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 30

Poor

Over: W. BR LANGAN CR

0.25 MI N. CH 4, Iroquois, IL

Built 1965 Load: 22.4 t ADT: 50

FAP-116 (ILL-130)

Poor

Over: FOX RIVER

.5 MI N STE MARIE RD, Jasper, IL

Built 1928 Load: 22.4 t ADT: 4,400

I 64 WB

Poor

Over: CASEY FK & UN PAC RR

.2 MI E ILL-37, Jefferson, IL

Built 1972 Load: 22.4 t ADT: 6,350

SCHLAPP RD/MS 360

Poor

Over: E.AUX SABLE CR.

2.5 MI S OF ILL 126, Kendall, IL

Built 1930 Load: 22.4 t ADT: 850

TR 107B

Poor

Over: WOLF CREEK

1520 E, 2100 N, Livingston, IL

Built 1975 Load: 22.4 t ADT: 150

DRY RIDGE ROAD

Poor

Over: MAIN DITCH

0.9 MI E US 45, Massac, IL

Built 1964 Load: 22.4 t ADT: 25

US 12

Poor

Over: N BR NIPPERSINK CRK

0.5 M S E OF IL 31, McHenry, IL

Built 1990 Load: 22.4 t ADT: 8,250

STREIT ROAD

Poor

Over: PISCASAW CREEK

0.4 MI E OF COUNTY, McHenry, IL

Built 1959 Load: 22.4 t ADT: 425

TR 230

Poor

Over: CREEK

1.5 MI SW NORTONVILE, Morgan, IL

Built 1981 Load: 22.4 t ADT: 75

ILL 153

Poor

Over: MARY'S RIVER

1 MI N OF EDEN, Randolph, IL

Built 1934 Load: 22.4 t ADT: 1,600

AUGUSTIN RD - TR 9

Poor

Over: MUD CREEK

SE-10-T24NR3W, Tazewell, IL

Built 1976 Load: 22.4 t ADT: 50

CH 8/FAS 782

Poor

Over: OWL CREEK

N CORP LIMT MULBERRY, Bond, IL

Built 1947 Load: 22.7 t ADT: 1,100

TR 336

Poor

Over: PIKE CREEK

2.5 MI SW LAMOILLE, Bureau, IL

Built 1910 Load: 22.7 t ADT: 25

FAU 7779

Poor

Over: CLEAR CREEK

3 MI SE BEARDSTOWN, Cass, IL

Built 1968 Load: 22.7 t ADT: 1,650

TR 26

Poor

Over: INDIAN CREEK

2.5 MI NW ARENZVILLE, Cass, IL

Built 1971 Load: 22.7 t ADT: 275

US 40(FAS 1707)

Poor

Over: N FORK EMBARRAS R

.4MI W MARTINSVILLE, Clark, IL

Built 1954 Load: 22.7 t ADT: 2,450

TR 5

Poor

Over: N FORK EMBARRASS R

3.1 MI NE WESTFIELD, Clark, IL

Built 1909 Load: 22.7 t ADT: 25

HARRISON ST

Poor

Over: ADDISON CR

0.5 MI E US45, Cook, IL

Built 1952 Load: 22.7 t ADT: 1,500

Ramp to NB LL LSD

Poor

Over: LAND

500E.AND 200N., Cook, IL

Built 1986 Load: 22.7 t ADT: 4,800

WILCOX ST

Poor

Over: ADDISON CR

0.72 M E MANHEIM P20, Cook, IL

Built 1928 Load: 22.7 t ADT: 450

CHATHAM ST

Poor

Over: CAL SLOUGH

0.1 M S 136TH P24, Cook, IL

Built 1963 Load: 22.7 t ADT: 750

Armitage Avenue

Poor

Over: Silver Creek

0.2 MI W of 25TH AVE, Cook, IL

Built 1950 Load: 22.7 t ADT: 4,000

Woodridge Drive

Poor

Over: Crabtree Creek

0.32 MI S ILL 33, DuPage, IL

Built 1986 Load: 22.7 t ADT: 2,900

TR 27 PELLA

Poor

Over: STREAM

1390 E 2600N, Ford, IL

Built 1970 Load: 22.7 t ADT: 75

PARKER RD - TR 335

Poor

Over: BADGER CR

NW-3-T5NR1E, Fulton, IL

Built 1978 Load: 22.7 t ADT: 50

TR 123

Poor

Over: N BRANCH OF LARRY CK

4 M SE NAUVOO, Hancock, IL

Built 1960 Load: 22.7 t ADT: 50

TR 34

Poor

Over: MOSQUITO CREEK

AT WARNER, Henry, IL

Built 1938 Load: 22.7 t ADT: 75

CH 17

Poor

Over: EDWARDS R. TRIB.

2 MI. E. OPHIEM, Henry, IL

Built 1949 Load: 22.7 t ADT: 275

TR 16

Poor

Over: STREAM

2.10 MI S. CO. LINE, Iroquois, IL

Built 1964 Load: 22.7 t ADT: 25

TR-264

Poor

Over: DRAINAGE DITCH

1.4 MI NW ST MARIE, Jasper, IL

Built 1909 Load: 22.7 t ADT: 25

TR-102

Poor

Over: TURKEY CREEK

4.5 MI NW NEWTON, Jasper, IL

Built 1955 Load: 22.7 t ADT: 100

FAU 6166

Poor

Over: EAGLE CREEK

E 16TH N 1399, LaSalle, IL

Built 1960 Load: 22.7 t ADT: 75

CAMPUS RD FAS 343

Poor

Over: E FK MAZON RIVER

1.0 M SO OF RTE 17, Livingston, IL

Built 1952 Load: 22.7 t ADT: 900

FAS 554(CH 32)

Poor

Over: FINLEY CREEK

5.0 MI E OF MACON, Macon, IL

Built 1909 Load: 22.7 t ADT: 1,150

TR 100

Poor

Over: LITTLE PLUM CREEK

.5 NW PRESTON, Randolph, IL

Built 1964 Load: 22.7 t ADT: 50

COUNTY HWY 37

Poor

Over: S FORK SANGAMON RIVE

1.5 MI N NEW CITY, Sangamon, IL

Built 1980 Load: 22.7 t ADT: 1,600

CH 5

Poor

Over: LITTLE SANDY CREEK

1 MI S GLASGOW, Scott, IL

Built 1968 Load: 22.7 t ADT: 150

N AFOLKEY ROAD

Poor

Over: BRUSH CREEK

3.0 MI E ORANGEVILLE, Stephenson, IL

Built 1914 Load: 22.7 t ADT: 200

KEEGAN ST(MS 4160)

Poor

Over: GRAPE CREEK

S END OF TILTON, Vermilion, IL

Built 1900 Load: 22.7 t ADT: 100

TR 261

Poor

Over: SWAN CR

NW-19-T8NR2W, Warren, IL

Built 1966 Load: 22.7 t ADT: 50

FAS-884

Poor

Over: SKILLET FORK

4 MI N CARMI, White, IL

Built 1949 Load: 22.7 t ADT: 550

TR-31 (River Road)

Poor

Over: Meridosia Ditch

AT R I CO LINE, Whiteside, IL

Built 1901 Load: 22.7 t

87TH STREET

Poor

Over: SPRING BROOK CR

0.2 M.E.PLAIN-NAP RD, Will, IL

Built 1961 Load: 22.7 t ADT: 6,600

GILBERT AVE

Poor

Over: NW DRAINAGEWAY

0.25 MI W OF KILBURN, Winnebago, IL

Built 1962 Load: 22.7 t ADT: 1,150

TR 177

Poor

Over: BR WALNUT CR

2 MI W EUREKA, Woodford, IL

Built 1925 Load: 22.7 t ADT: 125

TR 152

Poor

Over: WALNUT DITCH

1 MI W OF WALNUT, Bureau, IL

Built 1965 Load: 23.0 t ADT: 50

FIRST ST

Poor

Over: OWL CREEK

CITY OF FISHER, Champaign, IL

Built 1970 Load: 23.0 t ADT: 1,250

TR 241

Poor

Over: BRUSH CREEK

1.3 M ESE CLARKSDALE, Christian, IL

Built 1957 Load: 23.0 t ADT: 100

FAS 1781

Poor

Over: BOND BRANCH

1.0 MI N CARLYLE, Clinton, IL

Built 1963 Load: 23.0 t ADT: 950

CH 27 LISBON RD

Poor

Over: SARATOGA CREEK

0.71 MI S SHERRIL RD, Grundy, IL

Built 1985 Load: 23.0 t ADT: 1,000

Showing 26,451-26,500 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.