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 210

Poor

Over: WALNUT CREEK

N1/2-17-T13NR3E, Knox, IL

Built 1900 Load: 17.5 t ADT: 50

PARK AVE (W)

Poor

Over: SKOKIE DITCH

.2 M E 41, Lake, IL

Built 1950 Load: 17.5 t ADT: 6,150

CH-5

Poor

Over: BRUSHY FORK

1 MI W PINKSTAFF, Lawrence, IL

Built 1971 Load: 17.5 t ADT: 175

MORGAN RD

Poor

Over: DRAINAGE DITCH

0.2 MI S MAYTOWN RD, Lee, IL

Built 1978 Load: 17.5 t ADT: 100

TR201 BEEMERVILLE

Poor

Over: UNNAMED STREAM

3 MI NE COMPTON, Lee, IL

Built 1977 Load: 17.5 t ADT: 125

TR 18B

Poor

Over: SCATTERING POINT

1585 N, 400 E, Livingston, IL

Built 1960 Load: 17.5 t ADT: 275

ZILLES RD/ TR 392

Poor

Over: TRIB TO SPANKER BR

4.5MI SE HIGHLAND, Madison, IL

Built 1925 Load: 17.5 t ADT: 150

TR 115 (HARRIS LAN

Poor

Over: W FORK WOOD RIVER CK

1.5 MI N ALTON, Madison, IL

Built 1990 Load: 17.5 t ADT: 1,100

TR 171

Poor

Over: SKILLET FORK

4 MI NE IUKA, Marion, IL

Built 1976 Load: 17.5 t ADT: 25

CH-26 (FAS-441)

Poor

Over: GRINDSTONE CREEK

NW-32-T4NR3W, McDonough, IL

Built 1940 Load: 17.5 t ADT: 150

TR 477

Poor

Over: TRIB SUGAR CR

E.CTR-33-T4NR1W, McDonough, IL

Built 1915 Load: 17.5 t ADT: 10

FAS 1571

Poor

Over: PIKE CREEK

5 MI E GREENVIEW, Menard, IL

Built 1957 Load: 17.5 t ADT: 50

TR 14

Poor

Over: DRAINAGE DITCH

1.0 MI N OAKFORD, Menard, IL

Built 1978 Load: 17.5 t ADT: 25

LIMEKILN ROAD

Poor

Over: MUD CREEK

3 MI E MT MORRIS, Ogle, IL

Built 1981 Load: 17.5 t ADT: 250

TR 191

Poor

Over: BRUSHY CREEK

2.5 NE OF ELKTON, Washington, IL

Built 1968 Load: 17.5 t ADT: 25

I- 55 WEST FRNT RD

Poor

Over: SUNNYLAND DRAIN

1.8 M S OF US 30, Will, IL

Built 1959 Load: 17.5 t ADT: 400

GLEASMAN ROAD

Poor

Over: UNNAMED CREEK

0.2 MI E ROCKTON AVE, Winnebago, IL

Built 1935 Load: 17.5 t ADT: 800

TR 202

Poor

Over: W. BUREAU CREEK

6.5 MI SE OF WALNUT, Bureau, IL

Built 1915 Load: 17.8 t ADT: 25

JEFFERSON STREET

Poor

Over: ROCKY RUN CREEK

W CENTER OF TISKILWA, Bureau, IL

Built 1925 Load: 17.8 t ADT: 125

TR-66 (Mill Road)

Poor

Over: BNSF RR

2 MI NE ARGO FAY, Carroll, IL

Built 1920 Load: 17.8 t ADT: 50

FAS 1577

Poor

Over: COX CREEK

1.5 MI WSW NEWMANSV., Cass, IL

Built 1982 Load: 17.8 t ADT: 425

TR 216

Poor

Over: OSBERN BRANCH

3MI SE MT.AUBURN, Christian, IL

Built 1954 Load: 17.8 t ADT: 20

TR 137A

Poor

Over: PRAIRIE CREEK

1 MI SE HUEY, Clinton, IL

Built 1942 Load: 17.8 t ADT: 100

TR-165

Poor

Over: N FK EMBARRAS RIVER

1.5 MI W OBLONG, Crawford, IL

Built 1909 Load: 17.8 t ADT: 50

WHEELER RD

Poor

Over: TRIMBLE RUN

3550N 140E, DeKalb, IL

Built 1964 Load: 17.8 t ADT: 175

TOOT PL LN - TR 40

Poor

Over: STREAM

SE-32-T5NR3E, Fulton, IL

Built 1979 Load: 17.8 t ADT: 50

ILL 100

Poor

Over: DRAINS TO EAGLE LAKE

5.5N GRAFTON, Jersey, IL

Built 1938 Load: 17.8 t ADT: 775

FAS-801

Poor

Over: MAD CREEK

1 MI E CHAUNCEY, Lawrence, IL

Built 1973 Load: 17.8 t ADT: 325

TR 30A(STRAWN RD)

Poor

Over: SOUTH FORK CREEK

3.9 MI NW WARRENSBUR, Macon, IL

Built 1909 Load: 17.8 t ADT: 25

TR 66(BAKER RD)

Poor

Over: MOSQUITO CREEK

1.6 MI SE OF BOODY, Macon, IL

Built 1957 Load: 17.8 t ADT: 50

FROHLING RD

Poor

Over: S BR KISHWAUKEE

1.1 MI SE OF SEEMANN, McHenry, IL

Built 1978 Load: 17.8 t ADT: 325

OAK GROVE RD.

Poor

Over: BR OF MIDDLE CRK

3.8 N. W. BYRON, Ogle, IL

Built 1967 Load: 17.8 t ADT: 25

FAP 64 WB Adams S

Poor

Over: BNSF & Abandoned UP RR

W CL OF PEORIA, Peoria, IL

Built 1936 Load: 17.8 t ADT: 18,000

AKRON ROAD

Poor

Over: BR KICKAPOO CREEK

NW-35-T11NR7E, Peoria, IL

Built 1957 Load: 17.8 t ADT: 275

IL 96

Poor

Over: LEVEE

.3M SE US 54-ATLAS, Pike, IL

Built 1956 Load: 17.8 t ADT: 1,200

TR 291

Poor

Over: BR POND CREEK

4.00 MI S CARRIER M, Saline, IL

Built 1987 Load: 17.8 t ADT: 10

IL 8/ IL 116

Poor

Over: ILLINOIS RIV, BNSF, T&P

CEDAR ST AT PEORIA, Tazewell, IL

Built 1932 Load: 17.8 t ADT: 12,400

FAS 1481-CH 7

Poor

Over: PRAIRIE CREEK

N.CTR-4-T23NR3W, Tazewell, IL

Built 1959 Load: 17.8 t ADT: 1,650

TR 190

Poor

Over: STREAM

N.CTR-29-T26NR3W, Tazewell, IL

Built 1966 Load: 17.8 t ADT: 1,800

TR 13

Poor

Over: WHISKY CREEK BRANCH

2 MI SE RANKIN, Vermilion, IL

Built 1968 Load: 17.8 t ADT: 20

2ND STREET

Poor

Over: DIEHL CREEK

MORRISONVILLE, Christian, IL

Built 1930 Load: 18.1 t ADT: 50

TR 3 A-CUMB CO

Poor

Over: BUTTERMILK DITCH

PARADISE, Coles, IL

Built 1981 Load: 18.1 t ADT: 50

SBI-163

Poor

Over: SUGAR CREEK

.25 MI NE PALESTINE, Crawford, IL

Built 1937 Load: 18.1 t ADT: 20

TR 306

Poor

Over: FLOUR CREEK

2.0 MI W AUGUSTA, Hancock, IL

Built 1969 Load: 18.1 t ADT: 50

TR 217

Poor

Over: SPRING CR

2 MI E ONARGA, Iroquois, IL

Built 1965 Load: 18.1 t ADT: 75

TR 2E

Poor

Over: STREAM

1 MI W OF AMBIA IND., Iroquois, IL

Built 1914 Load: 18.1 t ADT: 50

MC NULTY ROAD

Poor

Over: VIRGIL DR DITCH NO.1

1.5 MI E MAPLE PARK, Kane, IL

Built 1962 Load: 18.1 t ADT: 100

TR 491

Poor

Over: DRAINAGE DITCH

N 18TH E 560, LaSalle, IL

Built 1967 Load: 18.1 t ADT: 150

FAI 270 EB

Poor

Over: COUNTY DITCH

1.03mi W. of IL 157, Madison, IL

Built 1963 Load: 18.1 t ADT: 24,900

ADAMS STREET

Poor

Over: BRANCH MONEY CREEK

SE QUAD OF TOWANDA, McLean, IL

Built 1938 Load: 18.1 t ADT: 100

Showing 26,051-26,100 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.