US Bridges

Sth 40 over Couderay River

Good

Sawyer County, Wisconsin · 7.5M N JCT Sth 48 · Structure no. B57008900000000

Built
2017
8 years old
Condition
Good
inspected September 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
118 ft
1 main span
Daily traffic
420
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 40 over Couderay River is a prestressed concrete stringer/multi-beam or girder carrying Sth 40 over Couderay River in Sawyer County, Wisconsin. It was built in 2017, so it is 8 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 420 vehicles a day, projected to reach 504 by 2041. The structure is 118 ft (36 m) long and 38 ft wide. If it were closed, the detour would be 13.7 mi (22 km).

Location

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CarriesSth 40
CrossesCouderay River
Location7.5M N JCT Sth 48
RouteState Highway 40
CountySawyer County
StateWisconsin
Coordinates45.76548, -91.22182
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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length118 ft (36 m)
Longest span114 ft (34.7 m)
Deck width38 ft (11.7 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic420 (2021)
Projected traffic504 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed13.7 mi (22 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 40 over Couderay River built?

It was built in 2017, making it 8 years old in 2025.

What condition is Sth 40 over Couderay 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 September 2021.

How much traffic does Sth 40 over Couderay River carry?

About 420 vehicles per day (2021 count).

How long is Sth 40 over Couderay River?

The structure is 118 ft (36 m) long with a longest span of 114 ft (34.7 m) and a deck 38 ft wide.

Who owns Sth 40 over Couderay River?

It is owned by the State Highway Agency.