US Bridges

Sth IRR (sth 47) over W Br Wolf River

Fair

Menominee County, Wisconsin · 1.9M N JCT Cth M · Structure no. B73010400000000

Built
1971
54 years old
Condition
Fair
inspected May 2023
Type
Culvert
Steel
Length
36 ft
3 main spans
Daily traffic
2,200
2022 count
Owner
State
State Highway Agency

About this bridge

Sth IRR (sth 47) over W Br Wolf River is a steel culvert carrying Sth IRR (sth 47) over W Br Wolf River in Menominee County, Wisconsin. It was built in 1971, so it is 54 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 2,200 vehicles a day, roughly 8% of them trucks, projected to reach 636 by 2042. The structure is 36 ft (11 m) long. If it were closed, the detour would be 56.5 mi (91 km).

CarriesSth IRR (sth 47)
CrossesW Br Wolf River
Location1.9M N JCT Cth M
RouteState Highway 47
Coordinates44.98337, -88.86232
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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.2 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckSteel plate
Main spans3
Design loadH 15
Structure length36 ft (11 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 traffic2,200 (2022)
Projected traffic636 by 2042
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed56.5 mi (91 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 IRR (sth 47) over W Br Wolf River built?

It was built in 1971, making it 54 years old in 2025.

What condition is Sth IRR (sth 47) over W Br Wolf 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 May 2023.

How much traffic does Sth IRR (sth 47) over W Br Wolf River carry?

About 2,200 vehicles per day (2022 count), of which roughly 8% are trucks.

How long is Sth IRR (sth 47) over W Br Wolf River?

The structure is 36 ft (11 m) long with a longest span of 9 ft (2.7 m).

Who owns Sth IRR (sth 47) over W Br Wolf River?

It is owned by the State Highway Agency.