US Bridges

Cth N over Lemonweir River Slough

Fair

Juneau County, Wisconsin · 0.1M E JCT Ush 12 · Structure no. B29008200000000

Built
1988
37 years old
Condition
Fair
inspected May 2023
Type
Slab
Concrete
Length
33 ft
1 main span
Daily traffic
343
2022 count
Owner
County
County Highway Agency

About this bridge

Cth N over Lemonweir River Slough is a concrete slab carrying Cth N over Lemonweir River Slough 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 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 343 vehicles a day, projected to reach 377 by 2042. The structure is 33 ft (10 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCth N
CrossesLemonweir River Slough
Location0.1M E JCT Ush 12
RouteCounty Highway 0N
CountyJuneau County
StateWisconsin
Coordinates43.78694, -90.06322
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length33 ft (10 m)
Longest span31 ft (9.4 m)
Deck width30 ft (9.1 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic343 (2022)
Projected traffic377 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Cth N over Lemonweir River Slough built?

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

What condition is Cth N over Lemonweir River Slough 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 Cth N over Lemonweir River Slough carry?

About 343 vehicles per day (2022 count).

How long is Cth N over Lemonweir River Slough?

The structure is 33 ft (10 m) long with a longest span of 31 ft (9.4 m) and a deck 30 ft wide.

Who owns Cth N over Lemonweir River Slough?

It is owned by the County Highway Agency.