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 275

Good

Over: TWO MILE SLOUGH

1.8 MI SE SADORUS, Champaign, IL

Built 1973 Load: 28.2 t ADT: 25

CH 32(FAS 516)

Good

Over: SPOON RIVER

1.7 MI S OF GIFFORD, Champaign, IL

Built 2003 Load: 28.2 t ADT: 525

TR 119

Good

Over: LAMB BRANCH

2.75 MI SE WESTFIELD, Clark, IL

Built 1975 Load: 28.2 t ADT: 50

MAPLE ST

Good

Over: MCDONALD CREEK

0.1 MI S PALATINE RD, Cook, IL

Built 1984 Load: 28.2 t ADT: 125

SCOTT RD

Good

Over: WELCH CREEK

1.2 M W OF DAUBERMAN, Kane, IL

Built 1997 Load: 28.2 t ADT: 425

CH8/MADISON CH5/BO

Good

Over: TRIB TO SILVER CK

5.9MI N PIERRON, Madison, IL

Built 1962 Load: 28.2 t ADT: 300

US 51 (FAP 322)

Good

Over: LOST CREEK

1.8 MI N SANDOVAL, Marion, IL

Built 1959 Load: 28.2 t ADT: 3,150

FAS-2789

Good

Over: DUMS CREEK

2 MI E BRUBAKER, Marion, IL

Built 1971 Load: 28.2 t ADT: 225

CHURCH ST

Good

Over: ROCK CREEK

CHURCH ST IN CARLOCK, McLean, IL

Built 1967 Load: 28.2 t ADT: 475

FAS 0923

Good

Over: CLEAR CREEK

3.6M SE OF WOLF LAKE, Union, IL

Built 1959 Load: 28.2 t ADT: 400

TR 487

Good

Over: STREAM

3.5 MI SE RIDGE FARM, Vermilion, IL

Built 1975 Load: 28.2 t ADT: 20

TR 566

Good

Over: BUCKLEY CK.

1.25 MI SW PITTSBURG, Williamson, IL

Built 1974 Load: 28.2 t ADT: 450

TR 91

Good

Over: BIG DITCH

5.0 MI S FISHER, Champaign, IL

Built 1973 Load: 28.5 t ADT: 250

TR 30

Good

Over: SANGAMON RIVER

2 MI N OF FOOSLAND, Champaign, IL

Built 1973 Load: 28.5 t ADT: 50

CH 17(FAS 529)

Good

Over: KASKASKIA RIVER

1 MI SW OF SADORUS, Champaign, IL

Built 2021 Load: 28.5 t ADT: 825

FAS 673(CH 9)

Good

Over: KICKAPOO CREEK

SE OF MATTOON, Coles, IL

Built 1980 Load: 28.5 t ADT: 2,950

ENT RAMP MDWY TERM

Good

Over: LOWER LEVEL TERM

MIDWAY AIRPORT, Cook, IL

Built 1998 Load: 28.5 t ADT: 8,400

TR 170

Good

Over: FRIENDS CREEK

2.5 MI S LANE, De Witt, IL

Built 1972 Load: 28.5 t ADT: 25

TR 122

Good

Over: LONG POINT CREEK

3MI N 1 MI E WAPELLA, De Witt, IL

Built 1976 Load: 28.5 t ADT: 50

TR 59 A PEACH ORCH

Good

Over: THE BIG FOUR

910E,1400N, Ford, IL

Built 1973 Load: 28.5 t ADT: 50

TR 28 ROODS RD

Good

Over: TRIB TO NETTLE CREEK

0.24 MI N AIRPORT RD, Grundy, IL

Built 1987 Load: 28.5 t ADT: 75

TR 75

Good

Over: CREEK

SE CORNER VERGENNES, Jackson, IL

Built 1981 Load: 28.5 t ADT: 25

TR 39

Good

Over: GOOSEBERRYCREEK

3115 E, 2900 N, Livingston, IL

Built 1978 Load: 28.5 t ADT: 50

CH 18

Good

Over: SUGAR CK TRIB

3 MI E HARTSBURG, Logan, IL

Built 1967 Load: 28.5 t ADT: 200

CONN RD/ TR 280

Good

Over: TRIB TO SILVER CK

1.0 MI SW ALHAMBRA, Madison, IL

Built 1979 Load: 28.5 t ADT: 75

TR 49

Good

Over: INDIAN CREEK BR

1.5 MI S W LITERBERR, Morgan, IL

Built 1978 Load: 28.5 t ADT: 25

FAS 613

Good

Over: N FK MAUVAISETERRE

8.5 M E JACKSONVILLE, Morgan, IL

Built 1995 Load: 28.5 t ADT: 1,150

CH 10 FAS 603

Good

Over: BAY CREEK TRIBUTARY

3.32 MILE EAST NEBO, Pike, IL

Built 1979 Load: 28.5 t ADT: 300

TR 22-A

Good

Over: COPPERAS CREEK

1.7 MI S ILL CITY, Rock Island, IL

Built 1975 Load: 28.5 t ADT: 50

TR 19

Good

Over: CANTRALL CREEK

1.0 S OF CANTRALL, Sangamon, IL

Built 1975 Load: 28.5 t ADT: 550

US 50

Good

Over: LITTLE SILVER CREEK

AT E EDGE LEBANON, St. Clair, IL

Built 1965 Load: 28.5 t ADT: 9,450

TR 214

Good

Over: CEDAR CREEK

SE-22-T11NR1W, Warren, IL

Built 1986 Load: 28.5 t ADT: 50

I 64 EB

Good

Over: RANDOLPH DR DITCH

9.5 MI W ILL-1, White, IL

Built 1975 Load: 28.5 t ADT: 6,100

I 64 WB

Good

Over: RANDOLPH DR DITCH

9.5 MI W ILL-1, White, IL

Built 1975 Load: 28.5 t ADT: 6,100

HANSON ST

Good

Over: S.E. DRAINAGEWAY

0.1 MI S HARRISON AV, Winnebago, IL

Built 1967 Load: 28.5 t ADT: 750

RAILROAD AVENUE

Good

Over: KEITH CREEK

0.03 MI W 9TH ST, Winnebago, IL

Built 2015 Load: 28.5 t ADT: 575

TR 242

Good

Over: PANTHER CR

1.5 MI N PANOLA, Woodford, IL

Built 1940 Load: 28.5 t ADT: 25

TR 272

Good

Over: FLATVILLE DRAIN DIT

2.5 MI N FLATVILLE, Champaign, IL

Built 1971 Load: 28.8 t ADT: 325

TR 267

Good

Over: QUARRY BRANCH

2 MI E OF CASEY, Clark, IL

Built 1977 Load: 28.8 t ADT: 100

LACROSSE AV

Good

Over: NATALIE CR

0.1 M S 151ST, Cook, IL

Built 1967 Load: 28.8 t ADT: 175

I-57

Good

Over: STREAM

SE OF ARCOLA, Douglas, IL

Built 1968 Load: 28.8 t ADT: 22,700

TR 224

Good

Over: JORDAN SLOUGH

1.4 MI SE LONGVIEW, Douglas, IL

Built 1900 Load: 28.8 t ADT: 25

TR 51

Good

Over: DRAINAGE DITCH

0.8 MI NE OF NEWMAN, Douglas, IL

Built 1975 Load: 28.8 t ADT: 100

LUTZ RD/MS 6100

Good

Over: TRIB TO MAZON RIVER

0.12 MI N/GARDNER RD, Grundy, IL

Built 1997 Load: 28.8 t ADT: 75

HARTER ROAD

Good

Over: WELCH CREEK

0.5 M NW KANEVILLE, Kane, IL

Built 1991 Load: 28.8 t ADT: 3,450

TR 34

Good

Over: W BRANCH HORSE CR

1MI NE UNION HILL, Kankakee, IL

Built 1969 Load: 28.8 t ADT: 75

FAS 348A/CH 1

Good

Over: GOOSEBERRY CR

2 MI W OF CAMPUS, Livingston, IL

Built 1955 Load: 28.8 t ADT: 175

TR 41C

Good

Over: GOOSEBERRY CREEK

2470 E, 2800 N, Livingston, IL

Built 1961 Load: 28.8 t ADT: 25

TR 108A

Good

Over: WOLF CREEK

3 MI NW PONTIAC, Livingston, IL

Built 1963 Load: 28.8 t ADT: 275

TR-65

Good

Over: CREEK

1.2 MI W KINMUNDY, Marion, IL

Built 1969 Load: 28.8 t ADT: 25

Showing 14,851-14,900 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.