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%.

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.

All Bridges in Illinois

TR 385

Fair

Over: LITTLE WABASH

4.5 MI NW SIGEL, Shelby, IL

Built 1924 Load: 26.2 t ADT: 100

ILL 177 / IL 158

Fair

Over: CREEK

1.5 mi E of IL 159, St. Clair, IL

Built 1959 Load: 26.2 t ADT: 7,300

W STATE LINE ROAD

Fair

Over: INDIAN CREEK

1.35 MI. W. ILL 73, Stephenson, IL

Built 1956 Load: 26.2 t ADT: 200

TR 155 A

Fair

Over: STONY CREEK

3.5 MI SE BISMARCK, Vermilion, IL

Built 1975 Load: 26.2 t ADT: 125

FAS-800

Fair

Over: LITTLE BONPAS CREEK

3 MI W MESA LAKE, Wabash, IL

Built 1949 Load: 26.2 t ADT: 950

TR 187

Fair

Over: BR ELKHORN CR

1.5 MI N-2MI E LIVEL, Washington, IL

Built 1901 Load: 26.2 t ADT: 10

TR-166

Fair

Over: LICK CREEK

2.25 MI S BROWNSVILL, White, IL

Built 1961 Load: 26.2 t ADT: 75

HICKORY HILLS RD

Fair

Over: BR OF ELKHORN CREEK

4 MI N. STERLING, Whiteside, IL

Built 1958 Load: 26.2 t ADT: 350

REGAN RD

Fair

Over: MARLEY CR

0.6 MI E PARKER RD, Will, IL

Built 1966 Load: 26.2 t ADT: 1,450

WEBER RD.

Fair

Over: LILLY CACHE CREEK

1.6M.N.OF I-55, Will, IL

Built 1988 Load: 26.2 t ADT: 31,400

WESLEYAN AND 22ND

Fair

Over: S.E. DRAINAGEWAY

WESLEYAN AND 22ND ST, Winnebago, IL

Built 1967 Load: 26.2 t ADT: 3,500

TR 132

Fair

Over: W BR PANTHER CR

1 MI W ROANOKE, Woodford, IL

Built 1928 Load: 26.2 t ADT: 200

TR 30

Fair

Over: INDIAN CREEK

2 MI NW ARENZVILLE, Cass, IL

Built 1984 Load: 26.6 t ADT: 25

CH 18(FAS 528)

Fair

Over: BLACK SLOUGH

1 MI W OF PHILO, Champaign, IL

Built 1983 Load: 26.6 t ADT: 2,650

CH 22(FAS 515)

Fair

Over: STREAM

4.3 MI N OF PENFIELD, Champaign, IL

Built 1934 Load: 26.6 t ADT: 175

FOURTH ST

Fair

Over: OWL CREEK

VILLAGE OF FISHER, Champaign, IL

Built 1970 Load: 26.6 t ADT: 100

FAS-798 (CH-8)

Fair

Over: LITTLE MUDDY CREEK

1.6 MI E BIBLE GROVE, Clay, IL

Built 1964 Load: 26.6 t ADT: 375

US 12,20,45 SB

Fair

Over: RR - CN & CANALS

0.9 M S I-55, Cook, IL

Built 1980 Load: 26.6 t ADT: 64,200

DEVON AVE

Fair

Over: N SHORE CHANNEL

6400 N & 3300 W, Cook, IL

Built 1930 Load: 26.6 t ADT: 26,700

HAYES DR

Fair

Over: JACKSON PK LAGOON

6300 S & 1900 E, Cook, IL

Built 1902 Load: 26.6 t ADT: 14,200

PERRY RD

Fair

Over: AFTON LATERAL

1500N 660E, DeKalb, IL

Built 1950 Load: 26.6 t ADT: 1,800

EAGLE ST.

Fair

Over: WEST BR.DUPAGE RIVER

0.1MI N Aurora Ave, DuPage, IL

Built 1960 Load: 26.6 t ADT: 850

IL 1 US 150(FAP 33

Fair

Over: BROUILLETTS CREEK

1.0 MI S OF US 36, Edgar, IL

Built 1952 Load: 26.6 t ADT: 3,250

TR-70

Fair

Over: VILLAGE CREEK

3.5 MI N ALBION, Edwards, IL

Built 1909 Load: 26.6 t ADT: 75

FAS-787

Fair

Over: NORTH FORK

E CARLYLE LAKE, Fayette, IL

Built 1966 Load: 26.6 t ADT: 200

4TH STREET 8400

Fair

Over: CONSOLIDATED RR

VANDALIA, Fayette, IL

Built 1909 Load: 26.6 t ADT: 575

ILL 95

Fair

Over: SPOON RIVER

2 MI W SMITHFIELD, Fulton, IL

Built 1932 Load: 26.6 t ADT: 1,400

TR 190A

Fair

Over: SLATER CREEK

2.0 MI NW BOWEN, Hancock, IL

Built 1965 Load: 26.6 t ADT: 25

TR 72

Fair

Over: N FK LARRY'S CREEK

3.0 SW POWELLTON, Hancock, IL

Built 1923 Load: 26.6 t ADT: 25

TR 101

Fair

Over: PETERS CREEK

NW Q SE 19 T12S R9E, Hardin, IL

Built 1957 Load: 26.6 t ADT: 125

FAI-57 SB

Fair

Over: BRANCH OF SPRING CR

3.1 MI S ONARGA INT, Iroquois, IL

Built 1968 Load: 26.6 t ADT: 8,750

FAI-57 NB

Fair

Over: BRANCH OF SPRING CR

3.1 MI S ONARGA INT, Iroquois, IL

Built 1968 Load: 26.6 t ADT: 8,750

TR 525

Fair

Over: DRAINAGE DITCH

N 14TH E 215, LaSalle, IL

Built 1964 Load: 26.6 t ADT: 75

TR-437

Fair

Over: COVEL CREEK

N 2250 E 1540, LaSalle, IL

Built 1972 Load: 26.6 t ADT: 100

TR 39

Fair

Over: E FORK MAZON R

2940 E, 2900 N, Livingston, IL

Built 1963 Load: 26.6 t ADT: 50

FAP 320(IL 121)

Fair

Over: WATERWAY

.5 M S PERSHING, Macon, IL

Built 1982 Load: 26.6 t ADT: 15,100

ILL 4

Fair

Over: EAST FORK CREEK

0.47 S BN RR, Macoupin, IL

Built 1957 Load: 26.6 t ADT: 4,800

TR 94

Fair

Over: BEAR CR

.5 N. CHESTEFIELD, Macoupin, IL

Built 1977 Load: 26.6 t ADT: 35

FAI 70 WB

Fair

Over: BRANCH OF SILVER CRK

1.25 M W ILL 4, Madison, IL

Built 1962 Load: 26.6 t ADT: 15,300

IL 140 & IL 111 EB

Fair

Over: E Fork of Wood River

1.1mi W of IL 255, Madison, IL

Built 1973 Load: 26.6 t ADT: 15,200

OLBRICH ROAD

Fair

Over: DRAIN DITCH RUSH CR

.9 MI S DUNHAM RD, McHenry, IL

Built 1921 Load: 26.6 t ADT: 275

FAU 6382

Fair

Over: LITTLE KICKAPOO CR

920 N, 1580 E, McLean, IL

Built 1962 Load: 26.6 t ADT: 700

TR 229

Fair

Over: KINGS MILL CREEK

2.3 MI NW 150 & 9, McLean, IL

Built 1968 Load: 26.6 t ADT: 275

TR 43

Fair

Over: BUCK CREEK

4.0 MI SSE GRIDLEY, McLean, IL

Built 1963 Load: 26.6 t ADT: 250

ROCKY HOLLOW RD

Fair

Over: KYTE CREEK

3.0 S.W.CHANA, Ogle, IL

Built 1966 Load: 26.6 t ADT: 100

TR 225

Fair

Over: KISER CRK TRIB.

2.0MI NW EL DARA, Pike, IL

Built 1992 Load: 26.6 t ADT: 50

ILL 154

Fair

Over: E TRIB TO PLUM CREEK

2.3 MI W OF SPARTA, Randolph, IL

Built 1934 Load: 26.6 t ADT: 2,900

CH-14

Fair

Over: FOX RIVER

2.5 MI SW DUNDAS, Richland, IL

Built 1973 Load: 26.6 t ADT: 300

RODMAN AVENUE

Fair

Over: MOLINE POOL

SE ARSENAL ISLAND, Rock Island, IL

Built 1981 Load: 26.6 t ADT: 9,550

TR 189 0.5 N

Fair

Over: GRIFFITH CREEK

1 MI E MECHANICSBURG, Sangamon, IL

Built 1957 Load: 26.6 t ADT: 50

Showing 6,101-6,150 of 27,743 bridges

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.

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.