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:

EUCLID AVE

Over: IL 53

3.5 M S US 12, Cook, IL

Built 1963 ADT: 113,500

I- 55 WB RMP RYAN

Over: ARCHER; BNSF & IC RR

0.2 M E I-94, Cook, IL

Built 1964 ADT: 18,900

WENTWORTH AVE

Over: I- 55 STEVENSON

0.6 M E I94, Cook, IL

Built 1964 ADT: 86,900

I- 90,94 SB 2 I-55

Over: I- 55 STEVENSON

0.1 M W I-94, Cook, IL

Built 1964 ADT: 65,800

I- 57 NB

Over: 149TH ST

7.4 M SW IL 1, Cook, IL

Built 1967 ADT: 150

OHIO ST FEEDER E A

Over: KINGSBURY ST

0.6 M E I-94, Cook, IL

Built 1956 ADT: 650

I- 55 EB TO NB FRK

Over: I- 55 STEVENSON

0.6 M E I-94, Cook, IL

Built 1964 ADT: 6,700

I- 55 EB STEVENSON

Over: WESTERN AVE VIADUCT

2.5 M SW DAN RYAN, Cook, IL

Built 1963 ADT: 24,800

I- 55 EB TO RYAN N

Over: I- 55 STEVENSON

0.1 M E I-94, Cook, IL

Built 1964 ADT: 65,800

I- 90,94 SB TOI-55

Over: ARCHER, BNSF & IC RR

0.1 M W I-94, Cook, IL

Built 1964 ADT: 18,900

26TH ST

Over: FRANKLIN ST EXTEND

0.1 M S I-55, Cook, IL

Built 1964 ADT: 29,100

I- 90,94 SB TO I55

Over: CHI RIV &CANAL P-AVE

1.5 M SW I-290, Cook, IL

Built 1962 ADT: 4,150

I- 90,94 ELEV LOCA

Over: STEWART ST TO 29 ST

0.6 M S I-55, Cook, IL

Built 1962 ADT: 6,700

MICHIGAN CITY RD

Over: I- 94 BISHOP FORD

0.1 M S IL 83, Cook, IL

Built 1948 ADT: 139,000

26TH ST BYPASS

Over: IL 50 (CICERO AVE)

1.9 M S I-290, Cook, IL

Built 1964 ADT: 37,000

I- 55 EB TO I90,94

Over: CHI RIVER; CERMAK;RR

1.4 M SW I-290, Cook, IL

Built 1962 ADT: 9,100

I- 90,94 NWB JFK

Over: SACRAMENTO AVE

2.7 M NW IL 64, Cook, IL

Built 1957 ADT: 9,650

I- 90,94 REV JFK

Over: DIVERSEY BLVD

2.2 M NW IL 64, Cook, IL

Built 1958 ADT: 13,200

I- 90,94 REV JFK

Over: CALIFORNIA AVE

2.4 M NW IL 64, Cook, IL

Built 1958 ADT: 11,800

I- 90,94 NWB JFK

Over: CALIFORNIA AVE

2.4 M NW IL 64, Cook, IL

Built 1958 ADT: 11,800

I- 90,94 SEB JFK

Over: DIVERSEY BLVD

2.2 M NW IL 64, Cook, IL

Built 1958 ADT: 12,800

I- 55 WB ELEVATED

Over: ASHLAND AVE VIADUCT

2.6 M SW I-90,94, Cook, IL

Built 1963 ADT: 23,200

I- 55 EB ELEVATED

Over: ASHLAND AVE VIADUCT

2.6 M SW I-90,94, Cook, IL

Built 1963 ADT: 23,200

I-190 WB JFK

Over: I-294 NB to I-90

3.1 M W IL 43, Cook, IL

Built 1959 ADT: 38,200

STATE ST

Over: I- 55 STEVENSON

0.9 M E I-94, Cook, IL

Built 1965 ADT: 127,700

RYAN NB FRNT RD B

Over: CHINATOWN FEEDER

0.2 M S I-55, Cook, IL

Built 1964 ADT: 70,200

MILWAUKEE AVE

Over: OHIO FEEDER JFK XWAY

0.1 M E I-94, Cook, IL

Built 1959 ADT: 16,500

175TH ST

Over: I- 57

0.4 M N I-80, Cook, IL

Built 1965 ADT: 107,800

VOLLMER RD

Over: I- 57

1.5 M N US 30, Cook, IL

Built 1967 ADT: 85,900

FLOSSMOOR RD

Over: I- 57

2.5 M N US 30, Cook, IL

Built 1966 ADT: 75,700

FOSTER AVE

Over: I- 90 JFK & CTA

1.5 M NW IL 50, Cook, IL

Built 1958 ADT: 149,400

IL 72 (ORIOLE AVE

Over: I- 90 JFK & CTA

0.5 M W IL 43, Cook, IL

Built 1958 ADT: 183,900

AUSTIN AVE PED OP

Over: I-90 JFK

2 M W IL 50, Cook, IL

Built 1958 ADT: 159,000

SAYRE AVE

Over: I- 90 JFK & CTA

0.3 M E IL 43, Cook, IL

Built 1958 ADT: 179,500

AINSLIE ST

Over: I- 90 JFK & CTA

0.7 M NW IL 50, Cook, IL

Built 1958 ADT: 147,000

NATOMA AVE

Over: I- 90 JFK & CTA

0.8 M E IL 43, Cook, IL

Built 1958 ADT: 183,700

MILWAUKEE AVE

Over: I- 90 JFK & CTA

1 M NW IL 50, Cook, IL

Built 1959 ADT: 147,000

STEGER RD

Over: I- 57

2.5 M S US 30, Cook, IL

Built 1966 ADT: 100,000

I- 90,94 NWB JFK

Over: KIMBALL AVE

1.3 M SE IL 19, Cook, IL

Built 1958 ADT: 10,850

I- 90,94 RYAN ELEV

Over: 15TH TO 16TH STS

2 M S I-290, Cook, IL

Built 1962 ADT: 450

I- 90,94 RYAN ELEV

Over: 16TH TO 18TH STS

1 M N I-55, Cook, IL

Built 1962 ADT: 11,300

I- 90,94 RYAN ELEV

Over: 18TH TO 22ND STS

0.8 M N I-55, Cook, IL

Built 1962 ADT: 4,150

I- 90,94 RYAN ELEV

Over: 22ND TO SB CHI RVR

0.3 M N I-55, Cook, IL

Built 1962 ADT: 9,100

I- 90,94 RYAN ELEV

Over: S BR CHGO RIV TO CAN

2 M S I-290, Cook, IL

Built 1962 ADT: 18,900

I- 90,94 RYAN ELEV

Over: CANAL TO STEWART STS

0.4 M S I-55, Cook, IL

Built 1962 ADT: 675

I- 90,94 ELEV EXP

Over: STEWART AVE TO 28 PL

0.6 M S I-55, Cook, IL

Built 1962 ADT: 7,150

I- 90,94 NB ELV LO

Over: WELLS TO 29TH PL

0.6 M S I-55, Cook, IL

Built 1962 ADT: 6,700

IL 53 SB

Over: US 14&UPRR FAU3512

2.5 M S US 12, Cook, IL

Built 1964 ADT: 18,300

IL 53 SB

Over: INDUSTRIAL AVE

3 M S US 12, Cook, IL

Built 1963 ADT: 4,150

IL 53 SB

Over: KIRCHOFF RD

1.7 M N I-90, Cook, IL

Built 1963 ADT: 7,800

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