US Bridges

Winslow Road over Sugar River

Fair

Winnebago County, Illinois · 2 MI W of Shirland · Structure no. 101307700000000

Built
1985
40 years old
Condition
Fair
inspected June 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
188 ft
3 main spans
Daily traffic
150
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Winslow Road over Sugar River is a prestressed concrete box beam or girders - multiple carrying Winslow Road over Sugar River in Winnebago County, Illinois. It was built in 1985, so it is 40 years old, younger than the Illinois average of 45.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 150 vehicles a day, roughly 22% of them trucks, projected to reach 177 by 2046. The structure is 188 ft (57.2 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesWinslow Road
CrossesSugar River
Location2 MI W of Shirland
RouteCounty Highway 0
CountyWinnebago County
StateIllinois
Coordinates42.44516, -89.23379
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length188 ft (57.2 m)
Longest span62 ft (18.9 m)
Deck width24 ft (7.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic177 by 2046
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Winslow Road over Sugar River built?

It was built in 1985, making it 40 years old in 2025.

What condition is Winslow Road over Sugar River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Winslow Road over Sugar River carry?

About 150 vehicles per day (2022 count), of which roughly 22% are trucks.

How long is Winslow Road over Sugar River?

The structure is 188 ft (57.2 m) long with a longest span of 62 ft (18.9 m) and a deck 24 ft wide.

Who owns Winslow Road over Sugar River?

It is owned by the Town or Township Highway Agency.