US Bridges

Cth I over Apple River Overflow

Good

St. Croix County, Wisconsin · 3.2M N JCT Sth 35 · Structure no. P55091700000000

Built
1965
60 years old
Condition
Good
inspected October 2023
Type
Culvert
Concrete Continuous
Length
54 ft
4 main spans
Daily traffic
903
2022 count
Owner
County
County Highway Agency

About this bridge

Cth I over Apple River Overflow is a concrete continuous culvert carrying Cth I over Apple River Overflow in St. Croix County, Wisconsin. It was built in 1965, so it is 60 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 903 vehicles a day, projected to reach 993 by 2042. The structure is 54 ft (16.5 m) long. If it were closed, the detour would be 7.5 mi (12 km).

CarriesCth I
CrossesApple River Overflow
Location3.2M N JCT Sth 35
RouteCounty Highway 0I
Coordinates45.15744, -92.71214
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
Channel and channel protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckNot applicable
Main spans4
Design loadH 15
Structure length54 ft (16.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic903 (2022)
Projected traffic993 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 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 I over Apple River Overflow built?

It was built in 1965, making it 60 years old in 2025.

What condition is Cth I over Apple River Overflow 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 I over Apple River Overflow carry?

About 903 vehicles per day (2022 count).

How long is Cth I over Apple River Overflow?

The structure is 54 ft (16.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Cth I over Apple River Overflow?

It is owned by the County Highway Agency.