US Bridges

Cth Dm over Br Yahara River

Good

Dane County, Wisconsin · 1.7M W JCT Ush 51 · Structure no. B13089600000000

Built
2020
5 years old
Condition
Good
inspected October 2024
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
22 ft
1 main span
Daily traffic
600
2021 count
Owner
County
County Highway Agency

About this bridge

Cth Dm over Br Yahara River is a aluminum, wrought iron, or cast iron culvert carrying Cth Dm over Br Yahara River in Dane County, Wisconsin. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 600 vehicles a day, projected to reach 720 by 2041. The structure is 22 ft (6.8 m) long. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCth Dm
CrossesBr Yahara River
Location1.7M W JCT Ush 51
RouteCounty Highway 0DM
Coordinates43.28022, -89.35519
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.6 US tons
Inventory rating60.7 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckAluminum
Main spans1
Design loadHL 93
Structure length22 ft (6.8 m)
Longest span22 ft (6.8 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic600 (2021)
Projected traffic720 by 2041
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 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 Dm over Br Yahara River built?

It was built in 2020, making it 5 years old in 2025.

What condition is Cth Dm over Br Yahara 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 October 2024.

How much traffic does Cth Dm over Br Yahara River carry?

About 600 vehicles per day (2021 count).

How long is Cth Dm over Br Yahara River?

The structure is 22 ft (6.8 m) long with a longest span of 22 ft (6.8 m).

Who owns Cth Dm over Br Yahara River?

It is owned by the County Highway Agency.