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:

I-90/I-90W to I-29

Over: Willow Creek

0.2 M E I294 P9, Cook, IL

Built 1958 Load: 29.5 t ADT: 103,500

LINDEN AVE

Over: N SHORE CHANNEL

WILMETTE, Cook, IL

Built 1909 Load: 29.5 t ADT: 2,300

NB LSD Ramp to IL

Over: Land & Ogden Slip

400 N. & 484 E., Cook, IL

Built 1986 Load: 29.8 t ADT: 6,100

I-294 NB

Over: SALT CR

1 M N US 34 P20, Cook, IL

Built 1958 Load: 29.8 t ADT: 84,800

I-294 SB

Over: SALT CR

1 M N US 34 P20, Cook, IL

Built 1958 Load: 29.8 t ADT: 84,800

IL 43 (HARLEM AVE

Over: STONEY CREEK

0.3 M S 103RD ST, Cook, IL

Built 1960 Load: 30.1 t ADT: 40,400

IL 83,171 (KINGER

Over: CAL SAG CHANNEL

.1MI S OF 171,N JCT, Cook, IL

Built 1934 Load: 30.1 t ADT: 20,500

IL 390 EB EOH

Over: RR - METRA, WETLANDS

.8M E OF US 20, Cook, IL

Built 1993 Load: 30.1 t ADT: 25,700

CENTRAL AVE

Over: TINLEY CREEK

0.6 N 135TH ST P26, Cook, IL

Built 1941 Load: 30.1 t ADT: 4,600

IL 58 (GOLF RD)

Over: TRIB TO POPLAR CR

1.12 M W OF IL 59;, Cook, IL

Built 1920 Load: 30.1 t ADT: 11,800

MAPLE AVE

Over: N SHORE CHANNEL

WILMETTE, Cook, IL

Built 1909 Load: 30.1 t ADT: 400

US 45 SB (LA GRANG

Over: CAL SAG CHANNEL

0.2 M N IL 83, Cook, IL

Built 1967 Load: 30.5 t ADT: 33,800

IL 83 (ELMHURST R

Over: MCDONALD CREEK

.5 M S PALATINE RD, Cook, IL

Built 1960 Load: 30.5 t ADT: 14,900

IL 19 (IRVING PAR

Over: BENSENVILLE DR DTCH

1 M W US 45, Cook, IL

Built 1970 Load: 30.5 t ADT: 36,300

I-294

Over: STREAM

I80 & I294 "Y", Cook, IL

Built 1958 Load: 30.5 t ADT: 104,500

16TH STREET

Over: THORN CREEK

0.5 M E ASHLAND AVE, Cook, IL

Built 1926 Load: 30.5 t ADT: 1,400

OLD WILLOW ROAD

Over: MID FK N BR CHI RIV

0.3 M W US41 P14, Cook, IL

Built 1995 Load: 30.5 t ADT: 600

RIDGELAND AVE

Over: STONY CR

.14M S OF SOWEST HWY, Cook, IL

Built 1948 Load: 30.8 t ADT: 16,700

104TH AVE

Over: CAL SAG CHANNEL

0.5 M S 107TH P19, Cook, IL

Built 1964 Load: 30.8 t ADT: 2,400

COTTAGE GROVE AVE

Over: NORTH CREEK

0.5 M S 183RD P2, Cook, IL

Built 1940 Load: 30.8 t ADT: 4,500

BRYN MAWR AVE

Over: N SHORE CHANNEL

5600 N & 3100 W, Cook, IL

Built 1968 Load: 30.8 t ADT: 7,750

ROOSEVELT ROAD

Over: UNION STATION TRACKS

1200S 300W TO 400W, Cook, IL

Built 1925 Load: 30.8 t ADT: 26,800

87TH ST.

Over: B&O,IHB RR

0.6M.W.OF IL-43, Cook, IL

Built 1971 Load: 31.1 t ADT: 19,700

POLK STREET

Over: UNION STATION TRACKS

800S 300W TO 500W, Cook, IL

Built 1996 Load: 31.1 t ADT: 2,200

IL 43 (HARLEM AVE

Over: CAL SAG CHANNEL

0.2 M N IL 83, Cook, IL

Built 1964 Load: 31.4 t ADT: 34,900

WOLF RD

Over: MCDONALD CREEK

3.7 M S IL 68, Cook, IL

Built 1932 Load: 31.4 t ADT: 9,600

FOREST WAY DR

Over: DITCH

0.5 M S OF DUNDEE RD, Cook, IL

Built 1954 Load: 31.4 t ADT: 2,400

MT PROSPECT RD

Over: WELLER'S DITCH

0.2 M N ILL 58 P11, Cook, IL

Built 1947 Load: 31.4 t ADT: 15,500

CRAWFORD AVE

Over: CAL SAG CHANNEL

1 M N I294 P26, Cook, IL

Built 1931 Load: 31.8 t ADT: 21,000

TOUHY AVE

Over: DES PLAINES RIVER

0.3 M E I-294, Cook, IL

Built 1955 Load: 31.8 t ADT: 27,600

IL 83 (SIBLEY BLV

Over: RR - UP

1.5 M W I-94, Cook, IL

Built 1936 Load: 31.8 t ADT: 34,200

COLUMBUS DR

Over: PARKING FACILITIES

300 E & 100S TO 150N, Cook, IL

Built 1980 Load: 31.8 t ADT: 18,600

I-294 NB

Over: CAL SAG CANAL

1 M SE ILL 50 P26, Cook, IL

Built 1958 Load: 31.8 t ADT: 66,750

ROOSEVELT RD

Over: DES PLAINES RIVER

0.3M E OF 1ST AVE, Cook, IL

Built 1928 Load: 32.1 t ADT: 25,200

IL 62 ALGONQUIN R

Over: SPRING CREEK

1.4 M W IL 59, Cook, IL

Built 1929 Load: 32.1 t ADT: 25,100

LAKE COOK RD

Over: RAVINE

1.5 M E US 41, Cook, IL

Built 1926 Load: 32.1 t ADT: 3,200

31ST ST

Over: DES PLAINES RIVER

2.4 M E US 45, Cook, IL

Built 1928 Load: 32.1 t ADT: 11,300

PLUM GROVE RD

Over: SALT CREEK

0.4 M N ILL 62 P18, Cook, IL

Built 1957 Load: 32.1 t ADT: 2,300

LAKE-COOK ROAD

Over: DES PLAINES RIVER

0.2 M E OF US-45, Cook, IL

Built 1994 Load: 32.1 t ADT: 34,300

IL 68 (DUNDEE RD)

Over: WHEELING DRN DTCH

0.6 M W US 45, Cook, IL

Built 1900 Load: 32.4 t ADT: 24,900

I- 90,94 RYAN ELEV

Over: S BR CHI RIVER

0.2 M N I-55, Cook, IL

Built 1962 Load: 32.4 t ADT: 229,200

I-290 WB (NB)

Over: RR - UP (SOUTH)

0.6 M S IL 64, Cook, IL

Built 1958 Load: 32.4 t ADT: 59,750

IL 72

Over: TRIB OF W BR SALT CR

0.4M E OF PLUM GROVE, Cook, IL

Built 1930 Load: 32.4 t ADT: 36,400

IL 64 (NORTH AVE)

Over: DITCH

BETWEEN 20TH & 21ST, Cook, IL

Built 1927 Load: 32.4 t ADT: 50,800

NEW AVE

Over: DITCH

0.3M W of Stephen St, Cook, IL

Built 1950 Load: 32.4 t ADT: 6,050

IL 83

Over: DITCH

0.4M W of Harlem, Cook, IL

Built 1931 Load: 32.4 t ADT: 15,900

TORRENCE AVE

Over: DITCH

0.4 M N SAUK TR, Cook, IL

Built 1953 Load: 32.4 t ADT: 6,900

WOLF RD

Over: MARLEY CRK S-XING

.1M S of US6 SW Hwy, Cook, IL

Built 1927 Load: 32.4 t ADT: 6,900

I- 55 STEVENSON

Over: RR - CN SPUR

0.5 M W IL 43, Cook, IL

Built 1964 Load: 32.4 t ADT: 70,250

EAST AVE

Over: DITCH

300' N OF 58TH, Cook, IL

Built 1985 Load: 32.4 t ADT: 23,200

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