US Bridges

Cth S & P over Sugar River

Good

Dane County, Wisconsin · 1.0M S JCT Cth J · Structure no. B13060400000000

Built
2007
18 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete
Length
43 ft
1 main span
Daily traffic
6,886
2022 count
Owner
County
County Highway Agency

About this bridge

Cth S & P over Sugar River is a concrete slab carrying Cth S & P over Sugar River in Dane County, Wisconsin. It was built in 2007, so it is 18 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 6,886 vehicles a day, projected to reach 7,574 by 2043. The structure is 43 ft (13.1 m) long and 53 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesCth S & P
CrossesSugar River
Location1.0M S JCT Cth J
RouteCounty Highway 0S&P
Coordinates43.0349, -89.66572
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88.2 US tons
Inventory rating51.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length43 ft (13.1 m)
Longest span40 ft (12.2 m)
Deck width53 ft (16.3 m)
Roadway width51 ft (15.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,886 (2022)
Projected traffic7,574 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 S & P over Sugar River built?

It was built in 2007, making it 18 years old in 2025.

What condition is Cth S & P over Sugar 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 September 2024.

How much traffic does Cth S & P over Sugar River carry?

About 6,886 vehicles per day (2022 count).

How long is Cth S & P over Sugar River?

The structure is 43 ft (13.1 m) long with a longest span of 40 ft (12.2 m) and a deck 53 ft wide.

Who owns Cth S & P over Sugar River?

It is owned by the County Highway Agency.