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:

C&NW RR

Over: WESTERN AVE

0.1 M N I94 P, Cook, IL

Built 1900 ADT: 26,900

B&OCT RR

Over: ASHLAND AVE

1 M S 127TH P4,24, Cook, IL

Built 1900 ADT: 17,700

B&OCT RR

Over: ASHLAND AVE

1.1 M S 127TH P4,24, Cook, IL

Built 1900 ADT: 17,700

B&OCT RR

Over: ASHLAND AVE

1.11 M S 127 P24, Cook, IL

Built 1934 ADT: 17,700

B&OCT RR

Over: ASHLAND AVE

AT 139TH ST P24, Cook, IL

Built 1900 ADT: 9,900

B&OCT RR

Over: ASHLAND AVE

N OF 141ST P24, Cook, IL

Built 1900 ADT: 9,900

PC RR

Over: CRAWFORD AVE

0.5 M S US 30 P21, Cook, IL

Built 1900 ADT: 20,000

EJ&E RR

Over: CRAWFORD AVE

0.8 M S US 30 P21, Cook, IL

Built 1900 ADT: 20,000

IL 43 (WAUKEGAN R

Over: I- 94 EDENS SPUR

0.5 M N IL 68, Cook, IL

Built 1958 ADT: 54,800

SOO (WICT) AMTK. R

Over: ILL 43 (WAUKEGAN RD)

.75 M N GOLF RD P13, Cook, IL

Built 1935 ADT: 18,900

IL 43 (HARLEM AVE

Over: I- 90 JFK & CTA

0.7 M N FOSTER AVE, Cook, IL

Built 1958 ADT: 174,500

CTA & UPRR

Over: ILL 43 (HARLEM AV)

1 M N I290 P16,20, Cook, IL

Built 1900 ADT: 32,500

IL 43 (HARLEM AVE

Over: I-290 & IL 110/CTA/RR

0.5 M N IL 38, Cook, IL

Built 1957 ADT: 143,300

C&IW RR

Over: ILL 43 (HARLEM AVE)

0.6 M N I55 P10,23, Cook, IL

Built 1900 ADT: 35,500

AT&SF RR

Over: ILL 43 (HARLEM AVE)

0.55 N I55 P10,23, Cook, IL

Built 1900 ADT: 35,500

IL 43 (HARLEM AVE

Over: I- 55 STEVENSON

0.47 MI N OF ARCHER, Cook, IL

Built 1964 ADT: 124,500

IL 43 (HARLEM AVE

Over: US 12,20 (95TH ST)

0.6 M N I-294, Cook, IL

Built 1961 ADT: 28,500

IL 43 (HARLEM AVE

Over: I- 80

0.5 M S 183RD ST, Cook, IL

Built 1967 ADT: 100,400

W.C.RR

Over: ILL 19 (IRVING PK)

0.6 M E I294, Cook, IL

Built 1900 ADT: 28,000

SOO (AMTK) RR

Over: ILL 19 (IRVING PK)

0.5 M W I94&90 P2C, Cook, IL

Built 1900 ADT: 19,700

C&NW RR

Over: ILL 19 (IRVING PK)

0.4 M W I94, Cook, IL

Built 1900 ADT: 19,700

C&NW RR

Over: ILL 19 (IRVING PK)

0.1 M W I90&94 P2C, Cook, IL

Built 1900 ADT: 28,800

C&NW RR

Over: ILL 19 (IRVING PK)

1 M E CHGO RIV P3C, Cook, IL

Built 1900 ADT: 29,000

US 12,45 MANNHEIM

Over: IL 64 (NORTH AVE)

0.7 M N US 20, Cook, IL

Built 1931 ADT: 40,900

EJ&E RR

Over: ILL 58

1 M W ILL 59 P7, Cook, IL

Built 1900 ADT: 11,800

C&NW RR

Over: ILL 58

0.7 M E US 45 P11, Cook, IL

Built 1900 ADT: 21,000

SOO (WICT) AMTK. R

Over: GOLF ROAD

0.5 M E ILL 43 P13, Cook, IL

Built 1900 ADT: 33,400

C&NW RR (WEST)

Over: DEMPSTER ST

0.5 W SHERIDAN P6, Cook, IL

Built 1900 ADT: 950

CTA (EAST)

Over: DEMPSTER ST

0.5 W SHERIDAN P6, Cook, IL

Built 1900 ADT: 950

CMSTP+P RR + CTA

Over: SHERIDAN RD

0.2 M N DEVON P1C, Cook, IL

Built 1900 ADT: 17,200

US 14 (PETERSON AV

Over: I- 94 EDENS

0.5 M S DEVON, Cook, IL

Built 1948 ADT: 137,900

C&NW RR

Over: US 14 (PETERSON AV)

0.7 M E I94 P2C, Cook, IL

Built 1900 ADT: 25,800

C&NW RR

Over: US 14 (PETERSON AV)

1 M E I94 P2C, Cook, IL

Built 1900 ADT: 25,800

C&NW RR

Over: US 14 (PETERSON AV)

0.7 M E WESTERN P3C, Cook, IL

Built 1900 ADT: 21,800

CTA

Over: BRYN MAWR AVE

0.25 M W LSD P3C, Cook, IL

Built 1900 ADT: 11,450

IL 53 SB

Over: US 12 (RAND RD)

0.5 M S IL 68, Cook, IL

Built 1965 ADT: 30,800

IL 53 FAP 342

Over: Anderson Dr MS 3240

1 M S US 12, Cook, IL

Built 1965 ADT: 1,500

IL 53 NB

Over: PALATINE RD

1.9 S IL 68, Cook, IL

Built 1964 ADT: 37,000

IL 53 NB

Over: US 14 NW HWY & UP RR

1 M S PALATINE RD, Cook, IL

Built 1964 ADT: 18,300

IL 53 NB

Over: INDUSTRIAL AVE

0.5 M N EUCLID, Cook, IL

Built 1963 ADT: 4,150

IL 53 NB

Over: KIRCHOFF RD

0.5 M S EUCLID, Cook, IL

Built 1963 ADT: 7,800

IL 53 NB

Over: IL 62 ALGONQUIN RD

0.3 M N I-90 NW TOLL, Cook, IL

Built 1962 ADT: 25,200

CRI&P RR

Over: US 6 (159TH ST)

0.2 M W ILL 50 P3, Cook, IL

Built 1900 ADT: 29,100

UP (CSXT) SOO RR

Over: US 6 (159TH ST)

1.3 M E ILL 1 P24, Cook, IL

Built 1941 ADT: 37,600

US 6 (159TH ST)

Over: I- 94 BISHOP FORD

0.7 E COTTAGE GROVE, Cook, IL

Built 1947 ADT: 138,700

39TH ST (PERSHING)

Over: RACINE AVE & RR

1.3 W I-94, Cook, IL

Built 1936 ADT: 2,450

C&WI RR

Over: 39TH ST

0.3 W I90&94 P5C,7C, Cook, IL

Built 1900 ADT: 15,800

39TH ST (PERSHING)

Over: I- 90,94 DAN RYAN

1.7 M S I-55, Cook, IL

Built 1962 ADT: 315,000

PC RR

Over: 39TH ST

0.1 E I90&94 P5C,7C, Cook, IL

Built 1900 ADT: 10,100

IL 50 (CICERO AVE

Over: I- 90 JFK & CTA

AT WILSON, Cook, IL

Built 1958 ADT: 138,300

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