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

ST ROSE ROAD-FAS 7

Unknown

Over: US 50

7 MI E OF TRENTON, Clinton, IL

Built 1973 ADT: 6,100

TR 90 FROGTOWN RD

Unknown

Over: US 50

6 MI W OF CARLYLE, Clinton, IL

Built 1974 ADT: 5,500

FLAT BRANCH RD-TR1

Unknown

Over: US 50

1.5 MI W OF CARLYLE, Clinton, IL

Built 1973 ADT: 5,150

ILL 160

Unknown

Over: US 50

N SIDE OF TRENTON, Clinton, IL

Built 1980 ADT: 7,650

US 50 EB

Unknown

Over: CH 11-N WALNUT ST

AT BREESE, Clinton, IL

Built 1985 ADT: 6,050

US 50 WB

Unknown

Over: CH 11-N WALNUT ST

AT BREESE, Clinton, IL

Built 1985 ADT: 6,050

B&O RR

Unknown

Over: TR 137

E FISH HATCHERY, Clinton, IL

Built 1900 ADT: 300

I-57 (NB)

Unknown

Over: US 45(FAP 824)

S OF MATTOON, Coles, IL

Built 1965 ADT: 7,000

I-57 (SB)

Unknown

Over: US 45(FAP 824)

S OF MATTOON, Coles, IL

Built 1965 ADT: 7,000

I-57 (SB)

Unknown

Over: Central Grain RR & TR 86

JONES SWITCH, Coles, IL

Built 1965 ADT: 225

I-57 (NB)

Unknown

Over: Central Grain RR & TR 86

JONES SWITCH, Coles, IL

Built 1965 ADT: 225

I-57 (NB)

Unknown

Over: IL 16 (FAP 91)

E MATTOON, Coles, IL

Built 1963 ADT: 15,900

I-57 (SB)

Unknown

Over: IL 16 (FAP 325)

E MATTOON, Coles, IL

Built 1963 ADT: 15,800

TR 223

Unknown

Over: I-57

1.0 MI E OF US 45, Coles, IL

Built 1964 ADT: 19,800

FAU 7702(CH 7)

Unknown

Over: KICKAPOO CR & I-57

COUNTRY CB RD S 16, Coles, IL

Built 1965 ADT: 19,800

CH 16(FAS 1672)

Unknown

Over: I-57

E OF HUMBOLDT, Coles, IL

Built 1967 ADT: 22,700

FAS 1605(CH 11)

Unknown

Over: I-57

1.0 MI N CUMB CO LN, Coles, IL

Built 1964 ADT: 18,900

CH 22

Unknown

Over: I-57

2 MI N EXIT 192, Coles, IL

Built 1965 ADT: 22,700

TR 23

Unknown

Over: I-57

2.0 MI S OF DOUGLAS, Coles, IL

Built 1967 ADT: 22,700

TR 69

Unknown

Over: I-57

1.0 MI S HUMBOLDT, Coles, IL

Built 1967 ADT: 22,700

TR 70 A

Unknown

Over: I-57

2.0 MI E OF US 45, Coles, IL

Built 1965 ADT: 19,800

TR 119B

Unknown

Over: I-57

3.5 MI N OF IL 16, Coles, IL

Built 1966 ADT: 22,700

TR 141

Unknown

Over: I-57

1.5 MI N OF IL 16, Coles, IL

Built 1966 ADT: 21,000

TR 245(FAS 1667)

Unknown

Over: I-57

1.5 MI SW OF US 45, Coles, IL

Built 1964 ADT: 18,900

I-57 (NB)

Unknown

Over: SBI 16(FAU 7666)

0.5 MI N OF IL 16, Coles, IL

Built 1965 ADT: 3,350

I-57 (SB)

Unknown

Over: SBI 16(FAU 7666)

0.5 MI N OF IL 16, Coles, IL

Built 1965 ADT: 3,350

TR 13

Unknown

Over: I-57

DOUGLAS CO LN, Coles, IL

Built 1966 ADT: 22,700

FAU 7706

Unknown

Over: I-57

2.6 MI. N. IL.16, Coles, IL

Built 2006 ADT: 22,700

IC RR

Unknown

Over: FAS 1605

AT ETNA, Coles, IL

Built 1900 ADT: 600

EI RR

Unknown

Over: TR 263

2 MI SW OF LERNA, Coles, IL

Built 1900 ADT: 50

FAU 7706

Unknown

Over: US 45 & R.R.

2.3 MILE N MATTOON, Coles, IL

Built 2007 ADT: 3,400

NICKEL PLATE RR

Unknown

Over: SBI 16(FAU 7619)

STATE AVE-CHARLESTON, Coles, IL

Built 1935 ADT: 6,400

PC RR (ABANDONED)

Unknown

Over: TR 228

2.5 MI NE CHARLESTON, Coles, IL

Built 1900 ADT: 100

I- 55 WB

Unknown

Over: JOLIET RD EB

2.1 M SW US 45, Cook, IL

Built 1962 ADT: 11,800

I- 55 STEVENSON

Unknown

Over: WOLF RD & FLAG CR

1.5 M W US 45, Cook, IL

Built 1963 ADT: 9,850

I- 55 EB STEVENSON

Unknown

Over: SANTA FE DR

0.4 M E US 45, Cook, IL

Built 1963 ADT: 5,800

I- 55 WB STEVENSON

Unknown

Over: SANTA FE DR

0.4 M E US 45, Cook, IL

Built 1963 ADT: 5,800

I- 55 EB STEVENSON

Unknown

Over: SAN & SHIP CANAL

0.9 M SW ILL 43, Cook, IL

Built 1964 ADT: 200

I- 55 WB STEVENSON

Unknown

Over: SAN & SHIP CANAL

0.9 M SW ILL 43, Cook, IL

Built 1964 ADT: 200

I- 55 EB STEVENSON

Unknown

Over: IL 50 (CICERO AVE)

5.7 M SW I94, Cook, IL

Built 1963 ADT: 50,400

I- 55 WB STEVENSON

Unknown

Over: IL 50 (CICERO AVE)

5.7 M SW I94, Cook, IL

Built 1963 ADT: 50,400

RR - BNSF WEST BR

Unknown

Over: I- 55 STEVENSON

1.5 M NE ILL 50, Cook, IL

Built 1963 ADT: 173,600

RR - BNSF EAST BR

Unknown

Over: I- 55 STEVENSON

1.55 M NE ILL 50, Cook, IL

Built 1963 ADT: 173,600

I- 55 EB STEVENSON

Unknown

Over: KEDZIE AVE

2 M NE ILL 50, Cook, IL

Built 1963 ADT: 22,000

I- 55 WB STEVENSON

Unknown

Over: KEDZIE AVE

2 M NE ILL 50, Cook, IL

Built 1963 ADT: 22,000

I- 55 EB STEVENSON

Unknown

Over: CALIFORNIA AVE

3 M SW DAN RYAN, Cook, IL

Built 1963 ADT: 15,900

I- 55 WB STEVENSON

Unknown

Over: CALIFORNIA AVE

3 M SW DAN RYAN, Cook, IL

Built 1963 ADT: 15,900

I- 55 WB STEVENSON

Unknown

Over: WESTERN AVE VIADUCT

2.5 M SW DAN RYAN, Cook, IL

Built 1963 ADT: 24,800

I- 55 WB STEVENSON

Unknown

Over: LOCK ST

1.1 M SW I94, Cook, IL

Built 1963 ADT: 10

I- 55 EB STEVENSON

Unknown

Over: LOCK ST

1.1 M SW I94, Cook, IL

Built 1963 ADT: 10

Showing 251-300 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.