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 68

Fair

Over: PIKE CREEK

1245 N, 1000 E, Livingston, IL

Built 1955 Load: 10.7 t ADT: 25

TR 316

Fair

Over: MAUVAISE TERRE CREEK

1 MI W ORLEANS, Morgan, IL

Built 1968 Load: 10.7 t ADT: 50

TR 0096

Fair

Over: BROWN CREEK

2.5 MI SW EL DARA, Pike, IL

Built 1960 Load: 10.7 t ADT: 25

TR 216

Fair

Over: CREEK

.5 MI.N. MOUNDS, Pulaski, IL

Built 1900 Load: 10.7 t ADT: 10

TR 90

Fair

Over: LINGLE CREEK

3 MI NW OF MILL CR, Union, IL

Built 1900 Load: 10.7 t ADT: 125

COMMERCE ST

Fair

Over: MILNE CREEK

200 FT N 8TH STREET, Will, IL

Built 1960 Load: 10.7 t ADT: 50

TR-75 (OLIVER ROAD

Fair

Over: TUNNISON CREEK

0.5 MI N KNAPP ROAD, Winnebago, IL

Built 1961 Load: 10.7 t ADT: 50

TR 77

Fair

Over: OAK CR

2 MI NW MARCELLINE, Adams, IL

Built 1900 Load: 11.0 t ADT: 50

ELIZABETH HANOVER

Fair

Over: WOLF CREEK

2.5 MI N OF HANOVER, Jo Daviess, IL

Built 1901 Load: 11.0 t ADT: 150

FAS 2462 - CH 11

Fair

Over: STREAM

W.CTR-31-T23NR4W, Tazewell, IL

Built 1970 Load: 11.0 t ADT: 725

FAS-2821

Fair

Over: DRAINAGE DITCH

3 MI E GEFF, Wayne, IL

Built 1945 Load: 11.0 t ADT: 225

TR 28

Fair

Over: CLEAR CREEK

4.75 M N MORRISONVIL, Christian, IL

Built 1900 Load: 11.3 t ADT: 50

TR 10

Fair

Over: DITCH MOLE CREEK

2150 N, 200 E, Livingston, IL

Built 1965 Load: 11.3 t ADT: 50

MASSAC CREEK ROAD

Fair

Over: MASSAC CREEK

1.4 MI W ILL 145, Massac, IL

Built 1900 Load: 11.3 t ADT: 100

PALATINE RD

Fair

Over: SALT CREEK

0.01 W WINSTON DR, Cook, IL

Built 1959 Load: 11.7 t ADT: 14,500

TR-148

Fair

Over: FLAT CREEK

1.5 MI E CARLYLE GM, Fayette, IL

Built 1925 Load: 11.7 t ADT: 75

TR 157

Fair

Over: DRAINAGE DITCH

2.4 MI S EQUALITY, Gallatin, IL

Built 1900 Load: 11.7 t ADT: 10

TR-373

Fair

Over: RAYSE CREEK

2.5 MI N WALTONVILLE, Jefferson, IL

Built 1952 Load: 11.7 t ADT: 75

ROBERTS RD

Fair

Over: CN RR

3 MI W APPLE RIVER, Jo Daviess, IL

Built 1901 Load: 11.7 t ADT: 50

TR 73

Fair

Over: W OKAW RIVER

2.3 MI N OF DUNN, Moultrie, IL

Built 1970 Load: 11.7 t ADT: 150

CH 24

Fair

Over: LITTLE MACKINAW RIVE

CTR-26-T24NR2W, Tazewell, IL

Built 1960 Load: 11.7 t ADT: 175

CH 24

Fair

Over: WHITTEN BR

CTR-2-T23NR2W, Tazewell, IL

Built 1957 Load: 11.7 t ADT: 225

TR-171 (OWENS RD)

Fair

Over: E BR BIG ROCK CREEK

1400N 1800E, DeKalb, IL

Built 1957 Load: 12.0 t ADT: 50

TOWNSHIP RD NO 187

Fair

Over: HAMMOND BR PLUM RIV

4 MI SO OF STOCKTON, Jo Daviess, IL

Built 1963 Load: 12.0 t ADT: 75

TR-191 (HOLCOMB RD

Fair

Over: BRANCH STILLMAN CR

5.0 MI SE BYRON, Ogle, IL

Built 1956 Load: 12.0 t ADT: 225

TR 252

Fair

Over: MID HEND CR

NW-1-T12NR1W, Warren, IL

Built 1900 Load: 12.0 t ADT: 75

TR 86

Fair

Over: BRANCH OF SHOAL CR

0.75 MI NE E PIERRON, Bond, IL

Built 1901 Load: 12.2 t ADT: 25

TR 327

Fair

Over: LAKE PANA

1.6 MI E PANA, Christian, IL

Built 1900 Load: 12.3 t ADT: 1,100

FAP-364 Bloomingda

Fair

Over: CC&P RR

0.7 MI S ARMY TRAIL, DuPage, IL

Built 1968 Load: 12.3 t ADT: 16,700

CH 9

Fair

Over: S BRANCH BROUILLETTS

2.25 MI S OF US 36, Edgar, IL

Built 1954 Load: 12.3 t ADT: 75

TR 119

Fair

Over: SHILOH DRAIN DITCH 3

.5 MI NW OF GARLAND, Edgar, IL

Built 1900 Load: 12.3 t ADT: 25

TR 158

Fair

Over: TWO MILE CREEK

4 SE OF ROCKPORT, Pike, IL

Built 1965 Load: 12.3 t ADT: 25

FAS 469-CH 9

Fair

Over: STREAM

SW-1-T22NR3W, Tazewell, IL

Built 1968 Load: 12.3 t ADT: 700

PRIV ENTR OFF ILL1

Fair

Over: CANY CREEK

6 MI S OF ALTO PASS, Union, IL

Built 1942 Load: 12.3 t

WILLOWBROOK RD

Fair

Over: N KINNIKINNICK CR

0.2 M N ELEVATOR RD, Winnebago, IL

Built 1985 Load: 12.3 t ADT: 2,900

TR-83 (KNAPP ROAD)

Fair

Over: TUNNISON CREEK

0.5 MI W HARRISON RD, Winnebago, IL

Built 1961 Load: 12.3 t ADT: 75

CH 3

Fair

Over: SALT CREEK

2.7 MI NE FARMER CIT, De Witt, IL

Built 1957 Load: 12.6 t ADT: 125

TR 251F

Fair

Over: JEFFERSON CREEK

3.3 MI S OF WOODLAND, Iroquois, IL

Built 1938 Load: 12.6 t ADT: 425

CH 63E

Fair

Over: SALT CK TRIB

3.5 MI W BROADWELL, Logan, IL

Built 1938 Load: 12.6 t ADT: 50

TR-285

Fair

Over: ICG RR

4.5 MI N HELM, Marion, IL

Built 1909 Load: 12.6 t ADT: 10

TR 150

Fair

Over: LAKE FORK SHOAL CR

3.0 MI W PANAMA, Montgomery, IL

Built 1900 Load: 12.6 t ADT: 125

CH 1(FAS 658)

Fair

Over: DITCH #4

4.8 MI N LOVINGTON, Moultrie, IL

Built 1973 Load: 12.6 t ADT: 175

TR 318

Fair

Over: COLD RUN CREEK

2.75 NW OF NEBO, Pike, IL

Built 1960 Load: 12.6 t ADT: 25

TR 44

Fair

Over: STREAM

2.5 MI SW GALATIA, Saline, IL

Built 1900 Load: 12.6 t ADT: 10

TR 64 (12W)

Fair

Over: LICK CREEK

1.0 W OF LOAMI, Sangamon, IL

Built 1956 Load: 12.6 t ADT: 100

TR 133

Fair

Over: E.Brnch Panther Crk

4 MI E PANOLA, Woodford, IL

Built 1945 Load: 12.6 t ADT: 25

CH 4(FAS 680)

Fair

Over: SUGAR CREEK

2 MI SE OF ELBRIDGE, Edgar, IL

Built 1958 Load: 13.0 t ADT: 1,100

TR-117

Fair

Over: ICG RR

3.75 MI E HARMONY, Jefferson, IL

Built 1960 Load: 13.0 t ADT: 75

NORTH MENOMINEE RO

Fair

Over: LITTLE MENOMINEE RIV

MENOMINEE, Jo Daviess, IL

Built 1932 Load: 13.0 t ADT: 550

SIDE STREET

Fair

Over: UNION PACIFIC RR

GOREVILLE E.ILL 37, Johnson, IL

Built 1900 Load: 13.0 t ADT: 25

Showing 4,101-4,150 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.