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

FAS 644(CH 55)

Poor

Over: OVERFLOW SANGAMON R

3 MI S OF NIANTIC, Macon, IL

Built 1979 Load: 24.0 t ADT: 575

FAS-2791

Poor

Over: RACCOON CREEK

1.3 MI N WALNUT HILL, Marion, IL

Built 1909 Load: 24.0 t ADT: 375

JUNCTION ROAD

Poor

Over: DRAINAGE DITCH

3. N DAVIS JUNCTION, Ogle, IL

Built 1978 Load: 24.0 t ADT: 425

TR 103B (OLD IL 29

Poor

Over: IL RIVER TRIB

S EDGE OF MOSSVILLE, Peoria, IL

Built 1919 Load: 24.0 t ADT: 200

COUNTY HIGHWAY 16

Poor

Over: TRIB TO HOG CREEK

1.0 MI SO.FAP 841, Perry, IL

Built 1985 Load: 24.0 t ADT: 50

TR 332

Poor

Over: MIDDLE FK MCKEE TRIB

2.0 W OF PERRY, Pike, IL

Built 1915 Load: 24.0 t ADT: 25

FAS 924

Poor

Over: BRADSHAW CR

3 MI SW OF LICK CR, Union, IL

Built 1981 Load: 24.0 t ADT: 2,150

US 30 WB

Poor

Over: DES PLAINES RIVER

0.8 M W OF IL 171, Will, IL

Built 1933 Load: 24.0 t ADT: 13,600

CORBIN ST

Poor

Over: KENT CREEK

0.15 MI N CUNNINGHAM, Winnebago, IL

Built 1937 Load: 24.0 t ADT: 950

TR 84A

Poor

Over: SO BR LT MISSOURI

4.5 MI NW MT STERLIN, Brown, IL

Built 1900 Load: 24.3 t ADT: 75

TR 118

Poor

Over: COAL CREEK

2 MI SO OF BUDA, Bureau, IL

Built 1970 Load: 24.3 t ADT: 25

TR-186

Poor

Over: Branch Bureau Creek

2 MI W OF TISKILWA, Bureau, IL

Built 1948 Load: 24.3 t ADT: 75

TR 269

Poor

Over: BEAR CREEK

0.75 MI W. PALMER, Christian, IL

Built 1922 Load: 24.3 t ADT: 50

FAS 2704(OLD-50)

Poor

Over: RACCOON CREEK

2.5 MI W JCT US-45N, Clay, IL

Built 1993 Load: 24.3 t ADT: 1,400

TR-229

Poor

Over: BIG MUDDY CREEK

4.5 MI E SAILOR SPRI, Clay, IL

Built 1980 Load: 24.3 t ADT: 75

FAS 788

Poor

Over: PRAIRE CREEK

1.0 MI N HOFFMANN, Clinton, IL

Built 1955 Load: 24.3 t ADT: 725

S. CALIFORNIA AVE

Poor

Over: SANITARY&SHIP CANAL

3300 S & 2800 W, Cook, IL

Built 1926 Load: 24.3 t ADT: 15,900

TR 189

Poor

Over: COON CREEK

2 M WSW CLINTON, De Witt, IL

Built 1962 Load: 24.3 t ADT: 150

NEW LEBANON RD

Poor

Over: COON CREEK

3460N 1790E, DeKalb, IL

Built 1969 Load: 24.3 t ADT: 100

Fox Lane

Poor

Over: Salt Creek

.01 M W Salt Crk. Ln, DuPage, IL

Built 1976 Load: 24.3 t ADT: 650

TR-118

Poor

Over: CREEK

2 MI S MASON, Effingham, IL

Built 1909 Load: 24.3 t ADT: 35

TR-587A (PUB ROAD)

Poor

Over: WILDCAT DITCH

E CARLYLE GM MGMT AR, Fayette, IL

Built 1973 Load: 24.3 t ADT: 10

BOTTOM RD - TR 288

Poor

Over: SWEGLE CREEK

NE-12-T8NR2E, Fulton, IL

Built 1979 Load: 24.3 t ADT: 50

TR-174A TABLER RD

Poor

Over: I & M CANAL

.02 MI NO CEMETERY R, Grundy, IL

Built 1961 Load: 24.3 t ADT: 500

DuPont Rd/FAS1273

Poor

Over: HOG RUN

SE Sec 30 T33N Range, Grundy, IL

Built 1975 Load: 24.3 t ADT: 775

TR 85

Poor

Over: BRANCH OF BIG CREEK

2.5 MI N E'TOWN, Hardin, IL

Built 1968 Load: 24.3 t ADT: 25

TR 10

Poor

Over: CAMP CREEK

3.0 MI W LYNN CENTER, Henry, IL

Built 1963 Load: 24.3 t ADT: 10

ILL 3

Poor

Over: WORTHEN BAYOU

1.2 MI S OF ILL 149, Jackson, IL

Built 1958 Load: 24.3 t ADT: 900

TR 244

Poor

Over: WALNUT CREEK

NE-22-T13NR3E, Knox, IL

Built 1966 Load: 24.3 t ADT: 50

US 34 FAP 587

Poor

Over: INDIAN CREEK

12.88 MI E OF IL 251, LaSalle, IL

Built 1952 Load: 24.3 t ADT: 2,000

TR-211

Poor

Over: L Vermillion river

N 35TH E 350, LaSalle, IL

Built 1963 Load: 24.3 t ADT: 200

TR 402

Poor

Over: OTTER CREEK

E 24TH N 1550, LaSalle, IL

Built 1959 Load: 24.3 t ADT: 50

CH-15

Poor

Over: BRANCH RACCOON CREEK

8 MI W ST FRANCISVIL, Lawrence, IL

Built 1972 Load: 24.3 t ADT: 75

WEST BROOKLYN ROAD

Poor

Over: DRAINAGE DITCH

1.0 MI S OF US RT 30, Lee, IL

Built 1983 Load: 24.3 t ADT: 275

CH 12 MAYTOWN RD

Poor

Over: BRANCH OF GREEN RIVE

0.75 MI W MAYTOWN, Lee, IL

Built 1957 Load: 24.3 t ADT: 150

MELUGINS GROVE RD

Poor

Over: BR GREEN RIVER

1.0 MI S REYNOLDS RD, Lee, IL

Built 1970 Load: 24.3 t ADT: 10

TR-272 (PAW PAW RD

Poor

Over: DRY RUN

0.5 MI N OF US 30, Lee, IL

Built 1950 Load: 24.3 t ADT: 50

TR 4

Poor

Over: EAGLE CREEK

3265 N, 100 E, Livingston, IL

Built 1926 Load: 24.3 t ADT: 75

TR 21

Poor

Over: MOON CREEK

165 E, 3050 N, Livingston, IL

Built 1931 Load: 24.3 t ADT: 75

TR 23

Poor

Over: TRIB TO VERMILION R

1140 E, 3050 N, Livingston, IL

Built 1969 Load: 24.3 t ADT: 25

TR 25

Poor

Over: LOCAL DRAINAGE

3.5 MI SE UNION, Logan, IL

Built 1960 Load: 24.3 t ADT: 50

OLD IL 4

Poor

Over: HONEY CREEK

6M S IL108-CARLINVIL, Macoupin, IL

Built 1920 Load: 24.3 t ADT: 20

BUCKEYE RD/ TR 371

Poor

Over: SUGAR CK

2.5MI SE HIGHLAND, Madison, IL

Built 1971 Load: 24.3 t ADT: 300

TR 95A (TH-D12)

Poor

Over: SENACHWINE CREEK

T12N-R9E-4PM SEC 32, Marshall, IL

Built 1977 Load: 24.3 t ADT: 50

TR 436

Poor

Over: SUGAR CREEK

S.CTR-35-T4NR1W, McDonough, IL

Built 1900 Load: 24.3 t ADT: 25

TAYLOR STREET

Poor

Over: BRANCH MONEY CREEK

E EDGE OF TOWANDA, McLean, IL

Built 1972 Load: 24.3 t ADT: 150

TR 37

Poor

Over: CONCORD CREEK

3 MI N PETERSBURG, Menard, IL

Built 1977 Load: 24.3 t ADT: 50

FAS 625

Poor

Over: SUGAR CREEK

1.0 S OF AUBURN, Sangamon, IL

Built 1956 Load: 24.3 t ADT: 1,000

TR 207

Poor

Over: SWAFFORD CREEK

3.1 MI SW SHELBYVILE, Shelby, IL

Built 1909 Load: 24.3 t ADT: 25

OLD ILL 121

Poor

Over: MACKINAW RIVER

1mi N HOPEDALE JCT, Tazewell, IL

Built 1932 Load: 24.3 t ADT: 75

Showing 26,551-26,600 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.