US Bridges

Sth 13 over Little Whittlesey Crk

Fair

Bayfield County, Wisconsin · 0.8M N JCT Ush 2 to W · Structure no. B04003700000000

Built
1981
44 years old
Condition
Fair
inspected May 2024
Type
Culvert
Steel
Length
24 ft
3 main spans
Daily traffic
7,100
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 13 over Little Whittlesey Crk is a steel culvert carrying Sth 13 over Little Whittlesey Crk in Bayfield County, Wisconsin. It was built in 1981, so it is 44 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 7,100 vehicles a day, projected to reach 7,100 by 2043. The structure is 24 ft (7.4 m) long. If it were closed, the detour would be 59.7 mi (96 km).

Location

Open in Google Maps
CarriesSth 13
CrossesLittle Whittlesey Crk
Location0.8M N JCT Ush 2 to W
RouteState Highway 13
CountyBayfield County
StateWisconsin
Coordinates46.59773, -90.9549
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 inspectionMay 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
MaterialSteel
DeckCorrugated steel
Main spans3
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span6 ft (1.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,100 (2022)
Projected traffic7,100 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed59.7 mi (96 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 Little Whittlesey Crk built?

It was built in 1981, making it 44 years old in 2025.

What condition is Sth 13 over Little Whittlesey Crk 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 May 2024.

How much traffic does Sth 13 over Little Whittlesey Crk carry?

About 7,100 vehicles per day (2022 count).

How long is Sth 13 over Little Whittlesey Crk?

The structure is 24 ft (7.4 m) long with a longest span of 6 ft (1.9 m).

Who owns Sth 13 over Little Whittlesey Crk?

It is owned by the State Highway Agency.