Cook County, IL

2,185 public highway bridges

Cook County Bridge Snapshot

Cook County, Illinois contains 2,185 public highway bridges in the FHWA National Bridge Inventory. Roughly 13.1% are rated “Good,” 22.7% “Fair,” 6.6% “Poor,” and 6.6% are classified as structurally deficient — the federal designation for spans whose deck, superstructure, or substructure has been rated 4 or below on the 0–9 NBI scale. Structurally deficient does not mean unsafe to cross; it means the bridge is on the priority list for repair or replacement.

Inspections in IL are conducted by certified engineers from the state Department of Transportation on a 24-month cycle, and results are reported back to the FHWA each spring. The list below shows every NBI-tracked bridge in the county, sorted by inventory load rating. Use the “Sort by” controls to surface the lowest-rated spans first, and click any row for full inspection history, traffic counts, and condition trends.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

2,185

Total Bridges

13.1%

Good

6.6%

Poor

6.6%

Structurally Deficient

Condition Distribution

Good

13.1% (286)

Fair

22.7% (496)

Poor

6.6% (144)

SD

6.6% (144)

All Bridges (2,185)

Sort:

IL 394 SB

Over: RR - EJ&E AND NS

0.5 M S US 30, Cook, IL

Built 1955 Load: 40.2 t ADT: 30,700

IL 50 (CICERO AVE

Over: RR - CSXT

0.3 M S 115TH ST, Cook, IL

Built 1970 Load: 40.2 t ADT: 37,400

131ST ST

Over: RR - METRA

0.9 M E US 45, Cook, IL

Built 1995 Load: 40.2 t ADT: 6,750

IL 83 (ELMHURST R

Over: WHEELING DRN DITCH

0.3 M N IL 68, Cook, IL

Built 2003 Load: 40.2 t ADT: 11,400

IL 394 NB

Over: RR - CN

I80/294 & Ill 394, Cook, IL

Built 2006 Load: 40.2 t ADT: 89,200

STATE ST

Over: DEER CREEK

0.1 M S MAIN P2, Cook, IL

Built 1953 Load: 40.2 t ADT: 1,800

IL 19 (IRVING PAR

Over: RR - EJ&E

1.6 M W IL 59, Cook, IL

Built 1934 Load: 40.5 t ADT: 12,400

PULASKI RD

Over: SANITARY&SHIP CANAL

3700 S PULSKI ROAD, Cook, IL

Built 1930 Load: 40.5 t ADT: 18,800

ARGYLE ST

Over: N.BRANCH CHGO RIVER

5000 N & 3000 W, Cook, IL

Built 1909 Load: 40.5 t ADT: 1,475

IL 394

Over: NORTH CREEK

2.4 M S I-80, Cook, IL

Built 1954 Load: 40.8 t ADT: 89,200

IL 59

Over: WETLANDS

0.3 M N OF IL 19, Cook, IL

Built 1997 Load: 40.8 t ADT: 36,200

MADISON ST

Over: S BR CHICAGO RIV

373 W MADISON, Cook, IL

Built 1922 Load: 40.8 t ADT: 12,100

US 30 (LINCOLN HWY

Over: BUTTERFIELD CREEK

1.7 M W I-57, Cook, IL

Built 1954 Load: 41.1 t ADT: 19,000

31ST ST

Over: RR - BNSF & BRC

0.3 M E IL 50, Cook, IL

Built 1957 Load: 41.1 t ADT: 9,350

PULASKI RD NB

Over: RR - BRC

0.2 M S 71ST ST, Cook, IL

Built 1944 Load: 41.1 t ADT: 31,000

LAKEWOOD DRIVE

Over: NATURAL RAVINE

0.1 MI E SHERIDAN RD, Cook, IL

Built 1998 Load: 41.1 t ADT: 300

FAU-1560 (91ST ST)

Over: FLAG CREEK

0.3 M E DUPAGE P10, Cook, IL

Built 1932 Load: 41.5 t ADT: 1,200

IL 53

Over: SALT CREEK

0.1 M N CENTRAL, Cook, IL

Built 1962 Load: 41.8 t ADT: 66,400

I- 55 WB RMP IL171

Over: DES PLAINES RIVER

1.3 M SW IL 43, Cook, IL

Built 1963 Load: 41.8 t ADT: 5,300

DIXIE HWY

Over: CAL UNION DITCH

0.33 M S US 6, Cook, IL

Built 2002 Load: 41.8 t ADT: 11,800

ROY AVE

Over: ADDISON CR

0.1 MI N NORTH AVE, Cook, IL

Built 1966 Load: 41.8 t ADT: 1,050

IL 58 (GOLF RD)

Over: POPLAR CREEK

1 M W IL 59, Cook, IL

Built 1978 Load: 42.1 t ADT: 11,800

25th Avenue

Over: Union Pacific RR

.3 M S of Lake St, Cook, IL

Built 2016 Load: 42.1 t ADT: 21,500

I- 57 NB

Over: 143RD ST & RRS

6.5 M SW ILL 1, Cook, IL

Built 1967 Load: 42.4 t ADT: 54,400

I- 57 SB

Over: 143RD ST & RRS

6.5 M SW IL 1, Cook, IL

Built 1967 Load: 42.4 t ADT: 54,400

WESTERN AVE

Over: THORN CREEK

0.15 M S SAUK TR P, Cook, IL

Built 1982 Load: 42.4 t ADT: 14,600

IL 58 (GOLF RD)

Over: POPLAR CREEK

0.5 W BARRINGTON RD, Cook, IL

Built 2002 Load: 42.4 t ADT: 16,400

US 14 (CALDWELL AV

Over: N BR CHICAGO RIVER

0.8 M SE IL 43, Cook, IL

Built 1935 Load: 42.8 t ADT: 13,400

LAKE COOK RD

Over: W.C.RR.(SOO LINE)

1 M W MILW AV P25, Cook, IL

Built 1979 Load: 42.8 t ADT: 29,700

26TH ST

Over: DES PLAINES RIVER

1.3 M W IL 43, Cook, IL

Built 1929 Load: 43.4 t ADT: 13,000

I-294 SB

Over: DES PLAINES RIV

0.6 M S ILL 62 P11, Cook, IL

Built 1958 Load: 43.4 t ADT: 82,250

I- 94 BISHOP FORD

Over: LITTLE CAL RIVER

1.1 M S IL 83, Cook, IL

Built 1947 Load: 43.7 t ADT: 145,700

IL 53 W FRT RD/HIC

Over: SALT CR

0.8 M N I90 P18, Cook, IL

Built 1962 Load: 43.7 t ADT: 1,700

OAK PARK AVE

Over: TINLEY CREEK

0.1 M S OF 143RD ST, Cook, IL

Built 1999 Load: 43.7 t ADT: 11,400

IL 59

Over: RR - METRA

0.8 M S US-20, Cook, IL

Built 1993 Load: 44.1 t ADT: 36,700

IL 171 (1ST AVE)

Over: DES PLAINES RIVER

0.7 M N IL 64, Cook, IL

Built 1931 Load: 44.4 t ADT: 20,100

ASHLAND AVE

Over: LITTLE CAL RIVER

0.5 N 138TH ST, Cook, IL

Built 1930 Load: 44.7 t ADT: 17,700

IL 68 (DUNDEE RD)

Over: W F N BR CHICAGO RIV

0.5 M W ILL 43, Cook, IL

Built 1957 Load: 44.7 t ADT: 24,600

STONY ISLND TO I94

Over: RR - NS & WOODLAWN

E I-90,94, Cook, IL

Built 1970 Load: 44.7 t ADT: 39,800

US 45,IL 21,MILW.A

Over: WHEELING DRAIN DITCH

0.4 M N PALATINE RD, Cook, IL

Built 1996 Load: 44.7 t ADT: 28,200

I-294 SB

Over: W.C.RR

1 M N ILL 19 P9, Cook, IL

Built 1958 Load: 44.7 t ADT: 96,850

I-294 SB

Over: FLAG CR SOUTH

0.2 M N US 66 P10, Cook, IL

Built 1958 Load: 44.7 t ADT: 59,750

GLENVIEW RD

Over: M F N BR CHI RIV

1.3 M E ILL43 P14, Cook, IL

Built 1932 Load: 45.0 t ADT: 7,150

US 12,20 EB RMP IL

Over: RR - CSXT & RICHARD

0.1 M NW IL 43, Cook, IL

Built 1961 Load: 45.0 t ADT: 4,000

55TH ST

Over: FLAG CREEK

2 M W US 45, Cook, IL

Built 1958 Load: 45.0 t ADT: 16,600

111TH ST

Over: STONEY CREEK

1.0 M W OF IL 7, Cook, IL

Built 1989 Load: 45.0 t ADT: 12,300

IL 62 (OAKTON ST)

Over: DES PLAINES RIVER

0.4 M W I-294, Cook, IL

Built 1995 Load: 45.0 t ADT: 13,400

I-294

Over: CRYSTAL CREEK

0.1 M S IL-19, Cook, IL

Built 1959 Load: 45.0 t ADT: 173,100

US 30 (LINCOLN HWY

Over: LANSING DRNAGE DITCH

0.2 M SE US 30/IL83, Cook, IL

Built 2003 Load: 45.0 t ADT: 26,600

I-294 NB

Over: W.C.RR

1 M N ILL 19 P9, Cook, IL

Built 1958 Load: 45.0 t ADT: 96,850

Read our methodology — how this data is sourced, computed, and verified.

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Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial

Reviewed byPlainbridges Editorial, Plain Bridges Editorial Team · June 6, 2026