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 (NORTH)

Over: ASHLAND AVE

0.1 M N I90&94 P3C, Cook, IL

Built 1900 ADT: 26,200

C&NW RR (SOUTH)

Over: ASHLAND AVE

0.09 M N I90&94 P3C, Cook, IL

Built 1900 ADT: 26,200

GTW RR

Over: INDIANA AVE

0.04 M S US 6 P24, Cook, IL

Built 1900 ADT: 12,600

THORTON/VINCENNES

Over: I- 80, 294

1.2 M E IL 1, Cook, IL

Built 1958 ADT: 147,000

GLENWOOD DYER RD

Over: IL 394

3.1 M S I-80, Cook, IL

Built 1954 ADT: 49,300

CMSTP&P RR

Over: ILL 64 (NORTH AVE)

0.2 M E IL 50 P2C,4C, Cook, IL

Built 1900 ADT: 21,800

C&NW RR

Over: ILL 64 (NORTH AVE)

0.25 M E ILL50 P2C,4, Cook, IL

Built 1900 ADT: 21,800

SOO (AMTK) RR

Over: ILL 64 (NORTH AVE)

1.3 M E IL 50 P2C,4C, Cook, IL

Built 1900 ADT: 22,800

C&NW RR

Over: ILL 64 (NORTH AVE)

0.1 M E I94 P3C,5C, Cook, IL

Built 1900 ADT: 28,500

CERMAK RD (22ND ST

Over: RR - IHB & GARDNER

0.8 M E US 45, Cook, IL

Built 1961 ADT: 1,550

CERMAK RD (22ND ST

Over: 25TH AVE

1 M E US 45, Cook, IL

Built 1961 ADT: 7,450

BRC RR (WEST)

Over: CERMAK (22ND ST)

0.2 M E IL 50 P4C,16, Cook, IL

Built 1900 ADT: 15,100

BRC RR (EAST)

Over: CERMAK (22ND ST)

0.22 M E IL50 P4C,16, Cook, IL

Built 1900 ADT: 15,100

BN RR

Over: CERMAK (22ND ST)

1.7 M E ILL 50 P4C, Cook, IL

Built 1900 ADT: 13,600

RR

Over: CERMAK (22ND ST)

0.19 M W WESTERN P4C, Cook, IL

Built 1900 ADT: 13,300

RR

Over: CERMAK (22ND ST)

0.17 M W WESTERN P4C, Cook, IL

Built 1900 ADT: 13,300

RR

Over: CERMAK (22ND ST)

0.15 M W WESTERN P4C, Cook, IL

Built 1900 ADT: 13,300

PC RR

Over: CERMAK (22ND ST)

0.3 M E I90&94 P5C, Cook, IL

Built 1900 ADT: 11,950

GM&O RR

Over: CERMAK (22ND ST)

0.32 M E I90&94 P5C, Cook, IL

Built 1900 ADT: 11,950

PC RR

Over: CERMAK (22ND ST)

0.33 M E I90&94 P5C, Cook, IL

Built 1900 ADT: 11,950

IC RR

Over: ILL 56(BUTTERFIELD)

JUST W I290 P20, Cook, IL

Built 1959 ADT: 13,800

IHB RR

Over: WASHINGTON BLVD

0.74 M EUS45 P20, Cook, IL

Built 1900 ADT: 8,750

ABAND N S RR(N)+CT

Over: US 41 (SKOKIE BLVD)

0.33 M N LINCOLN P13, Cook, IL

Built 1900 ADT: 17,100

ABAND N S RR(S)+CT

Over: US 41 (SKOKIE BLVD)

0.32 M N LINCOLN P13, Cook, IL

Built 1900 ADT: 17,100

C&NW RR (N)

Over: US 41 (SKOKIE BLVD)

0.18 M N LINCOLN P13, Cook, IL

Built 1934 ADT: 17,100

C&NW RR

Over: ILL 50 (CICERO AVE)

0.45 M N I90 P2C, Cook, IL

Built 1900 ADT: 17,300

C&NW RR

Over: EMERSON RD&RIDGE AVE

0.9 M W LAKE MCH P6, Cook, IL

Built 1954 ADT: 1,150

ABANDONED NS RR

Over: EMERSON RD

0.6 M W LAKE MCH P6, Cook, IL

Built 1900 ADT: 1,150

CENTRAL AVE

Over: I- 90 JFK & CTA

1.4 M NW IL 50, Cook, IL

Built 1952 ADT: 156,600

C&NW RR

Over: NCENTRAL AVE

0.01 M N I90 P2C, Cook, IL

Built 1900 ADT: 14,100

C&NW RR

Over: DIVERSEY AVE

0.1 M E I94 P2C, Cook, IL

Built 1900 ADT: 13,200

W.C.RR

Over: ILL 72 (HIGGINS RD)

0.17 M E US 45 P11, Cook, IL

Built 1934 ADT: 16,500

C&NW RR

Over: ADDISON AVE

0.23 M E ILL 50 P2C, Cook, IL

Built 1900 ADT: 14,300

SOO (AMTK) RR

Over: ADDISON AVE

0.41 M E ILL 50 P2C, Cook, IL

Built 1900 ADT: 14,300

ADDISON ST

Over: I- 90,94 JFK

3.8 M NW IL 64, Cook, IL

Built 1958 ADT: 205,000

C&NW RR

Over: ADDISON AVE

0.01 M W I94 P2C, Cook, IL

Built 1900 ADT: 17,400

C&NW RR

Over: ADDISON&LINCOLN AVES

0.01 M W LINCOLN P3C, Cook, IL

Built 1900 ADT: 15,200

IHB RR

Over: ST CHARLES RD

0.8 M E US 45 P20, Cook, IL

Built 1900 ADT: 10,400

WOLF RD

Over: PALATINE RD

2.2 M S IL 68, Cook, IL

Built 1963 ADT: 28,300

C&NW RR (ABANDONED

Over: WOLF RD

0.3 M N ILL 56 P20, Cook, IL

Built 1900 ADT: 10,100

CAZE RR (ABANDONED

Over: WOLF RD

0.29 M N ILL 56 P20, Cook, IL

Built 1900 ADT: 10,100

25TH AVE

Over: I-290 IKE - IL 110 CKC

3 M W IL 43, Cook, IL

Built 1951 ADT: 165,000

CC RR

Over: 25TH AVE

0.8 M S I290 P20, Cook, IL

Built 1900 ADT: 14,000

5TH AVE

Over: I-290 IKE - IL 110 CKC

1.7 M W IL 43, Cook, IL

Built 1951 ADT: 174,100

17TH AVE

Over: I-290 IKE - IL 110 CKC

2.5 M W IL 43, Cook, IL

Built 1951 ADT: 161,800

IL 171 (1ST AVE)

Over: I-290 IKE - IL 110 CKC

1.5 M W IL 43, Cook, IL

Built 1951 ADT: 164,000

BN RR

Over: FIRST AVE

0.7 M N US 34 P20, Cook, IL

Built 1936 ADT: 36,500

BOCT (WC) RR

Over: DES PLAINES AVE

0.1 M N I290 P20, Cook, IL

Built 1900 ADT: 16,900

CTA

Over: DES PLAINES AVE

0.05 M N I290 P20, Cook, IL

Built 1900 ADT: 16,900

DES PLAINES AVE

Over: I-290 IKE - IL 110 CKC

0.5 M W IL 43, Cook, IL

Built 1957 ADT: 163,500

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