US Bridges

Cth I over Sth 35/64

Fair

St. Croix County, Wisconsin · At 35/64 · Structure no. B55018000000000

Built
2004
21 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
208 ft
2 main spans
Daily traffic
3,600
2022 count
Owner
State
State Highway Agency

About this bridge

Cth I over Sth 35/64 is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth I over Sth 35/64 in St. Croix County, Wisconsin. It was built in 2004, so it is 21 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 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 3,600 vehicles a day, projected to reach 4,320 by 2043. The structure is 208 ft (63.3 m) long and 48 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesCth I
CrossesSth 35/64
LocationAt 35/64
RouteCounty Highway 0I
CountySt. Croix County
StateWisconsin
Coordinates45.10855, -92.67512
Functional classRural Minor Arterial

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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating86.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length208 ft (63.3 m)
Longest span102 ft (31.1 m)
Deck width48 ft (14.6 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2022)
Projected traffic4,320 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth I over Sth 35/64 built?

It was built in 2004, making it 21 years old in 2025.

What condition is Cth I over Sth 35/64 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 September 2024.

How much traffic does Cth I over Sth 35/64 carry?

About 3,600 vehicles per day (2022 count).

How long is Cth I over Sth 35/64?

The structure is 208 ft (63.3 m) long with a longest span of 102 ft (31.1 m) and a deck 48 ft wide.

Who owns Cth I over Sth 35/64?

It is owned by the State Highway Agency.