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

EB I-74

Unknown

Over: N MAIN STREET

N MAIN ST IN MORTON, Tazewell, IL

Built 1960 ADT: 6,450

WB I-74

Unknown

Over: N MAIN STREET

N MAIN ST IN MORTON, Tazewell, IL

Built 1960 ADT: 6,450

IL 8/ IL 116

Unknown

Over: RICHLAND ST.

CEDAR ST EXTENSION, Tazewell, IL

Built 1966 ADT: 2,150

IL 8/ IL 116

Unknown

Over: EDMUND ST

CEDAR ST EXTENSION, Tazewell, IL

Built 1966 ADT: 4,300

IL 8/ IL 116

Unknown

Over: CENTER STREET

CEDAR ST EXTENSION, Tazewell, IL

Built 1962 ADT: 1,350

IL 8/ IL 116

Unknown

Over: US 24/ IL 29

CEDAR ST EXT E PEO, Tazewell, IL

Built 1963 ADT: 26,200

US 150- MEADOWS AV

Unknown

Over: FARM CR TPW RR, NS RR

MEADOWS AVE E. PEO., Tazewell, IL

Built 1935 ADT: 150

RIVERFRONT DR

Unknown

Over: CAMP ST

N CAMP ST, E PEORIA, Tazewell, IL

Built 1959 ADT: 13,200

RIVERFRONT DR

Unknown

Over: WEST WASHINGTON ST

.5 MI SW OF I-74, Tazewell, IL

Built 1958 ADT: 9,650

RAMP FR ILL116 TO1

Unknown

Over: ILL 116

INTERCHANGE, Tazewell, IL

Built 1964 ADT: 21,200

EB US 24

Unknown

Over: ILL 116

INTERCHANGE 24&116, Tazewell, IL

Built 1962 ADT: 20,400

WB US 24

Unknown

Over: ILL 116

INTERCHANGE RT24&116, Tazewell, IL

Built 1962 ADT: 21,200

EB US 24

Unknown

Over: RAMP FR ILL116 TO150

.75mi E McClugage Br, Tazewell, IL

Built 1961 ADT: 3,500

WB US 24

Unknown

Over: RAMP FR IL116 TO 150

.75mi E McClugage Br, Tazewell, IL

Built 1961 ADT: 3,500

FAS 2467 - CH 3

Unknown

Over: I-74

1.5 MI E OF MORTON, Tazewell, IL

Built 1960 ADT: 26,200

FAS 470 - CH 6

Unknown

Over: I-74

SW OF DEER CREEK, Tazewell, IL

Built 1960 ADT: 26,200

TENNESSEE RD-TR234

Unknown

Over: I-74

EAST EDGE OF MORTON, Tazewell, IL

Built 1960 ADT: 26,200

FONDULAC DR

Unknown

Over: I-74

JUST E ILL-116 INTER, Tazewell, IL

Built 1958 ADT: 40,800

ILL 122

Unknown

Over: I-155

2 MI W OF HOPEDALE, Tazewell, IL

Built 1971 ADT: 13,800

TOBOGGAN AVE-FAS 4

Unknown

Over: I-155

1M S OF HOPEDALE, Tazewell, IL

Built 1972 ADT: 11,800

WB I-474

Unknown

Over: EB I-74

2 MI W OF MORTON, Tazewell, IL

Built 1979 ADT: 38,200

FAU 6720 (PINECRES

Unknown

Over: I-474

NEAR CTR 10 GROVELND, Tazewell, IL

Built 1979 ADT: 15,200

SPFLD RD FAU 6719

Unknown

Over: I-474

.3 MI N OF MULLER RD, Tazewell, IL

Built 1972 ADT: 15,200

COLE ST

Unknown

Over: I-474

0.25 MI N MULLER RD, Tazewell, IL

Built 1972 ADT: 15,200

EB I-474

Unknown

Over: ILL 29

S. EDGE OF CR COEUR, Tazewell, IL

Built 1978 ADT: 27,800

WB I-474

Unknown

Over: ILL 29

S EDGE OF CREVE COEU, Tazewell, IL

Built 1978 ADT: 20,400

EB I-474

Unknown

Over: ILLINOIS RIVER, T&P RR

SW OF CREVE COEUR, Tazewell, IL

Built 1975 ADT: 300

WB I-474

Unknown

Over: ILLINOIS RIVER, T&P RR

SW OF CREVE COEUR, Tazewell, IL

Built 1975 ADT: 300

ILL 9

Unknown

Over: ILLINOIS RIVER, T&P RR

ILL RIVER AT PEKIN, Tazewell, IL

Built 1982 ADT: 200

Pleasant Hill Road

Unknown

Over: I-74

1.5 MI W OF I-155, Tazewell, IL

Built 1980 ADT: 52,900

Muller Road

Unknown

Over: I-74

1 MI W OF I-155, Tazewell, IL

Built 1980 ADT: 52,900

I-474 RP# 461

Unknown

Over: WB I-474

3 MI NW OF MORTON, Tazewell, IL

Built 1980 ADT: 14,200

I-474 RP# 461

Unknown

Over: I-74

3.5 MI E OF E. PEO., Tazewell, IL

Built 1980 ADT: 38,200

IL 40

Unknown

Over: IL RIV,WASH.ST, T&P RR

Bob Michel Bridge, Tazewell, IL

Built 1993 ADT: 6,250

IL8 EB TO US24 WB

Unknown

Over: US 24

0.5 MI E. GRANGE RD, Tazewell, IL

Built 1988 ADT: 15,900

SB I-155

Unknown

Over: IL 98

1.2 MI S OF I-74, Tazewell, IL

Built 1989 ADT: 6,850

NB I-155

Unknown

Over: IL 98

1.2 MI S OF I-74, Tazewell, IL

Built 1988 ADT: 8,200

QUEENWOOD RD

Unknown

Over: I-155

1 MI S OF ILL 98, Tazewell, IL

Built 1992 ADT: 19,600

SB MAIN ST

Unknown

Over: I-155

1.6 MI S OF IL 98, Tazewell, IL

Built 1990 ADT: 16,800

BROADWAY

Unknown

Over: I-155

2.5 MI S OF IL 98, Tazewell, IL

Built 1990 ADT: 21,000

ALLENTOWN RD

Unknown

Over: I-155

2 MI N OF ILL 9, Tazewell, IL

Built 1992 ADT: 18,300

SB I-155

Unknown

Over: ILL 9

5.6 MI S OF IL 98, Tazewell, IL

Built 1990 ADT: 7,800

NB I-155

Unknown

Over: ILL 9

5.6 MI S OF IL 98, Tazewell, IL

Built 1990 ADT: 5,250

TOWNLINE RD-CH 7

Unknown

Over: I-155

3 MI S OF IL 9, Tazewell, IL

Built 1992 ADT: 15,100

FEATHER RD - FAS 4

Unknown

Over: I-155

4.9 MI S OF ILL 9, Tazewell, IL

Built 1990 ADT: 13,800

ILL 122

Unknown

Over: I-155

S. INTERCHGE IL 122, Tazewell, IL

Built 1992 ADT: 11,800

ARMINGTON RD-CH 8

Unknown

Over: I-155

3 MI S OF ILL 122, Tazewell, IL

Built 1992 ADT: 75

MORTONAVE-FAU6729

Unknown

Over: I-74

MORTON INTERCHANGE, Tazewell, IL

Built 1994 ADT: 26,200

Ramp H-4 to WB I-7

Unknown

Over: I-74

EAST PEORIA, Tazewell, IL

Built 2004 ADT: 64,700

I74 RP 1.05(H-3)

Unknown

Over: I74, RMPS H-1,4 DIVR CHA

EAST PEORIA, Tazewell, IL

Built 2004 ADT: 57,000

Showing 3,551-3,600 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.