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 32

Good

Over: TRIB TO SPRING CREEK

3.75E,0.5N THAWVILLE, Iroquois, IL

Built 1983 Load: 32.4 t ADT: 50

TR-199

Good

Over: Creek

1.5N, .5W RIDGELAND, Iroquois, IL

Built 1990 Load: 32.4 t ADT: 25

TR 199

Good

Over: PRAIRIE CREEK

.25 M E FORD-IROQ, Iroquois, IL

Built 1993 Load: 32.4 t ADT: 25

TR 231

Good

Over: UNNAMMED TRIB

SEC 29 T26N R10E 3RD, Iroquois, IL

Built 1996 Load: 32.4 t ADT: 50

TR 227

Good

Over: STREAM

.2 MI E. FORD-IROQ L, Iroquois, IL

Built 2006 Load: 32.4 t ADT: 75

TR 26A

Good

Over: TRIB TO SPRING CR

1.5 MI W DELREY, Iroquois, IL

Built 1998 Load: 32.4 t ADT: 75

TR 338

Good

Over: COON CR

5.4M S US24 ON TR338, Iroquois, IL

Built 1981 Load: 32.4 t ADT: 25

TR 382

Good

Over: TRIB TO COON CREEK

0.6 MI SW OF DARROW, Iroquois, IL

Built 1982 Load: 32.4 t ADT: 25

TR 358

Good

Over: UNNAMED STREAM

SHEUAMI COUNTRY CLUB, Iroquois, IL

Built 1983 Load: 32.4 t ADT: 175

TR 338

Good

Over: POSSUM TROT DITCH

2500E, 1350N, Iroquois, IL

Built 2008 Load: 32.4 t ADT: 25

TR 452

Good

Over: UNNAMED TRIBUTARY

SEE BELOW, Iroquois, IL

Built 2004 Load: 32.4 t ADT: 25

FAS 334 CH 9

Good

Over: MUD CREEK

3MI E,.5 N STOCKLAND, Iroquois, IL

Built 2008 Load: 32.4 t ADT: 200

TR 434

Good

Over: COON CREEK

5 MI N STOCKLAND, Iroquois, IL

Built 1979 Load: 32.4 t ADT: 50

TR 2D

Good

Over: SUGAR CREEK

STATE LN 1.5N MLFORD, Iroquois, IL

Built 1983 Load: 32.4 t ADT: 50

TR 2E

Good

Over: MUD CREEK

3.5E, 0.5S STOCKLAND, Iroquois, IL

Built 1990 Load: 32.4 t ADT: 25

TR 2E

Good

Over: KULT DITCH

STOCKLAND TWP SEC30,, Iroquois, IL

Built 1991 Load: 32.4 t ADT: 25

TR-2E

Good

Over: Kult Ditch

STOCKLAND TWP., Iroquois, IL

Built 1991 Load: 32.4 t ADT: 25

TR 450

Good

Over: COON CREEK

SEC 1 T25N R10W 2ND, Iroquois, IL

Built 1996 Load: 32.4 t ADT: 25

TR 434

Good

Over: TRIB TO SUGAR CREEK

1.2 MI E OF CH41, Iroquois, IL

Built 1999 Load: 32.4 t ADT: 50

TR 251

Good

Over: COON CR

2.7M S 5M E WOODLAND, Iroquois, IL

Built 2008 Load: 32.4 t ADT: 75

TR 434

Good

Over: MUD CREEK

2M E 1M N STOCKLAND, Iroquois, IL

Built 2008 Load: 32.4 t ADT: 50

CITY ST.#6100

Good

Over: MCCUTCHEON DITCH

CRESCENT CITY, Iroquois, IL

Built 1983 Load: 32.4 t ADT: 125

TR 2 - JACO ROAD

Good

Over: TRIB TO LITTLE MUDDY

250N000E, Jackson, IL

Built 1996 Load: 32.4 t ADT: 25

IL 3-FAP 312

Good

Over: DEGOGNIA CREEK

RANDPH/JKSN CO LI, Jackson, IL

Built 2001 Load: 32.4 t ADT: 2,150

LAKE ROAD CS 920

Good

Over: CREEK

S LINE SEC 7-9-1, Jackson, IL

Built 1983 Load: 32.4 t ADT: 550

TR 299-DOGWOOD ROA

Good

Over: SYCAMORE CREEK

1.2M.E.JCT.W/FAS919, Jackson, IL

Built 1984 Load: 32.4 t ADT: 375

TR 97

Good

Over: GLENN CREEK

S.LINE SEC. 27-7-2, Jackson, IL

Built 1984 Load: 32.4 t ADT: 50

TR 202

Good

Over: POND CREEK

CENTER SEC.17-8-2, Jackson, IL

Built 1984 Load: 32.4 t ADT: 100

TR 122

Good

Over: CREEK

NW1/4SEC 22-7-3, Jackson, IL

Built 1985 Load: 32.4 t ADT: 75

TR 95

Good

Over: RATTLESNAKE CREEK

EAST LINE SEC 27-7-3, Jackson, IL

Built 1986 Load: 32.4 t ADT: 125

AVA BLTP-FAS1918

Good

Over: POND CREEK

SE 1/4 SEC 20-8-2, Jackson, IL

Built 1988 Load: 32.4 t ADT: 2,550

TR 18

Good

Over: REEDS CREEK

2.75 MI S IL 3, Jackson, IL

Built 1989 Load: 32.4 t ADT: 10

TR 170

Good

Over: CAMP CREEK

W1/2 SEC 13 T8S R3W, Jackson, IL

Built 1989 Load: 32.4 t ADT: 75

TR 252

Good

Over: GLENN CREEK

1.5M SE VERGENNES, Jackson, IL

Built 1991 Load: 32.4 t ADT: 25

CH 15-KIMMEL BR RD

Good

Over: BEAUCOUP CREEK

NEARS.LINESEC.23-8-2, Jackson, IL

Built 1992 Load: 32.4 t ADT: 325

TR 243

Good

Over: MUD CREEK

3/4M N OF OLD RTE 13, Jackson, IL

Built 1993 Load: 32.4 t ADT: 350

CH 10

Good

Over: TALBOT HOLLOW

NW 1/4 SEC 14-9-4, Jackson, IL

Built 1994 Load: 32.4 t ADT: 50

TR 31

Good

Over: GRANNYS BRANCH

1.2 MI E OF US 51, Jackson, IL

Built 1994 Load: 32.4 t ADT: 50

TR 198

Good

Over: POND CREEK

0.5 MI N OF FAS 1918, Jackson, IL

Built 1994 Load: 32.4 t ADT: 75

CH 9-INDIAN RIDGE

Good

Over: REEDS CREEK

CENTER SEC 12-9-5, Jackson, IL

Built 1997 Load: 32.4 t ADT: 50

TR 170-CAMP CREEK

Good

Over: TRIB TO CAMP CREEK

0.5 MI E FAS 1918, Jackson, IL

Built 1997 Load: 32.4 t ADT: 75

CH 15 KIMMEL BRIDG

Good

Over: BEAUCOUPE CREEK TRIB

E.LINE SECT.11-8-2, Jackson, IL

Built 2003 Load: 32.4 t ADT: 200

SUGAR HILL RD-CH 2

Good

Over: CREEK

2.2 MI N OF IL 4, Jackson, IL

Built 1999 Load: 32.4 t ADT: 250

TR 90 WHITE LN

Good

Over: WORTHEN BAYOU

1.2MI S OF IL RT 3, Jackson, IL

Built 2003 Load: 32.4 t ADT: 50

FAS 912 - RADDLE R

Good

Over: MATUSKY CREEK

1.5 MI S IL 3, Jackson, IL

Built 1998 Load: 32.4 t ADT: 125

FAU 9572

Good

Over: BIG MUDDY RIVER

SW EDGE M'BORO, Jackson, IL

Built 2000 Load: 32.4 t ADT: 1,900

MCLAUGHLIN RD-TR 2

Good

Over: POND CREEK

0.33 MI N AVA ROAD, Jackson, IL

Built 1999 Load: 32.4 t ADT: 100

CH 25

Good

Over: TRIB TO DRURY CR

0.5 MI S OF MAKANDA, Jackson, IL

Built 2001 Load: 32.4 t ADT: 150

TR 312 MARTIE RD

Good

Over: LITTLE MUDDY TRIB

0.65 MI N OF CH 18, Jackson, IL

Built 2003 Load: 32.4 t ADT: 75

TR 45-CALVARY CEM

Good

Over: BRANCH CREEK

1 MI SW CAMPBELL HIL, Jackson, IL

Built 2001 Load: 32.4 t ADT: 75

Showing 17,851-17,900 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.