US Bridges

Cth N over Lemonweir CR

Fair

Monroe County, Wisconsin · 1.3M S Sth 21 · Structure no. B41025300000000

Built
2004
21 years old
Condition
Fair
inspected July 2024
Type
Slab
Concrete Continuous
Length
151 ft
3 main spans
Daily traffic
305
2022 count
Owner
County
County Highway Agency

About this bridge

Cth N over Lemonweir CR is a concrete continuous slab carrying Cth N over Lemonweir CR in Monroe County, Wisconsin. It was built in 2004, so it is 21 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 305 vehicles a day, roughly 13% of them trucks, projected to reach 335 by 2043. The structure is 151 ft (45.9 m) long and 32 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

CarriesCth N
CrossesLemonweir CR
Location1.3M S Sth 21
RouteCounty Highway 0N
Coordinates44.01647, -90.40278
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length151 ft (45.9 m)
Longest span60 ft (18.3 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic305 (2022)
Projected traffic335 by 2043
Trucks13%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 CR built?

It was built in 2004, making it 21 years old in 2025.

What condition is Cth N over Lemonweir CR 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 July 2024.

How much traffic does Cth N over Lemonweir CR carry?

About 305 vehicles per day (2022 count), of which roughly 13% are trucks.

How long is Cth N over Lemonweir CR?

The structure is 151 ft (45.9 m) long with a longest span of 60 ft (18.3 m) and a deck 32 ft wide.

Who owns Cth N over Lemonweir CR?

It is owned by the County Highway Agency.