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:

PC RR

Over: GARFIELD BLVD

E OF WESTERN P7C, Cook, IL

Built 1900 ADT: 22,400

PC RR

Over: GARFIELD BLVD

E OF WESTERN P7C, Cook, IL

Built 1900 ADT: 22,400

CTA

Over: 63RD ST

E OF WESTERN P7C, Cook, IL

Built 1900 ADT: 11,300

LAKE SHORE DR

Over: Lower LSD & Land

402 N.AND 484 E., Cook, IL

Built 1986 ADT: 13,650

LAKE SHORE DR

Over: OGDEN SLIP

450 N & 484 E, Cook, IL

Built 1986 ADT: 13,650

LAKE SHORE DR

Over: GRAND & ILLINOIS STS

530N.& 484E., Cook, IL

Built 1986 ADT: 12,400

DEARBORN ST

Over: Carrol Ave

36W&330N TO 400N, Cook, IL

Built 1963 ADT: 5,000

18TH STREET

Over: RR. LUMBER ST & LOT

1800S 300W TO 500W, Cook, IL

Built 1967 ADT: 1,000

MICHIGAN AVE

Over: VARIOUS CITY STS

100E 365N TO 530N, Cook, IL

Built 1920 ADT: 17,100

MICHIGAN AVE

Over: VARIOUS CITY STREETS

100E.& 340N.TO 200N., Cook, IL

Built 1921 ADT: 19,500

FAU-2907 State St

Over: VARIOUS CITY STRTS

0E/W & 400N.TO 300N., Cook, IL

Built 1949 ADT: 5,000

WABASH AVE

Over: VARIOUS CITY STRTS

44E 400N TO 500N, Cook, IL

Built 1930 ADT: 8,150

WESTERN BLVD

Over: S WESTERN AVE

3300S 2400W, Cook, IL

Built 1940 ADT: 21,200

BEAUBIEN

Over: LOWER LEVEL BEAUBIEN

120E & 150N to 186N, Cook, IL

Built 1956 ADT: 375

LAKE STREET-EAST

Over: Metra,Parking&Beaubi

200N 125E TO 154E, Cook, IL

Built 1956 ADT: 375

STETSON AVENUE

Over: LOWER LEVEL STETSON

154E 150N TO 200N, Cook, IL

Built 1956 ADT: 3,100

WACKER DRIVE

Over: LOWER LVL WACKER DR

MICHIGAN TO RANDOLPH, Cook, IL

Built 1926 ADT: 19,500

E SOUTH WATER ST

Over: GARLAND COURT

350 N & 50 E, Cook, IL

Built 1926 ADT: 775

RANDOLPH STREET

Over: LOWER LEV. RANDOLPH

150N 399E TO 440E, Cook, IL

Built 1963 ADT: 12,200

WACKER DR E

Over: LOWER WACKER DR

340N,100E+0154E, Cook, IL

Built 1973 ADT: 19,500

STETSON AVE

Over: LOWER STETSON

180 E & 300N TO 340N, Cook, IL

Built 1974 ADT: 3,100

WACKER DR E

Over: LOWER WACKER DRIVE

340N 154E TO 358E, Cook, IL

Built 1975 ADT: 25,100

RANDOLPH STREET

Over: VAR CITY STS & RR

150N 100E TO 400E, Cook, IL

Built 1937 ADT: 12,200

43RD STREET PED BR

Over: LAKE SHORE & METRA

2.3 Mi. S. of I-55, Cook, IL

Built 1939 ADT: 115,300

51ST STREET PED BR

Over: LAKE SHORE DRIVE

.5 MI. S. OF 47TH ST, Cook, IL

Built 1965 ADT: 102,600

NORTH AVE PED BRDG

Over: OVER LAKE SHORE DR

0.3 MI N NORTH AVE, Cook, IL

Built 1940 ADT: 131,000

WABASH AVE

Over: KINZIE STREET

50E, 300N TO 400N, Cook, IL

Built 2005 ADT: 7,350

MONROE ST

Over: METRA ELECTRIC RR

100S & 200E, Cook, IL

Built 1938 ADT: 1,000

Jackson Dr

Over: METRA ELECTRIC RR

300 S & 200 E, Cook, IL

Built 1926 ADT: 1,000

MCCORMICK WALK @23

Over: SB LAKE SHORE DRIVE

0.3 MI N I55, Cook, IL

Built 1966 ADT: 68,700

OAKWOOD BLVD

Over: LAKE SHORE DRIVE

3900S 926E, Cook, IL

Built 1950 ADT: 113,000

Lake Shore Dr SB

Over: 47TH ST

4700 S & 1600E, Cook, IL

Built 1937 ADT: 12,200

ILLINOIS ST

Over: N. ST. CLAIR STREET

500N-300E TO 200E, Cook, IL

Built 2005 ADT: 8,150

LAKE SHORE DR

Over: W BRYN MAWR AVE

5600N AND 936W, Cook, IL

Built 1954 ADT: 58,800

LAKE SHORE DR

Over: FOSTER AVE

5200 N. AND 800 W., Cook, IL

Built 1951 ADT: 15,200

LAKE SHORE DRIVE

Over: LAWRENCE AVE

4800 N & 700 W, Cook, IL

Built 1933 ADT: 15,000

LAKE SHORE DRIVE

Over: WILSON AVENUE

4600 N & 732 W, Cook, IL

Built 1933 ADT: 9,500

LAKE SHORE DR

Over: MONTROSE AVE

4400 N.& 646 W., Cook, IL

Built 1940 ADT: 12,000

LAKE SHORE DR

Over: IRVING PARK RD

4000 N. & 600 W, Cook, IL

Built 1967 ADT: 17,500

LAKE SHORE DR

Over: BELMONT AV

3200 N.& 400 W., Cook, IL

Built 1941 ADT: 17,700

LAKE SHORE DRIVE

Over: FULLERTON AVENUE

2400N 100W, Cook, IL

Built 1940 ADT: 21,300

LAKE SHORE DR

Over: LASALLE DR

1700 N & LSD, Cook, IL

Built 1940 ADT: 21,500

43RD ST PED BRIDGE

Over: LSD, METRA & ICRR

1140 E & 4300 S, Cook, IL

Built 2023 ADT: 115,300

SOUTH WATER ST

Over: E SO WATER ST LOW

BEAUBIEN TO STETSON, Cook, IL

Built 2022 ADT: 400

BICYCLE & PEDESTRI

Over: LSD, Metra Electric

3500 S & 800 E, Cook, IL

Built 2016 ADT: 122,400

41ST STREET PED BR

Over: LSD, Metra Electric

1100 E & 4100 S, Cook, IL

Built 2018 ADT: 115,300

PEDESTRIAN BRIDGE

Over: N. WATER STREET

400N 50E, Cook, IL

Built 2005 ADT: 2,100

ORLEANS ST

Over: KINZIE,RR & MUNI STS

340W 300N TO 400N, Cook, IL

Built 1921 ADT: 6,100

HALSTED STREET

Over: KINZIE ST, RR TRACKS

KINZIE TO WAYMAN ST., Cook, IL

Built 1971 ADT: 3,100

MCCORMICK WALK @23

Over: NB LAKE SHORE DRIVE

0.3 MI N I55, Cook, IL

Built 1966 ADT: 68,700

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