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

CH 8 FAS 1362

Good

Over: CREEK

2 MI S MCDOWELL, Livingston, IL

Built 1966 Load: 31.8 t ADT: 950

IL 121

Good

Over: FORK SALT CREEK

2.7MI N MT PULASKI, Logan, IL

Built 1991 Load: 31.8 t ADT: 3,500

US 51 (FAP 322)

Good

Over: DEER CREEK

4.2 MI S FAYETTE C L, Marion, IL

Built 1959 Load: 31.8 t ADT: 2,500

FAS-2719 (CH-8)

Good

Over: E FK KASKASKIA RIVER

2 MI NW ALMA, Marion, IL

Built 1986 Load: 31.8 t ADT: 800

I 24 EB

Good

Over: ABANDON RR BED

1.3 MI S OF US 45, Massac, IL

Built 1970 Load: 31.8 t ADT: 15,600

I 24 WB

Good

Over: ABANDON RR BED

1.3 MI S OF US 45, Massac, IL

Built 1970 Load: 31.8 t ADT: 15,600

I-39/US 51 SB

Good

Over: SIX MILE CREEK

3.92 MI N OF I-55, McLean, IL

Built 1989 Load: 31.8 t ADT: 8,650

TR 18

Good

Over: WEST FORK SUGAR CR

2.5 MI NNW STANFORD, McLean, IL

Built 1978 Load: 31.8 t ADT: 25

FAS 1857/CH6

Good

Over: LONG SLASHCREEK

3.0M W COLUMBIA/CH6, Monroe, IL

Built 1982 Load: 31.8 t ADT: 3,600

IL 38

Good

Over: DRAINAGE

0.18 W WOODLAWN RD, Ogle, IL

Built 2003 Load: 31.8 t ADT: 5,450

TOWNLINE ROAD

Good

Over: BR. ELKHORN CREEK

5.5 MI SW FORRESTON, Ogle, IL

Built 1987 Load: 31.8 t ADT: 75

I-55 (NB)/ I-72 (E

Good

Over: LOST BRIDGE TRAIL BP

.3M S IL29/S GRND AV, Sangamon, IL

Built 1995 Load: 31.8 t ADT: 25,400

W ORANGEVILLE ROAD

Good

Over: BRANCH PECATONICA RV

E EDGE OF MCCONNELL, Stephenson, IL

Built 1977 Load: 31.8 t ADT: 900

FAS 923

Good

Over: UNNAMED STREAM

W EDGE UNIONCO FORST, Union, IL

Built 1970 Load: 31.8 t ADT: 400

FAS 1519(CH 25)

Good

Over: STREAM

2 MI W WILLARD ARPRT, Champaign, IL

Built 1972 Load: 32.1 t ADT: 1,150

TR 78

Good

Over: STREAM

.5 MI S OF FISHER, Champaign, IL

Built 1972 Load: 32.1 t ADT: 600

FAI 64 WB

Good

Over: SUGAR CREEK

3.9 MI EAST OF CL, Clinton, IL

Built 1970 Load: 32.1 t ADT: 15,500

FAI 64 EB

Good

Over: KASKASKIA R OVERFLOW

1/4 mi W COUNTY LINE, Clinton, IL

Built 1970 Load: 32.1 t ADT: 15,500

FAS 2871 MINE RD

Good

Over: JACKIE BRANCH

FAS 2871 OV JACKIEBR, Franklin, IL

Built 1968 Load: 32.1 t ADT: 125

VERONA RD TR-74

Good

Over: WAUPECAN CR

0.35 MI N OF CH 9, Grundy, IL

Built 1978 Load: 32.1 t ADT: 325

TR-174

Good

Over: OPOSSUM CREEK

3.5 MI NW MCLEANSBOR, Hamilton, IL

Built 1981 Load: 32.1 t ADT: 300

TR 97

Good

Over: ANTHONY CREEK

3 MI E OF ILLINOIS 1, Hardin, IL

Built 1977 Load: 32.1 t ADT: 25

TR 401

Good

Over: INDIAN CREEK

5.0 MI S KEWANEE, Henry, IL

Built 1964 Load: 32.1 t ADT: 50

TR 420-B

Good

Over: MUD CREEK

3.0 MI N KEWANEE, Henry, IL

Built 1964 Load: 32.1 t ADT: 75

TR-443

Good

Over: PUNCHEON CREEK

6MI W WALTONVILLE, Jefferson, IL

Built 1982 Load: 32.1 t ADT: 25

FAS 929-CH 5

Good

Over: CLIFTY CR

SW1/4 SEC30 T13S,R4E, Johnson, IL

Built 1974 Load: 32.1 t ADT: 500

TR 310

Good

Over: BR COVEL CREEK

E 18TH N 2330, LaSalle, IL

Built 1930 Load: 32.1 t ADT: 100

CH 15 INDIAN HEAD

Good

Over: WINNEGAGO DITCH

4.5 MI N BUREAU CO, Lee, IL

Built 1956 Load: 32.1 t ADT: 275

O'BRIEN ROAD

Good

Over: NIPPERSINK CREEK

1.5 MI W OF IL 47, McHenry, IL

Built 1976 Load: 32.1 t ADT: 850

TR 50

Good

Over: POPE CREEK

NW-13-T13NR5W, Mercer, IL

Built 1980 Load: 32.1 t ADT: 75

FAS 854 CH 8

Good

Over: GULF MOBILE & OHIO R

CH 8 OVER GM&O RR, Monroe, IL

Built 1970 Load: 32.1 t ADT: 2,350

TR 20

Good

Over: STREAM

1 MI NW LAKE CITY, Moultrie, IL

Built 1978 Load: 32.1 t ADT: 75

OLD COLV RD MS6000

Good

Over: OGLE CREEK

.32 MI N RTE 50, St. Clair, IL

Built 1980 Load: 32.1 t ADT: 9,900

FAS 1378-CH 7

Good

Over: SPOON RIVER

SW-13-T12NR6E, Stark, IL

Built 1968 Load: 32.1 t ADT: 275

RENWICK RD

Good

Over: MINK CREEK

1.5 MI W OF WEBER RD, Will, IL

Built 1972 Load: 32.1 t ADT: 14,900

SPRINGFIELD AVE

Good

Over: CN RR

1/4 MI S CUNNINGHAM, Winnebago, IL

Built 2002 Load: 32.1 t ADT: 7,700

US 24

Good

Over: FRAZIER CREEK

1.2 MI E JCT24+96, Adams, IL

Built 2001 Load: 32.4 t ADT: 3,950

CH 7

Good

Over: URSA CREEK

4.0 MI W URSA, Adams, IL

Built 1967 Load: 32.4 t ADT: 650

CH 7

Good

Over: DRAINAGE DITCH

1.2 MI W URSA ON CH, Adams, IL

Built 1969 Load: 32.4 t ADT: 500

TR 0135

Good

Over: BEAR CREEK

3.1 MI N CAMP POINT, Adams, IL

Built 1977 Load: 32.4 t ADT: 100

TR 0019

Good

Over: WILLIAMS BRANCH

2.0 MI N LAPRAIRIE, Adams, IL

Built 1978 Load: 32.4 t ADT: 50

TR 228

Good

Over: MUD CREEK

1.3 MI N LORAINE, Adams, IL

Built 1980 Load: 32.4 t ADT: 100

TR 194

Good

Over: MUD CREEK

2.5 MI NW LORAINE, Adams, IL

Built 1980 Load: 32.4 t ADT: 75

TR 309

Good

Over: MCKEE CREEK

1 MI E COLUMBUS, Adams, IL

Built 1981 Load: 32.4 t ADT: 125

TR 20

Good

Over: ROCKY RUN DIVERSION

2.6 MI NW MARCELINE, Adams, IL

Built 1984 Load: 32.4 t ADT: 100

TR 354

Good

Over: MC KEE CREEK

3.7 MI N LIBERTY, Adams, IL

Built 1985 Load: 32.4 t ADT: 75

CH 12

Good

Over: CROOKED NECK CREEK

1.6 MI SO BIG NECK, Adams, IL

Built 1987 Load: 32.4 t ADT: 200

CH 10

Good

Over: BR. MC CRANEY CR.

4 MI. E PLAINVILLE, Adams, IL

Built 1989 Load: 32.4 t ADT: 150

CH 14

Good

Over: MISSOURI CREEK

2.7 MI N CLAYTON, Adams, IL

Built 1992 Load: 32.4 t ADT: 500

CH 1

Good

Over: BEAR CR OVERFLOW

3.8 MI W LORAINE, Adams, IL

Built 2000 Load: 32.4 t ADT: 100

Showing 15,101-15,150 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.