US Bridges

Cth Dm over IH 39/90/94

Good

Dane County, Wisconsin · 0.8 MI W of JCT With Cth · Structure no. B13064800000000

Built
2017
8 years old
Condition
Good
inspected November 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
265 ft
2 main spans
Daily traffic
530
2022 count
Owner
State
State Highway Agency

About this bridge

Cth Dm over IH 39/90/94 is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth Dm over IH 39/90/94 in Dane County, Wisconsin. It was built in 2017, so it is 8 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 530 vehicles a day, projected to reach 636 by 2042. The structure is 265 ft (80.8 m) long and 34 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth Dm
CrossesIH 39/90/94
Location0.8 MI W of JCT With Cth
RouteCounty Highway 0DM
CountyDane County
StateWisconsin
Coordinates43.2757, -89.3992
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length265 ft (80.8 m)
Longest span131 ft (39.9 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2022)
Projected traffic636 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 Dm over IH 39/90/94 built?

It was built in 2017, making it 8 years old in 2025.

What condition is Cth Dm over IH 39/90/94 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 November 2023.

How much traffic does Cth Dm over IH 39/90/94 carry?

About 530 vehicles per day (2022 count).

How long is Cth Dm over IH 39/90/94?

The structure is 265 ft (80.8 m) long with a longest span of 131 ft (39.9 m) and a deck 34 ft wide.

Who owns Cth Dm over IH 39/90/94?

It is owned by the State Highway Agency.