US Bridges

Cth M over Pokegama Flowage

Fair

Barron County, Wisconsin · 2.4M N JCT Cth D · Structure no. B03008500000000

Built
1984
41 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
2,500
2021 count
Owner
County
County Highway Agency

About this bridge

Cth M over Pokegama Flowage is a concrete continuous slab carrying Cth M over Pokegama Flowage in Barron County, Wisconsin. It was built in 1984, so it is 41 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 2,500 vehicles a day, projected to reach 7,194 by 2043. The structure is 78 ft (23.7 m) long and 41 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

Open in Google Maps
CarriesCth M
CrossesPokegama Flowage
Location2.4M N JCT Cth D
RouteCounty Highway 0M
CountyBarron County
StateWisconsin
Coordinates45.35345, -91.64561
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 protection8 Very GoodNo problems noted.
Last inspectionJuly 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length78 ft (23.7 m)
Longest span32 ft (9.8 m)
Deck width41 ft (12.5 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2021)
Projected traffic7,194 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed7.5 mi (12 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 M over Pokegama Flowage built?

It was built in 1984, making it 41 years old in 2025.

What condition is Cth M over Pokegama Flowage 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 July 2024.

How much traffic does Cth M over Pokegama Flowage carry?

About 2,500 vehicles per day (2021 count).

How long is Cth M over Pokegama Flowage?

The structure is 78 ft (23.7 m) long with a longest span of 32 ft (9.8 m) and a deck 41 ft wide.

Who owns Cth M over Pokegama Flowage?

It is owned by the County Highway Agency.