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: STREAM

NW-18-T22NR2W, Tazewell, IL

Built 1963 Load: 24.3 t ADT: 75

SPENCER ST

Good

Over: DRAINAGE DITCH

E-29-T26NR4W, Tazewell, IL

Built 1960 Load: 24.3 t ADT: 1,150

TR 54

Good

Over: STREAM

3 MI NW FAIRMOUNT, Vermilion, IL

Built 1900 Load: 24.3 t ADT: 375

TR 175

Good

Over: GIMLET BRANCH

2 MI SE COLLISON, Vermilion, IL

Built 1900 Load: 24.3 t ADT: 50

FAS 1408-CH 17

Good

Over: NEGRO CREEK

SE-21-T9NR2W, Warren, IL

Built 1970 Load: 24.3 t ADT: 250

TR 209

Good

Over: INDIAN CR

NE-24-T9NR1W, Warren, IL

Built 1975 Load: 24.3 t ADT: 75

TR 214

Good

Over: BR OF HENDERSON CR

CTR-22-T12NR1W, Warren, IL

Built 1972 Load: 24.3 t ADT: 50

TR 190

Good

Over: MID HEND CR

SW-4-T12NR1W, Warren, IL

Built 1978 Load: 24.3 t ADT: 50

TR 132

Good

Over: SWAN CREEK

S.CTR-11-T8NR2W, Warren, IL

Built 1971 Load: 24.3 t ADT: 150

TR 134

Good

Over: MIDDLE HENDERSON CR

SW-12-T12NR2W, Warren, IL

Built 1976 Load: 24.3 t ADT: 150

TR 36

Good

Over: SOUTH FORK CREEK

SW-34-T10NR3W, Warren, IL

Built 1977 Load: 24.3 t ADT: 50

TR 59

Good

Over: DAVIDS CR

W.CTR-35-T12NR3W, Warren, IL

Built 1976 Load: 24.3 t ADT: 50

TR 268

Good

Over: BR OF GRAND POINT CR

.25 MI N IRVINGTON, Washington, IL

Built 1969 Load: 24.3 t ADT: 325

CH 12

Good

Over: LITTLE MUD CREEK

3.0 MI S OF ILL RT15, Washington, IL

Built 1978 Load: 24.3 t ADT: 225

EAST SECOND STREET

Good

Over: BRANCH POND CREEK

FAIRFIELD, Wayne, IL

Built 1966 Load: 24.3 t ADT: 150

CH-13

Good

Over: DRAINAGE DITCH

3 MI W CENTERVILLE, White, IL

Built 1933 Load: 24.3 t ADT: 75

FAS-815

Good

Over: DRAINAGE DITCH

2.75 MI E BURNT PRAI, White, IL

Built 1937 Load: 24.3 t ADT: 100

ALLOTT DR

Good

Over: JORDAN CR

1.5 MI E IL 53, Will, IL

Built 1981 Load: 24.3 t ADT: 250

JACKSON BRANCH DRI

Good

Over: JACKSON CR

0.2M S OF LARAWAY RD, Will, IL

Built 1977 Load: 24.3 t ADT: 1,350

FAUS 9629 & 9637

Good

Over: WEST END CREEK

W MAIN & COURT, Williamson, IL

Built 1997 Load: 24.3 t ADT: 19,100

PIERPONT AVE

Good

Over: S. BRANCH KENT CRK.

1.25 MI S OF STATE, Winnebago, IL

Built 1953 Load: 24.3 t ADT: 900

MILFORD AV

Good

Over: DRAINAGEWAY

0.3 MI W OF 11TH ST, Winnebago, IL

Built 1959 Load: 24.3 t ADT: 675

TR 231

Good

Over: MUD CREEK

1250 EAST 500 NORTH, Woodford, IL

Built 1976 Load: 24.3 t ADT: 1,250

GRADE SCHOOL ROAD

Good

Over: N KINNIKINNICK CREEK

8.0 MI NW POPLAR GRO, Boone, IL

Built 1973 Load: 24.6 t ADT: 50

NORTH OAKTON ROAD

Good

Over: TRIBUTARY OF PLUM R

1 MI NE SAVANA, Carroll, IL

Built 1966 Load: 24.6 t ADT: 200

CH 22 (FAS 2495)

Good

Over: DRAINAGE DITCH

1 MI W WEEDMAN, De Witt, IL

Built 1964 Load: 24.6 t ADT: 150

CH 6

Good

Over: DRY FORK

4.6 MI N OF FICKLIN, Douglas, IL

Built 1971 Load: 24.6 t ADT: 25

EGYPTIAN TR.OR 15

Good

Over: SCATTERING FORK

S EDGE OF TUSCOLA, Douglas, IL

Built 1968 Load: 24.6 t ADT: 1,350

TR 5A SEC 26G

Good

Over: HARRIS CREEK

2.25 MI W ST RTE 1, Hardin, IL

Built 1968 Load: 24.6 t ADT: 75

FAS 334 CH 9

Good

Over: TRIB SUGARCREEK

.5N STOCKLAND W 1.75, Iroquois, IL

Built 1975 Load: 24.6 t ADT: 150

TOWNSHIP RD NO 165

Good

Over: RUSH CREEK

4 MI SW STOCKTON, Jo Daviess, IL

Built 1970 Load: 24.6 t ADT: 100

TOWNSHIP RD NO 197

Good

Over: NO FORK PLUM RIV

5 MI SW STOCKTON, Jo Daviess, IL

Built 1967 Load: 24.6 t ADT: 75

CO HWY 29 FAS-352

Good

Over: CREEK

4 MI N OF CORNELL, Livingston, IL

Built 1963 Load: 24.6 t ADT: 150

TR 473

Good

Over: SHERRY CRK.

5 MI W STAUTON, Macoupin, IL

Built 1900 Load: 24.6 t ADT: 175

FAS 435-CH 24

Good

Over: BR TROUBLESOME CREEK

E.CTR-9-T4NR4W, McDonough, IL

Built 1990 Load: 24.6 t ADT: 275

ILL 9

Good

Over: SQUAW CR

0.25 MI E OF FAI 55, McLean, IL

Built 1980 Load: 24.6 t ADT: 17,900

TR 560

Good

Over: STREAM

2.5 MI SE COLFAX, McLean, IL

Built 1971 Load: 24.6 t ADT: 150

TR 203

Good

Over: BR MACKINAW RIVER

1.0 MI S COLFAX, McLean, IL

Built 1963 Load: 24.6 t ADT: 50

TR 385

Good

Over: KICKAPOO CREEK

1.5 MI N DOWNS, McLean, IL

Built 1968 Load: 24.6 t ADT: 75

TR 507

Good

Over: LITTLE KICKAPOO CR

2.0 MI N HEYWORTH, McLean, IL

Built 1964 Load: 24.6 t ADT: 50

TR 203

Good

Over: STREAM

1.0 MI NE LA PLACE, Piatt, IL

Built 1963 Load: 24.6 t ADT: 50

FAS 1930

Good

Over: ALCORN CREEK

2 MI NW HAMLETSBURG, Pope, IL

Built 1957 Load: 24.6 t ADT: 125

WILMINGTONPEOTONE

Good

Over: FORKED CREEK W BR

1.2 MI W CEDAR RD, Will, IL

Built 1985 Load: 24.6 t ADT: 6,050

VETERANS PARKWAY

Good

Over: LILY CACHE CREEK

1.2M NW OF 55, Will, IL

Built 2004 Load: 24.6 t ADT: 17,400

TR-287

Good

Over: FIGLEY CRK

2.6 MI NE COLUMBUS, Adams, IL

Built 1902 Load: 24.9 t ADT: 50

SPRING VALLEY ROAD

Good

Over: EAST FORK CREEK

5 M N OF LANARK, Carroll, IL

Built 1971 Load: 24.9 t ADT: 175

TR 197

Good

Over: SALT FORK VERM RIV

2 MI SW ST JOSEPH, Champaign, IL

Built 1972 Load: 24.9 t ADT: 225

TR-264

Good

Over: E BR GREEN CREEK

4 MI NE EFFINGHAM, Effingham, IL

Built 1976 Load: 24.9 t ADT: 375

TR 454

Good

Over: MUD CREEK

3.5 MI NE KEWANEE, Henry, IL

Built 1968 Load: 24.9 t ADT: 100

TR 42

Good

Over: STREAM

1520 N, 3600 E, Livingston, IL

Built 1972 Load: 24.9 t ADT: 10

Showing 14,601-14,650 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.