Winnebago County, IL

475 public highway bridges

Winnebago County Bridge Snapshot

According to the Federal Highway Administration's 2024 National Bridge Inventory, Winnebago County, Illinois contains 475 public highway bridges. Roughly 27.8% are rated “Good,” 49.7% “Fair,” and 6.1% “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.

475
Total Bridges
27.8%
Good
49.7%
Fair
6.1%
Poor Condition

Condition Distribution

Good
27.8% (132)
Fair
49.7% (236)
Poor
6.1% (29)

All Bridges (475)

MONTAGUE RD

Fair

Over: E BR MOSQUITO CREEK

2 MI W MERIDIAN RD, Winnebago, IL

Built 1983 Load: 64.2 t ADT: 3,300

I-90

Fair

Over: STREAM

.1 MI N RIVERSIDE BL, Winnebago, IL

Built 1958 Load: 68.0 t ADT: 30,700

MERIDIAN RD

Fair

Over: UNNAMED CREEK

0.3 MI N STATE ST, Winnebago, IL

Built 1968 Load: 69.3 t ADT: 4,150

BEST ROAD

Fair

Over: PINK CREEK

0.7 MI S OF TRASK BR, Winnebago, IL

Built 1974 Load: 77.8 t ADT: 100

MERIDIAN RD

Fair

Over: S. BR. KENT CREEK

1.2 MI S OF 20 BR, Winnebago, IL

Built 1964 Load: 88.8 t ADT: 4,150

BRICK SCHOOL RD

Fair

Over: BEAVER RUN

0.7 MI E BARNINGHAM, Winnebago, IL

Built 1971 Load: 88.8 t ADT: 150

WHITE SCHOOL RD

Fair

Over: UNNAMED CREEK

0.4 MI N MCCURRY RD, Winnebago, IL

Built 1964 Load: 88.8 t ADT: 2,650

ALPINE ROAD

Fair

Over: DRAINAGE DITCH

0.1 M N WINDSOR, Winnebago, IL

Built 1972 Load: 88.8 t ADT: 16,800

SOUTH MAIN ST

Fair

Over: KENT CREEK

0.5 MI S OF STATE ST, Winnebago, IL

Built 1905 Load: 88.8 t ADT: 8,650

RED OAK LANE

Fair

Over: S BR KEITH CREEK

0.03 M N GUILFORD, Winnebago, IL

Built 1980 Load: 89.1 t ADT: 325

I-90

Fair

Over: STREAM

.97 MI S OF BELV. RD, Winnebago, IL

Built 1958 Load: 89.1 t ADT: 28,550

US 20

Fair

Over: DRAINAGE DITCH

.2 MI E MERIDIAN RD, Winnebago, IL

Built 1964 Load: 99.9 t ADT: 14,600

US 20

Fair

Over: KENT CREEK

1.3 MI E MERIDIAN RD, Winnebago, IL

Built 1964 Load: 99.9 t ADT: 14,600

I-90

Fair

Over: STREAM

1 MI NE OF ROSCOE, Winnebago, IL

Built 1958 Load: 99.9 t ADT: 28,550

GENOA ROAD

Good

Over: HACKEYS CREEK

0.1 MI E RIVER RD, Winnebago, IL

Built 1965 Load: 17.2 t ADT: 1,000

WEMPLETOWNROAD

Good

Over: BR N FORK KENT CR

0.5 MI N OF AUBURN R, Winnebago, IL

Built 1973 Load: 20.7 t ADT: 75

SMITH ROAD

Good

Over: COOLIDGE CREEK

1 MI E HOISINGTON RD, Winnebago, IL

Built 1970 Load: 21.7 t ADT: 1,050

PIERPONT AVE

Good

Over: S. BRANCH KENT CRK.

1.25 MI S OF STATE, Winnebago, IL

Built 1953 Load: 24.3 t ADT: 900

MILFORD AV

Good

Over: DRAINAGEWAY

0.3 MI W OF 11TH ST, Winnebago, IL

Built 1959 Load: 24.3 t ADT: 675

HANSON ST

Good

Over: S.E. DRAINAGEWAY

0.1 MI S HARRISON AV, Winnebago, IL

Built 1967 Load: 28.5 t ADT: 750

RAILROAD AVENUE

Good

Over: KEITH CREEK

0.03 MI W 9TH ST, Winnebago, IL

Built 2015 Load: 28.5 t ADT: 575

ROCKTON AVENUE

Good

Over: MUD CREEK

0.5 M S LATHAM ROAD, Winnebago, IL

Built 1981 Load: 29.2 t ADT: 675

RIVER ROAD

Good

Over: MAYBERRY CREEK

1.8 MI S GENOA ROAD, Winnebago, IL

Built 1998 Load: 29.5 t ADT: 175

BELL SCHOOL ROAD

Good

Over: KEITH CREEK

0.2 M N SPRING CR RD, Winnebago, IL

Built 1977 Load: 29.8 t ADT: 5,150

15TH STREET

Good

Over: KEITH CREEK

.2 MI S CHARLES ST, Winnebago, IL

Built 1996 Load: 29.8 t ADT: 600

CHER-OAK-WOOD LN

Good

Over: SPRING CREEK

0.1 MI N SPRINGBROOK, Winnebago, IL

Built 1966 Load: 30.1 t ADT: 425

BATES ROAD

Good

Over: GLEASON CREEK

0.8 MI S RT 75, Winnebago, IL

Built 1975 Load: 30.5 t ADT: 25

HARRISON AVE FR RD

Good

Over: MADIGAN CREEK

.2 MI E PERRYVIL RD, Winnebago, IL

Built 1963 Load: 31.1 t ADT: 800

MULFORD ROAD

Good

Over: SPRING CREEK

.01 N OF SPRINGBROOK, Winnebago, IL

Built 1964 Load: 31.1 t ADT: 18,300

BAXTER RD

Good

Over: UNNAMED CREEK

0.75 MI E OF IL 251, Winnebago, IL

Built 1974 Load: 31.1 t ADT: 2,850

STILLMAN VALLEY RO

Good

Over: CANAL CREEK

0.1 MI N CONDON ROAD, Winnebago, IL

Built 1977 Load: 31.1 t ADT: 300

FAP-525 (RvrSd Blv

Good

Over: Loves Park Creek

.2 MI E OF IL 251, Winnebago, IL

Built 2017 Load: 31.4 t ADT: 12,800

SPRINGFIELD AVE

Good

Over: CN RR

1/4 MI S CUNNINGHAM, Winnebago, IL

Built 2002 Load: 32.1 t ADT: 7,700

ILL 75

Good

Over: TIMOTHY CREEK

0.3 MI E MERIDIAN RD, Winnebago, IL

Built 2007 Load: 32.4 t ADT: 2,550

US RTE 20

Good

Over: COOLIDGE CREEK

4 MI E PECATONICA RD, Winnebago, IL

Built 2003 Load: 32.4 t ADT: 14,600

US BUS 20

Good

Over: DRAINAGE

.39 MI W MERIDIAN RD, Winnebago, IL

Built 2009 Load: 32.4 t ADT: 5,350

IL RTE 75

Good

Over: DRAINAGE

.11MI NE OWEN CENTER, Winnebago, IL

Built 2010 Load: 32.4 t ADT: 2,250

I-90

Good

Over: DRAINAGE

.13MI S PRAIRIE RD, Winnebago, IL

Built 2012 Load: 32.4 t ADT: 25,500

Forrest Hills Rd

Good

Over: DRAINAGE

470' N of IL 173, Winnebago, IL

Built 2014 Load: 32.4 t ADT: 10,400

SBI70/IL70 TRASK B

Good

Over: DRAINAGE DITCH

.2 MI E MERIDIAN RD, Winnebago, IL

Built 1991 Load: 32.4 t ADT: 4,600

ILL 173

Good

Over: DRAINAGE DITCH

.1 MI E OF ILL 251, Winnebago, IL

Built 2011 Load: 32.4 t ADT: 20,100

ORLANDO ST

Good

Over: DRAINAGE DITCH

.02MI N OF ILL 173, Winnebago, IL

Built 2011 Load: 32.4 t ADT: 5,500

STEPHENS RD

Good

Over: DRAINAGE

INTERSECTION @ HARRISON R, Winnebago, IL

Built 2023 Load: 32.4 t ADT: 200

FITZGERALD ROAD

Good

Over: ROCK CREEK

0.5 MI W PRAIRIE RD, Winnebago, IL

Built 1979 Load: 32.4 t ADT: 125

RIVERSIDE BLVD

Good

Over: KEITH CREEK

0.1 MI E PAULSON RD., Winnebago, IL

Built 1978 Load: 32.4 t ADT: 4,875

PAULSON ROAD

Good

Over: KEITH CREEK

0.08 MI S RIVERSIDE, Winnebago, IL

Built 1978 Load: 32.4 t ADT: 150

WINDSOR ROAD

Good

Over: DRAINAGE DITCH

0.1 M W ALPINE, Winnebago, IL

Built 1972 Load: 32.4 t ADT: 9,150

ALPINE ROAD

Good

Over: UNNAMED DRAINAGEWAY

0.1 MI S OF LINDEN RD, Winnebago, IL

Built 1985 Load: 32.4 t ADT: 6,600

ALPINE RD-FAP 412

Good

Over: S BR OF KEITH CR

.3 MI S OF STATE ST, Winnebago, IL

Built 2015 Load: 32.4 t ADT: 24,500

KISHWAUKEE ST

Good

Over: DRAINAGE DITCH

N OF SANDY HOLLOW RD, Winnebago, IL

Built 1992 Load: 32.4 t ADT: 7,750

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.