US Bridges

Cth M over Lemonweir River

Good

Juneau County, Wisconsin · 0.4M N JCT Cth C · Structure no. B29011200000000

Built
1999
26 years old
Condition
Good
inspected July 2024
Type
Slab
Concrete
Length
135 ft
3 main spans
Daily traffic
341
2022 count
Owner
County
County Highway Agency

About this bridge

Cth M over Lemonweir River is a concrete slab carrying Cth M over Lemonweir River in Juneau County, Wisconsin. It was built in 1999, so it is 26 years old, younger than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 341 vehicles a day, projected to reach 375 by 2043. The structure is 135 ft (41 m) long and 30 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

Open in Google Maps
CarriesCth M
CrossesLemonweir River
Location0.4M N JCT Cth C
RouteCounty Highway 0M
CountyJuneau County
StateWisconsin
Coordinates43.9297, -90.17802
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating68.5 US tons
Inventory rating41.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length135 ft (41 m)
Longest span54 ft (16.6 m)
Deck width30 ft (9 m)
Roadway width28 ft (8.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic341 (2022)
Projected traffic375 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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 M over Lemonweir River built?

It was built in 1999, making it 26 years old in 2025.

What condition is Cth M over Lemonweir River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2024.

How much traffic does Cth M over Lemonweir River carry?

About 341 vehicles per day (2022 count).

How long is Cth M over Lemonweir River?

The structure is 135 ft (41 m) long with a longest span of 54 ft (16.6 m) and a deck 30 ft wide.

Who owns Cth M over Lemonweir River?

It is owned by the County Highway Agency.