US Bridges

Sth 136-BROADWAY S over Baraboo River

Fair

Sauk County, Wisconsin · 0.1M E JCT Sth 154 · Structure no. B56000300000000

Built
1949
76 years old, rebuilt 1996
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
134 ft
2 main spans
Daily traffic
1,200
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 136-BROADWAY S over Baraboo River is a steel continuous stringer/multi-beam or girder carrying Sth 136-BROADWAY S over Baraboo River in Sauk County, Wisconsin. It was built in 1949 and reconstructed in 1996, so it is 76 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.

It carries about 1,200 vehicles a day, roughly 7% of them trucks, projected to reach 1,440 by 2041. The structure is 134 ft (40.8 m) long and 32 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesSth 136-BROADWAY S
CrossesBaraboo River
Location0.1M E JCT Sth 154
RouteState Highway 136
CountySauk County
StateWisconsin
Coordinates43.47793, -89.91569
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating32.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length134 ft (40.8 m)
Longest span66 ft (20.1 m)
Deck width32 ft (9.8 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,200 (2021)
Projected traffic1,440 by 2041
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed7.5 mi (12 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 136-BROADWAY S over Baraboo River built?

It was built in 1949, making it 76 years old in 2025. It was reconstructed in 1996.

What condition is Sth 136-BROADWAY S 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 May 2023.

How much traffic does Sth 136-BROADWAY S over Baraboo River carry?

About 1,200 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Sth 136-BROADWAY S over Baraboo River?

The structure is 134 ft (40.8 m) long with a longest span of 66 ft (20.1 m) and a deck 32 ft wide.

Who owns Sth 136-BROADWAY S over Baraboo River?

It is owned by the State Highway Agency.