US Bridges

Cth B over Flambeau River

Fair

Price County, Wisconsin · 1.3M N JCT Sth 70 · Structure no. B50001800000000

Built
1971
54 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
232 ft
3 main spans
Daily traffic
546
2023 count
Owner
County
County Highway Agency

About this bridge

Cth B over Flambeau River is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth B over Flambeau River in Price County, Wisconsin. It was built in 1971, so it is 54 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 5 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 546 vehicles a day, projected to reach 578 by 2043. The structure is 232 ft (70.6 m) long and 37 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesCth B
CrossesFlambeau River
Location1.3M N JCT Sth 70
RouteCounty Highway 0B
CountyPrice County
StateWisconsin
Coordinates45.9015, -90.47453
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length232 ft (70.6 m)
Longest span77 ft (23.5 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic546 (2023)
Projected traffic578 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 Flambeau River built?

It was built in 1971, making it 54 years old in 2025.

What condition is Cth B over Flambeau 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 June 2024.

How much traffic does Cth B over Flambeau River carry?

About 546 vehicles per day (2023 count).

How long is Cth B over Flambeau River?

The structure is 232 ft (70.6 m) long with a longest span of 77 ft (23.5 m) and a deck 37 ft wide.

Who owns Cth B over Flambeau River?

It is owned by the County Highway Agency.