US Bridges

Sth 58-CENTER ST over Baraboo River

Fair

Sauk County, Wisconsin · 4.2M N JCT Cth G to E · Structure no. B56079600000000

Built
1941
84 years old, rebuilt 1990
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
120 ft
2 main spans
Daily traffic
1,400
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 58-CENTER ST over Baraboo River is a steel stringer/multi-beam or girder carrying Sth 58-CENTER ST over Baraboo River in Sauk County, Wisconsin. It was built in 1941 and reconstructed in 1990, so it is 84 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 9% of them trucks, projected to reach 1,680 by 2041. The structure is 120 ft (36.6 m) long and 38 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesSth 58-CENTER ST
CrossesBaraboo River
Location4.2M N JCT Cth G to E
RouteState Highway 58
CountySauk County
StateWisconsin
Coordinates43.58208, -90.13349
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 inspectionJuly 2024
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
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating52.2 US tons
Inventory rating30.3 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length120 ft (36.6 m)
Longest span57 ft (17.5 m)
Deck width38 ft (11.5 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,400 (2021)
Projected traffic1,680 by 2041
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed6.8 mi (11 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-CENTER ST over Baraboo River built?

It was built in 1941, making it 84 years old in 2025. It was reconstructed in 1990.

What condition is Sth 58-CENTER ST 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 July 2024.

How much traffic does Sth 58-CENTER ST over Baraboo River carry?

About 1,400 vehicles per day (2021 count), of which roughly 9% are trucks.

How long is Sth 58-CENTER ST over Baraboo River?

The structure is 120 ft (36.6 m) long with a longest span of 57 ft (17.5 m) and a deck 38 ft wide.

Who owns Sth 58-CENTER ST over Baraboo River?

It is owned by the State Highway Agency.