US Bridges

Cth M over Milwaukee Road RR

Fair

La Crosse County, Wisconsin · 0.3M N JCT Cth C to E · Structure no. B32012400000000

Built
1990
35 years old
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
232 ft
4 main spans
Daily traffic
5,700
2024 count
Owner
County
County Highway Agency

About this bridge

Cth M over Milwaukee Road RR is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth M over Milwaukee Road RR in La Crosse County, Wisconsin. It was built in 1990, so it is 35 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 5,700 vehicles a day, roughly 12% of them trucks, projected to reach 4,974 by 2042. The structure is 232 ft (70.7 m) long and 46 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesCth M
CrossesMilwaukee Road RR
Location0.3M N JCT Cth C to E
RouteCounty Highway 0M
CountyLa Crosse County
StateWisconsin
Coordinates43.89158, -91.10085
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.
Superstructure8 Very GoodNo problems noted.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
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 rating73.9 US tons
Inventory rating39.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length232 ft (70.7 m)
Longest span75 ft (22.9 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,700 (2024)
Projected traffic4,974 by 2042
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad and waterway
Detour if closed3.7 mi (6 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 Milwaukee Road RR built?

It was built in 1990, making it 35 years old in 2025.

What condition is Cth M over Milwaukee Road RR 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 Milwaukee Road RR carry?

About 5,700 vehicles per day (2024 count), of which roughly 12% are trucks.

How long is Cth M over Milwaukee Road RR?

The structure is 232 ft (70.7 m) long with a longest span of 75 ft (22.9 m) and a deck 46 ft wide.

Who owns Cth M over Milwaukee Road RR?

It is owned by the County Highway Agency.