US Bridges

IH 39 SB / IH 90 E over Lrd Palmer Drive

Good

Rock County, Wisconsin · 2.7M E JCT Ush 14 to E · Structure no. B53033000000000

Built
2019
6 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
73 ft
1 main span
Daily traffic
29,500
2022 count
Owner
State
State Highway Agency

About this bridge

IH 39 SB / IH 90 E over Lrd Palmer Drive is a prestressed concrete stringer/multi-beam or girder carrying IH 39 SB / IH 90 E over Lrd Palmer Drive in Rock County, Wisconsin. It was built in 2019, so it is 6 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 29,500 vehicles a day, roughly 38% of them trucks, projected to reach 46,200 by 2040. The structure is 73 ft (22.1 m) long and 85 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesIH 39 SB / IH 90 E
CrossesLrd Palmer Drive
Location2.7M E JCT Ush 14 to E
RouteInterstate 39
CountyRock County
StateWisconsin
Coordinates42.67774, -88.98369
Functional classUrban 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
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionSeptember 2023
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 rating67.1 US tons
Inventory rating51.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHL 93
Structure length73 ft (22.1 m)
Longest span68 ft (20.7 m)
Deck width85 ft (25.8 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,500 (2022)
Projected traffic46,200 by 2040
Trucks38%
Lanes on structure5
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed0.6 mi (1 km)
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 SB / IH 90 E over Lrd Palmer Drive built?

It was built in 2019, making it 6 years old in 2025.

What condition is IH 39 SB / IH 90 E over Lrd Palmer Drive 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 2023.

How much traffic does IH 39 SB / IH 90 E over Lrd Palmer Drive carry?

About 29,500 vehicles per day (2022 count), of which roughly 38% are trucks.

How long is IH 39 SB / IH 90 E over Lrd Palmer Drive?

The structure is 73 ft (22.1 m) long with a longest span of 68 ft (20.7 m) and a deck 85 ft wide.

Who owns IH 39 SB / IH 90 E over Lrd Palmer Drive?

It is owned by the State Highway Agency.