US Bridges

Sth 47 NB over Sth 29

Fair

Shawano County, Wisconsin · 5.5M N JCT Cth S · Structure no. B58006100000000

Built
1996
29 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
218 ft
2 main spans
Daily traffic
5,000
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 47 NB over Sth 29 is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 47 NB over Sth 29 in Shawano County, Wisconsin. It was built in 1996, so it is 29 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 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 5,000 vehicles a day, projected to reach 9,600 by 2042. The structure is 218 ft (66.3 m) long and 46 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

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CarriesSth 47 NB
CrossesSth 29
Location5.5M N JCT Cth S
RouteState Highway 47
CountyShawano County
StateWisconsin
Coordinates44.7275, -88.44582
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length218 ft (66.3 m)
Longest span107 ft (32.6 m)
Deck width46 ft (14.1 m)
Roadway width37 ft (11.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,000 (2022)
Projected traffic9,600 by 2042
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed11.8 mi (19 km)
TollOn a free road
National Highway SystemYes

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 47 NB over Sth 29 built?

It was built in 1996, making it 29 years old in 2025.

What condition is Sth 47 NB over Sth 29 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 Sth 47 NB over Sth 29 carry?

About 5,000 vehicles per day (2022 count).

How long is Sth 47 NB over Sth 29?

The structure is 218 ft (66.3 m) long with a longest span of 107 ft (32.6 m) and a deck 46 ft wide.

Who owns Sth 47 NB over Sth 29?

It is owned by the State Highway Agency.