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: ILL 50 (CICERO AVE)

0.13 M N MONTRSE P2C, Cook, IL

Built 1900 ADT: 16,200

SOO (AMTK) RR

Over: ILL 50 (CICERO AVE)

0.15 M N MONTRSE P2C, Cook, IL

Built 1900 ADT: 16,200

SOO RR

Over: ILL 50 (CICERO AVE)

0.4 M N ILL 64 P2C, Cook, IL

Built 1900 ADT: 25,800

LAKE ST CTA

Over: ILL 50 (CICERO AVE)

1 M N I290 P4C, Cook, IL

Built 1900 ADT: 26,600

IL 50 (CICERO AVE

Over: I-290 - IL 110 & CTA

AT 600 S PAGE, Cook, IL

Built 1954 ADT: 181,400

RR - BNSF

Over: IL 50 (CICERO AVE)

1.9 M S I-290, Cook, IL

Built 1964 ADT: 37,000

RR - BNSF

Over: 26TH ST

0.1 M E IL 50, Cook, IL

Built 1964 ADT: 10,150

RR - BNSF

Over: IL 50 (CICERO AVE)

0.1 M N I-55, Cook, IL

Built 1963 ADT: 50,400

GM&O RR

Over: ILL 50 (CICERO AVE)

0.1 M S I55 P6C,23, Cook, IL

Built 1963 ADT: 58,700

IHB RR

Over: ILL 50 (CICERO AVE)

0.52 N 55TH P6C, Cook, IL

Built 1955 ADT: 48,700

BRC RR

Over: ILL 50 (CICERO AVE)

0.5 N 55TH P6C,23, Cook, IL

Built 1955 ADT: 48,700

IL 50 (CICERO AVE

Over: I-294 TRI STATE TOLL

0.1 M N 127TH, Cook, IL

Built 1958 ADT: 133,000

CRI&P RR

Over: ILL 50 (CICERO AVE)

0.2 M N US 6 P3, Cook, IL

Built 1900 ADT: 25,700

N&W RR

Over: ILL 83 (CAL SAG RD)

0.05 M E ILL 7 P19, Cook, IL

Built 1900 ADT: 13,000

CRI&P RR(WEST)

Over: BROADWAY

0.1 M W WESTERN P26, Cook, IL

Built 1900 ADT: 4,300

CRI&P RR(EAST)

Over: BROADWAY

0.09 W WESTERN P26, Cook, IL

Built 1900 ADT: 4,300

RR - IHB

Over: US 12,20 (95TH ST)

0.2 M W IL 43, Cook, IL

Built 1961 ADT: 28,500

US 12,20 (95TH ST)

Over: I- 94 DAN RYAN

0.4 M N I-57, Cook, IL

Built 1959 ADT: 255,000

IC RR

Over: US 12,20 (95TH ST)

1 M E I94 P8C, Cook, IL

Built 1900 ADT: 16,300

RI & BL RR

Over: US 12,20 (95TH ST)

1.7 M E I90 P8C, Cook, IL

Built 1900 ADT: 15,200

RI RR

Over: US 12,20 (95TH ST)

1.6 M E I94 P8C, Cook, IL

Built 1900 ADT: 15,200

ABANDONED RR

Over: US 12,20 (95TH ST)

0.05 M W STONEY P8C, Cook, IL

Built 1900 ADT: 15,200

CRIP&P RR

Over: US 12,20 (95TH ST)

0.6 M W I90 P8C, Cook, IL

Built 1900 ADT: 12,200

CRI&P RR(EAST)

Over: US 12,20 (95TH ST)

0.55 M W I90 P8C, Cook, IL

Built 1900 ADT: 12,200

PC RR (WEST)

Over: US 12,20 (95TH ST)

0.17 M E I90 P8C, Cook, IL

Built 1900 ADT: 6,150

PC RR (EAST)

Over: US 12,20 (95TH ST)

0.16 M E I90 P8C, Cook, IL

Built 1900 ADT: 6,150

NYC RR (WEST)

Over: US 12,20 (95TH ST)

0.16 M E I90 P8C, Cook, IL

Built 1900 ADT: 6,150

NYC RR (EAST)

Over: US 12,20 (95TH ST)

0.13 M W I90 P8C, Cook, IL

Built 1900 ADT: 6,150

B&O RR

Over: US 12,20 (95TH ST)

0.1 M E I90 P8C, Cook, IL

Built 1900 ADT: 6,150

BRC & CRI&P RR

Over: STONY ISLAND AVE

0.1 M N 95TH P8C, Cook, IL

Built 1934 ADT: 36,900

NYC & STL RR

Over: STONY ISLAND AVE

0.2 M S 95TH P8C, Cook, IL

Built 1936 ADT: 52,500

LASALLE ST STATION

Over: CONGRESS XWAY

0.8 M E I90&94 P5C, Cook, IL

Built 1900 ADT: 44,400

CONGRESS PARKWAY

Over: FRANKLIN ST&WACKER

EAST OF CHICAGO RIV, Cook, IL

Built 1954 ADT: 15,600

I-290 IKE

Over: CANAL ST THRU DESPL

0.2 M E I-90&94, Cook, IL

Built 1952 ADT: 10,400

IC RR

Over: S CHICAGO AVE

NW OF 76TH P7C, Cook, IL

Built 1900 ADT: 9,900

CRIP&P RR

Over: S CHICAGO AVE

0.1 M NW 95TH P8C, Cook, IL

Built 1900 ADT: 7,700

IHB RR (WEST)

Over: ROOSEVELT RD

0.23 E ILL 50 P4C,16, Cook, IL

Built 1900 ADT: 15,000

IHB RR (EAST)

Over: ROOSEVELT RD

0.24 E ILL 50 P4C,16, Cook, IL

Built 1900 ADT: 15,000

B&O RR

Over: ROOSEVELT RD

0.2 M W WESTERN P4C, Cook, IL

Built 1900 ADT: 13,400

PC RR

Over: ROOSEVELT RD

0.19 M W WESTERN P4C, Cook, IL

Built 1900 ADT: 13,400

DOUGLAS PARK CTA

Over: ROOSEVELT RD

2 M W I-90&94 P5C, Cook, IL

Built 1900 ADT: 20,800

ROOSEVELT RD

Over: I- 90,94 DAN RYAN

0.6 M S I-290, Cook, IL

Built 1961 ADT: 206,100

CTA

Over: ROOSEVELT RD

0.9 M E I90&94 P5C, Cook, IL

Built 1900 ADT: 20,200

IL 171 SB FIRST AV

Over: S&S CANAL

0.2 M SE I-55, Cook, IL

Built 1963 ADT: 10,600

IL 171 NB FIRST AV

Over: S&S CANAL

0.2 M SE I-55, Cook, IL

Built 1963 ADT: 10,600

AT&SF RR

Over: ARCHER AVE & 47TH ST

1.7 M E ILL 50 P6, Cook, IL

Built 1900 ADT: 25,200

B&OCT RR

Over: ARCHER AVE

0.2 M E 39TH P4C,5C, Cook, IL

Built 1900 ADT: 21,900

PC RR

Over: ARCHER AVE

0.25 NE 39TH P4C,5C, Cook, IL

Built 1900 ADT: 21,900

C&NW RR

Over: ILL 64 (NORTH AVE)

1.66 M W US 45 P9,20, Cook, IL

Built 1900 ADT: 28,700

C&NW RR

Over: ILL 64 (NORTH AVE)

1.64 M W US 45 P9,20, Cook, IL

Built 1900 ADT: 28,700

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