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

CO HWY 11

Fair

Over: SWANWICK CREEK

3 MI NE OF WINKLE, Perry, IL

Built 1980 Load: 36.0 t ADT: 175

FAS 534(CH 2)

Fair

Over: MADDEN CREEK

3.5 MI S MANSFIELD, Piatt, IL

Built 1939 Load: 36.0 t ADT: 850

I-74 (EB)

Fair

Over: S BRANCH SALT CREEK

1.5 MI E OF US 54, Piatt, IL

Built 1970 Load: 36.0 t ADT: 10,750

I-74 (WB)

Fair

Over: S BRANCH SALT CREEK

1.5 MI E OF US 54, Piatt, IL

Built 1970 Load: 36.0 t ADT: 10,750

IL 48(FAP 760)

Fair

Over: FRIENDS CREEK DITCH

3 MI N OF I-72, Piatt, IL

Built 1987 Load: 36.0 t ADT: 1,250

FAP 760 (CH 17)

Fair

Over: SANGAMON RIVER

4.3 MI S OF CISCO, Piatt, IL

Built 1978 Load: 36.0 t ADT: 800

IL 106

Fair

Over: THE SNY

3.7M W IL 96/HULL, Pike, IL

Built 1930 Load: 36.0 t ADT: 1,350

I-72

Fair

Over: DRAINAGE DITCH

1.37M E I-172, Pike, IL

Built 1986 Load: 36.0 t ADT: 9,400

TR 95A-SANDUSKY RD

Fair

Over: CACHE RIVER

2 MI SW PULASKI, Pulaski, IL

Built 1994 Load: 36.0 t ADT: 375

ILL 3

Fair

Over: KASKASKIA RIVER

IN EVANSVILLE, Randolph, IL

Built 1971 Load: 36.0 t ADT: 3,350

ILL 92 FAP 599

Fair

Over: MISSISSIPPI RIVER

IN MUSCATINE, Rock Island, IL

Built 1972 Load: 36.0 t ADT: 3,950

I-55 (SB)

Fair

Over: ILLINOIS CENTRAL RR

.3M N IL 54/SANG. AV, Sangamon, IL

Built 1963 Load: 36.0 t ADT: 14,600

ILL 97

Fair

Over: RICHLAND CREEK

2.5M S SALISBURY, Sangamon, IL

Built 1936 Load: 36.0 t ADT: 3,850

ILL 100

Fair

Over: WALNUT CR OVERFLOW

1.5 MI N IL 106, Scott, IL

Built 1984 Load: 36.0 t ADT: 1,000

ILL 9

Fair

Over: MACKINAW RIVER

1.5 MI W OF MACKINAW, Tazewell, IL

Built 1929 Load: 36.0 t ADT: 2,700

FAS 2936 (UNMARKED

Fair

Over: BR. BIGCREEK

DONGOLA, Union, IL

Built 1986 Load: 36.0 t ADT: 1,700

CH 11

Fair

Over: CYPRESS CREEK

3.3 MI S IL 146, Union, IL

Built 1989 Load: 36.0 t ADT: 50

TR 263

Fair

Over: S. FORK OF MUD CREEK

4MI SW OF LIVELY GRV, Washington, IL

Built 1999 Load: 36.0 t ADT: 200

FAP-823 (ILL-15)

Fair

Over: JOHNSON CREEK

ECL FAIRFIELD, Wayne, IL

Built 1982 Load: 36.0 t ADT: 4,850

I-88 EB

Fair

Over: BN RR (ABANDON)

.5 MI S US 30, Whiteside, IL

Built 1972 Load: 36.0 t ADT: 6,600

I-355 NB & SB

Fair

Over: BN&SF RR

1M E OF JOLIET RD, Will, IL

Built 2008 Load: 36.0 t ADT: 39,150

SECOND AVENUE

Fair

Over: HICKORY CREEK

0.5 MI E RICHARD ST, Will, IL

Built 1935 Load: 36.0 t ADT: 1,350

ILL 251 NB

Fair

Over: N KINNIKINNICK CR

0.1 M S HONONEGAH RD, Winnebago, IL

Built 1967 Load: 36.0 t ADT: 27,200

ILL 251 SB

Fair

Over: N KINNIKINNICK CR

0.1 M S HONONEGAH RD, Winnebago, IL

Built 1967 Load: 36.0 t ADT: 27,200

IL 70

Fair

Over: DRAINAGE DITCH

.1 MI N SUMMERDALE, Winnebago, IL

Built 1962 Load: 36.0 t ADT: 5,000

ILL 116

Fair

Over: PANTHER CREEK

1.49 MI E OF IL117, Woodford, IL

Built 1997 Load: 36.0 t ADT: 4,450

TR 165

Fair

Over: PANTHER CREEK

1.25 MI E SECOR, Woodford, IL

Built 1980 Load: 36.0 t ADT: 100

TR 164

Fair

Over: S BR HALLENBACK CR

2 MI W OF ILL 116, Woodford, IL

Built 1989 Load: 36.0 t ADT: 25

CH 10/FAS 782

Fair

Over: TRIB TO SPRING BR

CO HWY 10 OV SPRINGB, Bond, IL

Built 1984 Load: 36.3 t ADT: 350

IDEAL ROAD

Fair

Over: ROCK CREEK

3 MI W MILLEDGEVILLE, Carroll, IL

Built 1974 Load: 36.3 t ADT: 450

I-57(SB)

Fair

Over: Norfolk Southern Railway

SW OF TOLONO, Champaign, IL

Built 1963 Load: 36.3 t ADT: 11,550

FAS 502 (CH 20)

Fair

Over: SPOON RIVER

2.8 MI W OF ROYAL, Champaign, IL

Built 1947 Load: 36.3 t ADT: 1,150

JOHN ST (FAU 7128)

Fair

Over: COPPER SLOUGH

.25 MI W DUNCAN RD, Champaign, IL

Built 1967 Load: 36.3 t ADT: 2,200

WILLIAM ST

Fair

Over: COPPER SLOUGH

.25 MI W DUNCAN RD, Champaign, IL

Built 1966 Load: 36.3 t ADT: 950

TR 189

Fair

Over: BEAR CREEK

2.5MI W TAYLORVILLE, Christian, IL

Built 1969 Load: 36.3 t ADT: 125

TR 106

Fair

Over: BRUSH CREEK

1.8 M E PALMER, Christian, IL

Built 1981 Load: 36.3 t ADT: 50

I- 55 WB STEVENSON

Fair

Over: RR - BRC

0.25 M E ILL 50, Cook, IL

Built 1963 Load: 36.3 t ADT: 67,900

CHICAGO HEIGHTS RD

Fair

Over: BUTTERFIELD CREEK

1.3 M NE of IL 1, Cook, IL

Built 1921 Load: 36.3 t ADT: 6,550

TORRENCE AVE

Fair

Over: RR - CSXT & IHB

0.8 M N IL 83 Sibley, Cook, IL

Built 1956 Load: 36.3 t ADT: 17,800

I-294 SB

Fair

Over: C&NW RR

0.7 M S US 20 P20, Cook, IL

Built 1958 Load: 36.3 t ADT: 75,250

I-294 NB

Fair

Over: C&NW RR

0.7 M S US 20 P20, Cook, IL

Built 1958 Load: 36.3 t ADT: 75,250

I-294 NB

Fair

Over: FLAG CR SOUTH

0.2 M N US 66 P10, Cook, IL

Built 1958 Load: 36.3 t ADT: 59,750

FAS-697 (CH-9)

Fair

Over: CREEK

S NEW HEBRON, Crawford, IL

Built 1909 Load: 36.3 t ADT: 800

IL130(FAP 820)

Fair

Over: EMBARRAS RIVER

0.7 MI S of 700N, Douglas, IL

Built 1955 Load: 36.3 t ADT: 2,000

ARDMORE AVE

Fair

Over: CHICAGO, CENTRAL & P

0.7 M N ST CHARLES R, DuPage, IL

Built 1978 Load: 36.3 t ADT: 7,550

TR-241

Fair

Over: FULFER CREEK

2.5 MI N MASON, Effingham, IL

Built 1991 Load: 36.3 t ADT: 100

TR 24 DIX

Fair

Over: DICKERSON SLOUGH

390N,600E, Ford, IL

Built 1970 Load: 36.3 t ADT: 100

DEPOT RD - TR 110

Fair

Over: BRANCH OF OTTER CR

SE-25-T4NR1E, Fulton, IL

Built 1981 Load: 36.3 t ADT: 25

TR 131

Fair

Over: BEAR CREEK

6.9 M SE OF WHITE HA, Greene, IL

Built 1977 Load: 36.3 t ADT: 25

TR-275

Fair

Over: DRAINAGE DITCH

3.7 MI SW ELDRED, Greene, IL

Built 1981 Load: 36.3 t ADT: 50

Showing 11,101-11,150 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.