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:

ALGONQUIN RD

Over: DESPLAINES RIV

DESPLAINS RIV P11, Cook, IL

Built 1927 Load: 36.6 t ADT: 5,650

FOSTER AVE

Over: N BR CHI RIV WEST

0.1 M W PULASKI RD, Cook, IL

Built 1933 Load: 36.9 t ADT: 23,800

CENTRAL RD

Over: DES PLAINES RIVER

.5 M W I-294, Cook, IL

Built 1929 Load: 36.9 t ADT: 12,400

MCHENRY RD

Over: WHEELING DRN DTCH

0.2 M NW IL 68, Cook, IL

Built 1931 Load: 36.9 t ADT: 10,000

MADISON ST

Over: ADDISON CREEK

0.7 M E US 45, Cook, IL

Built 1920 Load: 36.9 t ADT: 4,100

FAU-1635 (STEGER R

Over: PLUM CREEK

0.35 E BURNHAM P2, Cook, IL

Built 1954 Load: 36.9 t ADT: 8,300

I-294,80 WB

Over: THORN CR

0.6 M W I94 P24, Cook, IL

Built 1958 Load: 36.9 t ADT: 73,500

US 12,45 MANNHEIM

Over: WILLOW CREEK

0.1 M N IL 72, Cook, IL

Built 2003 Load: 37.3 t ADT: 21,400

Shoe Factory Road

Over: Poplar Creek

0.2 MILE W. OF IL 72, Cook, IL

Built 1937 Load: 37.3 t ADT: 3,400

I- 55 EB STEVENSON

Over: RR - BNSF

0.3 M E US 45, Cook, IL

Built 1964 Load: 37.6 t ADT: 61,500

I-90 SKYWAY EB

Over: SERVICE BUILDING

E YATES & ANTHNY P8C, Cook, IL

Built 1958 Load: 37.6 t ADT: 14,350

I90 WB (NW TOLL)

Over: C.W.RR

E OF US 12&45 P11, Cook, IL

Built 1958 Load: 37.6 t ADT: 86,100

I- 57

Over: BUTTERFIELD CREEK

0.04 M N of V Common, Cook, IL

Built 1967 Load: 37.9 t ADT: 79,300

IL 171 NB ELEVATED

Over: STA 53&15 TO 63&18

0.5 M SE JOLIET RD, Cook, IL

Built 1964 Load: 37.9 t ADT: 40,100

PULASKI RD SB

Over: RR - BRC

0.2 M S 71ST ST, Cook, IL

Built 1988 Load: 37.9 t ADT: 31,000

RIDGELAND AVE

Over: BUTTERFIELD CREEK

0.25 M N US 30 P21, Cook, IL

Built 1957 Load: 37.9 t ADT: 6,750

S LAKE SHORE DRIVE

Over: JACKSON PK LAGOON IN

5900 S & 1900 E, Cook, IL

Built 1891 Load: 37.9 t ADT: 36,700

IL 58 (DEMPSTER S

Over: N BR CHICAGO RIVER

0.6 M E IL 43, Cook, IL

Built 1966 Load: 38.2 t ADT: 34,900

IL 43 SB HARLEM A

Over: RR-MWRD SLUDGE&AC RD

0.2 M N I-55, Cook, IL

Built 1969 Load: 38.2 t ADT: 35,500

KENSINGTON RD

Over: MC DONALD CREEK

0.05 M W RIVER RD, Cook, IL

Built 1938 Load: 38.2 t ADT: 4,950

HALSTED ST

Over: THORN CREEK

0.6 M N OF US 30, Cook, IL

Built 1986 Load: 38.2 t ADT: 6,800

MONTROSE AVE

Over: N BR CHICAGO RIVER

4400 N & 2600 W, Cook, IL

Built 1917 Load: 38.2 t ADT: 11,600

STONY ISL SB TO E

Over: GROUND

0.07 M N 79TH P7C, Cook, IL

Built 1958 Load: 38.2 t ADT: 5,000

STONY ISL SB TO E

Over: GROUND

0.26 M S 79TH P7C, Cook, IL

Built 1958 Load: 38.2 t ADT: 5,000

GOLF RD

Over: W FK N BR CHI RIVER

0.8 M E IL 43, Cook, IL

Built 1928 Load: 38.6 t ADT: 33,400

KEDZIE AVE

Over: RR - BRC

AT 75TH ST, Cook, IL

Built 1936 Load: 38.6 t ADT: 18,800

IL 83 (ELMHURST R

Over: WELLER'S CREEK

0.8 M S US 14, Cook, IL

Built 2000 Load: 38.6 t ADT: 13,200

LAKE COOK RD

Over: BUFFALO CR

0.5 W BUFFALO GR P25, Cook, IL

Built 1978 Load: 38.6 t ADT: 29,400

I- 94 BISHOP FORD

Over: RR - IHB

6.9 M SE I-57, Cook, IL

Built 1949 Load: 38.9 t ADT: 166,900

IL 72 (HIGGINS RD

Over: SALT CREEK

1 M E I-290,IL53, Cook, IL

Built 1900 Load: 38.9 t ADT: 26,600

CERMAK RD

Over: S BR CHICAGO RIV

501 W CERMAK, Cook, IL

Built 1906 Load: 38.9 t ADT: 9,100

WESTERN AVE

Over: N BR CHICAGO RIVER

3000 N & 2400 W, Cook, IL

Built 1973 Load: 38.9 t ADT: 28,500

I- 55 WB STEVENSON

Over: RR - BNSF

0.3 M E US 45, Cook, IL

Built 1964 Load: 39.2 t ADT: 61,500

I- 94 EDENS

Over: N BR CHICAGO RIVER

0.6 M N FOSTER, Cook, IL

Built 1949 Load: 39.2 t ADT: 145,400

I- 94 SB BISHOP FO

Over: LITTLE CAL RIVER

1.3 M N IL 83, Cook, IL

Built 1949 Load: 39.2 t ADT: 83,450

SHERIDAN RD

Over: RAVINE NO 3

1.5 M S LAKE CO, Cook, IL

Built 1923 Load: 39.2 t ADT: 2,950

PALATINE EB FRNT R

Over: DES PLAINES RIVER

E US 45 (MILWAUKEE), Cook, IL

Built 1965 Load: 39.5 t ADT: 4,250

IL 394 NB

Over: RR - EJ&E AND NS

0.5 M S US 30, Cook, IL

Built 1955 Load: 39.5 t ADT: 30,700

GRAND AVE

Over: DES PLAINES RIVER

2 M W IL 43, Cook, IL

Built 1922 Load: 39.5 t ADT: 16,500

IL 19 (IRVING PAR

Over: DES PLAINES RIVER

E. DES PLAINES RIV R, Cook, IL

Built 1996 Load: 39.5 t ADT: 21,000

US 12,20,45 MANNHE

Over: RR - UP PROVISO YD

0.3 M S US 20, Cook, IL

Built 1954 Load: 39.9 t ADT: 43,600

JOLIET RD

Over: RR - CSXT & IHB

0.2 M NE 55TH ST, Cook, IL

Built 1932 Load: 39.9 t ADT: 9,600

139TH ST

Over: RR - CSX & IHB

0.5 M W WESTERN AVE, Cook, IL

Built 1960 Load: 39.9 t ADT: 5,050

IL 171 SB ELEVATED

Over: STA 53&15 TO 63&18

0.5 M SE JOLIET RD, Cook, IL

Built 1964 Load: 39.9 t ADT: 40,100

IL 394 SB

Over: RR - CN

.2 MI S. I-80, Cook, IL

Built 2006 Load: 39.9 t ADT: 89,200

ISABELLA ST

Over: N SHORE CHANNEL

1 M E GREEN BAY P6, Cook, IL

Built 1908 Load: 39.9 t ADT: 1,300

I-294 NB

Over: DES PLAINES RIV

0.6 M S ILL 62 P11, Cook, IL

Built 1958 Load: 39.9 t ADT: 82,250

I- 57 SB

Over: CAL SAG CHANNEL

0.5 M S 127TH, Cook, IL

Built 1966 Load: 40.2 t ADT: 54,400

I- 57 NB

Over: CAL SAG CHANNEL

0.5 M S 127TH, Cook, IL

Built 1966 Load: 40.2 t ADT: 54,400

IL 83 (SIBLEY BLV

Over: LITTLE CAL RIVER

1 M E IL 1, Cook, IL

Built 1922 Load: 40.2 t ADT: 27,200

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