Stephenson County, IL

332 public highway bridges

Stephenson County Bridge Snapshot

Stephenson County, Illinois contains 332 public highway bridges in the FHWA National Bridge Inventory. Roughly 60.8% are rated “Good,” 32.5% “Fair,” 2.7% “Poor,” and 2.7% 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.

332
Total Bridges
60.8%
Good
2.7%
Poor
2.7%
Structurally Deficient

Condition Distribution

Good
60.8% (202)
Fair
32.5% (108)
Poor
2.7% (9)
SD
2.7% (9)

All Bridges (332)

HARLEM CENTER RD

Unknown

Over: US20 FREEPORT BYPASS

3 MI W OF IL 26, Stephenson, IL

Built 1987 ADT: 6,150

HENDERSON ROAD-TR2

Unknown

Over: US 20 FREEPORT BYPAS

1 MI EAST IL 26, Stephenson, IL

Built 1985 ADT: 7,300

TOWER ROAD

Unknown

Over: US20 FREEPORT BYPASS

NE OF FREEPORT, Stephenson, IL

Built 2004 ADT: 7,300

US 20 EB FREPRT BY

Unknown

Over: IL 75

NE OF FREEPORT, Stephenson, IL

Built 1986 ADT: 2,800

RIVER ROAD

Unknown

Over: US 20 FREEPORT BYPAS

2 MI NE OF FREEPORT, Stephenson, IL

Built 1984 ADT: 6,800

US 20 EB

Unknown

Over: ILL RT 26

1 MI N FREEPORT, Stephenson, IL

Built 1986 ADT: 12,500

US 20 WB

Unknown

Over: ILL RT 26

1 MI N FREEPORT, Stephenson, IL

Built 1986 ADT: 12,500

US20B WEST BOUND L

Unknown

Over: US20 FREEPORT BYPASS

.3 MI E SPRINGFLD RD, Stephenson, IL

Built 1987 ADT: 6,200

CN RAILROAD

Unknown

Over: ROCK CITY RD (FAS57)

1.5 MI S OF US 20, Stephenson, IL

Built 1901 ADT: 1,100

CN RAILRAOD

Unknown

Over: BOLTON RD (FAS78)

.2 MI S. OF US 20, Stephenson, IL

Built 1901 ADT: 900

CN RR

Unknown

Over: S BROWNS MILL RD

1 MI S US 20, Stephenson, IL

Built 1927 ADT: 100

CN RR

Unknown

Over: E LAMM RD

6 MI E FREEPORT, Stephenson, IL

Built 1900 ADT: 75

CN RR

Unknown

Over: YELLOW CREEK RD

I MI E OF FREEPORT, Stephenson, IL

Built 1922 ADT: 100

E. MCCONNELL RD.

Fair

Over: CEDAR CREEK

2.5 MI N DAKOTA, Stephenson, IL

Built 1958 ADT: 700

FACTORY ROAD

Fair

Over: BRNCH OF CEDAR CRK

0.5 MI N MCCONNEL RD, Stephenson, IL

Built 1951 Load: 14.6 t ADT: 100

TR-189 (MAIZE RD)

Fair

Over: BR OF PECATONICA RIV

0.9 MI E ILL RT 75, Stephenson, IL

Built 1953 Load: 14.9 t ADT: 75

TR-201 E CURRIER R

Fair

Over: BR OF PECATONICA RIV

1.4 M E OF ILL RT 26, Stephenson, IL

Built 1962 Load: 14.9 t ADT: 50

NORTH MILL RD

Fair

Over: BR OF PECATONICA RIV

2.5 MI SE WINSLOW, Stephenson, IL

Built 1952 Load: 15.6 t ADT: 50

EAST ANGLE

Fair

Over: COON CREEK

1.0 MI. E. ILL RT.26, Stephenson, IL

Built 1950 Load: 17.5 t ADT: 50

N FLANSBURG ROAD

Fair

Over: BR OF PECATONICA RIV

4.0 MI E OF LENA, Stephenson, IL

Built 1947 Load: 17.5 t ADT: 150

FAIRVIEW ROAD

Fair

Over: BR OF PECATONICA RIV

1.8 MI E ILL RT 26, Stephenson, IL

Built 1952 Load: 17.5 t ADT: 25

PRESTON RD

Fair

Over: BR OF PRESTON CREEK

1.0 MI S OF US RT 20, Stephenson, IL

Built 1941 Load: 17.5 t ADT: 50

OPPOLD RD

Fair

Over: BR PECATONICA RIVER

1.5 MI W ILL RT 26, Stephenson, IL

Built 1935 Load: 17.5 t ADT: 50

CO DIVIDE RD

Fair

Over: BR OF YELLOW CREEK

5.0 MI W OF LENA, Stephenson, IL

Built 1952 Load: 17.5 t ADT: 50

N AFOLKEY ROAD

Fair

Over: CEDAR CREEK

2.5 MI NW OF DAKOTA, Stephenson, IL

Built 1974 Load: 18.1 t ADT: 525

NORTH MILL RD

Fair

Over: BR OF PECATONICA RIV

2.0 MI E OF WINSLOW, Stephenson, IL

Built 1968 Load: 18.1 t ADT: 50

W SHIPPEE ROAD

Fair

Over: BR OF WADDAMS CREEK

2.5 MI N OF LENA, Stephenson, IL

Built 1920 Load: 19.4 t ADT: 75

W FLORENCE RD

Fair

Over: BR OF YELLOW CREEK

1.8 MI. W.IL. RT. 26, Stephenson, IL

Built 1940 Load: 19.4 t ADT: 175

WEST BLAIR

Fair

Over: SPAFFORD CREEK

6.0 MI. W WINSLOW, Stephenson, IL

Built 1953 Load: 19.8 t ADT: 50

E. CURRIER ROAD

Fair

Over: BR OF PECATONICA RIV

1.2 MI E OF IL RT 26, Stephenson, IL

Built 1961 Load: 20.1 t ADT: 50

E. BRICK SCHOOL RO

Fair

Over: BR OF WINNESHIEK CRE

0.5 MI E ILL RT 75, Stephenson, IL

Built 1959 Load: 20.4 t ADT: 75

N FLANSBERG ROAD

Fair

Over: WADDAMS CREEK

4.5 MI NE OF LENA, Stephenson, IL

Built 1962 Load: 20.7 t ADT: 150

N SHADY VIEW ROAD

Fair

Over: BRUSH CREEK

0.5 MI E OF ILL 26, Stephenson, IL

Built 1936 Load: 20.7 t ADT: 25

W HOWARDSVILLE ROA

Fair

Over: BR OF YELLOW CREEK

1.3 MI W OF LENA, Stephenson, IL

Built 1915 Load: 21.1 t ADT: 25

N. WAYNE ROAD

Fair

Over: BR OF SPAFFORD CREEK

5.0 MI W WINSLOW, Stephenson, IL

Built 1969 Load: 21.1 t ADT: 50

NORTH BOLENDER RD

Fair

Over: BR OF E RICHLAND CR

1.5 MI N ORANGEVILLE, Stephenson, IL

Built 1968 Load: 21.1 t ADT: 100

WARREN RD.

Fair

Over: INDIAN CREEK

3 MI. WEST WINSLOW, Stephenson, IL

Built 1962 Load: 21.4 t ADT: 375

N. DAKOTA RD

Fair

Over: WINNESHEIK CR BRANCH

2.0 MI S OF DAKOTA, Stephenson, IL

Built 1962 Load: 21.4 t ADT: 125

W. STEPHENSON ST.

Fair

Over: BR OF YELLOW CREEK

5.0 MI W OF FREEPORT, Stephenson, IL

Built 1969 Load: 21.7 t ADT: 125

E. RIVER ROAD

Fair

Over: BRANCH PECATONICA R

3.0 MI E FREEPORT, Stephenson, IL

Built 1937 Load: 22.0 t ADT: 375

LAKE RD

Fair

Over: WADDAMS CR

2.0 MI N LENA, Stephenson, IL

Built 1959 Load: 22.0 t ADT: 475

WEST LILY CREEK RO

Fair

Over: BR OF PRESTON CREEK

0.7 MI S OF US RT 20, Stephenson, IL

Built 1969 Load: 22.4 t ADT: 750

E. ST. JAMES RD.

Fair

Over: BRUSH CREEK

3.5 MI. E. ILL RT.26, Stephenson, IL

Built 1960 Load: 23.0 t ADT: 75

ILL 73

Fair

Over: TRIB PECATONICA R

1.5 MI S WINSLOW, Stephenson, IL

Built 1931 Load: 24.0 t ADT: 1,250

BECKER SCHOOL RD.

Fair

Over: BR OF YELLOW CREEK

3.5 MI SW FREEPORT, Stephenson, IL

Built 1965 Load: 24.0 t ADT: 850

ILL 26

Fair

Over: CEDAR CREEK

N EDGE OF CEDARVILLE, Stephenson, IL

Built 1981 Load: 24.3 t ADT: 5,400

W. OAK STREET ROAD

Fair

Over: BR OF YELLOW CREEK

1.5 MI W OF LENA, Stephenson, IL

Built 1950 Load: 24.3 t ADT: 100

TOWN HALL RD

Fair

Over: BR OF PECATONICA RIV

0.5 MI E ILL RT 75, Stephenson, IL

Built 1954 Load: 24.3 t ADT: 75

BOLTON RD

Fair

Over: BR OF PRESTON CREEK

3.0 MI W OF FREEPORT, Stephenson, IL

Built 1945 Load: 24.3 t ADT: 750

FAS 61 W. McConn.R

Fair

Over: BRANCH SPRING CREEK

4.0 MI NE LENA, Stephenson, IL

Built 1940 Load: 24.3 t ADT: 725

Related

Data sourced from official U.S. government datasets. See our methodology for details. Retrieved and formatted by PlainBridges Editorial