US Bridges

Cth W over Manitowish River

Fair

Vilas County, Wisconsin · 0.6M N JCT Ush 51 · Structure no. B63001100000000

Built
1982
43 years old
Condition
Fair
inspected August 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
52 ft
1 main span
Daily traffic
1,695
2024 count
Owner
County
County Highway Agency

About this bridge

Cth W over Manitowish River is a prestressed concrete box beam or girders - multiple carrying Cth W over Manitowish River in Vilas County, Wisconsin. It was built in 1982, so it is 43 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 1,695 vehicles a day, projected to reach 1,730 by 2043. The structure is 52 ft (15.9 m) long and 35 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesCth W
CrossesManitowish River
Location0.6M N JCT Ush 51
RouteCounty Highway 0W
CountyVilas County
StateWisconsin
Coordinates46.13856, -89.88508
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.
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 protection9 ExcellentNo 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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61.2 US tons
Inventory rating32.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.9 m)
Longest span49 ft (15 m)
Deck width35 ft (10.8 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,695 (2024)
Projected traffic1,730 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed24.9 mi (40 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 W over Manitowish River built?

It was built in 1982, making it 43 years old in 2025.

What condition is Cth W over Manitowish 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 W over Manitowish River carry?

About 1,695 vehicles per day (2024 count).

How long is Cth W over Manitowish River?

The structure is 52 ft (15.9 m) long with a longest span of 49 ft (15 m) and a deck 35 ft wide.

Who owns Cth W over Manitowish River?

It is owned by the County Highway Agency.