US Bridges

Sth 58 over Br Baraboo River

Fair

Sauk County, Wisconsin · 0.9M N JCT Sth 33 to W · Structure no. B56094300000000

Built
1932
93 years old
Condition
Fair
inspected April 2023
Type
Culvert
Concrete Continuous
Length
34 ft
2 main spans
Daily traffic
1,400
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 58 over Br Baraboo River is a concrete continuous culvert carrying Sth 58 over Br Baraboo River in Sauk County, Wisconsin. It was built in 1932, so it is 93 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 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 1,400 vehicles a day, roughly 12% of them trucks, projected to reach 1,680 by 2041. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesSth 58
CrossesBr Baraboo River
Location0.9M N JCT Sth 33 to W
RouteState Highway 58
CountySauk County
StateWisconsin
Coordinates43.60664, -90.12387
Functional classRural 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
Channel and channel protection7 GoodSome minor problems.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: 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 rating50.4 US tons
Inventory rating30.3 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length34 ft (10.5 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2021)
Projected traffic1,680 by 2041
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 58 over Br Baraboo River built?

It was built in 1932, making it 93 years old in 2025.

What condition is Sth 58 over Br 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 April 2023.

How much traffic does Sth 58 over Br Baraboo River carry?

About 1,400 vehicles per day (2021 count), of which roughly 12% are trucks.

How long is Sth 58 over Br Baraboo River?

The structure is 34 ft (10.5 m) long with a longest span of 12 ft (3.7 m).

Who owns Sth 58 over Br Baraboo River?

It is owned by the State Highway Agency.