Whiteside County, IL

280 public highway bridges

Whiteside County Bridge Snapshot

Whiteside County, Illinois contains 280 public highway bridges in the FHWA National Bridge Inventory. Roughly 18.6% are rated “Good,” 63.6% “Fair,” 8.2% “Poor,” and 8.2% 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.

280

Total Bridges

18.6%

Good

8.2%

Poor

8.2%

Structurally Deficient

Condition Distribution

Good

18.6% (52)

Fair

63.6% (178)

Poor

8.2% (23)

SD

8.2% (23)

All Bridges (280)

Sort:

PENROSE RD.

Over: SPRING CREEK

1.5 MI. S.E. COLETA, Whiteside, IL

Built 1964 Load: 36.3 t ADT: 50

IL 84

Over: JOHNSON CREEK

2.5 M N ILL 136, Whiteside, IL

Built 1980 Load: 36.6 t ADT: 5,500

MELVIN ROAD

Over: HOWLAND CREEK

2 MI E OF ROCK FALLS, Whiteside, IL

Built 1960 Load: 36.6 t ADT: 650

SCIENCE RIDGE ROAD

Over: ELKHORN CREEK

1 MI NW OF STERLING, Whiteside, IL

Built 1958 Load: 36.6 t ADT: 2,300

FREEPORT RD

Over: JORDON CREEK

6 MI N STERLING, Whiteside, IL

Built 1953 Load: 36.9 t ADT: 1,800

ILL RT 84

Over: SPRING CREEK

.5 MI N ALBANY, Whiteside, IL

Built 1932 Load: 37.3 t ADT: 4,050

CLARK RD

Over: LITTLE ROCK CREEK

8.0 MI N MORRISON, Whiteside, IL

Built 1958 Load: 37.3 t ADT: 50

PENROSE RD

Over: JORDAN CREEK

6 MI N OF STERLING, Whiteside, IL

Built 1983 Load: 37.9 t ADT: 125

US RT 30

Over: ELKHORN CREEK

3.5 MI W ROCK FALLS, Whiteside, IL

Built 1940 Load: 38.2 t ADT: 5,300

MOLINE ROAD

Over: DRAINAGE DITCH

3 MI NE LYNDON, Whiteside, IL

Built 2006 Load: 38.2 t ADT: 1,400

YORKTOWN ROAD

Over: COUNTY DITCH NO 2

4.5 MI W OF TAMPICO, Whiteside, IL

Built 1955 Load: 38.2 t ADT: 100

US 30

Over: UNION PACIFIC RR

2.5 MI W OF MORRISON, Whiteside, IL

Built 1946 Load: 38.6 t ADT: 5,550

I-88 EB

Over: ROCK CREEK

4.5 MI. NE. ERIE, Whiteside, IL

Built 1975 Load: 38.6 t ADT: 6,550

I-88 WB

Over: ROCK CREEK

4.5 MI. NE. ERIE, Whiteside, IL

Built 1975 Load: 38.6 t ADT: 6,550

LYNN BLVD

Over: BR. ELKHORN CREEK

0.5 MI N LEFEVER RD, Whiteside, IL

Built 1995 Load: 39.2 t ADT: 1,975

GARDEN PLAIN ROAD

Over: CATTAILCREEK

5.2 MI. SW. US 30, Whiteside, IL

Built 1990 Load: 39.9 t ADT: 725

MOLINE RD

Over: ROCK CREEK

2.5 MI E ERIE, Whiteside, IL

Built 1971 Load: 40.2 t ADT: 1,000

IL 84

Over: BNSF RR

2 MI S OF CARROLL CO, Whiteside, IL

Built 1980 Load: 40.2 t ADT: 5,500

ILL RT 84

Over: CEDAR CREEK

1.5 MI N ALBANY, Whiteside, IL

Built 1931 Load: 40.8 t ADT: 4,050

ILL 40

Over: SKUNK CREEK

3.5 MI E COLETA, Whiteside, IL

Built 1957 Load: 40.8 t ADT: 2,400

US RT 30

Over: ROCK RIVER

1.5 MI W ROCK FALLS, Whiteside, IL

Built 1940 Load: 41.1 t ADT: 4,900

MOLINE RD

Over: DRAINAGE DITCH

1 MI NE OF LYNDON, Whiteside, IL

Built 1993 Load: 41.1 t ADT: 1,400

IL 78

Over: COON CREEK

2 MI S PROPHETSTOWN, Whiteside, IL

Built 1996 Load: 41.1 t ADT: 1,050

ILL 136

Over: MISSISSIPPI RV & RR

IN NORTH CLINTON, Whiteside, IL

Built 1974 Load: 41.8 t ADT: 10,500

ILL 172

Over: HENNEPIN CANAL FEEDR

3.2 MI W JCT ILL 40, Whiteside, IL

Built 1972 Load: 42.1 t ADT: 800

I-88 EB

Over: HENNEPIN CANAL FEEDR

1 MI S OF ROCK FALLS, Whiteside, IL

Built 1972 Load: 42.4 t ADT: 6,850

I-88 WB

Over: HENNEPIN CANAL FEEDR

1 MI S OF ROCK FALLS, Whiteside, IL

Built 1972 Load: 42.4 t ADT: 6,850

BLACK RD

Over: STREAM

1 MI E OF FENTON, Whiteside, IL

Built 1920 Load: 42.8 t ADT: 725

US RT 30

Over: ELKHORN CREEK

.58 MI W OF COMO RD, Whiteside, IL

Built 1940 Load: 43.1 t ADT: 5,300

IL 84

Over: CATTAIL CREEK

0.9 MI S JCT US 30, Whiteside, IL

Built 2008 Load: 43.1 t ADT: 3,950

I-88 EB

Over: ROCK RIVER

3 MI W ROCK FALLS, Whiteside, IL

Built 1972 Load: 43.4 t ADT: 6,850

I-88 WB

Over: ROCK RIVER

3 MI W ROCK FALLS, Whiteside, IL

Built 1972 Load: 43.4 t ADT: 6,850

IL 40

Over: SKUNK CREEK

6 MI. N. OF STERLING, Whiteside, IL

Built 1994 Load: 44.1 t ADT: 2,600

AVE "G"

Over: S BR ROCK RIVER

IN STERLING, Whiteside, IL

Built 1948 Load: 44.4 t ADT: 7,700

IL 40

Over: ELKHORN CREEK

2 MI N STERLING, Whiteside, IL

Built 2012 Load: 45.0 t ADT: 3,400

SPRING VALLEY ROAD

Over: BRANCH OTTER CREEK

6 MI NE OF FULTON, Whiteside, IL

Built 1963 Load: 45.0 t ADT: 175

FREEPORT RD

Over: SUGAR CREEK

2.7 MI. N. OF IL 2, Whiteside, IL

Built 1999 Load: 45.7 t ADT: 1,800

US 30

Over: CATTAIL CREEK

1 MI. E. OF IL 136, Whiteside, IL

Built 1992 Load: 45.7 t ADT: 5,550

IL 172

Over: COUNTY DITCH

2 MI N TAMPICO, Whiteside, IL

Built 2014 Load: 49.6 t ADT: 950

US 30

Over: SUNFISH SLOUGH

0.7 MI. W. OF IL 84, Whiteside, IL

Built 1999 Load: 49.9 t ADT: 9,650

I-88 EB

Over: ELKHORN CREEK

5.10 MI W IL 40, Whiteside, IL

Built 1972 Load: 50.2 t ADT: 6,300

I-88 WB

Over: ELKHORN CREEK

5.10 MI W IL 40, Whiteside, IL

Built 1972 Load: 50.2 t ADT: 6,300

I-88 EB

Over: B.N. R.R. TRACK

1.7 MI W ILL 78, Whiteside, IL

Built 1975 Load: 50.5 t ADT: 6,550

I-88 WB

Over: B.N. R.R. TRACK

1.7 MI W ILL 78, Whiteside, IL

Built 1975 Load: 50.5 t ADT: 6,550

BLACK RD

Over: STREAM

1 MI E OF FENTON, Whiteside, IL

Built 1920 Load: 50.5 t ADT: 725

ILL 40

Over: GREEN RIVER

1 MI S DEER GROVE, Whiteside, IL

Built 1928 Load: 50.9 t ADT: 2,550

US 30

Over: ROCK CREEK

NW EDGE MORRISON, Whiteside, IL

Built 2010 Load: 51.2 t ADT: 8,200

WEST LINCOLNWAY

Over: UP RR

1.3 MI N JCT US 30, Whiteside, IL

Built 1929 Load: 51.5 t ADT: 3,850

US 30 SPUR S B

Over: ELKHORN CREEK

.32MI S OF MOLINE RD, Whiteside, IL

Built 1972 Load: 51.8 t ADT: 4,100

PILGRIM RD

Over: JORDAN CREEK

6.5 MI N OF STERLING, Whiteside, IL

Built 1992 Load: 52.2 t ADT: 1,850

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