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)

TR 93

Good

Over: YELLOW CREEK

1.5 MI SW WADDAMS GR, Stephenson, IL

Built 2021 Load: 38.9 t ADT: 50

DUBLIN RD.

Good

Over: YELLOW CR BRANCH

2 MI. N. PEARL CTY, Stephenson, IL

Built 1966 Load: 39.2 t ADT: 575

N HULBERT RD

Good

Over: MUDDY CREEK

5.0 MI SW ORANGEVILL, Stephenson, IL

Built 2021 Load: 40.2 t ADT: 200

FLANSBURG RD

Good

Over: BR OF PECATONICA RV

4.3 MI E LENA, Stephenson, IL

Built 2018 Load: 40.2 t ADT: 150

IL 26

Good

Over: RICHLAND CREEK

.5MI. S. ORANGEVILLE, Stephenson, IL

Built 2000 Load: 40.8 t ADT: 3,950

IL 26

Good

Over: DRAINAGE DITCH

2 MI. N. OF FREEPORT, Stephenson, IL

Built 1995 Load: 41.1 t ADT: 9,100

EAST BUCKEYE ROAD

Good

Over: COON CREEK

2 MI. E. OF IL 26, Stephenson, IL

Built 1992 Load: 41.5 t ADT: 50

WINNESHEIK ROAD

Good

Over: WINNESHEIK CREEK

2.0 MI E OF ILL 75, Stephenson, IL

Built 1976 Load: 41.8 t ADT: 150

ILL 73

Good

Over: YELLOW CREEK

3.2 MI SOUTH OF US20, Stephenson, IL

Built 1985 Load: 42.4 t ADT: 2,100

FAS 60 (CH 5)

Good

Over: BRANCH BROWN CREEK

3.0 MI SE DAKOTA, Stephenson, IL

Built 2023 Load: 42.8 t ADT: 900

SCHOOL STREET

Good

Over: CEDAR CREEK

S EDGE OF WINSLOW, Stephenson, IL

Built 2019 Load: 42.8 t ADT: 75

WEST PRESTON ROAD

Good

Over: PRESTON CREEK

1.0 MI S OF US RT 20, Stephenson, IL

Built 2022 Load: 43.1 t ADT: 50

OLD IL 26

Good

Over: W.BR. RICHLAND CREEK

1.5MI. S. WISC. LINE, Stephenson, IL

Built 1999 Load: 44.1 t ADT: 475

W CLAY RD

Good

Over: PLUM CREEK BRANCH

0.60 MI W SO KENT RD, Stephenson, IL

Built 1977 Load: 44.7 t ADT: 25

STATE LN RD(FAS104

Good

Over: INDIAN CREEK

2 MI. W. OF IL 73, Stephenson, IL

Built 1990 Load: 47.6 t ADT: 200

US 20

Good

Over: YELLOW CREEK

0.1 MI E JO DAV. CO., Stephenson, IL

Built 1995 Load: 48.9 t ADT: 5,750

WINSLOW ROAD

Good

Over: HONEY CREEK

1 MI E. WINSLOW, Stephenson, IL

Built 2003 Load: 49.2 t ADT: 1,200

ORANGEVILLE RD.

Good

Over: RICHLAND CREEK

ORANGEVILLE, Stephenson, IL

Built 1959 Load: 51.5 t ADT: 1,450

EAST LAMM ROAD

Good

Over: BR OF SUMNER CREEK

3.5 MINE GERMAN VAL, Stephenson, IL

Built 1976 Load: 53.1 t ADT: 50

US ROUTE 20 (FRNT

Good

Over: TRIB. PECATONICA RVR

W OF IL 26- N FREPRT, Stephenson, IL

Built 2011 Load: 54.4 t ADT: 200

IL 73

Good

Over: TRIB. YELLOW CREEK

PEARL CITY, Stephenson, IL

Built 2002 Load: 55.4 t ADT: 2,850

W FLORENCE ROAD

Good

Over: BR OF CRANE GROVE CR

0.2 MI E OF ILL 26, Stephenson, IL

Built 1984 Load: 65.1 t ADT: 50

US 20

Good

Over: PECATONICA RIV. TRIB

0.5 MI W TOWER ROAD, Stephenson, IL

Built 1985 Load: 97.2 t ADT: 7,300

S MILL GROVE ROAD

Poor

Over: YELLOW CREEK

3 MI SE PEARL CITY, Stephenson, IL

Built 1931 Load: 11.7 t ADT: 100

N. COON ROAD

Poor

Over: BRUSH CREEK

3.0 MI E ORANGEVILLE, Stephenson, IL

Built 1947 Load: 15.2 t ADT: 25

N AFOLKEY ROAD

Poor

Over: BRUSH CREEK

3.0 MI E ORANGEVILLE, Stephenson, IL

Built 1914 Load: 22.7 t ADT: 200

LORAN RD.

Poor

Over: PLUM CR. BR.

5.5 MI SW PEARL CITY, Stephenson, IL

Built 1934 Load: 26.2 t ADT: 225

HANCOCK AVENUE

Poor

Over: PECATONICA RIVER

NORTHEAST FREEPORT, Stephenson, IL

Built 1952 Load: 27.9 t ADT: 1,450

W. KOELLER ROAD

Poor

Over: EAST PLUM RIVER

4 MI. SW. PEARL CITY, Stephenson, IL

Built 1992 Load: 33.0 t ADT: 50

FARWELL BRIDGE ROA

Poor

Over: PECATONICA RIVER

3.5 MI NE RIDOTT, Stephenson, IL

Built 1971 Load: 36.6 t ADT: 350

OLD IL 26

Structurally Deficient

Over: RICHLAND CK&C WIS RR

1.2 MI N ORANGEVILLE, Stephenson, IL

Built 1929 Load: 18.1 t ADT: 475

OLD IL 26

Structurally Deficient

Over: E BR RICHLAND CREEK

.7 MI N ORANGEVILLE, Stephenson, IL

Built 1927 Load: 28.2 t ADT: 475

Related

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