US Bridges

Cth B over W Fk Chippewa River

Fair

Sawyer County, Wisconsin · 0.2M S JCT Cth S · Structure no. B57001700000000

Built
1970
55 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
161 ft
3 main spans
Daily traffic
918
2024 count
Owner
County
County Highway Agency

About this bridge

Cth B over W Fk Chippewa River is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth B over W Fk Chippewa River in Sawyer County, Wisconsin. It was built in 1970, so it is 55 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 918 vehicles a day, projected to reach 990 by 2043. The structure is 161 ft (49.1 m) long and 37 ft wide. If it were closed, the detour would be 47.8 mi (77 km).

Location

Open in Google Maps
CarriesCth B
CrossesW Fk Chippewa River
Location0.2M S JCT Cth S
RouteCounty Highway 0B
CountySawyer County
StateWisconsin
Coordinates45.96502, -91.12518
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating64.8 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length161 ft (49.1 m)
Longest span53 ft (16.3 m)
Deck width37 ft (11.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic918 (2024)
Projected traffic990 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed47.8 mi (77 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 B over W Fk Chippewa River built?

It was built in 1970, making it 55 years old in 2025.

What condition is Cth B over W Fk Chippewa River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2024.

How much traffic does Cth B over W Fk Chippewa River carry?

About 918 vehicles per day (2024 count).

How long is Cth B over W Fk Chippewa River?

The structure is 161 ft (49.1 m) long with a longest span of 53 ft (16.3 m) and a deck 37 ft wide.

Who owns Cth B over W Fk Chippewa River?

It is owned by the County Highway Agency.