US Bridges

Sth 81 over Beetown Branch

Fair

Grant County, Wisconsin · 5.8M E JCT Cth Y · Structure no. B22003600000000

Built
1954
71 years old, rebuilt 2011
Condition
Fair
inspected September 2023
Type
Culvert
Concrete Continuous
Length
24 ft
2 main spans
Daily traffic
840
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 81 over Beetown Branch is a concrete continuous culvert carrying Sth 81 over Beetown Branch in Grant County, Wisconsin. It was built in 1954 and reconstructed in 2011, so it is 71 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 840 vehicles a day, roughly 10% of them trucks, projected to reach 1,075 by 2042. The structure is 24 ft (7.3 m) long. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSth 81
CrossesBeetown Branch
Location5.8M E JCT Cth Y
RouteState Highway 81
CountyGrant County
StateWisconsin
Coordinates42.79439, -90.88631
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.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50.4 US tons
Inventory rating28.5 US tons

Structure

Structure typeCulvert
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length24 ft (7.3 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic840 (2022)
Projected traffic1,075 by 2042
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 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 81 over Beetown Branch built?

It was built in 1954, making it 71 years old in 2025. It was reconstructed in 2011.

What condition is Sth 81 over Beetown Branch 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 2023.

How much traffic does Sth 81 over Beetown Branch carry?

About 840 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Sth 81 over Beetown Branch?

The structure is 24 ft (7.3 m) long with a longest span of 10 ft (3 m).

Who owns Sth 81 over Beetown Branch?

It is owned by the State Highway Agency.