US Bridges

Sth 27 over Eau Claire River

Good

Eau Claire County, Wisconsin · 0.8M N JCT Cth Gg · Structure no. B18019400000000

Built
2008
17 years old
Condition
Good
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
485 ft
3 main spans
Daily traffic
2,400
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 27 over Eau Claire River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 27 over Eau Claire River in Eau Claire County, Wisconsin. It was built in 2008, so it is 17 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 2,400 vehicles a day, roughly 15% of them trucks, projected to reach 2,880 by 2041. The structure is 485 ft (147.7 m) long and 39 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesSth 27
CrossesEau Claire River
Location0.8M N JCT Cth Gg
RouteState Highway 27
CountyEau Claire County
StateWisconsin
Coordinates44.75285, -91.14499
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating82.8 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length485 ft (147.7 m)
Longest span165 ft (50.2 m)
Deck width39 ft (12 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2021)
Projected traffic2,880 by 2041
Trucks15%
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

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 27 over Eau Claire River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Sth 27 over Eau Claire 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 July 2023.

How much traffic does Sth 27 over Eau Claire River carry?

About 2,400 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Sth 27 over Eau Claire River?

The structure is 485 ft (147.7 m) long with a longest span of 165 ft (50.2 m) and a deck 39 ft wide.

Who owns Sth 27 over Eau Claire River?

It is owned by the State Highway Agency.