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 64 (NORTH AVE)

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

Built 1900 ADT: 28,700

C&NW RR

Over: ILL 64 (NORTH AVE)

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

Built 1900 ADT: 28,700

IHB RR

Over: ILL 64 (NORTH AVE)

0.8 M E US 45 P9,20, Cook, IL

Built 1900 ADT: 40,900

RR - CN WEST BRIDG

Over: IL 64 (NORTH AVE)

1.6 M W IL 43, Cook, IL

Built 1963 ADT: 38,500

I-190 EB JFK

Over: I-294 TRI-STATE TOLL

3.2 M W IL 43, Cook, IL

Built 1959 ADT: 16,500

I-190 WB JFK

Over: I-294 TRI STATE TOLL

3.2 M W IL 43, Cook, IL

Built 1959 ADT: 16,500

I-190 EB JFK

Over: I-294 NB to I-90

3.1 M W IL 43, Cook, IL

Built 1959 ADT: 38,200

I-190 EB JFK

Over: DES PLAINES RIV RD

2.8 M W IL 43, Cook, IL

Built 1959 ADT: 21,000

I-190 WB JFK

Over: DES PLAINES RIV RD

2.8 M W IL 43, Cook, IL

Built 1959 ADT: 28,600

I-190 WB JFK

Over: I- 90 TOLL & D P RIV

2.5 M W IL 43, Cook, IL

Built 1959 ADT: 91,500

RR - UP RR & PEDWA

Over: I- 90 JFK & CTA

1.1 M W IL 50, Cook, IL

Built 1958 ADT: 147,000

RR - METRA

Over: I- 90 JFK & CTA

0.1 M NW IL 50, Cook, IL

Built 1958 ADT: 138,300

RR - UP & METRA

Over: I- 90 JFK & CTA

0.1 M NW IL 50, Cook, IL

Built 1958 ADT: 138,300

IL 171 & 79 ST EB

Over: US 12,20,45 MANNHEIM

0.1 M SW US 45, Cook, IL

Built 1959 ADT: 31,700

79TH ST

Over: RR - CSXT

0.6 M W IL 43, Cook, IL

Built 1956 ADT: 350

IL 68 (DUNDEE RD)

Over: I-294 TRI STATE TOLL

1 M E US 45, Cook, IL

Built 1958 ADT: 130,100

WILLOW RD

Over: I-294 TRI STATE TOLL

2.4 M S IL 68, Cook, IL

Built 1958 ADT: 142,700

C&NW RR

Over: WILLOW RD

2.2 M E I294 P14, Cook, IL

Built 1948 ADT: 31,700

WILLOW RD

Over: RR - METRA

1 M W IL 43, Cook, IL

Built 1942 ADT: 2,200

WILLOW RD

Over: I- 94, US41 EDENS

4.4 M N IL 58, Cook, IL

Built 1949 ADT: 113,400

WILLOW SPRINGS RD

Over: I- 55 STEVENSON

1 M W US 45, Cook, IL

Built 1963 ADT: 130,900

WILLOW SPRINGS RD

Over: I-294 TRI STATE TOLL

0.2 M S I-55, Cook, IL

Built 1958 ADT: 139,900

LAKE AVE

Over: I- 94 EDENS

2.7 M N IL 58, Cook, IL

Built 1950 ADT: 114,000

CRAWFORD AVE

Over: I- 80

1.2 M E IL 50, Cook, IL

Built 1967 ADT: 58,900

DEVON AVE

Over: I-290

1.3 M N of IL 19, Cook, IL

Built 2014 ADT: 178,400

C&NW RR

Over: CENTRAL RD

0.1 M E I294 P11,14, Cook, IL

Built 1900 ADT: 10,600

C&NW RR

Over: GRAND AVE

0.4 M E I294 P9, Cook, IL

Built 1900 ADT: 23,200

AT&SF RR

Over: STEPHEN ST

N OF LEMONT P8, Cook, IL

Built 1900 ADT: 1,900

SAUK TRAIL

Over: I- 57

1.6 M S US 30, Cook, IL

Built 1966 ADT: 100

183RD ST

Over: I- 80

0.5 M SW I-57, Cook, IL

Built 1963 ADT: 90,800

183RD ST

Over: I- 57

0.5 M S I-80, Cook, IL

Built 1965 ADT: 75,700

CMSTP&P RR

Over: LAWRENCE AVE

0.2 M E I294 P9, Cook, IL

Built 1900 ADT: 18,400

W.C.RR

Over: LAWRENCE AVE

0.21 M E I294 P9, Cook, IL

Built 1900 ADT: 18,400

COUNTY LINE RD

Over: I- 55 STEVENSON

2.6 M W US 45, Cook, IL

Built 1959 ADT: 152,500

US 20 WB (LAKE ST)

Over: IL 64 (NORTH AVE)

2 M N US 45, Cook, IL

Built 1931 ADT: 28,700

C&NW RR

Over: US 20 (LAKE ST)

1.81 M W US 45 P20, Cook, IL

Built 1900 ADT: 23,000

C&NW RR

Over: US 20 (LAKE ST)

1.77 M W US 45 P20, Cook, IL

Built 1927 ADT: 23,000

C&NW RR

Over: US 20 (LAKE ST)

1.76 M W US 45 P20, Cook, IL

Built 1900 ADT: 23,000

C&NW RR

Over: US 20 (LAKE ST)

1.75 M W US 45 P20, Cook, IL

Built 1927 ADT: 23,000

IHB RR (WEST)

Over: US 20 (LAKE ST)

0.75 M E US 45 P20, Cook, IL

Built 1900 ADT: 20,100

IHB RR (EAST)

Over: US 20 (LAKE ST)

0.78 M E US 45 P20, Cook, IL

Built 1900 ADT: 20,100

WISC.CENTRAL RR

Over: LAKE ST

0.8 M W ILL 43 P20, Cook, IL

Built 1900 ADT: 9,700

IHB RR

Over: WASHINGTON BLVD

0.3 M E IL 50 P4C, Cook, IL

Built 1900 ADT: 8,850

C&NW RR

Over: WARREN BLVD

2.8 M E IL 50 P4C, Cook, IL

Built 1900 ADT: 3,400

WASHINGTON BLVD

Over: I- 90,94 JFK

0.5 M N I-290, Cook, IL

Built 1956 ADT: 225,700

RANDOLPH ST

Over: I- 90,94 JFK

0.6 M N I-290, Cook, IL

Built 1956 ADT: 217,500

C&NW RR

Over: WASHINGTON BLVD

2.8 M E ILL 50 P4C, Cook, IL

Built 1900 ADT: 4,100

ELSTON AVE

Over: I- 94 EDENS

0.6 M N I-90,94, Cook, IL

Built 1957 ADT: 133,600

C&NW RR

Over: ELSTON AVE

0.2 M SE I94 P2C, Cook, IL

Built 1900 ADT: 13,800

C&NW RR

Over: ELSTON AVE

0.8 M NW ILL 64 P3C, Cook, IL

Built 1900 ADT: 8,250

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →

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