US Bridges

Cth C over Trout Brook

Fair

Ashland County, Wisconsin · 1.3M E JCT Sth 13 · Structure no. B02001800000000

Built
1976
49 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
48 ft
1 main span
Daily traffic
234
2024 count
Owner
County
County Highway Agency

About this bridge

Cth C over Trout Brook is a prestressed concrete stringer/multi-beam or girder carrying Cth C over Trout Brook in Ashland County, Wisconsin. It was built in 1976, so it is 49 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 234 vehicles a day, projected to reach 247 by 2043. The structure is 48 ft (14.5 m) long and 30 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth C
CrossesTrout Brook
Location1.3M E JCT Sth 13
RouteCounty Highway 0C
CountyAshland County
StateWisconsin
Coordinates46.40718, -90.77369
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure9 ExcellentNo problems noted.
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 geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length48 ft (14.5 m)
Longest span46 ft (14 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic234 (2024)
Projected traffic247 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 C over Trout Brook built?

It was built in 1976, making it 49 years old in 2025.

What condition is Cth C over Trout Brook 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 C over Trout Brook carry?

About 234 vehicles per day (2024 count).

How long is Cth C over Trout Brook?

The structure is 48 ft (14.5 m) long with a longest span of 46 ft (14 m) and a deck 30 ft wide.

Who owns Cth C over Trout Brook?

It is owned by the County Highway Agency.