over: DRAINAGE DITCH

3.0 MI S REYNOLDS RD, Lee, IL

Built 1901 Load: 24.3 t ADT: 25

CH 13 FAS 354

Good

Over: MOREHOUSE CR.

3 MI N GRAYMONT, Livingston, IL

Built 1954 Load: 24.3 t ADT: 350

TR 237

Good

Over: INDIAN CREEK

2020 E, 600 N, Livingston, IL

Built 1971 Load: 24.3 t ADT: 150

CH 3

Good

Over: LONGMEYER DITCH

1.7 MILE S OF IL 116, Livingston, IL

Built 1920 Load: 24.3 t ADT: 525

TR 245

Good

Over: LOCAL DRAINAGE

1 MI NE CORNLAND, Logan, IL

Built 1900 Load: 24.3 t ADT: 20

BRGHTON BNKR HIL R

Good

Over: HONEYCUT BRANCH

2.3 M E BRIGHTON, Macoupin, IL

Built 1953 Load: 24.3 t ADT: 1,450

CH 12 FAS 732

Good

Over: EAST FRK OTTER CR

.75 M W GIRARD, Macoupin, IL

Built 1938 Load: 24.3 t ADT: 1,850

TR 32

Good

Over: PIASA CR.

4.0 MI W SHIPMAN, Macoupin, IL

Built 1901 Load: 24.3 t ADT: 150

TR-401A

Good

Over: SCHWARTZ BRANCH

1.5 MI E CENTRALIA, Marion, IL

Built 1909 Load: 24.3 t ADT: 275

FAS-2789

Good

Over: SKILLET FORK

4 MI E OMEGA, Marion, IL

Built 1975 Load: 24.3 t ADT: 75

FAS 789

Good

Over: PAINTROCK CREEK

6 MI S IUKA, Marion, IL

Built 1948 Load: 24.3 t ADT: 725

FAS 795

Good

Over: PAINTROCK CREEK

6 MI S IUKA, Marion, IL

Built 1909 Load: 24.3 t ADT: 1,000

OR-6125 (PUB PRK R

Good

Over: SPILLWAY

STEPHEN FORBES ST PK, Marion, IL

Built 1963 Load: 24.3 t ADT: 50

CH 13 (CH-R60)

Good

Over: SENACHWINE CREEK

T13N-R8E-4PM SEC 21, Marshall, IL

Built 1971 Load: 24.3 t ADT: 325

Showing 14,501-14,550 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.