US Bridges

Sth 71 over Br Baraboo River

Good

Monroe County, Wisconsin · 2.3M E JCT C · Structure no. B41028000000000

Built
2011
14 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
56 ft
1 main span
Daily traffic
2,400
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 71 over Br Baraboo River is a prestressed concrete stringer/multi-beam or girder carrying Sth 71 over Br Baraboo River in Monroe County, Wisconsin. It was built in 2011, so it is 14 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 2,400 vehicles a day, projected to reach 2,880 by 2041. The structure is 56 ft (17 m) long and 47 ft wide. If it were closed, the detour would be 23.6 mi (38 km).

CarriesSth 71
CrossesBr Baraboo River
Location2.3M E JCT C
RouteState Highway 71
Coordinates43.80512, -90.38947
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.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating52.5 US tons
Inventory rating40 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length56 ft (17 m)
Longest span52 ft (15.8 m)
Deck width47 ft (14.2 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,400 (2021)
Projected traffic2,880 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed23.6 mi (38 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 71 over Br Baraboo River built?

It was built in 2011, making it 14 years old in 2025.

What condition is Sth 71 over Br 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 September 2024.

How much traffic does Sth 71 over Br Baraboo River carry?

About 2,400 vehicles per day (2021 count).

How long is Sth 71 over Br Baraboo River?

The structure is 56 ft (17 m) long with a longest span of 52 ft (15.8 m) and a deck 47 ft wide.

Who owns Sth 71 over Br Baraboo River?

It is owned by the State Highway Agency.