US Bridges

Ush 12-STH 16 over Little Lemonweir River

Fair

Juneau County, Wisconsin · 2.5M E JCT Cth C · Structure no. B29097800000000

Built
1931
94 years old, rebuilt 1994
Condition
Fair
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
1 main span
Daily traffic
2,500
2022 count
Owner
State
State Highway Agency

About this bridge

Ush 12-STH 16 over Little Lemonweir River is a steel stringer/multi-beam or girder carrying Ush 12-STH 16 over Little Lemonweir River in Juneau County, Wisconsin. It was built in 1931 and reconstructed in 1994, so it is 94 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 2,500 vehicles a day, roughly 4% of them trucks, projected to reach 6,230 by 2042. The structure is 65 ft (19.7 m) long and 40 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesUsh 12-STH 16
CrossesLittle Lemonweir River
Location2.5M E JCT Cth C
RouteU.S. Route 12
CountyJuneau County
StateWisconsin
Coordinates43.89966, -90.22443
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
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 alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length65 ft (19.7 m)
Longest span61 ft (18.7 m)
Deck width40 ft (12.2 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,500 (2022)
Projected traffic6,230 by 2042
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 Ush 12-STH 16 over Little Lemonweir River built?

It was built in 1931, making it 94 years old in 2025. It was reconstructed in 1994.

What condition is Ush 12-STH 16 over Little Lemonweir 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 Ush 12-STH 16 over Little Lemonweir River carry?

About 2,500 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Ush 12-STH 16 over Little Lemonweir River?

The structure is 65 ft (19.7 m) long with a longest span of 61 ft (18.7 m) and a deck 40 ft wide.

Who owns Ush 12-STH 16 over Little Lemonweir River?

It is owned by the State Highway Agency.