US Bridges

Cth M over Cth S

Good

Dane County, Wisconsin · At Cth S · Structure no. B13065500000000

Built
2014
11 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
218 ft
2 main spans
Daily traffic
16,100
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Cth M over Cth S is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth M over Cth S in Dane County, Wisconsin. It was built in 2014, so it is 11 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 16,100 vehicles a day, projected to reach 25,902 by 2043. The structure is 218 ft (66.4 m) long and 67 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesCth M
CrossesCth S
LocationAt Cth S
RouteCounty Highway 0M
CountyDane County
StateWisconsin
Coordinates43.06025, -89.52778
Functional classUrban Minor Arterial

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.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54.7 US tons
Inventory rating42.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length218 ft (66.4 m)
Longest span107 ft (32.6 m)
Deck width67 ft (20.4 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16,100 (2022)
Projected traffic25,902 by 2043
Trucks0%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo
Strategic Highway NetworkNon-Interstate STRAHNET route

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Cth M over Cth S built?

It was built in 2014, making it 11 years old in 2025.

What condition is Cth M over Cth S 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 September 2024.

How much traffic does Cth M over Cth S carry?

About 16,100 vehicles per day (2022 count).

How long is Cth M over Cth S?

The structure is 218 ft (66.4 m) long with a longest span of 107 ft (32.6 m) and a deck 67 ft wide.

Who owns Cth M over Cth S?

It is owned by the City or Municipal Highway Agency.