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

RINGWOOD ROAD SOUT

Poor

Over: RAVINE

RINGWOOD AT SHERIDAN, Lake, IL

Built 1913 Load: 9.4 t ADT: 475

KINNEMAN LAKE ROAD

Poor

Over: STREAM N OF OHIO RIV

.5 MI N OHIO RIVER, Massac, IL

Built 1900 Load: 9.4 t ADT: 75

TR 75

Poor

Over: GROVE CR

3.0 MI SE GREENVIEW, Menard, IL

Built 1900 Load: 9.4 t ADT: 25

DUNCAN RD.

Poor

Over: BR. SPOON RIVER

E.CTR-3-T11NR6E, Peoria, IL

Built 1991 Load: 9.4 t ADT: 250

ILL 145

Poor

Over: BAY CREEK

2.3 MI SO OF ILL 146, Pope, IL

Built 1983 Load: 9.4 t ADT: 1,750

TR 354 B

Poor

Over: BR LITTLE WABASH R

4.7 MI W SIGEL, Shelby, IL

Built 1909 Load: 9.4 t ADT: 50

OHIO ST

Poor

Over: SPRING CREEK

.125 MI N JACKSON ST, Will, IL

Built 1912 Load: 9.4 t ADT: 3,100

TR 239A

Poor

Over: MIDDLE CREEK

1.80 mi E IL 336, Hancock, IL

Built 1917 Load: 9.7 t ADT: 50

TR 224A

Poor

Over: SHORT CREEK

3.5 SE BURNSIDE, Hancock, IL

Built 1908 Load: 9.7 t ADT: 50

FLAT IRON ROAD

Poor

Over: MOKELER CREEK

0.4 MI. S. ILL 173, McHenry, IL

Built 1950 Load: 9.7 t ADT: 1,550

US 67

Poor

Over: HENDERSON CR

6.7 MI S OF VIOLA, Mercer, IL

Built 1931 Load: 9.7 t ADT: 2,400

IL 17/91

Poor

Over: SPOON RIVER

.6 MI W OF WYOMING, Stark, IL

Built 1924 Load: 9.7 t ADT: 1,600

TR 275

Poor

Over: EMBARRAS RIVER

3 MI NW ASHMORE, Coles, IL

Built 1914 Load: 10.0 t ADT: 75

STONEBRIDGE TRAIL

Poor

Over: SPRING BROOK

500 FT S SPRNG GREEN, DuPage, IL

Built 1970 Load: 10.0 t ADT: 1,700

TR-19

Poor

Over: RAMSEY CREEK

3.5 MI NW RAMSEY, Fayette, IL

Built 1929 Load: 10.0 t ADT: 50

HINCKLEY ROAD

Poor

Over: E BRANCH BIG ROCK CR

0.5 MI W BIG ROCK, Kane, IL

Built 1976 Load: 10.0 t ADT: 200

TR 171

Poor

Over: SANGAMON RIVER

2.0 E OF CLEAR LAKE, Sangamon, IL

Built 1950 Load: 10.0 t ADT: 175

TR 304

Poor

Over: BRUSH CREEK

3.7 MI NW STEWARDSON, Shelby, IL

Built 1909 Load: 10.0 t ADT: 25

TR 57

Poor

Over: BRANCH OF CAMP CREEK

1.0 MI N COLUSA, Hancock, IL

Built 1925 Load: 10.4 t ADT: 50

TR 175

Poor

Over: CREEK

2.25 MI NE ST. ANNE, Kankakee, IL

Built 1970 Load: 10.4 t ADT: 75

TR 311(PIG PEN LAN

Poor

Over: BRANCH HONEY CREEK

1 MI. SO. PITTSFIELD, Pike, IL

Built 1989 Load: 10.4 t ADT: 25

TR 188

Poor

Over: BR CEDAR FK CR

NW-4-T9NR1W, Warren, IL

Built 1961 Load: 10.4 t ADT: 50

ELM STREET-ROCKFOR

Poor

Over: KENT CREEK

0.5 MI W OF DOWNTOWN, Winnebago, IL

Built 1992 Load: 10.4 t ADT: 35

E KELTNER ROAD

Poor

Over: E FORK PLUM RIVER

.5 MI S COUNTY LINE, Carroll, IL

Built 1886 Load: 10.7 t ADT: 25

WARRENVILLE RD

Poor

Over: E.BRANCH DU PAGE RV

0.3 MI W IL 53, DuPage, IL

Built 1946 Load: 10.7 t ADT: 12,600

BRACEVILLE RD CH C

Poor

Over: CREEK

0.4 MI E OF TYNAN RD, Grundy, IL

Built 1963 Load: 10.7 t ADT: 1,450

US ROUTE 52

Poor

Over: FOX RIVER

2.10 MI W OF ILL 71, LaSalle, IL

Built 1931 Load: 10.7 t ADT: 1,850

TR 56(GLASGOW RD)

Poor

Over: SOUTH FORK CREEK

3.0 MI N WARRENBURG, Macon, IL

Built 1975 Load: 10.7 t ADT: 75

CH-27 (JOHNSON RD)

Poor

Over: NIPPERSINK CR

0.6 M NE DURKEE RD, McHenry, IL

Built 1978 Load: 10.7 t ADT: 300

BRANDON ROAD

Poor

Over: DES PLAINES RIVER

BRANDON ROAD&DESP RV, Will, IL

Built 1932 Load: 10.7 t ADT: 6,200

SAMPSON STREET

Poor

Over: PETTIBONE CREEK

0.5 KM S OF DECATUR AVE, Lake, IL

Built 1926 Load: 10.9 t ADT: 1,260

TR-75

Poor

Over: PANTHER CREEK

2 MI S HORD, Clay, IL

Built 1950 Load: 11.0 t ADT: 50

TR 188

Poor

Over: N FORK SALT CREEK

3.3 MI NW OF DEWITT, De Witt, IL

Built 1911 Load: 11.0 t ADT: 25

TR 290

Poor

Over: SPRING CREEK

2.0 NW LAHARPE, Hancock, IL

Built 1911 Load: 11.0 t ADT: 50

US 14

Poor

Over: FLINT CREEK TRIB

0.2 Mi E OF IL 59, Lake, IL

Built 1937 Load: 11.0 t ADT: 24,300

TR-250(ZIMMERMAN R

Poor

Over: TRIB BUREAU CR

3 MI N LASALLE CO L, Lee, IL

Built 1958 Load: 11.0 t ADT: 100

TR 268

Poor

Over: GOUSEBERRY CREEK

2605 N, 3200 E, Livingston, IL

Built 1950 Load: 11.0 t ADT: 100

CNTR GROVE/ FAU 88

Poor

Over: MCT BIKE TRAIL

.85 EAST 157, Madison, IL

Built 1989 Load: 11.0 t ADT: 12,600

TR 15

Poor

Over: DEERLICK BR.

SE-7-T15NR4W, Mercer, IL

Built 1900 Load: 11.0 t ADT: 25

RIEKENA RD - TR 24

Poor

Over: LARGENT CREEK

CENT 30 T8NR7E, Peoria, IL

Built 1972 Load: 11.0 t ADT: 175

TR 181

Poor

Over: RICHLAND CREEK

3.7 MI SW WINDSOR, Shelby, IL

Built 1909 Load: 11.0 t ADT: 25

TR-524

Poor

Over: OWENS CREEK

4 MI E FAIRFIELD, Wayne, IL

Built 1909 Load: 11.0 t ADT: 100

TOWN LINE RD

Poor

Over: MARLEY CREEK

0.8 MI S I-80, Will, IL

Built 1978 Load: 11.0 t ADT: 3,250

GENEVA ROAD

Poor

Over: W.BRANCH DU PAGE RV.

0.1 MI W WINFIELD RD, DuPage, IL

Built 1941 Load: 11.3 t ADT: 14,300

GRAND RIDGE ROAD

Poor

Over: WAUPECON CREEK

0.35 MI W VERONA RD, Grundy, IL

Built 1939 Load: 11.3 t ADT: 1,150

TR 270

Poor

Over: BR OF OAT CREEK

6.0 MI SW ATKINSON, Henry, IL

Built 1890 Load: 11.3 t ADT: 25

GENESEE ST

Poor

Over: WAUKEGAN RIVER

ON GEN ST S OF WATER, Lake, IL

Built 1913 Load: 11.3 t ADT: 1,700

PLEASANT VALLEY RD

Poor

Over: KISHWAUKEE RIVER

0.2 MI W OF MCCUE RO, McHenry, IL

Built 1978 Load: 11.3 t ADT: 325

TR 229 A

Poor

Over: BIG GEORGE BRANCH

2MI SW ASSUMPTION, Christian, IL

Built 1900 Load: 11.7 t ADT: 10

TR-120A

Poor

Over: RACCOON CREEK

4 MI NE XENIA, Clay, IL

Built 1922 Load: 11.7 t ADT: 25

Showing 25,801-25,850 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.