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 169A

Good

Over: HICKORY CREEK

1805 E, 1300 N, Livingston, IL

Built 1979 Load: 32.4 t ADT: 50

TR 45

Good

Over: CREEK

1285 E, 2700 N, Livingston, IL

Built 1978 Load: 32.4 t ADT: 25

TR 24

Good

Over: SHORT POINT CREEK

2126 N, 500 E, Livingston, IL

Built 1980 Load: 32.4 t ADT: 100

TR 149

Good

Over: TRIB N FK VERMILION

3125 E, 1500 N, Livingston, IL

Built 1980 Load: 32.4 t ADT: 100

TR 263

Good

Over: INDIAN CREEK

2290 E, 240 N, Livingston, IL

Built 1979 Load: 32.4 t ADT: 50

TR 219

Good

Over: TRIB S FK VERMILION

2550 E, 825 N, Livingston, IL

Built 1979 Load: 32.4 t ADT: 100

TR 144

Good

Over: WOLF CREEK

2205 N, 1800 E, Livingston, IL

Built 1979 Load: 32.4 t ADT: 50

TR 92

Good

Over: ROOKS CREEK

1625 N, 1200 E, Livingston, IL

Built 1983 Load: 32.4 t ADT: 175

TR 207A

Good

Over: S FORK VERMILION RIV

2305 E, 1000 N, Livingston, IL

Built 1982 Load: 32.4 t ADT: 1,000

TR 41C

Good

Over: CREEK

3315 E, 2800 N, Livingston, IL

Built 1979 Load: 32.4 t ADT: 75

TR 128

Good

Over: TRIB TO MUD CREEK

2755 N, 1600 E, Livingston, IL

Built 1979 Load: 32.4 t ADT: 25

TR 119

Good

Over: SCATTERING POINT CR

645 E, 1900 N, Livingston, IL

Built 1981 Load: 32.4 t ADT: 275

TR 238C

Good

Over: S FORK VERMILLION RI

760 N, 2800 E, Livingston, IL

Built 1982 Load: 32.4 t ADT: 25

TR 19B

Good

Over: TRIB E FORK MAZON RI

3130 E, 3100 N, Livingston, IL

Built 1982 Load: 32.4 t ADT: 50

TR 269A

Good

Over: INDIAN CREEK

2695 E, 100 N, Livingston, IL

Built 1982 Load: 32.4 t ADT: 25

TR 195A

Good

Over: CREEK

2 MI N CHENOA, Livingston, IL

Built 1982 Load: 32.4 t ADT: 50

TR 149

Good

Over: FELKY SLOUGH

2290 E, 1500 N, Livingston, IL

Built 1982 Load: 32.4 t ADT: 100

TR 216A

Good

Over: FELKY SLOUGH

2020 N, 2400 E, Livingston, IL

Built 1983 Load: 32.4 t ADT: 25

TR 19B

Good

Over: GOOSEBERRY CREEK

3260 E, 3100 N, Livingston, IL

Built 1983 Load: 32.4 t ADT: 50

TR 220D

Good

Over: N FORK VERMILION R

1395 N, 2500 E, Livingston, IL

Built 1986 Load: 32.4 t ADT: 50

TR 155

Good

Over: DRAINAGE DITCH

3420 E, 1450 N, Livingston, IL

Built 1983 Load: 32.4 t ADT: 25

TR 213A

Good

Over: S FORK VERMILION

2385 E, 900 N, Livingston, IL

Built 1984 Load: 32.4 t ADT: 50

TR 45

Good

Over: MUD CREEK

990 E, 2700 N, Livingston, IL

Built 1984 Load: 32.4 t ADT: 25

TR 157

Good

Over: PIKE CREEK

1165 E, 1400 N, Livingston, IL

Built 1985 Load: 32.4 t ADT: 50

TR 29

Good

Over: GOOSEBERRY CREEK

3170 E, 3000 N, Livingston, IL

Built 1985 Load: 32.4 t ADT: 25

TR 210B

Good

Over: S.FORK VERMILLION RI

1025 N, 2315 E, Livingston, IL

Built 1985 Load: 32.4 t ADT: 150

TR 244C

Good

Over: N FK VERMILLION RV

1320 N, 2900 E, Livingston, IL

Built 1988 Load: 32.4 t ADT: 50

TR 258A

Good

Over: N FORK VERMILION R

1390 N, 3100 E, Livingston, IL

Built 1987 Load: 32.4 t ADT: 50

TR 1G

Good

Over: BREWSTER RUN

2670E, 3300 N, Livingston, IL

Built 1985 Load: 32.4 t ADT: 250

TR 5

Good

Over: MOON CREEK

475 E, 3200 N, Livingston, IL

Built 1985 Load: 32.4 t ADT: 250

TR 34

Good

Over: VERMILLION RV.

2910 N, 670 E, Livingston, IL

Built 1988 Load: 32.4 t ADT: 150

TR 175

Good

Over: DRAINAGE DITCH

3030 E, 1300 N, Livingston, IL

Built 1986 Load: 32.4 t ADT: 25

TR 238

Good

Over: FIVE MILE CREEK

1725 N, 2800 E, Livingston, IL

Built 1986 Load: 32.4 t ADT: 50

TR137

Good

Over: ROOKS CREEK

1260E,1600N, Livingston, IL

Built 1994 Load: 32.4 t ADT: 325

TR 268D

Good

Over: FIVE MILE CREEK

1880 N, 3200 E, Livingston, IL

Built 1986 Load: 32.4 t ADT: 25

TR 152A

Good

Over: HICKORY CREEK

1360 N, 1825 E, Livingston, IL

Built 1986 Load: 32.4 t ADT: 25

TR 218

Good

Over: INDIAN CREEK

210 N, 2400 E, Livingston, IL

Built 1987 Load: 32.4 t ADT: 50

TR 207A

Good

Over: TRIB N FK VERMILLION

3390 E, 1000 N, Livingston, IL

Built 1988 Load: 32.4 t ADT: 50

TR 250

Good

Over: E FORK MAZON RIVER

2995 N, 3000 E, Livingston, IL

Built 1989 Load: 32.4 t ADT: 25

TR 114

Good

Over: TURTLE CREEK

1245N,1400E, Livingston, IL

Built 1989 Load: 32.4 t ADT: 50

TR 18

Good

Over: MOLE CREEK

2350 N, 400 E, Livingston, IL

Built 1989 Load: 32.4 t ADT: 150

TR 41D

Good

Over: WEST FK MAZON RIVER

2025 E, 2800 N, Livingston, IL

Built 1988 Load: 32.4 t ADT: 50

TR 35

Good

Over: PRAIRIE CREEK

560 E, 2900 N, Livingston, IL

Built 1987 Load: 32.4 t ADT: 50

TR 223

Good

Over: INDIAN CREEK

2275 E, 825 N, Livingston, IL

Built 1987 Load: 32.4 t ADT: 275

TR 57

Good

Over: E FK MAZON RIVER

2915 E, 2600 N, Livingston, IL

Built 1989 Load: 32.4 t ADT: 25

TR 1D

Good

Over: TRIB TO ROOKS CREEK

1200E, 900N, Livingston, IL

Built 1989 Load: 32.4 t ADT: 125

TR 233A

Good

Over: S FK VERMILION RIVER

2975E, 650N, Livingston, IL

Built 1990 Load: 32.4 t ADT: 25

TR 10A

Good

Over: PRAIRIE CREEK

2795N 200E, Livingston, IL

Built 1992 Load: 32.4 t ADT: 50

TR 201A

Good

Over: TRIB N FK VERMILION

3385E, 1100N, Livingston, IL

Built 1990 Load: 32.4 t ADT: 25

TR 119

Good

Over: TRIB SHORT POINT CR

415E, 1900N, Livingston, IL

Built 1991 Load: 32.4 t ADT: 275

Showing 18,801-18,850 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.