US Bridges

Sth 13 over Trask Creek

Fair

Douglas County, Wisconsin · 0.3M N JCT Cth H · Structure no. B16006100000000

Built
1986
39 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
680
2023 count
Owner
State
State Highway Agency

About this bridge

Sth 13 over Trask Creek is a concrete continuous culvert carrying Sth 13 over Trask Creek in Douglas County, Wisconsin. It was built in 1986, so it is 39 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 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 680 vehicles a day, roughly 12% of them trucks, projected to reach 720 by 2043. The structure is 24 ft (7.2 m) long. If it were closed, the detour would be 29.8 mi (48 km).

Location

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CarriesSth 13
CrossesTrask Creek
Location0.3M N JCT Cth H
RouteState Highway 13
CountyDouglas County
StateWisconsin
Coordinates46.67615, -91.58177
Functional classRural Minor Arterial

Condition and inspection

Fair

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length24 ft (7.2 m)
Longest span9 ft (2.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic680 (2023)
Projected traffic720 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed29.8 mi (48 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Sth 13 over Trask Creek built?

It was built in 1986, making it 39 years old in 2025.

What condition is Sth 13 over Trask Creek 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 Sth 13 over Trask Creek carry?

About 680 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is Sth 13 over Trask Creek?

The structure is 24 ft (7.2 m) long with a longest span of 9 ft (2.7 m).

Who owns Sth 13 over Trask Creek?

It is owned by the State Highway Agency.