US Bridges

Lrd Milwaukee ST over IH 39 NB / IH 90 WB

Fair

Dane County, Wisconsin · 1.6M E JCT Ush 51 · Structure no. B13013100000000

Built
1961
64 years old, rebuilt 2018
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
238 ft
4 main spans
Daily traffic
5,900
2022 count
Owner
State
State Highway Agency

About this bridge

Lrd Milwaukee ST over IH 39 NB / IH 90 WB is a prestressed concrete stringer/multi-beam or girder carrying Lrd Milwaukee ST over IH 39 NB / IH 90 WB in Dane County, Wisconsin. It was built in 1961 and reconstructed in 2018, so it is 64 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 5,900 vehicles a day, projected to reach 7,080 by 2042. The structure is 238 ft (72.5 m) long and 33 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesLrd Milwaukee ST
CrossesIH 39 NB / IH 90 WB
Location1.6M E JCT Ush 51
RouteCity Street 0
CountyDane County
StateWisconsin
Coordinates43.09906, -89.28431
Functional classUrban Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length238 ft (72.5 m)
Longest span78 ft (23.9 m)
Deck width33 ft (10 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic5,900 (2022)
Projected traffic7,080 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed5 mi (8 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$1.8 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Lrd Milwaukee ST over IH 39 NB / IH 90 WB built?

It was built in 1961, making it 64 years old in 2025. It was reconstructed in 2018.

What condition is Lrd Milwaukee ST over IH 39 NB / IH 90 WB in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does Lrd Milwaukee ST over IH 39 NB / IH 90 WB carry?

About 5,900 vehicles per day (2022 count).

How long is Lrd Milwaukee ST over IH 39 NB / IH 90 WB?

The structure is 238 ft (72.5 m) long with a longest span of 78 ft (23.9 m) and a deck 33 ft wide.

Who owns Lrd Milwaukee ST over IH 39 NB / IH 90 WB?

It is owned by the State Highway Agency.