US Bridges

Cth S over S Fk Willow River

Good

St. Croix County, Wisconsin · 0.7M E JCT Cth O to S · Structure no. B55008300000000

Built
1982
43 years old
Condition
Good
inspected October 2023
Type
Slab
Wood or Timber
Length
36 ft
2 main spans
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

Cth S over S Fk Willow River is a wood or timber slab carrying Cth S over S Fk Willow River in St. Croix County, Wisconsin. It was built in 1982, so it is 43 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 150 vehicles a day, projected to reach 217 by 2042. The structure is 36 ft (10.9 m) long and 32 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCth S
CrossesS Fk Willow River
Location0.7M E JCT Cth O to S
RouteCounty Highway 0S
Coordinates45.12188, -92.32501
Functional classRural Local

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating71.7 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length36 ft (10.9 m)
Longest span17 ft (5.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic217 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cth S over S Fk Willow River built?

It was built in 1982, making it 43 years old in 2025.

What condition is Cth S over S Fk Willow River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in October 2023.

How much traffic does Cth S over S Fk Willow River carry?

About 150 vehicles per day (2022 count).

How long is Cth S over S Fk Willow River?

The structure is 36 ft (10.9 m) long with a longest span of 17 ft (5.3 m) and a deck 32 ft wide.

Who owns Cth S over S Fk Willow River?

It is owned by the County Highway Agency.