US Bridges

USH12 over Sth 59

Good

Walworth County, Wisconsin · 0.25 Miles West of Sth 59 · Structure no. B64005300000000

Built
2005
20 years old
Condition
Good
inspected April 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
163 ft
3 main spans
Daily traffic
6,200
2022 count
Owner
State
State Highway Agency

About this bridge

USH12 over Sth 59 is a prestressed concrete stringer/multi-beam or girder carrying USH12 over Sth 59 in Walworth 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 6,200 vehicles a day, projected to reach 7,440 by 2042. The structure is 163 ft (49.7 m) long and 66 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesUSH12
CrossesSth 59
Location0.25 Miles West of Sth 59
RouteU.S. Route 12
Coordinates42.82077, -88.74966
Functional classRural Principal Arterial - Other

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.
Substructure7 GoodSome minor problems.
Last inspectionApril 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.5 US tons
Inventory rating41.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length163 ft (49.7 m)
Longest span80 ft (24.4 m)
Deck width66 ft (20.1 m)
Roadway width63 ft (19.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,200 (2022)
Projected traffic7,440 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemYes

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 USH12 over Sth 59 built?

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

What condition is USH12 over Sth 59 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 April 2021.

How much traffic does USH12 over Sth 59 carry?

About 6,200 vehicles per day (2022 count).

How long is USH12 over Sth 59?

The structure is 163 ft (49.7 m) long with a longest span of 80 ft (24.4 m) and a deck 66 ft wide.

Who owns USH12 over Sth 59?

It is owned by the State Highway Agency.