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)

ALGONQUIN ROAD

Good

Over: WOODS CRK W RANDALL

0.7 MI W RANDALL RD, McHenry, IL

Built 2007 Load: 25.9 t ADT: 22,300

Olcott Road

Good

Over: Unnamed Ditch

Olcott at Carmack, McHenry, IL

Built 2016 Load: 29.2 t ADT: 125

KEYSTONE ROAD

Good

Over: NIPPERSINK CR TRIB

0.9 MI S TRYON GROVE, McHenry, IL

Built 1990 Load: 29.8 t ADT: 1,300

RAWSON BRIDGE ROAD

Good

Over: FOX RIVER

.8 MI W LAKE CO LINE, McHenry, IL

Built 1982 Load: 30.5 t ADT: 6,050

O'BRIEN ROAD

Good

Over: NIPPERSINK CREEK

1.5 MI W OF IL 47, McHenry, IL

Built 1976 Load: 32.1 t ADT: 850

RAKOW RD (CH V-29)

Good

Over: CRYSTAL CREEK

0.24 MI. N OF ACKMAN, McHenry, IL

Built 1994 Load: 32.4 t ADT: 30,600

GRAF ROAD

Good

Over: LITTLE BEAVER CREEK

.1M E OF COUNTY LINE, McHenry, IL

Built 2005 Load: 32.4 t ADT: 250

MARENGO ROAD

Good

Over: MOKELER CREEK

0.1 S. OF ILL 173, McHenry, IL

Built 2014 Load: 32.4 t ADT: 2,350

CRYSTAL LAKE RD

Good

Over: WOODS CREEK

0.75 MI N ALGONQUIN, McHenry, IL

Built 2006 Load: 32.4 t ADT: 3,200

ACKMAN RD

Good

Over: TRIB KISHWAUKEE RVR

0.3 MI W IL 47, McHenry, IL

Built 2006 Load: 32.4 t ADT: 2,400

KREUTZER ROAD

Good

Over: S BRNCH KISHWKEE RVR

.5MI W OF IL 47, McHenry, IL

Built 2014 Load: 32.4 t ADT: 2,650

BULLVALLEY RD.

Good

Over: BOONE CREEK

.4M.W.VALLEY HILL RD, McHenry, IL

Built 1991 Load: 32.4 t ADT: 2,350

OAK STREET

Good

Over: CRYSTAL CR

.24M W OF PYOTT, McHenry, IL

Built 1993 Load: 32.4 t ADT: 1,950

Jessie Road

Good

Over: Crystal Creek

0.3 M W of Pyott Rd, McHenry, IL

Built 2014 Load: 32.4 t ADT: 450

Woods Creek Lane

Good

Over: Woods Creek

0.3 mi S of Bunker H, McHenry, IL

Built 2021 Load: 32.4 t ADT: 800

Bunker Hill Drive

Good

Over: Woods Creek

0.67 mi W Randall Road, McHenry, IL

Built 1999 Load: 32.4 t ADT: 6,500

CHARLES MILLER Rd

Good

Over: FOX RIVER

0.1 MI W RIVER RD, McHenry, IL

Built 2013 Load: 33.0 t ADT: 8,150

IL 173

Good

Over: MOKELLER CREEK

0.08 M W OF US 14, McHenry, IL

Built 1993 Load: 33.4 t ADT: 5,500

HARMONY ROAD

Good

Over: UNNAMED CREEK

.6M NW OF HARMDY HIL, McHenry, IL

Built 2004 Load: 34.3 t ADT: 2,350

IL 31 & 120

Good

Over: BOONE CREEK

1.6M W OF CHAPEL HIL, McHenry, IL

Built 1990 Load: 34.7 t ADT: 30,300

Jankowski Rd/ TR85

Good

Over: Slough Creek

0.7M W IL47, McHenry, IL

Built 1975 Load: 35.0 t ADT: 175

US 14

Good

Over: RUSH CREEK

1.2 S HARVARD, McHenry, IL

Built 1984 Load: 35.3 t ADT: 15,200

IL 31

Good

Over: DUTCH CREEK

6.2 M S OF US 12, McHenry, IL

Built 1978 Load: 35.3 t ADT: 23,400

ALLENDALE ROAD

Good

Over: BR NIPPERSINK CR

1.5 E IL 47, McHenry, IL

Built 2009 Load: 35.3 t ADT: 750

IL 23

Good

Over: KISHWAUKEE R OVERFLO

1.3 MI. N. US 20, McHenry, IL

Built 2009 Load: 36.0 t ADT: 6,450

ALGONQUIN ROAD

Good

Over: CRYSTAL CREEK

02M W OF PYOTT, McHenry, IL

Built 2004 Load: 36.3 t ADT: 31,600

FRANKLINVILLE RD

Good

Over: TRIB KISH RIVER

0.1 MI S PERKINS RD, McHenry, IL

Built 2016 Load: 36.3 t ADT: 1,500

CARMACK ROAD

Good

Over: RUSH CREEK

0.5 W COX ROAD, McHenry, IL

Built 1993 Load: 36.9 t ADT: 250

DEERPASS ROAD

Good

Over: KISH RIVER N CHANNEL

0.7 MI N IL RTE 176, McHenry, IL

Built 2019 Load: 36.9 t ADT: 1,650

MUSGRAVE PARKWAY

Good

Over: UNAMED TRIB COON CRK

0.4 MI W SEEMAN RD, McHenry, IL

Built 2005 Load: 37.3 t ADT: 100

ALGONQUIN ROAD

Good

Over: WOODS CREEK

.4M W OF PYOTT RD, McHenry, IL

Built 2004 Load: 37.9 t ADT: 31,600

UNION ROAD / CHT-6

Good

Over: S BR KISHWAUKEE RIV

0.5 MI S IL RTE 176, McHenry, IL

Built 2011 Load: 37.9 t ADT: 1,800

LAWRENCE RD

Good

Over: TRIB LAWRENCE CREEK

1 MI N OF RAMER RD, McHenry, IL

Built 2016 Load: 37.9 t ADT: 850

IL 173

Good

Over: MOKELLER CREEK

0.39 M W OF US 14, McHenry, IL

Built 1999 Load: 38.2 t ADT: 5,500

IL 173

Good

Over: MOKELLER CREEK

0.26 M W OF US 14, McHenry, IL

Built 1999 Load: 38.2 t ADT: 5,500

BOTTERMAN ROAD

Good

Over: UNAMED TRIB COON CRK

0.4 MI W SEEMAN RD, McHenry, IL

Built 2004 Load: 38.9 t ADT: 350

IL 176

Good

Over: KISHWAUKEE RIVER

2 M E OF IL 47, McHenry, IL

Built 2000 Load: 39.2 t ADT: 10,200

ALDEN ROAD

Good

Over: BR NIPPERSINK CREEK

0.2MI.N OF IL 173, McHenry, IL

Built 2010 Load: 39.2 t ADT: 2,300

GRAF ROAD/TR-37

Good

Over: LAWRENCE CREEK

.3MNW OAK GR/HARVARD, McHenry, IL

Built 2011 Load: 39.5 t ADT: 375

Kishwaukee Valley

Good

Over: Rush Creek Tributary

0.20 Mi E of Root Rd, McHenry, IL

Built 2021 Load: 39.9 t ADT: 3,600

IL 173

Good

Over: N BR NIPPERSINK CR

0.5 M W OF US 12, McHenry, IL

Built 1932 Load: 40.8 t ADT: 5,100

IL 176

Good

Over: S BR KISHWAUKEE RIV

1.1 M E IL 23, McHenry, IL

Built 2008 Load: 40.8 t ADT: 5,700

S. Harrison Street

Good

Over: Crystal Lake Overflo

0.1 MI S IL 62, McHenry, IL

Built 2023 Load: 40.8 t ADT: 1,400

MAIN STREET

Good

Over: S RBR. KISHWAUKEE

0.1MI W COYNE STA RD, McHenry, IL

Built 1961 Load: 41.5 t ADT: 9,500

BAY ROAD

Good

Over: LILY LAKE DRAIN

1.0 MI SE OF CHAPELH, McHenry, IL

Built 1968 Load: 41.5 t ADT: 6,200

ALGONQUIN ROAD

Good

Over: GRAVEL PIT CREEK

.2M SE OF PYOTT, McHenry, IL

Built 2004 Load: 41.5 t ADT: 31,600

FRANKLINEVILLE ROA

Good

Over: KISHWAUKEE RIVER

0.3 MI N IL-176, McHenry, IL

Built 2014 Load: 41.8 t ADT: 1,500

KISHWAUKEE VALLEY

Good

Over: N BR KISHWAUKEE RIV

0.3 MI E SULLIVAN RD, McHenry, IL

Built 2010 Load: 42.4 t ADT: 4,150

AYER STREET

Good

Over: MOKELER CREEK

0.36 MI W. US 14, McHenry, IL

Built 2011 Load: 42.4 t ADT: 1,550

HILLTOP DRIVE

Good

Over: WOODS CREEK

.2M.N.HUNT.ALGQN.RD., McHenry, IL

Built 1985 Load: 42.8 t ADT: 1,600

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.