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:

CANFIELD AVE

Over: I- 90 JFK

0.8 M W ILL 43, Cook, IL

Built 1958 ADT: 181,100

NAGLE AVE

Over: I- 90 JFK & CTA

2.6 M W IL 50, Cook, IL

Built 1958 ADT: 161,500

C&NW RR

Over: RIDGELAND AVE

1 M N I290 P16, Cook, IL

Built 1900 ADT: 15,200

RIDGELAND AVE

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

2 M W IL 50, Cook, IL

Built 1957 ADT: 172,400

CC RR

Over: RIDGELAND AVE

0.4 M N US 34 P16, Cook, IL

Built 1900 ADT: 10,000

TOUHY AVE

Over: I- 94 EDENS

1.5 M N US 14, Cook, IL

Built 1950 ADT: 129,700

GTW RR

Over: MARQUETTE RD

1.5 M W ILL 50 P6C, Cook, IL

Built 1900 ADT: 13,800

RIDGELAND AVE

Over: I- 80

1.7 M W I-57, Cook, IL

Built 1964 ADT: 90,800

NILES CENTER RD

Over: I- 94 EDENS

2.2 M N US 14, Cook, IL

Built 1950 ADT: 130,700

C&NW RR

Over: CENTRAL AVE

1.5 M S ILL 64 P4C, Cook, IL

Built 1900 ADT: 13,600

CENTRAL AVE & RAMP

Over: I- 55 STEVENSON

1.1 M SW IL 50, Cook, IL

Built 1964 ADT: 124,000

GROSS POINT RD

Over: I- 94 EDENS

1.7 M S OF DEMPSTER, Cook, IL

Built 1954 ADT: 130,700

CTA

Over: LINCOLN AV

LAWRNCE&WESTERN P3C, Cook, IL

Built 1900 ADT: 8,050

C&NW RR

Over: PULASKI RD

0.05 M S I94 P2C, Cook, IL

Built 1900 ADT: 16,900

SOO (AMTK) RR

Over: BELDON AVE

E OF CICERO P2C, Cook, IL

Built 1900 ADT: 18,800

SOO RR

Over: PULASKI RD

0.2 M N ILL 64 P2C, Cook, IL

Built 1900 ADT: 16,200

C&NW RR (1 OF 5)

Over: PULASKI RD

1.5 M S ILL 64 P4C, Cook, IL

Built 1900 ADT: 18,300

C&NW RR (2 OF 5)

Over: PULASKI RD

1.51 M S ILL 64 P4C, Cook, IL

Built 1900 ADT: 18,300

C&NW RR (3 OF 5)

Over: PULASKI RD

1.52 M S ILL 64 P4C, Cook, IL

Built 1900 ADT: 18,300

C&NW RR (4 OF 5)

Over: PULASKI RD

1.53 M S ILL 64 P4C, Cook, IL

Built 1900 ADT: 18,300

C&NW RR (5 OF 5)

Over: PULASKI RD

1.54 M S ILL 64 P4C, Cook, IL

Built 1900 ADT: 18,300

LAKE ST CTA

Over: PULASKI RD

0.75 M N I290 P4C, Cook, IL

Built 1900 ADT: 18,300

PULASKI RD

Over: I-290 - IL 110 & CTA

2.7 M W US 34, Cook, IL

Built 1953 ADT: 205,000

CSX-RR

Over: PULASKI RD

0.4 M S I290 P4C, Cook, IL

Built 1900 ADT: 14,500

DOUGLAS PK CTA

Over: PULASKI RD

1.4 M S I290 P4C, Cook, IL

Built 1900 ADT: 13,300

PULASKI RD & RAMPS

Over: I- 55 STEVENSON

0.92 M S OF 31ST ST, Cook, IL

Built 1963 ADT: 154,400

CNS & CTA RR

Over: MCCORMICK BLVD

0.2 M N HOWARD P13, Cook, IL

Built 1900 ADT: 30,500

LAKE ST CTA

Over: SACRAMENTO BLVD

0.6 M N I290 P4C, Cook, IL

Built 1900 ADT: 17,700

SACRAMENTO BLVD

Over: I-290 - IL 110 & CTA

1.4 M W US 34, Cook, IL

Built 1953 ADT: 115,400

B&OCT RR

Over: SACRAMENTO BLVD

0.45 M S I290 P4C, Cook, IL

Built 1900 ADT: 11,600

GM&O RR

Over: CALIFORNIA BLVD

0.3 M S I55 P4C, Cook, IL

Built 1900 ADT: 13,900

IHB RR(NORTH)

Over: CALIFORNIA BLVD

1.82 M S I55 P6C, Cook, IL

Built 1937 ADT: 13,000

IHB RR (SOUTH)

Over: CALIFORNIA BLVD

1.84 M S I55 P6C, Cook, IL

Built 1937 ADT: 13,000

C&NW RR

Over: CLYBOURN AVE

1.66 M NW ILL 64 P3C, Cook, IL

Built 1900 ADT: 10,300

B&OCT RR

Over: CANAL ST

0.96 M N I55 P5C, Cook, IL

Built 1900 ADT: 15,800

AT&SF RR

Over: CANAL ST

0.34 M S I55 P5C, Cook, IL

Built 1900 ADT: 13,100

CHB RR

Over: MORGAN ST

2.5 M N US 12&20 P4, Cook, IL

Built 1900 ADT: 1,350

CRI&P RR

Over: VINCINNES AVE

0.8 M N US 12&20 P4, Cook, IL

Built 1900 ADT: 8,550

WESTERN AVE(GREGOR

Over: VERMONT ST

JUST E WESTERN, Cook, IL

Built 1967 ADT: 8,600

WESTERN AVE

Over: CAL SG CHNL&RR&BRDWY

1.5 M N IL 83, Cook, IL

Built 1966 ADT: 4,300

C&NW RR

Over: ASHLAND AVE

0.9 M N I290 P5C, Cook, IL

Built 1900 ADT: 18,600

LAKE ST CTA

Over: ASHLAND AVE

0.62 M N I290 P5C, Cook, IL

Built 1900 ADT: 18,600

ASHLAND AVE

Over: I-290 - IL 110 & CTA

1 M W IL 1, Cook, IL

Built 1954 ADT: 172,800

B&OCT RR

Over: ASHLAND AVE

1.07 M S I290 P5C, Cook, IL

Built 1900 ADT: 21,600

C&NW RR

Over: ASHLAND AVE

1.14 M S I290 P5C, Cook, IL

Built 1900 ADT: 21,600

AT&SF RR

Over: ASHLAND AVE

0.5 M N I55 P5C, Cook, IL

Built 1900 ADT: 23,200

C&J RR

Over: ASHLAND AVE

1.35 M S I55 P7C, Cook, IL

Built 1900 ADT: 25,200

IHB RR

Over: ASHLAND AVE

2.4 M S I55 P7C, Cook, IL

Built 1900 ADT: 20,100

NYC RR

Over: LUTHER KING DR

0.2 M N I90 P7C, Cook, IL

Built 1900 ADT: 7,950

PC RR

Over: LUTHER KING DR

0.1 M N I90 P7C, Cook, IL

Built 1900 ADT: 7,950

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