US Bridges

IH 41NB-ZOO Freewa over Lrd W Burleigh ST

Fair

Milwaukee County, Wisconsin · 4.0M N JCT IH 894 to W · Structure no. B40035700000000

Built
1967
58 years old
Condition
Fair
inspected April 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
172 ft
2 main spans
Daily traffic
62,800
2023 count
Owner
State
State Highway Agency

About this bridge

IH 41NB-ZOO Freewa over Lrd W Burleigh ST is a steel continuous stringer/multi-beam or girder carrying IH 41NB-ZOO Freewa over Lrd W Burleigh ST in Milwaukee County, Wisconsin. It was built in 1967, so it is 58 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 62,800 vehicles a day, roughly 3% of them trucks, projected to reach 71,600 by 2043. The structure is 172 ft (52.3 m) long and 64 ft wide.

CarriesIH 41NB-ZOO Freewa
CrossesLrd W Burleigh ST
Location4.0M N JCT IH 894 to W
RouteInterstate 41
Coordinates43.07436, -88.05794
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 inspectionApril 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 rating54 US tons
Inventory rating32.2 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length172 ft (52.3 m)
Longest span86 ft (26.2 m)
Deck width64 ft (19.5 m)
Roadway width61 ft (18.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic62,800 (2023)
Projected traffic71,600 by 2043
Trucks3%
Lanes on structure3
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.1 million (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was IH 41NB-ZOO Freewa over Lrd W Burleigh ST built?

It was built in 1967, making it 58 years old in 2025.

What condition is IH 41NB-ZOO Freewa over Lrd W Burleigh ST 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 April 2024.

How much traffic does IH 41NB-ZOO Freewa over Lrd W Burleigh ST carry?

About 62,800 vehicles per day (2023 count), of which roughly 3% are trucks.

How long is IH 41NB-ZOO Freewa over Lrd W Burleigh ST?

The structure is 172 ft (52.3 m) long with a longest span of 86 ft (26.2 m) and a deck 64 ft wide.

Who owns IH 41NB-ZOO Freewa over Lrd W Burleigh ST?

It is owned by the State Highway Agency.