US Bridges

Cth M over Larson Coulee Creek

FairPosted for load

La Crosse County, Wisconsin · 1.7M N JCT Sth 16 · Structure no. B32001900000000

Built
1957
68 years old
Condition
Fair
inspected March 2023
Type
Slab
Concrete
Length
34 ft
1 main span
Daily traffic
1,800
2022 count
Owner
County
County Highway Agency

About this bridge

Cth M over Larson Coulee Creek is a concrete slab carrying Cth M over Larson Coulee Creek in La Crosse County, Wisconsin. It was built in 1957, so it is 68 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. Its operating status is: posted for other load-capacity restriction.

It carries about 1,800 vehicles a day, projected to reach 2,160 by 2042. The structure is 34 ft (10.5 m) long and 28 ft wide. If it were closed, the detour would be 17.4 mi (28 km).

Location

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CarriesCth M
CrossesLarson Coulee Creek
Location1.7M N JCT Sth 16
RouteCounty Highway 0M
CountyLa Crosse County
StateWisconsin
Coordinates43.92322, -91.10662
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating41.4 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length34 ft (10.5 m)
Longest span32 ft (9.8 m)
Deck width28 ft (8.5 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,800 (2022)
Projected traffic2,160 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed17.4 mi (28 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 Larson Coulee Creek built?

It was built in 1957, making it 68 years old in 2025.

What condition is Cth M over Larson Coulee Creek 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 March 2023.

How much traffic does Cth M over Larson Coulee Creek carry?

About 1,800 vehicles per day (2022 count).

How long is Cth M over Larson Coulee Creek?

The structure is 34 ft (10.5 m) long with a longest span of 32 ft (9.8 m) and a deck 28 ft wide.

Who owns Cth M over Larson Coulee Creek?

It is owned by the County Highway Agency.