US Bridges

IH Ramp IH 41/USH over Sth 175 SB

Fair

Milwaukee County, Wisconsin · 0.2 MI N JCT IH 41 · Structure no. B40093900000000

Built
1953
72 years old, rebuilt 1988
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
148 ft
3 main spans
Daily traffic
6,600
2022 count
Owner
State
State Highway Agency

About this bridge

IH Ramp IH 41/USH over Sth 175 SB is a steel continuous stringer/multi-beam or girder carrying IH Ramp IH 41/USH over Sth 175 SB in Milwaukee County, Wisconsin. It was built in 1953 and reconstructed in 1988, so it is 72 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 5 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 6,600 vehicles a day, roughly 6% of them trucks, projected to reach 17,400 by 2043. The structure is 148 ft (45 m) long and 35 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

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CarriesIH Ramp IH 41/USH
CrossesSth 175 SB
Location0.2 MI N JCT IH 41
RouteInterstate 41
CountyMilwaukee County
StateWisconsin
Coordinates43.13168, -88.05395
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.8 US tons
Inventory rating37.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 20
Structure length148 ft (45 m)
Longest span56 ft (17.2 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,600 (2022)
Projected traffic17,400 by 2043
Trucks6%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemYes

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$923,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH Ramp IH 41/USH over Sth 175 SB built?

It was built in 1953, making it 72 years old in 2025. It was reconstructed in 1988.

What condition is IH Ramp IH 41/USH over Sth 175 SB 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 July 2024.

How much traffic does IH Ramp IH 41/USH over Sth 175 SB carry?

About 6,600 vehicles per day (2022 count), of which roughly 6% are trucks.

How long is IH Ramp IH 41/USH over Sth 175 SB?

The structure is 148 ft (45 m) long with a longest span of 56 ft (17.2 m) and a deck 35 ft wide.

Who owns IH Ramp IH 41/USH over Sth 175 SB?

It is owned by the State Highway Agency.