US Bridges

Lrd Hahn ST over Baraboo River

Fair

Juneau County, Wisconsin · 0.6M S JCT Sth 33 · Structure no. B29008400000000

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
79 ft
1 main span
Daily traffic
179
2022 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd Hahn ST over Baraboo River is a prestressed concrete box beam or girders - multiple carrying Lrd Hahn ST over Baraboo River in Juneau County, Wisconsin. It was built in 1988, so it is 37 years old, younger 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 179 vehicles a day, projected to reach 196 by 2042. The structure is 79 ft (24.1 m) long and 25 ft wide. If it were closed, the detour would be 7.5 mi (12 km).

Location

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CarriesLrd Hahn ST
CrossesBaraboo River
Location0.6M S JCT Sth 33
RouteCity Street 0
CountyJuneau County
StateWisconsin
Coordinates43.67675, -90.2619
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 alignment6: Equal to present minimum criteria
Operating rating66.6 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length79 ft (24.1 m)
Longest span75 ft (22.9 m)
Deck width25 ft (7.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic179 (2022)
Projected traffic196 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed7.5 mi (12 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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 Hahn ST over Baraboo River built?

It was built in 1988, making it 37 years old in 2025.

What condition is Lrd Hahn 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 May 2023.

How much traffic does Lrd Hahn ST over Baraboo River carry?

About 179 vehicles per day (2022 count).

How long is Lrd Hahn ST over Baraboo River?

The structure is 79 ft (24.1 m) long with a longest span of 75 ft (22.9 m) and a deck 25 ft wide.

Who owns Lrd Hahn ST over Baraboo River?

It is owned by the Town or Township Highway Agency.