US Bridges

Sth 13 over Whittlesey Creek

Fair

Bayfield County, Wisconsin · 0.5M N JCT Ush 2 to W · Structure no. B04007700000000

Built
1954
71 years old, rebuilt 1998
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
42 ft
1 main span
Daily traffic
7,500
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 13 over Whittlesey Creek is a steel stringer/multi-beam or girder carrying Sth 13 over Whittlesey Creek in Bayfield County, Wisconsin. It was built in 1954 and reconstructed in 1998, so it is 71 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 7,500 vehicles a day, projected to reach 9,000 by 2043. The structure is 42 ft (12.8 m) long and 36 ft wide. If it were closed, the detour would be 59.7 mi (96 km).

Location

Open in Google Maps
CarriesSth 13
CrossesWhittlesey Creek
Location0.5M N JCT Ush 2 to W
RouteState Highway 13
CountyBayfield County
StateWisconsin
Coordinates46.59488, -90.95499
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 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
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length42 ft (12.8 m)
Longest span42 ft (12.8 m)
Deck width36 ft (11.1 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,500 (2022)
Projected traffic9,000 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 Whittlesey Creek built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 1998.

What condition is Sth 13 over Whittlesey 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 May 2024.

How much traffic does Sth 13 over Whittlesey Creek carry?

About 7,500 vehicles per day (2022 count).

How long is Sth 13 over Whittlesey Creek?

The structure is 42 ft (12.8 m) long with a longest span of 42 ft (12.8 m) and a deck 36 ft wide.

Who owns Sth 13 over Whittlesey Creek?

It is owned by the State Highway Agency.