US Bridges

Cth G over Flambeau River

Fair

Rusk County, Wisconsin · 0.5M N JCT Cth P--7 · Structure no. B54002300000000

Built
1979
46 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
243 ft
3 main spans
Daily traffic
3,105
2024 count
Owner
County
County Highway Agency

About this bridge

Cth G over Flambeau River is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth G over Flambeau River in Rusk County, Wisconsin. It was built in 1979, so it is 46 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 3,105 vehicles a day, projected to reach 3,301 by 2043. The structure is 243 ft (74 m) long and 39 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCth G
CrossesFlambeau River
Location0.5M N JCT Cth P--7
RouteCounty Highway 0G
Coordinates45.45861, -91.08417
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.
Superstructure9 ExcellentNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating35.7 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length243 ft (74 m)
Longest span81 ft (24.6 m)
Deck width39 ft (11.9 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,105 (2024)
Projected traffic3,301 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed5 mi (8 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 G over Flambeau River built?

It was built in 1979, making it 46 years old in 2025.

What condition is Cth G 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 April 2024.

How much traffic does Cth G over Flambeau River carry?

About 3,105 vehicles per day (2024 count).

How long is Cth G over Flambeau River?

The structure is 243 ft (74 m) long with a longest span of 81 ft (24.6 m) and a deck 39 ft wide.

Who owns Cth G over Flambeau River?

It is owned by the County Highway Agency.