US Bridges

Cth S over Sth 57

Good

Kewaunee County, Wisconsin · At Sth 57 · Structure no. B31008600000000

Built
2005
20 years old
Condition
Good
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
224 ft
2 main spans
Daily traffic
1,000
2022 count
Owner
State
State Highway Agency

About this bridge

Cth S over Sth 57 is a prestressed concrete continuous stringer/multi-beam or girder carrying Cth S over Sth 57 in Kewaunee County, Wisconsin. It was built in 2005, so it is 20 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 1,000 vehicles a day, roughly 11% of them trucks, projected to reach 950 by 2043. The structure is 224 ft (68.2 m) long and 44 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

CarriesCth S
CrossesSth 57
LocationAt Sth 57
RouteCounty Highway 0S
Coordinates44.63861, -87.7551
Functional classRural Local

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 inspectionAugust 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating73.9 US tons
Inventory rating46.4 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length224 ft (68.2 m)
Longest span120 ft (36.6 m)
Deck width44 ft (13.5 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,000 (2022)
Projected traffic950 by 2043
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed2.5 mi (4 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 S over Sth 57 built?

It was built in 2005, making it 20 years old in 2025.

What condition is Cth S over Sth 57 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 August 2024.

How much traffic does Cth S over Sth 57 carry?

About 1,000 vehicles per day (2022 count), of which roughly 11% are trucks.

How long is Cth S over Sth 57?

The structure is 224 ft (68.2 m) long with a longest span of 120 ft (36.6 m) and a deck 44 ft wide.

Who owns Cth S over Sth 57?

It is owned by the State Highway Agency.