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

CH-2

Fair

Over: RACCOON CREEK

4.5 MI E HELENA, Lawrence, IL

Built 1965 Load: 27.9 t ADT: 200

CH 19 MORGAN RD

Fair

Over: GREEN RIVER

1.6 MI S AMBOY RD, Lee, IL

Built 1958 Load: 27.9 t ADT: 275

CH11 PUMP FACTORY

Fair

Over: FIVE MILE BRANCH TRI

1.8 MI S OF US 30, Lee, IL

Built 1959 Load: 27.9 t ADT: 125

FAS 1362 CH 8

Fair

Over: PIKE CREEK

3.0 MI W OCOYA, Livingston, IL

Built 1953 Load: 27.9 t ADT: 400

TR 95

Fair

Over: TRIB SHORT POINT CR

535 E, 2200 N, Livingston, IL

Built 1927 Load: 27.9 t ADT: 25

TR 107

Fair

Over: DITCH MOLE

185 E, 2100 N, Livingston, IL

Built 1930 Load: 27.9 t ADT: 50

TR 132

Fair

Over: DITCH

1305 N, 1700 E, Livingston, IL

Built 1965 Load: 27.9 t ADT: 50

I-55 W Frontage Rd

Fair

Over: UPRR

N OF NEW DOUGLAS RD, Madison, IL

Built 1939 Load: 27.9 t ADT: 150

TR 171

Fair

Over: SW MASON CITY DITCH

1.5M SW MASON CITY, Mason, IL

Built 1983 Load: 27.9 t ADT: 175

TR 136A

Fair

Over: N HENDERSON CR

SW-20-T13NR3W, Mercer, IL

Built 1974 Load: 27.9 t ADT: 25

TR 169

Fair

Over: SPRING CRK

3 NE OF ALEXANDER, Morgan, IL

Built 1961 Load: 27.9 t ADT: 75

TR 314

Fair

Over: TERRE CRK.

4.5 MI N W ALEXANDER, Morgan, IL

Built 1958 Load: 27.9 t ADT: 75

US 51

Fair

Over: HALF-MILE CREEK

S OF ILL 14, Perry, IL

Built 1921 Load: 27.9 t ADT: 6,350

TR 195

Fair

Over: LAKE FORK

2.5 MI NW OF ATWOOD, Piatt, IL

Built 1959 Load: 27.9 t ADT: 75

TR 45

Fair

Over: GRAND PIERRE CREEK TRIB

NW1/4 S8T12SR7E, Pope, IL

Built 1989 Load: 27.9 t ADT: 29

0270 0 6145

Fair

Over: SUGAR CREEK

1.70 MI. S AUBURN, Sangamon, IL

Built 1969 Load: 27.9 t ADT: 1,200

TR 298

Fair

Over: BRUSH CREEK

2.0 MI E OF DIVERNON, Sangamon, IL

Built 1971 Load: 27.9 t ADT: 100

FAP 774 (ILL 128)

Fair

Over: STREAM

2 MI N OF COWDEN, Shelby, IL

Built 1928 Load: 27.9 t ADT: 2,500

TR 60

Fair

Over: STREAM

3 MI NW OFTOWER HILL, Shelby, IL

Built 1909 Load: 27.9 t ADT: 50

FARWELL BR. RD.

Fair

Over: PINK CREEK

3.5 MI NE RIDOTT, Stephenson, IL

Built 1971 Load: 27.9 t ADT: 350

SO WALNUT ROAD

Fair

Over: CRANES GROVE CREEK

2.0 MI S FREEPORT, Stephenson, IL

Built 1970 Load: 27.9 t ADT: 50

N HENDERSON ROAD

Fair

Over: BRUSH CREEK

1.5 MI SE ORANGEVILL, Stephenson, IL

Built 1957 Load: 27.9 t ADT: 125

WAGONSELLER RD-TR6

Fair

Over: MACKINAW RIVER

N.CTR-17-T23NR5W, Tazewell, IL

Built 1961 Load: 27.9 t ADT: 900

NICHOLS RD - TR 25

Fair

Over: DRAINAGE DITCH

SE COR-2-T22NR5W, Tazewell, IL

Built 1900 Load: 27.9 t ADT: 50

TR 19

Fair

Over: CREEK

1.1M NW JCT.FAS 1911, Union, IL

Built 1982 Load: 27.9 t ADT: 100

FAS 1343(CH 41)

Fair

Over: N FORK VERMILION RIV

N OF CHENEYVILLE, Vermilion, IL

Built 1955 Load: 27.9 t ADT: 175

FAS-809

Fair

Over: STREAM

0.25 MI N FRIENDSVIL, Wabash, IL

Built 1932 Load: 27.9 t ADT: 1,000

TR-328

Fair

Over: CAMEL CREEK

0.5 MI NW RINARD, Wayne, IL

Built 1909 Load: 27.9 t ADT: 100

SAND ROAD

Fair

Over: SPRING CREEK

2.25 MI NW OF ERIE, Whiteside, IL

Built 1964 Load: 27.9 t ADT: 400

SHIRLEY ROAD

Fair

Over: BR S BR KISHWAUKEE R

0.5 MI N EDSON ROAD, Winnebago, IL

Built 1963 Load: 27.9 t ADT: 75

WEMPLETOWN ROAD

Fair

Over: N FORK KENT CREEK

0.8 MI N AUBURN ROAD, Winnebago, IL

Built 1970 Load: 27.9 t ADT: 75

TR 103

Fair

Over: PANTHER CR

1.5 N PANOLA, Woodford, IL

Built 1959 Load: 27.9 t ADT: 75

FAI 57

Fair

Over: MISSISSIPPI RIVER

I-57 AT CAIRO, Alexander, IL

Built 1978 Load: 28.2 t ADT: 13,700

CH 7

Fair

Over: MCKEE CREEK

2 MI W VERSAILLES, Brown, IL

Built 1968 Load: 28.2 t ADT: 250

FAS 575

Fair

Over: CLARY CREEK

6 MI N NEWMANSVILLE, Cass, IL

Built 1958 Load: 28.2 t ADT: 600

FAP 326 (IL 47)

Fair

Over: CAMP CREEK

1 MI N I-72 INT, Champaign, IL

Built 1933 Load: 28.2 t ADT: 4,800

TR 236

Fair

Over: STREAM

1.7 MI NW SIDNEY, Champaign, IL

Built 1974 Load: 28.2 t ADT: 100

TR 173

Fair

Over: BRUSHY BR.

5MI S STONINGTON, Christian, IL

Built 1951 Load: 28.2 t ADT: 20

TR 263

Fair

Over: OPPOSSUM CK.

2.5 MI SW OF PANA, Christian, IL

Built 1895 Load: 28.2 t ADT: 50

TR 92

Fair

Over: STREAM

2 MI NW WAPELLA, De Witt, IL

Built 1969 Load: 28.2 t ADT: 50

TR 14

Fair

Over: STREAM

6.5 MI S WAYNESVILLE, De Witt, IL

Built 1974 Load: 28.2 t ADT: 25

TR 171

Fair

Over: STREAM

1 MI SE MIDLAND CITY, De Witt, IL

Built 1975 Load: 28.2 t ADT: 75

TR 29

Fair

Over: STREAM

1 MI NE FARMER CITY, De Witt, IL

Built 1975 Load: 28.2 t ADT: 300

CH19 PIPER THAWVIL

Fair

Over: N FK VERMILION R

2110N,1700E, Ford, IL

Built 1959 Load: 28.2 t ADT: 50

TR 91A BUTTON

Fair

Over: STREAM

2770E,500N, Ford, IL

Built 1968 Load: 28.2 t ADT: 75

FAS 740 CH 6

Fair

Over: BEAR CREEK

950N;1600E, Greene, IL

Built 2006 Load: 28.2 t ADT: 250

TR 239

Fair

Over: W FK OF BEAR CREEK

1.5 S ELVASTON, Hancock, IL

Built 1975 Load: 28.2 t ADT: 50

FAS 1425

Fair

Over: CAMP CREEK

1.5 SW COLUSA, Hancock, IL

Built 1970 Load: 28.2 t ADT: 20

ULAH ROAD

Fair

Over: EDWARDS RIVER

1.2 MI S JCT ILL 81, Henry, IL

Built 1933 Load: 28.2 t ADT: 150

TR 210

Fair

Over: DRAINAGE DITCH

.5 MI N. CH 7, Iroquois, IL

Built 1916 Load: 28.2 t ADT: 75

Showing 6,351-6,400 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.