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:

PULASKI RD

Over: N BR CHICAGO RIVER

1 M N IL 21, Cook, IL

Built 1994 Load: 53.1 t ADT: 16,200

CERMAK RD (22ND ST

Over: DES PLAINES RIVER

1.3 M W IL 43, Cook, IL

Built 1930 Load: 53.5 t ADT: 25,600

47TH ST

Over: FLAG CREEK

2.1 M W US 45, Cook, IL

Built 1958 Load: 53.5 t ADT: 9,000

I-90WB TO NB STONY

Over: CONRAIL & AMTRAK

0.13 M S 79TH P7C, Cook, IL

Built 1958 Load: 53.5 t ADT: 4,000

IL 171 NB FIRST AV

Over: RR - CN

0.3 M SE I-55, Cook, IL

Built 1963 Load: 53.8 t ADT: 39,600

SIMONDS DR

Over: PARKING LOT ENTRANCE

4700 N. & 600 W, Cook, IL

Built 1935 Load: 53.8 t ADT: 1,700

SHERIDAN RD

Over: RAVINE NO 1

0.5 M S LAKE CO, Cook, IL

Built 1923 Load: 54.4 t ADT: 2,750

CENTRAL AVE.

Over: ICG RR & GROUND

0.08M.S.OF I-55, Cook, IL

Built 1964 Load: 54.4 t ADT: 34,100

I-290 IKE-IL 110 C

Over: DES PLAINES RIVER

1.1 M W ILL 43, Cook, IL

Built 1958 Load: 54.8 t ADT: 173,800

PALATINE WB FRNT R

Over: DES PLAINES RIVER

E US 45 (MILWAUKEE), Cook, IL

Built 1925 Load: 54.8 t ADT: 4,600

PALATINE RD

Over: DES PLAINES RIVER

0.1 M E US 45, Cook, IL

Built 1965 Load: 54.8 t ADT: 33,800

127TH ST BURR OAK

Over: STONY CREEK

2 M E IL 50, Cook, IL

Built 1968 Load: 54.8 t ADT: 20,900

I- 94 EB

Over: THORN CREEK

I-94 RAMP @ I-80, Cook, IL

Built 2006 Load: 54.8 t ADT: 36,750

WILSON DR

Over: SHARED USE PATH

4640 N & 550 W, Cook, IL

Built 1936 Load: 54.8 t ADT: 850

I-294 NB

Over: C&NW RR

0.4 M S US 20 P20, Cook, IL

Built 1958 Load: 54.8 t ADT: 75,250

I- 94 SB BISHOP FO

Over: RR - NS & WOODLAWN A

1.7 M SE I-57, Cook, IL

Built 1960 Load: 55.1 t ADT: 66,250

WASHINGTON AVE

Over: SALT CREEK

1.5 M E US 45, Cook, IL

Built 1936 Load: 55.1 t ADT: 4,450

I- 55 WB STEVENSON

Over: RR - CSXT

2.2 M SW ILL 43, Cook, IL

Built 1963 Load: 56.1 t ADT: 70,000

I- 55 EB STEVENSON

Over: RR - CSXT

2.2 M SW ILL 43, Cook, IL

Built 1963 Load: 56.1 t ADT: 70,000

I- 55 EB ELEVATED

Over: S BR CHICAGO RIVER

1.1 M SW I-94, Cook, IL

Built 1963 Load: 56.1 t ADT: 75,400

IL 72

Over: POPLAR CREEK

0.2 M E BARRINGTON, Cook, IL

Built 1970 Load: 56.7 t ADT: 23,400

I- 90,94 DAN RYAN

Over: SANITARY SEWER

JUST NORTH OF 39TH, Cook, IL

Built 1961 Load: 57.7 t ADT: 315,000

BURNHAM AVE

Over: CALUMET RIVER

0.01 M N OF 170TH ST, Cook, IL

Built 1941 Load: 58.0 t ADT: 10,600

I-294

Over: 159TH CREEK

02 MI N. US 6, Cook, IL

Built 1958 Load: 58.0 t ADT: 102,100

I- 94 NB KINGERY

Over: THORN CREEK

ILL 394 I80/294 INT., Cook, IL

Built 2005 Load: 58.0 t ADT: 36,750

I-190 EB JFK

Over: DES PLAINES RIVER

2.5 M W IL 43, Cook, IL

Built 1959 Load: 58.6 t ADT: 28,600

WILLOW WOOD DR

Over: E BR SALT CR

0.18 M E HICKS RDP18, Cook, IL

Built 1968 Load: 59.0 t ADT: 350

IL 58 EVANSTON-EL

Over: WELLER'S CREEK

0.2 M E MT PROSPECT, Cook, IL

Built 1928 Load: 59.6 t ADT: 29,700

I- 57 SB

Over: ABANDONED RR

0.5 M S US 30, Cook, IL

Built 1966 Load: 60.3 t ADT: 32,050

I- 57 NB

Over: ABANDONED RR

0.5 M S US 30, Cook, IL

Built 1966 Load: 60.3 t ADT: 32,050

BUSSE HIGHWAY

Over: PRAIRE CREEK

0.4 M SE US 14, Cook, IL

Built 1930 Load: 60.6 t ADT: 2,800

I-90 SKYWAY

Over: GROUND NW COMM AVE

0.03 M NW COMM AV, Cook, IL

Built 1958 Load: 60.6 t ADT: 28,700

TORRENCE AV

Over: GRAND CALUMET

1.5 M N OF IL 83, Cook, IL

Built 2017 Load: 61.2 t ADT: 17,800

IL 21 (MILWAUKEE)

Over: RR - UP

0.7 SE I-294, Cook, IL

Built 1970 Load: 64.5 t ADT: 28,400

COTTAGE GROVE AV

Over: DEER CRK

0.2 M N OF SAUK TRL, Cook, IL

Built 2001 Load: 64.8 t ADT: 3,750

PULAKSI RD

Over: RR - CSXT

0.1 M S OF 123RD ST, Cook, IL

Built 1935 Load: 65.4 t ADT: 25,000

IL 83, 171

Over: CAL SAG EXTENSION

0.2 M S IL 171, Cook, IL

Built 1935 Load: 68.0 t ADT: 20,500

I-294

Over: STREAM

1.6 M N I-55, Cook, IL

Built 1958 Load: 68.0 t ADT: 173,800

LASALLE STREET

Over: TROLLEY CAR TUNNEL

N. OF CHICAGO RIVER, Cook, IL

Built 1911 Load: 69.3 t ADT: 18,600

I-90WB TO NB STONY

Over: GROUND

0.12 M N 79TH P7C, Cook, IL

Built 1958 Load: 70.0 t ADT: 4,000

I- 80 WB TO IL 43

Over: HICKORY CREEK TRIB

0.2 M N I-80, Cook, IL

Built 1967 Load: 71.9 t ADT: 4,500

IL 43 (HARLEM AVE

Over: HICKORY CREEK TRIB

0.1 M N I-80, Cook, IL

Built 1967 Load: 71.9 t ADT: 34,200

I-294

Over: STREAM

0.1 M N I-80, Cook, IL

Built 1958 Load: 75.2 t ADT: 104,500

DEER TRAIL COURT

Over: TRIB C MARLEY CREEK

0.2 MI E 108TH AVE, Cook, IL

Built 2014 Load: 75.8 t ADT: 325

PARK AVE

Over: CAL UNION DITCH

0.5 M S US 6, Cook, IL

Built 1958 Load: 77.4 t ADT: 8,500

I-90

Over: Higgins Cr. Trib A

.2 Mi W. Elmhurst Rd, Cook, IL

Built 2015 Load: 84.6 t ADT: 147,300

US 12,20,45 MANNHE

Over: SALT CREEK

0.1 M S CERMAK RD, Cook, IL

Built 1958 Load: 85.9 t ADT: 23,500

167TH STREET

Over: 76TH AVE DITCH

.05M E OF 76TH AVE, Cook, IL

Built 1975 Load: 88.8 t ADT: 6,550

I-290

Over: SALT CREEK

1.2 M S IL 72, Cook, IL

Built 1970 Load: 89.1 t ADT: 165,000

I-294

Over: SILVER CREEK

1.7 MI N. OF US 20, Cook, IL

Built 1959 Load: 89.1 t ADT: 173,100

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