US Bridges

Cth U over W Br Sugar River

FairPosted for load

Dane County, Wisconsin · 1.3M N JCT Cth a · Structure no. B13019800000000

Built
1961
64 years old
Condition
Fair
inspected October 2024
Type
Slab
Concrete Continuous
Length
43 ft
2 main spans
Daily traffic
500
2022 count
Owner
County
County Highway Agency

About this bridge

Cth U over W Br Sugar River is a concrete continuous slab carrying Cth U over W Br Sugar River in Dane County, Wisconsin. It was built in 1961, so it is 64 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 5 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 500 vehicles a day, projected to reach 550 by 2043. The structure is 43 ft (13.2 m) long and 32 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesCth U
CrossesW Br Sugar River
Location1.3M N JCT Cth a
RouteCounty Highway 0U
CountyDane County
StateWisconsin
Coordinates42.91989, -89.64719
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating39.6 US tons
Inventory rating23.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length43 ft (13.2 m)
Longest span21 ft (6.4 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2022)
Projected traffic550 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 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 U over W Br Sugar River built?

It was built in 1961, making it 64 years old in 2025.

What condition is Cth U over W Br Sugar River 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 October 2024.

How much traffic does Cth U over W Br Sugar River carry?

About 500 vehicles per day (2022 count).

How long is Cth U over W Br Sugar River?

The structure is 43 ft (13.2 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.

Who owns Cth U over W Br Sugar River?

It is owned by the County Highway Agency.