US Bridges

Lrd 70th Ave over Kinnickinnic River

Good

St. Croix County, Wisconsin · 3.0M E JCT Sth 65 · Structure no. P55014200000000

Built
1977
48 years old
Condition
Good
inspected November 2024
Type
Culvert
Steel
Length
22 ft
1 main span
Daily traffic
250
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd 70th Ave over Kinnickinnic River is a steel culvert carrying Lrd 70th Ave over Kinnickinnic River in St. Croix County, Wisconsin. It was built in 1977, so it is 48 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 250 vehicles a day, projected to reach 178 by 2043. The structure is 22 ft (6.7 m) long. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesLrd 70th Ave
CrossesKinnickinnic River
Location3.0M E JCT Sth 65
RouteCity Street 0
CountySt. Croix County
StateWisconsin
Coordinates44.96362, -92.49875
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckSteel plate
Main spans1
Design loadH 15
Structure length22 ft (6.7 m)
Longest span20 ft (6.2 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2022)
Projected traffic178 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Lrd 70th Ave over Kinnickinnic River built?

It was built in 1977, making it 48 years old in 2025.

What condition is Lrd 70th Ave over Kinnickinnic 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 November 2024.

How much traffic does Lrd 70th Ave over Kinnickinnic River carry?

About 250 vehicles per day (2022 count).

How long is Lrd 70th Ave over Kinnickinnic River?

The structure is 22 ft (6.7 m) long with a longest span of 20 ft (6.2 m).

Who owns Lrd 70th Ave over Kinnickinnic River?

It is owned by the Town or Township Highway Agency.