McHenry County, IL

229 public highway bridges

McHenry County Bridge Snapshot

McHenry County, Illinois contains 229 public highway bridges in the FHWA National Bridge Inventory. Roughly 37.1% are rated “Good,” 36.7% “Fair,” 20.1% “Poor,” and 20.1% 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.

229

Total Bridges

37.1%

Good

20.1%

Poor

20.1%

Structurally Deficient

Condition Distribution

Good

37.1% (85)

Fair

36.7% (84)

Poor

20.1% (46)

SD

20.1% (46)

All Bridges (229)

Sort:

WINN ROAD

Over: NIPPERSINK CREEK

0.4 MI N US 12, McHenry, IL

Built 2012 Load: 32.4 t ADT: 3,800

BAY VIEW LANE

Over: PISTAKEE LAKE

0.7 MI NW BAY RD, McHenry, IL

Built 2004 Load: 33.0 t ADT: 300

COLLINS RD.

Over: N.BR.KISHWAUKEE RIV.

4.6M.W.OF WOODSTOCK, McHenry, IL

Built 1991 Load: 33.4 t ADT: 725

IL 47

Over: SMALL STREAM

7.8 M S STATE LINE, McHenry, IL

Built 1985 Load: 33.7 t ADT: 4,500

IL 31

Over: RR - UP

ILL 31 & US 14 INTER, McHenry, IL

Built 1971 Load: 34.3 t ADT: 34,400

IL 173

Over: MOKELER CREEK

1.5 M E OF US 14, McHenry, IL

Built 1930 Load: 34.3 t ADT: 5,350

RIVER ROAD

Over: RUSH CREEK

0.05 M E MILLER RD, McHenry, IL

Built 1982 Load: 35.3 t ADT: 1,400

US 14

Over: FOX RIVER

1 M W OF IL 22, McHenry, IL

Built 1990 Load: 35.6 t ADT: 25,500

STATE LINE ROAD

Over: PISCASAW CREEK

3.2 MI W OF US 14, McHenry, IL

Built 1967 Load: 35.6 t ADT: 850

KISHWAUKEE VALLEY

Over: RUSH CREEK

3.0M.W.OF IL-23, McHenry, IL

Built 1990 Load: 35.6 t ADT: 3,500

HIGHBRIDGE RD

Over: S BR KISHWAUKEE RIV

0.7 MI N OF UNION, McHenry, IL

Built 1992 Load: 36.0 t ADT: 650

ANTHONY RD

Over: COON CREEK

0.3 MI W OF RILEY RD, McHenry, IL

Built 1979 Load: 36.9 t ADT: 50

CHARLES J MILLER E

Over: FOX RIVER

0.1M.W.OF RIVER RD., McHenry, IL

Built 1989 Load: 36.9 t ADT: 8,150

IL 62

Over: FOX RIVER

0.15 M E OF IL 31, McHenry, IL

Built 1988 Load: 37.3 t ADT: 43,100

IL 176

Over: FOX RIVER

1.8 M W OF CNTY LINE, McHenry, IL

Built 1954 Load: 37.6 t ADT: 18,100

GREEN ROAD

Over: N BR KISHWAUKEE RIV

1.0 MI NW OF ALDEN R, McHenry, IL

Built 1975 Load: 37.9 t ADT: 100

US 14

Over: KISHWAUKEE RIVER

4 M SE OF IL 23, McHenry, IL

Built 1984 Load: 38.2 t ADT: 7,100

STREIT RD

Over: RUSH CREEK

0.4 MI W OF IL RT 23, McHenry, IL

Built 1985 Load: 38.2 t ADT: 700

IL 47

Over: SILVER CREEK

9.0 S OF STATE LINE, McHenry, IL

Built 1985 Load: 38.9 t ADT: 4,500

COUNTY LINE ROAD

Over: KISHWAUKEE RIVER

.4MI N OF US 20, McHenry, IL

Built 2016 Load: 38.9 t ADT: 475

PAGLES ROAD

Over: MOKELER CREEK

0.2 MI N OF STREIT R, McHenry, IL

Built 1980 Load: 40.2 t ADT: 100

JACKSON ROAD

Over: COON CREEK

0.2 MI W BURMA RD, McHenry, IL

Built 1980 Load: 40.8 t ADT: 125

IL 47

Over: NIPPERSINK CREEK

6.3 M S STATE LINE, McHenry, IL

Built 1985 Load: 41.5 t ADT: 4,400

DOTY RD

Over: KISHWAUKEE RIVER

0.3 M SO US-14, McHenry, IL

Built 2000 Load: 41.5 t ADT: 1,700

GREEENWOOD RD

Over: NIPPERSINK CREEK

2.5 MI N IL 120, McHenry, IL

Built 1993 Load: 41.8 t ADT: 3,850

DEEP CUT ROAD

Over: UNION PACIFIC RR

.7M N OF NELSON RD, McHenry, IL

Built 2004 Load: 42.4 t ADT: 100

YATES ROAD

Over: LAWRENCE CREEK

.8 MI W OF US-14, McHenry, IL

Built 2001 Load: 42.4 t ADT: 125

US 12

Over: NIPPERSINK CREEK

LAKE/MCHENRY CO.LINE, McHenry, IL

Built 1990 Load: 42.8 t ADT: 11,500

DUNHAM ROAD

Over: RUSH CREEK

1.3 MI W IL RTE 23, McHenry, IL

Built 2012 Load: 43.1 t ADT: 275

IL 31

Over: NIPPERSINK CREEK

1.5 M S OF US 12, McHenry, IL

Built 1927 Load: 44.1 t ADT: 7,600

LAWRENCE ROAD

Over: PISCASAW CREEK

.1MI E OF WEIDNER RD, McHenry, IL

Built 2013 Load: 44.7 t ADT: 350

IL 31

Over: EDGEWOOD RAVINE

0.5 M S OF IL 62, McHenry, IL

Built 1925 Load: 45.0 t ADT: 21,200

WALLACE DRIVE

Over: FOX RIVER SLOUGH

.1 MI W HICKORY NUT, McHenry, IL

Built 2008 Load: 46.3 t ADT: 175

GREEN STREET

Over: BOONE CREEK

.1 M S 120.2 M E 31, McHenry, IL

Built 1948 Load: 47.3 t ADT: 4,650

GRAF ROAD

Over: W BR PISCASAW CREEK

0.4 MI W MAXON RD, McHenry, IL

Built 2012 Load: 48.3 t ADT: 350

IL 23

Over: COON CREEK

0.6 M S I-90 TOLL, McHenry, IL

Built 2011 Load: 50.2 t ADT: 3,250

IL 173

Over: NIPPERSINK CR.

2M W of IL47, McHenry, IL

Built 2011 Load: 50.5 t ADT: 3,200

IL 120

Over: FOX RIVER

MCHENRY, McHenry, IL

Built 1985 Load: 51.8 t ADT: 18,100

FAU-168 (Wilmot Rd

Over: NIPPERSINK CREEK

0.2 MI. N. U.S. 12, McHenry, IL

Built 1960 Load: 51.8 t ADT: 7,200

BLIVIN STREET

Over: NIPPERSINK CREEK

.3MI N OF US 12, McHenry, IL

Built 2011 Load: 54.4 t ADT: 2,300

IL 176

Over: ISLAND LAKE OVERFLOW

ISLAND LAKE, McHenry, IL

Built 1929 Load: 58.3 t ADT: 19,200

NELSON ROAD

Over: Slough Creek

0.05 MI E MURRAY RD, McHenry, IL

Built 1963 Load: 63.2 t ADT: 1,800

RILEY RD

Over: STREAM

0.2 MI S GRANGE RD, McHenry, IL

Built 1930 Load: 75.8 t ADT: 275

IL 120

Over: BOONE CREEK

N LIMITS OF MCHENRY, McHenry, IL

Built 1973 Load: 85.2 t ADT: 25,900

Spring Creek Road

Over: Spring Creek

.25M W of Ridge Rd., McHenry, IL

Built 2012 Load: 87.2 t ADT: 625

LAWRENCE ROAD

Over: T OF W BR PISCASAW

0.8 M E OF PERKINS R, McHenry, IL

Built 1940 Load: 89.1 t ADT: 350

MAPLE RD. C.H.(T-5

Over: TRIB COON CREEK

.15 MI N BECK ROAD, McHenry, IL

Built 1945 Load: 89.1 t ADT: 1,150

HALIGUS ROAD

Over: KISHWAUKEE RIVER

1.5 M S 176 1.1 E 47, McHenry, IL

Built 1967 Load: 89.1 t ADT: 4,650

COUNTY LINE RD

Over: GERYUNE CREEK

0.8 N OF DUNHAM ROAD, McHenry, IL

Built 1959 Load: 15.9 t ADT: 1,000

SO UNION RD

Over: STREAM

0.3 N ADAMSON RD, McHenry, IL

Built 1964 Load: 24.3 t ADT: 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