US Bridges

Cth W over N Fk Flambeau River

Poor

Sawyer County, Wisconsin · 2.3M W JCT Cth M to S · Structure no. B57003100000000

Built
1983
42 years old
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
294 ft
4 main spans
Daily traffic
397
2024 count
Owner
County
County Highway Agency

About this bridge

Cth W over N Fk Flambeau River is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth W over N Fk Flambeau River in Sawyer County, Wisconsin. It was built in 1983, so it is 42 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 397 vehicles a day, projected to reach 416 by 2043. The structure is 294 ft (89.7 m) long and 30 ft wide. If it were closed, the detour would be 38.5 mi (62 km).

CarriesCth W
CrossesN Fk Flambeau River
Location2.3M W JCT Cth M to S
RouteCounty Highway 0W
Coordinates45.768, -90.76053
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.2 US tons
Inventory rating32.2 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length294 ft (89.7 m)
Longest span73 ft (22.3 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic397 (2024)
Projected traffic416 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed38.5 mi (62 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Cth W over N Fk Flambeau River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Cth W over N Fk Flambeau River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does Cth W over N Fk Flambeau River carry?

About 397 vehicles per day (2024 count).

How long is Cth W over N Fk Flambeau River?

The structure is 294 ft (89.7 m) long with a longest span of 73 ft (22.3 m) and a deck 30 ft wide.

Who owns Cth W over N Fk Flambeau River?

It is owned by the County Highway Agency.