US Bridges

Cth H over Trout River

Fair

Vilas County, Wisconsin · 2.6M S of USH51 · Structure no. B63001900000000

Built
1993
32 years old
Condition
Fair
inspected August 2024
Type
Slab
Wood or Timber
Length
32 ft
1 main span
Daily traffic
707
2024 count
Owner
County
County Highway Agency

About this bridge

Cth H over Trout River is a wood or timber slab carrying Cth H over Trout River in Vilas County, Wisconsin. It was built in 1993, so it is 32 years old, younger 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 707 vehicles a day, roughly 9% of them trucks, projected to reach 753 by 2043. The structure is 32 ft (9.8 m) long and 30 ft wide. If it were closed, the detour would be 31.7 mi (51 km).

CarriesCth H
CrossesTrout River
Location2.6M S of USH51
RouteCounty Highway 0H
Coordinates46.03397, -89.77228
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
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 rating77.4 US tons
Inventory rating53.6 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans1
Design loadHS 20
Structure length32 ft (9.8 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic707 (2024)
Projected traffic753 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed31.7 mi (51 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 H over Trout River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Cth H over Trout 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 H over Trout River carry?

About 707 vehicles per day (2024 count), of which roughly 9% are trucks.

How long is Cth H over Trout River?

The structure is 32 ft (9.8 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns Cth H over Trout River?

It is owned by the County Highway Agency.