US Bridges

Lrd Walnut St/Muse over Baraboo River

FairPosted for load

Sauk County, Wisconsin · 0.2M W JCT Cth Pf · Structure no. B56006100000000

Built
1978
47 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
128 ft
2 main spans
Daily traffic
287
2024 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Walnut St/Muse over Baraboo River is a prestressed concrete continuous stringer/multi-beam or girder carrying Lrd Walnut St/Muse over Baraboo River in Sauk County, Wisconsin. It was built in 1978, so it is 47 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. Its operating status is: posted for other load-capacity restriction.

It carries about 287 vehicles a day, projected to reach 315 by 2043. The structure is 128 ft (39 m) long and 28 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLrd Walnut St/Muse
CrossesBaraboo River
Location0.2M W JCT Cth Pf
RouteCity Street 0
CountySauk County
StateWisconsin
Coordinates43.46024, -89.87017
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to 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 rating59.4 US tons
Inventory rating28.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length128 ft (39 m)
Longest span63 ft (19.2 m)
Deck width28 ft (8.5 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic287 (2024)
Projected traffic315 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Lrd Walnut St/Muse over Baraboo River built?

It was built in 1978, making it 47 years old in 2025.

What condition is Lrd Walnut St/Muse over Baraboo 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 September 2024.

How much traffic does Lrd Walnut St/Muse over Baraboo River carry?

About 287 vehicles per day (2024 count).

How long is Lrd Walnut St/Muse over Baraboo River?

The structure is 128 ft (39 m) long with a longest span of 63 ft (19.2 m) and a deck 28 ft wide.

Who owns Lrd Walnut St/Muse over Baraboo River?

It is owned by the City or Municipal Highway Agency.