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)

Sort:

ELEVATOR RD

Over: I-90

1 MI E OF ROSCOE, Winnebago, IL

Built 1958 ADT: 57,100

SPRING CREEK RD

Over: I-90

2 MI N RT 20 BR, Winnebago, IL

Built 1958 ADT: 66,300

BELVIDERE RD

Over: I-90

2.5 MI N ILL 173, Winnebago, IL

Built 1958 ADT: 57,100

HARLEM RD

Over: I-90

2 MI S OF ILL 173, Winnebago, IL

Built 1958 ADT: 61,400

ROCKTON RD

Over: I-90

2.5 MI S OF ILL 75, Winnebago, IL

Built 1958 ADT: 57,100

SWANSON RD

Over: I-90

1.5 MI N ILL 173, Winnebago, IL

Built 1958 ADT: 57,100

ROTE RD

Over: I-90

2 MI E ROCKFORD, Winnebago, IL

Built 1958 ADT: 66,300

UNION PACIFIC RR

Over: ILL 2

S EDGE RKFD CBD, Winnebago, IL

Built 1900 ADT: 8,650

DM&E RR

Over: GLEASMAN RD

1.5 MI SW ROSCOE, Winnebago, IL

Built 1900 ADT: 1,400

ICE RR

Over: PRAIRIE HILL RD

0.4 MI SE S. BLUFF, Winnebago, IL

Built 1966 ADT: 4,200

CMST P&P RR

Over: GOEKE RD

.5 MI N OF ILL 75, Winnebago, IL

Built 1900 ADT: 35

ICE RR

Over: ATWOOD FOR PRES RD

1.5 MI E OF ILL 2, Winnebago, IL

Built 1900 ADT: 100

UNION PACIFIC RR

Over: TAY ST & KENT CREEK

SW ROCKFORD, Winnebago, IL

Built 1900 ADT: 750

UP RR

Over: 9TH STREET

SE ROCKFORD, Winnebago, IL

Built 1890 ADT: 2,100

UNION PACIFIC RR

Over: BROADWAY

SE ROCKFORD, Winnebago, IL

Built 1900 ADT: 8,700

UP RR

Over: 20TH STREET

SE ROCKFORD, Winnebago, IL

Built 1900 ADT: 6,950

RIVERSIDE RD

Over: I-90

2 MI E LOVES PARK, Winnebago, IL

Built 2009 ADT: 66,300

Pedestrian Walkway

Over: I-90

07320219621 004, Winnebago, IL

ROCK CUT ST. PK. R

Over: I-90 (NW TOLLWAY)

1.5 MI. S. OF IL 173, Winnebago, IL

Built 1989 ADT: 61,400

I-90 NB

Over: ILL RTE 173

3 MI S OF ROSCOE, Winnebago, IL

Built 2007 ADT: 10,300

I-90 SB

Over: ILL RTE 173

3 MI S OF ROSCOE, Winnebago, IL

Built 2007 ADT: 10,300

MCCURRY RD

Over: I-90 (N & W)

1 MI E OF ROSCOE, Winnebago, IL

Built 2006 ADT: 57,100

NEWBURG RD

Over: I-90

.10 W OF I-39, Winnebago, IL

Built 2008 ADT: 70,600

RAMP I-39NB TO I90

Over: I-90

.42MI E NEWBURG RD, Winnebago, IL

Built 2009 ADT: 4,850

I-90 N B

Over: US 20 BR

2 MI E ROCKFORD, Winnebago, IL

Built 2009 ADT: 26,100

I-90 S B

Over: US 20 BR

1.2M W OF NEWBURG RD, Winnebago, IL

Built 2009 ADT: 26,100

I 90 WB TO I 39 SB

Over: I-90

.5 MI N US 20, Winnebago, IL

Built 2009 ADT: 50,600

MILL RD

Over: I 90

.5 MI N OF CHERRY VA, Winnebago, IL

Built 2013 ADT: 50,600

TR-187 (KELLEY RD)

Over: SUMNER CREEK

0.5 MI E KLINGER RD, Winnebago, IL

Built 1948 Load: 8.7 t ADT: 125

TR-75 (OLIVER ROAD

Over: TUNNISON CREEK

0.5 MI N KNAPP ROAD, Winnebago, IL

Built 1961 Load: 10.7 t ADT: 50

WILLOWBROOK RD

Over: N KINNIKINNICK CR

0.2 M N ELEVATOR RD, Winnebago, IL

Built 1985 Load: 12.3 t ADT: 2,900

TR-83 (KNAPP ROAD)

Over: TUNNISON CREEK

0.5 MI W HARRISON RD, Winnebago, IL

Built 1961 Load: 12.3 t ADT: 75

TELEGRAPH RD

Over: UNNAMED CREEK

0.7 MI W EDDIE ROAD, Winnebago, IL

Built 1950 Load: 13.0 t ADT: 1,200

CAMPBELL ROAD

Over: N. BR. PINK CR.

0.7 M E OF CO. LINE, Winnebago, IL

Built 1951 Load: 13.6 t ADT: 50

20TH ST

Over: KEITH CREEK

0.02 MI S CHARLES, Winnebago, IL

Built 1928 Load: 15.6 t ADT: 7,750

MONTAGUE RD

Over: W BR MILL CR

1.27 MI E OF PEC. RD, Winnebago, IL

Built 1960 Load: 16.5 t ADT: 1,200

YALE BRIDGE RD

Over: RACCOON CREEK

AT CLOVER ROAD, Winnebago, IL

Built 1951 Load: 16.5 t ADT: 800

CUNNINGHAM RD

Over: GROVE CREEK

0.25 MI W CONGER RD, Winnebago, IL

Built 1960 Load: 17.5 t ADT: 250

MANCHESTER ROAD

Over: DRY RUN CREEK

1 MI E WILLOWBROOK, Winnebago, IL

Built 1960 Load: 17.5 t ADT: 675

MIDDLE ROAD

Over: DRY RUN CREEK

0.7 M E MANCHESTR RD, Winnebago, IL

Built 1965 Load: 18.1 t ADT: 250

JUDD ROAD

Over: UNNAMED CREEK

0.1 MI S CAMPBELL RD, Winnebago, IL

Built 1956 Load: 18.8 t ADT: 10

ROCK GROVE RD

Over: N. BR. OTTER CREEK

.25 MI E BEST ROAD, Winnebago, IL

Built 1988 Load: 19.1 t ADT: 425

AUBURN RD

Over: UNNAMED CREEK

2 MI NE OF WINNEBAGO, Winnebago, IL

Built 1936 Load: 19.1 t ADT: 1,250

PECATONICA RD

Over: GROVE CREEK

0.5 MI S US 20, Winnebago, IL

Built 1927 Load: 19.4 t ADT: 1,300

SAFFORD ROAD

Over: KENT CREEK

0.5 MI E SPRINGFIELD, Winnebago, IL

Built 1957 Load: 19.4 t ADT: 675

ROCKTON AVE

Over: BR MUD CREEK

1 MI S LATHAM RD, Winnebago, IL

Built 1956 Load: 19.8 t ADT: 675

CHARLES ST

Over: KEITH CREEK

1.5 MI W ALPINE RD, Winnebago, IL

Built 1940 Load: 20.1 t ADT: 14,700

HAMBORG ROAD

Over: S KINNIKINNICK CR

0.1 M S BURR OAK RD, Winnebago, IL

Built 1984 Load: 20.1 t ADT: 1,100

SPRINGFIELD AVE

Over: DRAINAGE DITCH

.4 MI. N. AUBURN ST., Winnebago, IL

Built 1960 Load: 20.4 t ADT: 7,600

EDDIE ROAD

Over: BR PECATONICA RIVER

AT FISH HATCHERY RD, Winnebago, IL

Built 1936 Load: 20.4 t ADT: 75

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

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Compiled by PlainBridges, Independent data publisher

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.