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)

NORTH DAKOTA RD

Fair

Over: BRANCH CEDAR CREEK

3.0 MI N DAKOTA, Stephenson, IL

Built 1943 Load: 24.3 t ADT: 475

N IMOBERSTEG RD

Fair

Over: BR OF RICHLAND CREEK

1.0 MI N OF ONECO, Stephenson, IL

Built 1970 Load: 24.3 t ADT: 100

W PIN HOOK ROAD

Fair

Over: WADDAMS CREEK

0.7 MI E OF XRDS RD, Stephenson, IL

Built 1954 Load: 24.3 t ADT: 75

N. PARK ROAD

Fair

Over: YELLOW CREEK

N. ENT TO KRAPE PARK, Stephenson, IL

Built 1919 Load: 24.3 t ADT: 750

BOLTON ROAD

Fair

Over: YELLOW CREEK

4.0 MI SW FREEPORT, Stephenson, IL

Built 1958 Load: 24.6 t ADT: 850

WARREN ROAD

Fair

Over: E SPAFFORD CR

5 MI. WEST WINSLOW, Stephenson, IL

Built 1962 Load: 25.3 t ADT: 375

WEST RADERS ROAD

Fair

Over: BR OF YELLOW CREEK

1.4 MI W OF ILL 73, Stephenson, IL

Built 1965 Load: 25.6 t ADT: 75

WEST HERSHEY ROAD

Fair

Over: LOST CREEK

5 MI SE OF PEARL CIT, Stephenson, IL

Built 1974 Load: 25.6 t ADT: 25

W. SABIN CHURCH RD

Fair

Over: BOONE BR. LOST CREEK

2.5 MI. E. IL. RT 73, Stephenson, IL

Built 1967 Load: 25.9 t ADT: 300

W STATE LINE ROAD

Fair

Over: INDIAN CREEK

1.35 MI. W. ILL 73, Stephenson, IL

Built 1956 Load: 26.2 t ADT: 200

ORANGEVILLE RD.

Fair

Over: UNNAMED STREAM

0.5 MI E MCCONNELL, Stephenson, IL

Built 1958 Load: 26.9 t ADT: 525

BAILEYVILLE RD.

Fair

Over: YELLOW CREEK

1 MI. S. FREEPORT, Stephenson, IL

Built 1937 Load: 27.2 t ADT: 2,000

SO STONE CHURCH RO

Fair

Over: BR. OF PLUM RIVER

2.25 MI SO OF LORAN, Stephenson, IL

Built 1971 Load: 27.2 t ADT: 150

FARWELL BR. RD.

Fair

Over: PINK CREEK

3.5 MI NE RIDOTT, Stephenson, IL

Built 1971 Load: 27.9 t ADT: 350

SO WALNUT ROAD

Fair

Over: CRANES GROVE CREEK

2.0 MI S FREEPORT, Stephenson, IL

Built 1970 Load: 27.9 t ADT: 50

N HENDERSON ROAD

Fair

Over: BRUSH CREEK

1.5 MI SE ORANGEVILL, Stephenson, IL

Built 1957 Load: 27.9 t ADT: 125

CEDARVILLE RD

Fair

Over: BRANCH WADDAMS CREEK

1.0 MI E LENA, Stephenson, IL

Built 1936 Load: 28.2 t ADT: 1,300

EAST MILL ROAD

Fair

Over: CEDAR CREEK

2.0 MI NW OF DAKOTA, Stephenson, IL

Built 1968 Load: 28.5 t ADT: 75

ROCK CITY RD

Fair

Over: ROCK RUN CR

3.0 MI W DAVIS, Stephenson, IL

Built 1965 Load: 28.8 t ADT: 625

BEAVER ROAD

Fair

Over: RICHLAND CREEK

.3 MI. W. RED OAK, Stephenson, IL

Built 1983 Load: 30.1 t ADT: 75

ILL 26 (FAP 316)

Fair

Over: PECATONICA RIVER

0.4 MI N OF US 20BR, Stephenson, IL

Built 1983 Load: 30.8 t ADT: 12,500

WINSLOW ROAD

Fair

Over: PECATONICA RIVER

WINSLOW, Stephenson, IL

Built 1941 Load: 31.4 t ADT: 1,200

DUBLIN RD.

Fair

Over: YELLOW CREEK

2.5 MI NW PEARL CITY, Stephenson, IL

Built 1966 Load: 32.1 t ADT: 575

SABIN CHURCH ROAD

Fair

Over: LOST CREEK

2.8 MI. EAST ILL. 73, Stephenson, IL

Built 1968 Load: 32.1 t ADT: 300

US 20 EB

Fair

Over: SILVER CREEK

.5 MI E SPRINGFLD RD, Stephenson, IL

Built 1987 Load: 32.4 t ADT: 6,200

US 20

Fair

Over: CREEK

1.37MI E FAIRVIEW RD, Stephenson, IL

Built 1900 Load: 32.4 t ADT: 6,150

PEARL CITY RD

Fair

Over: YELLOW CR BRANCH

3 MI. EAST PEARL CTY, Stephenson, IL

Built 1927 Load: 32.4 t ADT: 2,600

WARREN ROAD

Fair

Over: SPAFFORD CREEK

6 MI. W. OF WINSLOW, Stephenson, IL

Built 1962 Load: 32.4 t ADT: 375

DEAN ROAD

Fair

Over: ROCK RUN CREEK

1.2 M W OF DAVIS, Stephenson, IL

Built 1964 Load: 32.4 t ADT: 50

W BRUSH CREEK ROAD

Fair

Over: RICHLAND CREEK

0.8 MI W OF ILL 26, Stephenson, IL

Built 1977 Load: 32.4 t ADT: 75

EAST LAMM ROAD

Fair

Over: CRANES GROVE CREEK

0.5 MI E OF ILL 26, Stephenson, IL

Built 1980 Load: 32.4 t ADT: 625

W WINNESHEIK ROAD

Fair

Over: PECATONICA RIVER

1.4 MI N OF US RT 20, Stephenson, IL

Built 1983 Load: 32.4 t ADT: 250

W RADERS ROAD

Fair

Over: BR OF YELLOW CREEK

0.1 MI E OF ILL 73, Stephenson, IL

Built 1981 Load: 32.4 t ADT: 50

OLD MILL ROAD

Fair

Over: MUDDY CREEK

.5 MI N OF MCCONNELL, Stephenson, IL

Built 1989 Load: 32.4 t ADT: 50

US 20 EB

Fair

Over: PECATONICA RIVER

NE OF FREEPORT, Stephenson, IL

Built 1982 Load: 33.4 t ADT: 6,800

US 20 WB

Fair

Over: SILVER CREEK

.5 MI E SPRINGFLD RD, Stephenson, IL

Built 1987 Load: 34.3 t ADT: 6,200

FAIRGROUND ROAD

Fair

Over: YELLOW CREEK

1.75 MI W ILL RT 26, Stephenson, IL

Built 1973 Load: 35.0 t ADT: 3,350

ILL 26

Fair

Over: CN RR

0.2 MI N OF US 20 BR, Stephenson, IL

Built 1986 Load: 35.3 t ADT: 12,500

US 20 EB

Fair

Over: SUMNER CREEK

1.2MI W WINNEBAGO CO, Stephenson, IL

Built 1959 Load: 36.3 t ADT: 12,700

IL 75

Fair

Over: PECATONICA RIVER

IN FREEPORT, Stephenson, IL

Built 1946 Load: 36.3 t ADT: 4,150

W STATE LINE ROAD

Fair

Over: SPAFFORD CREEK

5.0 MI. WT. RTE. 73, Stephenson, IL

Built 1930 Load: 36.6 t ADT: 50

W NEEBEL ROAD

Fair

Over: BR OF E PLUM RIVER

3.5 MI W PEARL CITY, Stephenson, IL

Built 1910 Load: 36.6 t ADT: 25

US ROUTE 20 EB

Fair

Over: BIKE TRAIL

1.75 MI W OF IL 26, Stephenson, IL

Built 1987 Load: 36.9 t ADT: 6,150

US20B WEST BOUND L

Fair

Over: SILVER CREEK

.5 MI E SPRINGFLD RD, Stephenson, IL

Built 1987 Load: 36.9 t ADT: 6,900

SCIOTO MILLS RD.

Fair

Over: RICHLAND CREEK

SCIOTO MILLS, Stephenson, IL

Built 1968 Load: 36.9 t ADT: 250

W WINNESHEIK RD

Fair

Over: DUCKS MISERY

2.5 MI W OF ILL 26, Stephenson, IL

Built 1897 Load: 37.3 t ADT: 250

FAP 316-IL 26

Fair

Over: BRUSH CREEK

1.7 MI S ORANGEVILLE, Stephenson, IL

Built 1991 Load: 37.6 t ADT: 4,600

ILL 73

Fair

Over: CEDAR CREEK

S EDGE OF WINSLOW, Stephenson, IL

Built 1990 Load: 37.6 t ADT: 1,250

IL 73

Fair

Over: TRIB. YELLOW CREEK

1.5 MI. S. OF LENA, Stephenson, IL

Built 1992 Load: 37.9 t ADT: 2,100

ILL 73

Fair

Over: WADDAMS CREEK

1.6 MI N OF LENA, Stephenson, IL

Built 1983 Load: 37.9 t ADT: 2,050

Related

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