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-63

Fair

Over: DRAINAGE DITCH

2.2 MI N CROSSVILLE, White, IL

Built 1961 Load: 24.3 t ADT: 25

TR-77

Fair

Over: DRAINAGE DITCH

1.5 MI SE CENTERVILL, White, IL

Built 1962 Load: 24.3 t ADT: 10

TR-287

Fair

Over: BEAR CREEK

1.5 MI N NORRIS CITY, White, IL

Built 1954 Load: 24.3 t ADT: 75

TR-406

Fair

Over: JERRY SLOUGH

2 MI S PHILLPSTOWN, White, IL

Built 1964 Load: 24.3 t ADT: 50

TR-112

Fair

Over: DRAINAGE DITCH

2 MI E ENFIELD, White, IL

Built 1909 Load: 24.3 t ADT: 25

TR-219

Fair

Over: SEVEN MILE CREEK

4 MI SE ENFIELD, White, IL

Built 1909 Load: 24.3 t ADT: 10

STERN RD

Fair

Over: TRIB TO DRAINAGE DIT

5 MI NW OF ERIE, Whiteside, IL

Built 1970 Load: 24.3 t ADT: 25

PROPHETSTOWN ROAD

Fair

Over: SPRING SLOUGH

3 MI SW OF ROCK FALL, Whiteside, IL

Built 1947 Load: 24.3 t ADT: 2,100

HOOVER RD.

Fair

Over: JORDON CREEK

5 MI N STERLING, Whiteside, IL

Built 1969 Load: 24.3 t ADT: 225

SAWYER RD

Fair

Over: FRENCH CREEK

SOUTH EDGE MORRISON, Whiteside, IL

Built 1952 Load: 24.3 t ADT: 225

US 30

Fair

Over: MISSISSIPPI RIVER

1 MI W OF ILL 84, Whiteside, IL

Built 1956 Load: 24.3 t ADT: 9,650

DELLOS RD

Fair

Over: AUX SABLE CR

6 MI NE MORRIS, Will, IL

Built 1873 Load: 24.3 t ADT: 225

I- 55 NB

Fair

Over: ABANDONED RR

2.3 M N OF US 30, Will, IL

Built 1956 Load: 24.3 t ADT: 40,900

BLACK RD

Fair

Over: ROCK RUN CREEK

1/2 MI E I-55, Will, IL

Built 1960 Load: 24.3 t ADT: 24,100

BERNHARD ROAD

Fair

Over: JACKSON BRANCH

2.4 MI E ILL 53, Will, IL

Built 1900 Load: 24.3 t ADT: 20

SCHEER ROAD

Fair

Over: FORKED CREEK

2.1 N US-52, Will, IL

Built 1900 Load: 24.3 t ADT: 50

GOUGAR RD.

Fair

Over: SPRING CREEK

0.2M.N.OF US-6, Will, IL

Built 1900 Load: 24.3 t ADT: 6,750

WOLF RD

Fair

Over: TRIB. HICKORY CR

0.15 MI N US 30, Will, IL

Built 1937 Load: 24.3 t ADT: 10,800

135TH ST

Fair

Over: LILY CACHE CR

1.75M E OF IL59, Will, IL

Built 2004 Load: 24.3 t ADT: 5,400

S Powerhouse Drive

Fair

Over: DesPlaines River

0.3 MI N OF W 9TH ST, Will, IL

Built 2005 Load: 24.3 t ADT: 525

WILDCAT DRIVE

Fair

Over: TRIB TO CRAB ORCH CK

SOUTH EDGE OF MARION, Williamson, IL

Built 1980 Load: 24.3 t ADT: 2,700

BOYTON ST

Fair

Over: DRAINAGE DITCH

BOYTON E OF PARK DR, Williamson, IL

Built 1967 Load: 24.3 t ADT: 2,400

SPRING CREEK ROAD

Fair

Over: SPRING CREEK

0.5 MI E IL 251, Winnebago, IL

Built 1930 Load: 24.3 t ADT: 16,300

COUNTY LINE ROAD

Fair

Over: N. KINNICKINNICK CRK

1.1 MI N ELEVATOR RD, Winnebago, IL

Built 1960 Load: 24.3 t ADT: 800

YALE BRIDGE RD

Fair

Over: UNNAMED CREEK

0.2 MI E WHEELER RD, Winnebago, IL

Built 1932 Load: 24.3 t ADT: 325

KLINGER RD

Fair

Over: SUMNER CREEK

0.6 MI N KELLEY RD, Winnebago, IL

Built 1948 Load: 24.3 t ADT: 125

SAUNDERS RD

Fair

Over: COOLIDGE CREEK

0.5 MI E AHRENS ROAD, Winnebago, IL

Built 1957 Load: 24.3 t ADT: 800

DURAND RD

Fair

Over: S FORK OTTER CREEK

0.6 MI E BEST ROAD, Winnebago, IL

Built 1968 Load: 24.3 t ADT: 1,100

HARRISON ROAD

Fair

Over: KENT CREEK

0.7 N AUBURN ST, Winnebago, IL

Built 1957 Load: 24.3 t ADT: 100

MERIDIAN RD

Fair

Over: DRAINAGE

5 MI NE WINNEBAGO, Winnebago, IL

Built 1956 Load: 24.3 t ADT: 3,300

EISENHOWER DRIVE

Fair

Over: SPRING CREEK

0.1 M S SPRING CR RD, Winnebago, IL

Built 1963 Load: 24.3 t ADT: 550

GRAND AVE

Fair

Over: LOVES PARK CREEK

CENTER LOVES PARK, Winnebago, IL

Built 1961 Load: 24.3 t ADT: 325

LOVES PARK DRIVE

Fair

Over: LOVES PARK CRREK

CENTER LOVES PARK, Winnebago, IL

Built 1960 Load: 24.3 t ADT: 525

PEBBLE CREEK TRAIL

Fair

Over: UNNAMED CREEK

NORTHEAST LOVES PARK, Winnebago, IL

Built 1973 Load: 24.3 t ADT: 650

HONONEGAH PRES RD

Fair

Over: DRY RUN CREEK

1 MI SE OF ROCKTON, Winnebago, IL

Built 1925 Load: 24.3 t ADT: 100

KISHWAUKEE PRES RD

Fair

Over: BR KISHWAUKEE RIVER

0.3 MI W MULFORD RD, Winnebago, IL

Built 1901 Load: 24.3 t ADT: 75

TR 92A

Fair

Over: TRIB WALNUT CR

2 MI E METMORA, Woodford, IL

Built 1930 Load: 24.3 t ADT: 10

WASHBURN ST

Fair

Over: SNAG CR

WASHBURN, Woodford, IL

Built 1971 Load: 24.3 t ADT: 175

TR 145

Fair

Over: BR WALNUT CR

1025 EAST 1200 NORTH, Woodford, IL

Built 1974 Load: 24.3 t ADT: 50

TR 88

Fair

Over: MILL CREEK

1200 EAST 675 NORTH, Woodford, IL

Built 1945 Load: 24.3 t ADT: 350

TR 76

Fair

Over: DRY CREEK

1050 EAST 2150 NORTH, Woodford, IL

Built 1946 Load: 24.3 t ADT: 150

TR 39

Fair

Over: DRY CREEK

2100 North 1152 East, Woodford, IL

Built 1960 Load: 24.3 t ADT: 200

TR 140

Fair

Over: SNAG CREEK

1700 EAST 1825 NORTH, Woodford, IL

Built 1946 Load: 24.3 t ADT: 50

TR 174

Fair

Over: HALLENBACH CREEK

2000 EAST 2000 NORTH, Woodford, IL

Built 1953 Load: 24.3 t ADT: 50

TR 16

Fair

Over: ORCHARD CK

1 MILE SO OF THEBES, Alexander, IL

Built 1971 Load: 24.6 t ADT: 25

SHATTUCK RD

Fair

Over: MOSQUITO CREEK

3.0 MI E BELVIDERE, Boone, IL

Built 1958 Load: 24.6 t ADT: 750

N STONE BRIDGE ROA

Fair

Over: BR OF STRADDLE CR

.5 MI W LANARK, Carroll, IL

Built 1964 Load: 24.6 t ADT: 225

I-74

Fair

Over: STREAM

1.5 MI E OF URBANA, Champaign, IL

Built 1959 Load: 24.6 t ADT: 28,300

TR 236

Fair

Over: E BRANCH EMBARRAS R

4.0 MI NW LONGVIEW, Champaign, IL

Built 1972 Load: 24.6 t ADT: 25

SANFORD ST

Fair

Over: E LAKE FORK DRAIN D

IN IVESDALE, Champaign, IL

Built 1972 Load: 24.6 t ADT: 100

Showing 5,651-5,700 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.