US Bridges

Sth 35 over Sunny Lawn Creek

Good

St. Croix County, Wisconsin · 4.6M N JCT Sth 65 · Structure no. B55016400000000

Built
1999
26 years old
Condition
Good
inspected September 2024
Type
Culvert
Concrete Continuous
Length
23 ft
2 main spans
Daily traffic
19,500
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 35 over Sunny Lawn Creek is a concrete continuous culvert carrying Sth 35 over Sunny Lawn Creek in St. Croix County, Wisconsin. It was built in 1999, so it is 26 years old, younger 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 19,500 vehicles a day, projected to reach 23,400 by 2041. The structure is 23 ft (7.1 m) long. If it were closed, the detour would be 20.5 mi (33 km).

CarriesSth 35
CrossesSunny Lawn Creek
Location4.6M N JCT Sth 65
RouteState Highway 35
Coordinates44.93065, -92.68347
Functional classRural Principal Arterial - Other

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length23 ft (7.1 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,500 (2021)
Projected traffic23,400 by 2041
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed20.5 mi (33 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 35 over Sunny Lawn Creek built?

It was built in 1999, making it 26 years old in 2025.

What condition is Sth 35 over Sunny Lawn Creek 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 September 2024.

How much traffic does Sth 35 over Sunny Lawn Creek carry?

About 19,500 vehicles per day (2021 count).

How long is Sth 35 over Sunny Lawn Creek?

The structure is 23 ft (7.1 m) long with a longest span of 9 ft (2.7 m).

Who owns Sth 35 over Sunny Lawn Creek?

It is owned by the State Highway Agency.