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:

RR - CN EAST BRIDG

Over: IL 64 (NORTH AVE)

1.6 M W IL 43, Cook, IL

Built 1963 ADT: 38,500

SOO (WICT) AMTRAK

Over: EAST LAKE AVENUE

0.5 MI W ILL 43, Cook, IL

Built 1961 ADT: 22,400

LEHIGH AVE

Over: EAST LAKE AVE EXT

0.5 M W ILL 43 P14, Cook, IL

Built 1961 ADT: 20,600

I-290 SB

Over: ELECTRIC AV&PRAIRIE

1.5 M S IL 64, Cook, IL

Built 1952 ADT: 1,300

I-290 NB

Over: ELECTRIC AV&PRAIRIE

1.5 M S IL 64, Cook, IL

Built 1952 ADT: 1,300

ST CHARLES RD

Over: I-290

1.1 M S IL 64, Cook, IL

Built 1960 ADT: 115,700

RR - UP

Over: I- 55 STEVENSON

0.3 M E I-94, Cook, IL

Built 1966 ADT: 65,800

STEWART AVE

Over: I- 55 STEVENSON

0.4 M E I-94, Cook, IL

Built 1966 ADT: 65,800

CANAL ST

Over: I- 55 STEVENSON

0.3 M E I-94, Cook, IL

Built 1965 ADT: 65,800

I- 94 NB TO I-55 W

Over: I- 55 STEVENSON

0.1 M W I-94, Cook, IL

Built 1964 ADT: 65,800

91ST ST

Over: I- 94 RYAN & CTA

0.5 M N US 12, Cook, IL

Built 1958 ADT: 263,300

87TH ST

Over: I- 94 RYAN & CTA

1 M N US 12,20, Cook, IL

Built 1959 ADT: 242,200

83RD ST

Over: I- 94 RYAN & CTA

1.5 M N US 12, Cook, IL

Built 1959 ADT: 264,600

79TH ST

Over: I- 94 RYAN & CTA

2 M N US 12, Cook, IL

Built 1959 ADT: 268,800

75TH ST

Over: I- 94 RYAN & CTA

2.5 M N 95TH ST, Cook, IL

Built 1958 ADT: 252,900

71ST ST

Over: I- 94 RYAN & CTA

3 M N 95TH ST, Cook, IL

Built 1958 ADT: 263,200

67TH ST (MARQUETTE

Over: I- 94 RYAN & CTA

3.5 M N OF 95TH ST, Cook, IL

Built 1960 ADT: 301,400

63RD ST

Over: I- 90,94 RYAN & CTA

I-94 AT 63RD ST, Cook, IL

Built 1960 ADT: 265,900

59TH ST

Over: I- 90,94 RYAN & CTA

5 M S I-55, Cook, IL

Built 1961 ADT: 343,700

57TH ST

Over: I- 90,94 RYAN & CTA

0.2 M S 55TH ST, Cook, IL

Built 1962 ADT: 326,000

55TH ST EB GARFLD

Over: I- 90,94 RYAN & CTA

AT 55TH ST, Cook, IL

Built 1962 ADT: 294,200

55TH ST WB GARFLD

Over: I- 90,94 RYAN & CTA

AT 55TH ST, Cook, IL

Built 1962 ADT: 294,200

ROOT ST

Over: I- 90,94 RYAN & CTA

2 M S I-55, Cook, IL

Built 1961 ADT: 320,400

43RD ST

Over: I- 90,94 RYAN & CTA

2.1 M S I-55, Cook, IL

Built 1961 ADT: 308,200

47TH ST

Over: I- 90,94 RYAN & CTA

2.7 M S I-55, Cook, IL

Built 1960 ADT: 312,900

51ST ST

Over: I- 90,94 RYAN & CTA

3.2 M S I-55, Cook, IL

Built 1962 ADT: 299,600

33RD ST

Over: I- 90,94 RYAN & CTA

1.8 M N 47TH ST, Cook, IL

Built 1961 ADT: 246,400

31ST ST

Over: I- 90,94 RYAN & CTA

0.9 M S I-55, Cook, IL

Built 1961 ADT: 246,400

35TH ST

Over: I- 90,94 RYAN & CTA

1.3 M S I-55, Cook, IL

Built 1961 ADT: 312,900

TAYLOR ST

Over: I- 90,94 RYAN

0.4 M S OF I-290, Cook, IL

Built 1960 ADT: 206,100

WACKER DR SB UPPER

Over: WACKER DR SB LOWER

.1 MI S OF JACKSON, Cook, IL

Built 2012 ADT: 20,900

KEDZIE AVE

Over: I- 57

0.6 M S OF I-294, Cook, IL

Built 2012 ADT: 12,400

Lake Cook Rd

Over: I-294 NB

2 Mi W of Ill 43, Cook, IL

Built 2008 ADT: 130,100

IL 171 (CUMBERLAND

Over: I- 90 JFK & CTA

1.5M W of IL43, Cook, IL

Built 2014 ADT: 180,900

I- 57

Over: I-294

0.6 M S OF IL 83, Cook, IL

Built 2011 ADT: 102,100

I- 57

Over: I- 57NB 2 I-294NB

.04M N of I294/I57, Cook, IL

Built 2011 ADT: 15,200

RR - METRA TRK 1&2

Over: I- 90,94 DAN RYAN

.17M S OF 63RD, Cook, IL

Built 2013 ADT: 301,400

RR - METRA TRK 3

Over: I- 90,94 DAN RYAN

0.17 M S OF 63RD ST, Cook, IL

Built 2013 ADT: 301,400

OHIO ST WB TO I94E

Over: I- 94

0.24 M W OF GRAND AV, Cook, IL

Built 2014 ADT: 193,400

OHIO ST WB TO I94E

Over: I- 94EB RMP 2 OHIOEB

.1M W OF I94, Cook, IL

Built 2014 ADT: 15,900

US 6 (159TH ST)

Over: I-294 TRI-STATE TOLL

0.3 M W Western Ave, Cook, IL

Built 2018 ADT: 104,500

I- 55 WB STEVENSON

Over: ML KING DR & RAMP

1.3M E of I94, Cook, IL

Built 2015 ADT: 12,600

I- 55 EB to US 41N

Over: US 41 LSD & CN RR

1.6 M E of -I94, Cook, IL

Built 2017 ADT: 68,700

US 41 NB to I-55 W

Over: US 41 LSD

1.6 M E of I-94, Cook, IL

Built 2015 ADT: 68,700

ELMHURST SB

Over: I- 90 ADAMS TOLLWAY

.3M S of Oakton, Cook, IL

Built 2015 ADT: 160,700

ELMHURST NB

Over: I- 90 ADAMS TOLLWAY

0.3 M S of Oakton, Cook, IL

Built 2015 ADT: 160,700

IL 72 (LEE ST)

Over: I- 90 ADAMS TOLLWAY

0.5 M W of US 45, Cook, IL

Built 2014 ADT: 172,200

IL 171 SB FIRST AV

Over: I- 55 STEVENSON

1.4M SW of Il43, Cook, IL

Built 2015 ADT: 127,600

IL 171 NB FIRST AV

Over: I- 55 STEVENSON

1.4 M SW of IL 43, Cook, IL

Built 2016 ADT: 1,400

IL 171 SB RMP I-55

Over: I- 55 STEVENSON

1.4M SW of IL43, Cook, IL

Built 2015 ADT: 10,100

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