US Bridges

IH 39 Nb/ IH 90 WB over Lrd Milwaukee Street

Good

Rock County, Wisconsin · 2.0M W JCT Sth 11 to E · Structure no. B53021500000000

Built
2004
21 years old
Condition
Good
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
151 ft
3 main spans
Daily traffic
29,500
2022 count
Owner
State
State Highway Agency

About this bridge

IH 39 Nb/ IH 90 WB over Lrd Milwaukee Street is a steel continuous stringer/multi-beam or girder carrying IH 39 Nb/ IH 90 WB over Lrd Milwaukee Street in Rock County, Wisconsin. It was built in 2004, so it is 21 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 151 ft (46 m) long and 75 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesIH 39 Nb/ IH 90 WB
CrossesLrd Milwaukee Street
Location2.0M W JCT Sth 11 to E
RouteInterstate 39
Coordinates42.6966, -88.98391
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Last inspectionOctober 2024
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 rating79.1 US tons
Inventory rating46.4 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length151 ft (46 m)
Longest span73 ft (22.3 m)
Deck width75 ft (22.8 m)
Roadway width72 ft (21.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,500 (2022)
Projected traffic46,200 by 2040
Trucks38%
Lanes on structure3
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 Nb/ IH 90 WB over Lrd Milwaukee Street built?

It was built in 2004, making it 21 years old in 2025.

What condition is IH 39 Nb/ IH 90 WB over Lrd Milwaukee Street 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 October 2024.

How much traffic does IH 39 Nb/ IH 90 WB over Lrd Milwaukee Street carry?

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

How long is IH 39 Nb/ IH 90 WB over Lrd Milwaukee Street?

The structure is 151 ft (46 m) long with a longest span of 73 ft (22.3 m) and a deck 75 ft wide.

Who owns IH 39 Nb/ IH 90 WB over Lrd Milwaukee Street?

It is owned by the State Highway Agency.