US Bridges

IH 39 Nb/ IH 90 WB over Wsor Railroad

Good

Rock County, Wisconsin · 4.6M W JCT Sth 26 to N · Structure no. B53035200000000

Built
2020
5 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
26,750
2022 count
Owner
State
State Highway Agency

About this bridge

IH 39 Nb/ IH 90 WB over Wsor Railroad is a prestressed concrete stringer/multi-beam or girder carrying IH 39 Nb/ IH 90 WB over Wsor Railroad in Rock County, Wisconsin. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 26,750 vehicles a day, roughly 29% of them trucks, projected to reach 32,100 by 2042. The structure is 73 ft (22.4 m) long and 63 ft wide.

Location

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CarriesIH 39 Nb/ IH 90 WB
CrossesWsor Railroad
Location4.6M W JCT Sth 26 to N
RouteInterstate 39
CountyRock County
StateWisconsin
Coordinates42.78622, -89.00423
Functional classRural Principal Arterial - Interstate

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating56.8 US tons
Inventory rating44 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.4 m)
Longest span69 ft (21 m)
Deck width63 ft (19.1 m)
Roadway width60 ft (18.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic26,750 (2022)
Projected traffic32,100 by 2042
Trucks29%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesRailroad
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 IH 39 Nb/ IH 90 WB over Wsor Railroad built?

It was built in 2020, making it 5 years old in 2025.

What condition is IH 39 Nb/ IH 90 WB over Wsor Railroad 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 IH 39 Nb/ IH 90 WB over Wsor Railroad carry?

About 26,750 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is IH 39 Nb/ IH 90 WB over Wsor Railroad?

The structure is 73 ft (22.4 m) long with a longest span of 69 ft (21 m) and a deck 63 ft wide.

Who owns IH 39 Nb/ IH 90 WB over Wsor Railroad?

It is owned by the State Highway Agency.