McHenry County, IL

229 public highway bridges

McHenry County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, McHenry County, Illinois contains 229 public highway bridges. Roughly 37.1% are rated “Good,” 36.7% “Fair,” and 20.1% “Poor.” Poor means the lowest applicable deck, superstructure, substructure, or culvert rating is 4 or below on the 0–9 NBI scale. It is a condition category, not a live safety or closure decision.

Responsible agencies inspect covered bridges on risk-based intervals under current NBIS rules and submit inventory data to FHWA annually. The list below shows every NBI-tracked bridge in the county. Use the “Sort by” controls to change the ordering, and click any row for its reported inspection date, traffic count, and condition fields.

Source: FHWA National Bridge Inventory. See methodology for full definitions.

229
Total Bridges
37.1%
Good
36.7%
Fair
20.1%
Poor Condition

Condition Distribution

Good
37.1% (85)
Fair
36.7% (84)
Poor
20.1% (46)

All Bridges (229)

HEMMINGSON RD.

Good

Over: S.BR.KISHWAUKEE RIV.

2.0M.E.OF UNION, McHenry, IL

Built 1991 Load: 43.4 t ADT: 500

North Union Road

Good

Over: Kishwaukee River

.8 MI N IL 176, McHenry, IL

Built 2019 Load: 43.4 t ADT: 500

US 14

Good

Over: MOKELER CREEK

US 14 N OF IL 173, McHenry, IL

Built 2006 Load: 44.4 t ADT: 12,400

EDGEWOOD ROAD

Good

Over: RAT CREEK

0.2 W IL 31, McHenry, IL

Built 1954 Load: 44.7 t ADT: 4,750

IL 23

Good

Over: KISHWAUKEE RV RELIEF

1.4 MI. N. US 20, McHenry, IL

Built 2009 Load: 45.0 t ADT: 6,450

HILL ROAD

Good

Over: N BR NIPPERSINK CRK

0.35 MI E / US 12, McHenry, IL

Built 2014 Load: 45.7 t ADT: 750

US 14

Good

Over: LAWRENCE CREEK

1.84 S STATE LINE, McHenry, IL

Built 2015 Load: 46.0 t ADT: 6,500

IL 176

Good

Over: OVERLAND FLOW AREA

0.31 M W N UNION RD, McHenry, IL

Built 2008 Load: 46.3 t ADT: 5,700

IL 31 NB EXIT RAM

Good

Over: CRYSTAL CREEK

0.1 M S Algonquin Rd, McHenry, IL

Built 2013 Load: 46.3 t ADT: 1,200

IL 173

Good

Over: PISCASAW CR OVERFLOW

1.88 M E OF CO. LINE, McHenry, IL

Built 2007 Load: 46.7 t ADT: 4,550

RANDALL RD

Good

Over: CREEK

RANDALL RD AT, McHenry, IL

Built 1970 Load: 48.0 t ADT: 28,800

IL 176

Good

Over: DRAINAGE DITCH

.2M E OF IL23, McHenry, IL

Built 2012 Load: 48.6 t ADT: 5,700

BARNARDS MILL ROAD

Good

Over: NIPPERSINK CR

AT HOWE RD INTERSECT, McHenry, IL

Built 1950 Load: 48.6 t ADT: 4,200

IL 47

Good

Over: KISHWAUKEE RIVER

4.7M S of US14, McHenry, IL

Built 2021 Load: 48.9 t ADT: 18,600

HEMMINGSON ROAD

Good

Over: TRIB S BR KSHWKE RVR

.55 MI E OLSEN RD, McHenry, IL

Built 1940 Load: 48.9 t ADT: 500

IL 31 SB ENT RAMP

Good

Over: CRYSTAL CREEK

0.1 M S Algonquin Rd, McHenry, IL

Built 2013 Load: 50.2 t ADT: 1,500

Main Street

Good

Over: Crystal Lake Overflo

200 ft S of IL 62, McHenry, IL

Built 2020 Load: 50.2 t ADT: 5,750

LAWRENCE ROAD/CH-T

Good

Over: LAWRENCE CREEK

.3MI NW OAK GROVE RD, McHenry, IL

Built 2011 Load: 50.9 t ADT: 400

IL 173

Good

Over: PISCASAW CREEK

2 M E OF CNTY LINE, McHenry, IL

Built 2007 Load: 51.2 t ADT: 4,550

I-90 WB

Good

Over: COON CREEK

0.5 MI E ANTHONY RD, McHenry, IL

Built 2013 Load: 51.5 t ADT: 28,500

I-90 EB

Good

Over: COON CREEK

0.5 MI E/ ANTHONY RD, McHenry, IL

Built 2013 Load: 51.5 t ADT: 28,500

CHARLES RD

Good

Over: SILVER CR

0.6 M NW OF ILL 47, McHenry, IL

Built 1978 Load: 51.8 t ADT: 6,500

DUNHAM ROAD/CHA-29

Good

Over: N BR KISHWAUKEE RIV

1.2 MI W OF US 14, McHenry, IL

Built 2011 Load: 52.8 t ADT: 250

OAK GROVE ROAD

Good

Over: DRAINAGE DITCH

.7 MI SW US 14, McHenry, IL

Built 2018 Load: 53.8 t ADT: 775

JOHNSBURG ROAD

Good

Over: DUTCH CREEK

.6 M E IL RT31, McHenry, IL

Built 1994 Load: 54.4 t ADT: 13,500

IL 31

Good

Over: CRYSTAL CREEK

0.1 M S Algonquin Rd, McHenry, IL

Built 2013 Load: 56.1 t ADT: 17,900

RANDALL ROAD

Good

Over: WOODS CREEK

0.3 M S OF MILLER RD, McHenry, IL

Built 1969 Load: 56.1 t ADT: 28,800

MASON HILL RD

Good

Over: STREAM

0.6 MI W CRYST LK RD, McHenry, IL

Built 1967 Load: 56.7 t ADT: 2,600

IL 176

Good

Over: KISHWAUKEE RIVER

0.9 M W OF GEE RD, McHenry, IL

Built 2008 Load: 57.3 t ADT: 8,600

IL 47

Good

Over: S BR KISHWAUKEE RV

2.3 M N of I-90, McHenry, IL

Built 2011 Load: 58.6 t ADT: 25,200

TR-155 (Justen Rd)

Good

Over: Trib. Fox River

0.5 MI N WRIGHT RD, McHenry, IL

Built 2018 Load: 60.6 t ADT: 675

IL 23

Good

Over: KISHWAUKEE RIVER

0.7 M N OF IL 176, McHenry, IL

Built 2009 Load: 62.5 t ADT: 6,450

COLLINS ROAD

Good

Over: TRIB N BR KISWKE RVR

.25 MI E SULLIVAN RD, McHenry, IL

Built 1968 Load: 66.4 t ADT: 725

WHITE OAKS RD

Poor

Over: W BRANCH PISCASAW CR

1.8 MI N PERKINS RD, McHenry, IL

Built 1947 ADT: 50

PIONEER RD

Poor

Over: NIPPERSINK CREEK

0.7 M S W SOLON RD, McHenry, IL

Built 1982 ADT: 325

VANDER KARR RD

Poor

Over: BR OF NIPPERSINK CR

2 MI E OF IL 47, McHenry, IL

Built 1981 ADT: 1,550

GRAF ROAD

Poor

Over: PISCASAW CREEK

0.4 MI E OF MAXON RD, McHenry, IL

Built 1998 ADT: 375

LAKE VIEW DRIVE

Poor

Over: ISLAND LAKE

N OF ILL 176, McHenry, IL

Built 1975 ADT: 450

PAULSEN RD

Poor

Over: N BR KISHWAUKEE RIV

1.7 MI S OF STREIT R, McHenry, IL

Built 1959 Load: 6.2 t ADT: 250

COUNTY LINE RD

Poor

Over: KISHWAUKEE OVERFLOW

0.5 M N OFUS 20, McHenry, IL

Built 1978 Load: 8.1 t ADT: 475

MARENGO ROAD

Poor

Over: RUSH CREEK

0.6 MI S AIRPORT RD, McHenry, IL

Built 1956 Load: 8.7 t ADT: 850

ALGONQUIN RD

Poor

Over: SPRING CR

0.1 MI SW PLUM TREE, McHenry, IL

Built 1986 Load: 8.7 t ADT: 3,200

FLAT IRON ROAD

Poor

Over: MOKELER CREEK

0.4 MI. S. ILL 173, McHenry, IL

Built 1950 Load: 9.7 t ADT: 1,550

CH-27 (JOHNSON RD)

Poor

Over: NIPPERSINK CR

0.6 M NE DURKEE RD, McHenry, IL

Built 1978 Load: 10.7 t ADT: 300

PLEASANT VALLEY RD

Poor

Over: KISHWAUKEE RIVER

0.2 MI W OF MCCUE RO, McHenry, IL

Built 1978 Load: 11.3 t ADT: 325

MURRAY ROAD

Poor

Over: SLOUGH CREEK

.15 MI N NELSON RD, McHenry, IL

Built 1968 Load: 14.3 t ADT: 225

BUNKER HILL ROAD

Poor

Over: DRAINAGE DITCH

1.8 MI WEST OF IL 23, McHenry, IL

Built 1970 Load: 14.6 t ADT: 100

FAU-165 (W Solon R

Poor

Over: N Br Nippersink Cr

0.5M E IL-31, McHenry, IL

Built 1983 Load: 14.6 t ADT: 325

FAS-39 (HUNTER ROA

Poor

Over: Little Beaver Creek

0.5 W WHITE OAKS RD, McHenry, IL

Built 1963 Load: 16.8 t ADT: 1,650

COUNTY LINE RD

Poor

Over: PISCASAW CREEK

2.5 MI SE OF CAPRON, McHenry, IL

Built 1959 Load: 17.2 t ADT: 475

Read our methodology - how this data is sourced, computed, and verified.

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Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainBridges

Every figure on PlainBridge is rendered directly from federal source data, no number is typed in by an editor. This page draws directly on federal source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.