US Bridges

Sth 25 over Hay River

Good

Dunn County, Wisconsin · 0.3M N JCT Sth 170 · Structure no. B17022500000000

Built
2019
6 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
243 ft
4 main spans
Daily traffic
3,600
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 25 over Hay River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 25 over Hay River in Dunn County, Wisconsin. It was built in 2019, so it is 6 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 3,600 vehicles a day, projected to reach 4,400 by 2041. The structure is 243 ft (74.2 m) long and 47 ft wide. If it were closed, the detour would be 29.8 mi (48 km).

Location

Open in Google Maps
CarriesSth 25
CrossesHay River
Location0.3M N JCT Sth 170
RouteState Highway 25
CountyDunn County
StateWisconsin
Coordinates45.04872, -91.90595
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
Deck7 GoodSome minor problems.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating47.2 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length243 ft (74.2 m)
Longest span60 ft (18.3 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,600 (2022)
Projected traffic4,400 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 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 25 over Hay River built?

It was built in 2019, making it 6 years old in 2025.

What condition is Sth 25 over Hay 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 August 2024.

How much traffic does Sth 25 over Hay River carry?

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

How long is Sth 25 over Hay River?

The structure is 243 ft (74.2 m) long with a longest span of 60 ft (18.3 m) and a deck 47 ft wide.

Who owns Sth 25 over Hay River?

It is owned by the State Highway Agency.