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

BUSS BRANCH RD

Good

Over: GERHARDT CREEK

2.0MI SW PADERBORN, St. Clair, IL

Built 2000 Load: 32.4 t ADT: 375

ETLING ROAD

Good

Over: W. FORK RICHLAND CT.

1MI EAST OF CH 9, St. Clair, IL

Built 2001 Load: 32.4 t ADT: 350

TR 218

Good

Over: BRANCH SILVER CREEK

1 MI S IL. 15, St. Clair, IL

Built 2002 Load: 32.4 t ADT: 150

WASH CO LINE/TR 2

Good

Over: TRIB MUD CREEK

.5MI S LEHR RD, St. Clair, IL

Built 2002 Load: 32.4 t ADT: 300

SAEGER RD/TR 135

Good

Over: PRAIRIE DUPONT CREEK

0.9 MI NW OF RT 158, St. Clair, IL

Built 2004 Load: 32.4 t ADT: 350

OAK GROVE SCH. TR

Good

Over: BR LITTLE SILVER CR.

1 MI W CH 50, St. Clair, IL

Built 2003 Load: 32.4 t ADT: 325

PRESSS RD/TR 197

Good

Over: KINNEY BRANCH

2.5 MI E IL 159, St. Clair, IL

Built 2008 Load: 32.4 t ADT: 425

GRODEON RD/TR 151

Good

Over: HOG RIVER

1 MI W IL 4, St. Clair, IL

Built 2009 Load: 32.4 t ADT: 225

SHILOH STATION RD

Good

Over: BRANCH LOOP CREEK

1 MI N IL RTE 161, St. Clair, IL

Built 2006 Load: 32.4 t ADT: 700

BLACK QUARTER RD

Good

Over: DRY LANE SLOUGH

.5MI NE IL 13, St. Clair, IL

Built 2010 Load: 32.4 t ADT: 50

EMRALD MOUND TR 26

Good

Over: E BR LITTLE SILVER

1 MI N US 50, St. Clair, IL

Built 2009 Load: 32.4 t ADT: 100

PARK RD/TR 102

Good

Over: DOUGLAS CREEK

0.4 MI N SCHMIDT LN, St. Clair, IL

Built 2011 Load: 32.4 t ADT: 200

Press Rd/TR 197

Good

Over: Douglas Creek

1 MI E IL Rt 159, St. Clair, IL

Built 2012 Load: 32.4 t ADT: 375

TR 285 - Schmoll R

Good

Over: Branch of Doza Creek

1 Mi E of Baldwin Rd, St. Clair, IL

Built 2014 Load: 32.4 t ADT: 75

TR 223 Pensoneau R

Good

Over: Trib Little Mud Cr

0.2 Mi E of IL Rte 4, St. Clair, IL

Built 2015 Load: 32.4 t ADT: 150

STATE STREET

Good

Over: ALTON/SOUTH RR

.15 E OF 40TH ST, St. Clair, IL

Built 1999 Load: 32.4 t ADT: 5,400

LEBANON AVE FAU 92

Good

Over: METRO LINK

0.5 NE OF IL 159, St. Clair, IL

Built 1999 Load: 32.4 t ADT: 6,850

CLEVELAND AVENUE

Good

Over: RICHLAND CREEK

BELLEVILLE, St. Clair, IL

Built 2010 Load: 32.4 t ADT: 675

MS-7241 BicentPkDr

Good

Over: Creek

0.5 Mi S IL 13, St. Clair, IL

Built 2013 Load: 32.4 t ADT: 225

MS-6302 Dutch Hw R

Good

Over: Creek

0.1 Mi S Lebanon Rd, St. Clair, IL

Built 2016 Load: 32.4 t ADT: 475

North Long Street

Good

Over: Little Canteen Creek

E Sec 7 T2N R8W, St. Clair, IL

Built 2016 Load: 32.4 t ADT: 700

N. SMILEY ST

Good

Over: ENGLE CREEK

1.7MI N OLD US 50, St. Clair, IL

Built 1995 Load: 32.4 t ADT: 1,100

DEER CREEK ROAD

Good

Over: TRIB TO ENGLE CREEK

.4MI W 7 HILLS RD, St. Clair, IL

Built 2006 Load: 32.4 t ADT: 1,550

FAU 9331 VENITA DR

Good

Over: CSX RAILROAD

.16 MI N FAU 9166, St. Clair, IL

Built 2015 Load: 32.4 t ADT: 6,650

PLSNT RDG RD/FAU91

Good

Over: CREEK

1.2 MI N OF BUNKUM R, St. Clair, IL

Built 2009 Load: 32.4 t ADT: 550

North 10th Street

Good

Over: Drainage Ditch

Mascoutah, St. Clair, IL

Built 2015 Load: 32.4 t ADT: 725

PARK ACCESS ROAD

Good

Over: WHISPERING WILLOW LK

FRANK HOLTEN ST. PK., St. Clair, IL

Built 2004 Load: 32.4 t ADT: 350

CH-17 (Holmes Rd)

Good

Over: Trib. Mud Run

NW Cor Sec35 T12NR7E, Stark, IL

Built 2014 Load: 32.4 t ADT: 325

FAS 1374-CH 1

Good

Over: COOPER'S CREEK

N.CTR-4-T13NR7E, Stark, IL

Built 1983 Load: 32.4 t ADT: 100

FAS 1376-CH 6

Good

Over: INDIAN CREEK

NE-36-T13NR5E, Stark, IL

Built 1980 Load: 32.4 t ADT: 200

FAS 375-CH 11

Good

Over: JACK CREEK

NE-11-T13NR6E, Stark, IL

Built 1997 Load: 32.4 t ADT: 325

CH 16

Good

Over: FOX CREEK

W.CTR-12-T14NR7E, Stark, IL

Built 2002 Load: 32.4 t ADT: 150

CH 23

Good

Over: JACK CREEK

CTR-3-T13NR6E, Stark, IL

Built 2009 Load: 32.4 t ADT: 75

FAS 375-CH 11

Good

Over: SPOON RIVER

SE-1-T13NR6E, Stark, IL

Built 1987 Load: 32.4 t ADT: 300

FAS-1372 (CH-13)

Good

Over: Mud Run Creek

400N 1640E, Stark, IL

Built 2017 Load: 32.4 t ADT: 650

FAS 208-CH 20

Good

Over: SILVER CREEK

SE-3-T14NR7E, Stark, IL

Built 2006 Load: 32.4 t ADT: 100

FAS-375 (CH-11)

Good

Over: Spoon River Trib.

NW 1/4 Sec 18RTET13N, Stark, IL

Built 2015 Load: 32.4 t ADT: 225

FAS-375 (CH-11)

Good

Over: Spoon River

SW 1/4 Sec 19R7ET13N, Stark, IL

Built 2015 Load: 32.4 t ADT: 225

TR 37

Good

Over: SPOON RIVER

CTR-26-T14NR6E, Stark, IL

Built 1984 Load: 32.4 t ADT: 25

TR 49

Good

Over: JACK CREEK

E.CTR-31-T14NR6E, Stark, IL

Built 1985 Load: 32.4 t ADT: 50

TR 92

Good

Over: TRIB OF SPOON RIVER

N.CTR-35-T14NR6E, Stark, IL

Built 1981 Load: 32.4 t ADT: 25

TR 141

Good

Over: INDIAN CREEK

E.CTR-8-T12NR6E, Stark, IL

Built 1995 Load: 32.4 t ADT: 50

TR 3 (PEORIA CO.)

Good

Over: SPOON RIVER

00N 980E, Stark, IL

Built 1992 Load: 32.4 t ADT: 75

TR 63

Good

Over: BR INDIAN CREEK

NE COR-11-T13NR5E, Stark, IL

Built 1984 Load: 32.4 t ADT: 75

TR 16

Good

Over: FITCH CREEK

NE-18-T13NR5E, Stark, IL

Built 1997 Load: 32.4 t ADT: 50

TR 99

Good

Over: INDIAN CREEK

NE COR-25-T13NR5E, Stark, IL

Built 1986 Load: 32.4 t ADT: 75

TR-85 (Vineyard Rd

Good

Over: Trib to Indian Creek

900N 580E, Stark, IL

Built 2017 Load: 32.4 t ADT: 125

TR 21A

Good

Over: E F SPOON RIVER

W.CTR-15-T14NR7E, Stark, IL

Built 2011 Load: 32.4 t ADT: 25

TR-3

Good

Over: Fork of Spoon River

1800N 1440E, Stark, IL

Built 2017 Load: 32.4 t ADT: 25

BROADMOOR RD-TR 61

Good

Over: TRIB COOPERS DEFEAT

W.CTR-1-T13NR7E, Stark, IL

Built 1987 Load: 32.4 t ADT: 25

Showing 20,901-20,950 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.