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

DAYSVILLE RD

Good

Over: KYTE CREEK

2.0 MI SE OREGON, Ogle, IL

Built 1941 Load: 24.0 t ADT: 2,100

NORTHWEST RD.

Good

Over: BR. LEAF RIVER

5.0 S.W. LEAF RIVER, Ogle, IL

Built 1969 Load: 24.0 t ADT: 25

TR 534

Good

Over: HUNTER SLOUGH

4.0 N LANESVILLE, Sangamon, IL

Built 1979 Load: 24.0 t ADT: 50

NORTH AYP ROAD

Good

Over: BR OF PECATONICA RIV

1.2 MI N OF ILL 20, Stephenson, IL

Built 1965 Load: 24.0 t ADT: 400

S LOST CREEK ROAD

Good

Over: LOST CREEK

7 MI SW FREEPORT, Stephenson, IL

Built 1965 Load: 24.0 t ADT: 50

NORTH FLANSBURG RD

Good

Over: SPRING CREEK

4.5 MI NE OF LENA, Stephenson, IL

Built 1970 Load: 24.0 t ADT: 150

TR 260

Good

Over: STREAM

SW-30-T22NR3W, Tazewell, IL

Built 1970 Load: 24.0 t ADT: 10

FAS-706

Good

Over: LITTLE WABASH RIVER

0.7 MI S WYNOOSE, Wayne, IL

Built 1958 Load: 24.0 t ADT: 150

FAS-2818

Good

Over: PADDY CREEK

0.5 MI N KEENES, Wayne, IL

Built 1965 Load: 24.0 t ADT: 1,000

TR 269

Good

Over: HOLMAN CR

2 MI N QUINCY, Adams, IL

Built 1963 Load: 24.3 t ADT: 775

TR248

Good

Over: MUD CRK

1.0 N LORIANE, Adams, IL

Built 1983 Load: 24.3 t ADT: 75

SOUTH 8TH STREET

Good

Over: CURTIS CREEK

QUINCY, Adams, IL

Built 1899 Load: 24.3 t ADT: 3,000

CH 3/FAS 1747

Good

Over: KINGSBURY LAKE

4.75M NW MULBERRY GR, Bond, IL

Built 1969 Load: 24.3 t ADT: 450

CH 2/FAS 782

Good

Over: BRANCH

2.0 MI W KEYESPORT, Bond, IL

Built 1950 Load: 24.3 t ADT: 850

CH 7

Good

Over: SHOAL CREEK

.50M NW GREENVILLE, Bond, IL

Built 1972 Load: 24.3 t ADT: 400

GARDEN PRAIRIE RD

Good

Over: SPRING CREEK

3.5 MI S GARDEN PRAI, Boone, IL

Built 1958 Load: 24.3 t ADT: 175

N BOONE SCHOOL RD

Good

Over: S. KINNIKINNICK CRK.

3.0 MI N CALEDONIA, Boone, IL

Built 1965 Load: 24.3 t ADT: 100

N BOONE SCHOOL RD

Good

Over: S. KINNIKINNICK CRK.

3.0 MI N CALEDONIA, Boone, IL

Built 1965 Load: 24.3 t ADT: 100

TR 97

Good

Over: LIME CREEK

4 MI S OF OHIO, Bureau, IL

Built 1925 Load: 24.3 t ADT: 25

TR 75

Good

Over: TRIB W POINT CREEK

2.1 M S BATCHTOWN, Calhoun, IL

Built 1901 Load: 24.3 t ADT: 25

FAS 516(CH 9)

Good

Over: UPPER SALT CREEK

LUDLOW RD OVER I-57, Champaign, IL

Built 1969 Load: 24.3 t ADT: 175

TR 121

Good

Over: BEAVER LAKE DRAINAGE

1.3 MI NW LEVERETT, Champaign, IL

Built 1968 Load: 24.3 t ADT: 50

TR 247 A

Good

Over: STREAM

3 MI N SADORUS, Champaign, IL

Built 1975 Load: 24.3 t ADT: 25

TR 228

Good

Over: UPPER SALT CREEK

0.5 MI W LUDLOW, Champaign, IL

Built 1968 Load: 24.3 t ADT: 50

TR 228 A

Good

Over: UPPER SALT CREEK

SW CORNER LUDLOW, Champaign, IL

Built 1968 Load: 24.3 t ADT: 75

BIG BEND ROAD

Good

Over: RIO BUENA VISTA

0.75 MI NW TAYLORVLE, Christian, IL

Built 1900 Load: 24.3 t ADT: 350

TR 10

Good

Over: CLEAR CREEK

1 MI SW SICILY, Christian, IL

Built 2000 Load: 24.3 t ADT: 150

FAS 1658(CH 11)

Good

Over: MARLE CREEK

0.3 MI E ORANGE, Clark, IL

Built 1909 Load: 24.3 t ADT: 100

FAS-2705 (CH-4)

Good

Over: BIG MUDDY CREEK

3 MI S INGERHAM, Clay, IL

Built 1940 Load: 24.3 t ADT: 250

TR 212/HAHN ROAD

Good

Over: COLES CREEK

3 MI NE OF SHATTUC, Clinton, IL

Built 1972 Load: 24.3 t ADT: 25

TR 116

Good

Over: CROCKER BRANCH

2.5 MI. E. BARTELSO, Clinton, IL

Built 1972 Load: 24.3 t ADT: 75

14TH ST(FAU 7649)

Good

Over: TOWN BRANCH CREEK

CHARLESTON-HARRISON, Coles, IL

Built 1909 Load: 24.3 t ADT: 375

W. IMPERIAL CT.

Good

Over: SALT CREEK

420' W OF BOTHWELL, Cook, IL

Built 1966 Load: 24.3 t ADT: 200

KENILWORTH AVE

Good

Over: SALT CR E BR

0.2 M S PALTN RD P18, Cook, IL

Built 1968 Load: 24.3 t ADT: 175

INDIANA AVENUE

Good

Over: CAL.UNION DRAIN DTCH

0.1 MI.N.OF US 6, Cook, IL

Built 1985 Load: 24.3 t ADT: 14,100

FAS-1697 (CH-9)

Good

Over: SUGAR CREEK

2 MI W FLAT ROCK, Crawford, IL

Built 1964 Load: 24.3 t ADT: 550

CH-21

Good

Over: CREEK

2 MI NW VILLAS, Crawford, IL

Built 1938 Load: 24.3 t ADT: 125

CH-4

Good

Over: LAMOTTE CREEK

1.25 MI SW PALESTINE, Crawford, IL

Built 1971 Load: 24.3 t ADT: 200

TR-139

Good

Over: CREEK

2 MI SW TRIMBLE, Crawford, IL

Built 1973 Load: 24.3 t ADT: 20

TR-202

Good

Over: TRIB SUGAR CREEK

2.5 MI SW TRIMBLE, Crawford, IL

Built 1909 Load: 24.3 t ADT: 500

MAIN STREET

Good

Over: CREEK

FLATROCK, Crawford, IL

Built 1975 Load: 24.3 t ADT: 125

MACON TR 1 A

Good

Over: DRAINAGE DITCH

4.6 MI S OF LANE, De Witt, IL

Built 1941 Load: 24.3 t ADT: 75

FAS 522(CH 6)

Good

Over: STREAM

1.5 MI E VILLA GROVE, Douglas, IL

Built 1932 Load: 24.3 t ADT: 650

CH 18

Good

Over: JORDAN SLOUGH

1.4 MI SE FAIRLAND, Douglas, IL

Built 1964 Load: 24.3 t ADT: 275

TR 57

Good

Over: DRAINAGE DITCH

0.1 MI W OF MURDOCK, Douglas, IL

Built 1900 Load: 24.3 t ADT: 50

TR 39

Good

Over: TRIB TO BRUSHY CREEK

.05 MI W OF IL 49, Douglas, IL

Built 1973 Load: 24.3 t ADT: 50

WASHINGTON ST(MS72

Good

Over: SCATTERING FORK

IN TUSCOLA, Douglas, IL

Built 1953 Load: 24.3 t ADT: 650

FAS 663(PRAIRIE ST

Good

Over: HAYES BRANCH

IN TUSCOLA, Douglas, IL

Built 1965 Load: 24.3 t ADT: 2,650

CH 17(FAS 1679)

Good

Over: SNAKE CREEK

0.06 MI E OF US 150, Edgar, IL

Built 1973 Load: 24.3 t ADT: 175

TR 2

Good

Over: WATERWAY

1.25 MI NW OF KANSAS, Edgar, IL

Built 1976 Load: 24.3 t ADT: 25

Showing 14,451-14,500 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.