US Bridges

Sth 80-STH 82 over Baraboo River

Good

Juneau County, Wisconsin · 1.7M N JCT Sth 33 to E · Structure no. B29010200000000

Built
1997
28 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
84 ft
2 main spans
Daily traffic
3,300
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 80-STH 82 over Baraboo River is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 80-STH 82 over Baraboo River in Juneau County, Wisconsin. It was built in 1997, so it is 28 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,300 vehicles a day, roughly 6% of them trucks, projected to reach 4,920 by 2042. The structure is 84 ft (25.5 m) long and 38 ft wide. If it were closed, the detour would be 38.5 mi (62 km).

Location

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CarriesSth 80-STH 82
CrossesBaraboo River
Location1.7M N JCT Sth 33 to E
RouteState Highway 80
CountyJuneau County
StateWisconsin
Coordinates43.70576, -90.26621
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry5: 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 rating61.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length84 ft (25.5 m)
Longest span40 ft (12.2 m)
Deck width38 ft (11.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,300 (2022)
Projected traffic4,920 by 2042
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed38.5 mi (62 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 80-STH 82 over Baraboo River built?

It was built in 1997, making it 28 years old in 2025.

What condition is Sth 80-STH 82 over Baraboo River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in May 2023.

How much traffic does Sth 80-STH 82 over Baraboo River carry?

About 3,300 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is Sth 80-STH 82 over Baraboo River?

The structure is 84 ft (25.5 m) long with a longest span of 40 ft (12.2 m) and a deck 38 ft wide.

Who owns Sth 80-STH 82 over Baraboo River?

It is owned by the State Highway Agency.