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 192

Good

Over: WALNUT CR

SW-7-T13NR3E, Knox, IL

Built 1900 Load: 17.5 t ADT: 25

CARTER RD

Good

Over: BR OF GREEN RIVER

0.7 MI N MAYTOWN RD, Lee, IL

Built 1974 Load: 17.5 t ADT: 50

CH-20

Good

Over: N END SALEM RESERV0I

1.5 MI N SALEM, Marion, IL

Built 1953 Load: 17.5 t ADT: 700

FAS 417 - CH 11

Good

Over: S BRANCH CROOKED CR

NW-16-T7NR4W, McDonough, IL

Built 1937 Load: 17.5 t ADT: 325

COUNTY LINE ROAD

Good

Over: BR OF MUD RUN

N.CTR-4-AKRON, Peoria, IL

Built 1900 Load: 17.5 t ADT: 10

TR 161

Good

Over: CHICKEN CREEK

1 MI W OF ILL 13&127, Perry, IL

Built 1920 Load: 17.5 t ADT: 150

FAS 1930

Good

Over: DOG CREEK

3.2 MI S BAY CITY, Pope, IL

Built 1970 Load: 17.5 t ADT: 125

CH 15

Good

Over: UNNAMED CREEK

PORT BYRON, Rock Island, IL

Built 1941 Load: 17.5 t ADT: 625

E. HICKORY GROVE R

Good

Over: CEDAR CREEK

5 MI N ILL 75, Stephenson, IL

Built 1957 Load: 17.5 t ADT: 150

TR 306

Good

Over: STREAM

SE COR-28-T23NR2W, Tazewell, IL

Built 1960 Load: 17.5 t ADT: 50

FAS 1887

Good

Over: SUGAR CREEK BRANCH

7 MI S CRAB ORCHARD, Williamson, IL

Built 1953 Load: 17.5 t ADT: 300

TR-1302 Sunset Dr

Good

Over: N Br Chic Rv

0.2 E SUNSET RGE P14, Cook, IL

Built 1979 Load: 17.8 t ADT: 450

TR 253

Good

Over: CREEK

1.25 MI N FRANKLIN, Morgan, IL

Built 1960 Load: 17.8 t ADT: 25

FREE CHURCH ROAD

Good

Over: N KINNIKINNICK CREEK

6.5 MI NE ROSCOE, Boone, IL

Built 1973 Load: 18.1 t ADT: 200

FAS-711 (CH 25)

Good

Over: FULFER CREEK

6 MI S ALTAMONT, Effingham, IL

Built 1938 Load: 18.1 t ADT: 1,350

W. PRAIRIE ROAD

Good

Over: BR OF YELLOW CREEK

5.0 MI SW OF FREEPOR, Stephenson, IL

Built 1969 Load: 18.1 t ADT: 50

CH 9

Good

Over: HACKETT BRANCH

3.2 MI SE OF TUSCOLA, Douglas, IL

Built 1942 Load: 18.5 t ADT: 300

TR 112 MIDDLE ROAD

Good

Over: SARATOGA CREEK

0.01 MI S AIRPORT RD, Grundy, IL

Built 1986 Load: 18.5 t ADT: 125

FAU 1033 (HIRSCH S

Good

Over: ADDISON CR

0.3 M S NORTH P20, Cook, IL

Built 1960 Load: 18.8 t ADT: 1,000

FAS 918 CH18

Good

Over: GLENNS CREEK

S LINE SEC 34-7-2, Jackson, IL

Built 1953 Load: 18.8 t ADT: 1,500

TR-364

Good

Over: TRIB SEVEN MILE CK

2 MI SE MT VERNON, Jefferson, IL

Built 1909 Load: 18.8 t ADT: 700

TR 78

Good

Over: LOCAL DRAINAGE

2 N 1 MI W BROADWELL, Logan, IL

Built 1957 Load: 18.8 t ADT: 50

TR 608

Good

Over: BRANCH MACKINAW RV

3.5 MI SE ANCHOR, McLean, IL

Built 1971 Load: 18.8 t ADT: 75

FAS 926

Good

Over: BIG CREEK TRIB

CH14 IN DONGOLA, Union, IL

Built 1953 Load: 18.8 t ADT: 950

ILL 96

Good

Over: HOWELL HOLLOW CRK BR

0.41 S PIKE CO LINE, Calhoun, IL

Built 1901 Load: 19.1 t ADT: 700

TR 27

Good

Over: DRAINAGE DITCH

3 MI NE OF NEWMAN, Douglas, IL

Built 1957 Load: 19.1 t ADT: 75

Hillview Eldred Ro

Good

Over: Shaffer Hollow Creek

0.51 N OF ELDRED, Greene, IL

Built 1940 Load: 19.1 t ADT: 400

TR 316A

Good

Over: SPILLWAY

3.0 MI S COFFEEN, Montgomery, IL

Built 1964 Load: 19.1 t ADT: 75

TR 181

Good

Over: MAUVAISE TERRE CREEK

1 MI W ORLEANS, Morgan, IL

Built 1961 Load: 19.1 t ADT: 50

TR 551

Good

Over: BNRR

0.6M W OF ILL 37, Williamson, IL

Built 1900 Load: 19.1 t ADT: 25

TR 181 A

Good

Over: STREAM

1 MI NE OGDEN, Champaign, IL

Built 1970 Load: 19.4 t ADT: 150

CENTRAL AV

Good

Over: MIDLOTHIAN CREEK

0.2 MI S 167TH ST, Cook, IL

Built 1952 Load: 19.4 t ADT: 4,150

FAS-1884

Good

Over: STINKING CR LATERAL

4 MI W GRAYVILLE, Edwards, IL

Built 1932 Load: 19.4 t ADT: 375

4TH STREET 8400

Good

Over: CREEK

VANDALIA, Fayette, IL

Built 1941 Load: 19.4 t ADT: 375

TR-216

Good

Over: VERMILION CREEK

1.5 MI SW SALEM, Marion, IL

Built 1909 Load: 19.4 t ADT: 1,150

TR-403

Good

Over: RACCOON CREEK

3 MI E CENTRALIA, Marion, IL

Built 1909 Load: 19.4 t ADT: 125

TR 165

Good

Over: ELIZA LAKE DITCH

2 Mi N of New Boston, Mercer, IL

Built 2015 Load: 19.4 t ADT: 50

FAS 373 - CH 3

Good

Over: MUD RUN

SE COR-27-T12NR7E, Stark, IL

Built 1948 Load: 19.4 t ADT: 275

TR 99

Good

Over: BRADSHAW CREEK

2 MI W FAS1926, Union, IL

Built 1977 Load: 19.4 t ADT: 25

STROPES ROAD

Good

Over: DRAINAGE DITCH

4 MI NW ERIE, Whiteside, IL

Built 1971 Load: 19.4 t ADT: 100

TR 7

Good

Over: STREAM

0.4 MI W OF DIONA, Coles, IL

Built 1986 Load: 19.8 t ADT: 75

TR 103

Good

Over: SALT CREEK

1 MI SW PARNELL, De Witt, IL

Built 1968 Load: 19.8 t ADT: 50

TR 142

Good

Over: STREAM

4.5 MI SW OF PARIS, Edgar, IL

Built 1973 Load: 19.8 t ADT: 175

TR 138

Good

Over: BROUILLETTS CREEK

2 MI NE OF METCALF, Edgar, IL

Built 1974 Load: 19.8 t ADT: 75

CH 22 FAS 473

Good

Over: WATERWAY

3 MI N CROPSEY, Livingston, IL

Built 1963 Load: 19.8 t ADT: 150

CH 22 FAS 473

Good

Over: WATERWAY

1 MI S, 4 MI W STRAW, Livingston, IL

Built 1963 Load: 19.8 t ADT: 150

FAS 732

Good

Over: MASSA CREEK

2MI E PALMYRA, Macoupin, IL

Built 1939 Load: 19.8 t ADT: 750

CARTHAGE ROAD

Good

Over: CLEAR CREEK

7 MI S OREGON, Ogle, IL

Built 1965 Load: 19.8 t ADT: 25

WINNESHEIK ROAD

Good

Over: PINK CREEK

5.0 MI S OF DAVIS, Stephenson, IL

Built 1968 Load: 19.8 t ADT: 75

HERITAGE MEADOW DR

Good

Over: WOLF CREEK

0.3 MI W IL59, Will, IL

Built 2004 Load: 19.8 t ADT: 1,350

Showing 14,201-14,250 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.