US Bridges

Sth 59 EB over Wisconsin & Southern RR

Good

Rock County, Wisconsin · At Wsor · Structure no. B53027200000000

Built
2009
16 years old
Condition
Good
inspected August 2021
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
131 ft
1 main span
Daily traffic
4,700
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 59 EB over Wisconsin & Southern RR is a prestressed concrete stringer/multi-beam or girder carrying Sth 59 EB over Wisconsin & Southern RR in Rock County, Wisconsin. It was built in 2009, so it is 16 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 4,700 vehicles a day, projected to reach 5,520 by 2040. The structure is 131 ft (39.9 m) long and 29 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesSth 59 EB
CrossesWisconsin & Southern RR
LocationAt Wsor
RouteState Highway 59
Coordinates42.76889, -88.92011
Functional classUrban Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2021
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length131 ft (39.9 m)
Longest span127 ft (38.7 m)
Deck width29 ft (8.7 m)
Roadway width20 ft (6.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,700 (2022)
Projected traffic5,520 by 2040
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed0.6 mi (1 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 59 EB over Wisconsin & Southern RR built?

It was built in 2009, making it 16 years old in 2025.

What condition is Sth 59 EB over Wisconsin & Southern RR 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 2021.

How much traffic does Sth 59 EB over Wisconsin & Southern RR carry?

About 4,700 vehicles per day (2022 count).

How long is Sth 59 EB over Wisconsin & Southern RR?

The structure is 131 ft (39.9 m) long with a longest span of 127 ft (38.7 m) and a deck 29 ft wide.

Who owns Sth 59 EB over Wisconsin & Southern RR?

It is owned by the State Highway Agency.