US Bridges

Sth 56-STH 80-MAIN over Pine River

Fair

Richland County, Wisconsin · 3.1M E JCT Sth 80 to N · Structure no. B52010800000000

Built
1989
36 years old
Condition
Fair
inspected March 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
272 ft
3 main spans
Daily traffic
4,600
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 56-STH 80-MAIN over Pine River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 56-STH 80-MAIN over Pine River in Richland County, Wisconsin. It was built in 1989, so it is 36 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 4,600 vehicles a day, roughly 12% of them trucks, projected to reach 5,520 by 2042. The structure is 272 ft (83 m) long and 52 ft wide. If it were closed, the detour would be 53.4 mi (86 km).

Location

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CarriesSth 56-STH 80-MAIN
CrossesPine River
Location3.1M E JCT Sth 80 to N
RouteState Highway 56
CountyRichland County
StateWisconsin
Coordinates43.34611, -90.38655
Functional classUrban 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.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.5 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length272 ft (83 m)
Longest span90 ft (27.4 m)
Deck width52 ft (16 m)
Roadway width45 ft (13.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2022)
Projected traffic5,520 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed53.4 mi (86 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 56-STH 80-MAIN over Pine River built?

It was built in 1989, making it 36 years old in 2025.

What condition is Sth 56-STH 80-MAIN over Pine 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 March 2024.

How much traffic does Sth 56-STH 80-MAIN over Pine River carry?

About 4,600 vehicles per day (2022 count), of which roughly 12% are trucks.

How long is Sth 56-STH 80-MAIN over Pine River?

The structure is 272 ft (83 m) long with a longest span of 90 ft (27.4 m) and a deck 52 ft wide.

Who owns Sth 56-STH 80-MAIN over Pine River?

It is owned by the State Highway Agency.