US Bridges

Sth 33 over Milwaukee River

Fair

Ozaukee County, Wisconsin · 0.5 MI W JCT IH 43 · Structure no. B45009500000000

Built
2005
20 years old
Condition
Fair
inspected September 2024
Type
Slab
Prestressed Concrete Continuous
Length
253 ft
4 main spans
Daily traffic
19,500
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 33 over Milwaukee River is a prestressed concrete continuous slab carrying Sth 33 over Milwaukee River in Ozaukee County, Wisconsin. It was built in 2005, so it is 20 years old, younger 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 19,500 vehicles a day, projected to reach 28,500 by 2043. The structure is 253 ft (77.1 m) long and 66 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

Location

Open in Google Maps
CarriesSth 33
CrossesMilwaukee River
Location0.5 MI W JCT IH 43
RouteState Highway 33
CountyOzaukee County
StateWisconsin
Coordinates43.38179, -87.9373
Functional classRural Principal Arterial - Other

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.8 US tons
Inventory rating39.2 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length253 ft (77.1 m)
Longest span75 ft (22.9 m)
Deck width66 ft (20 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic19,500 (2022)
Projected traffic28,500 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Sth 33 over Milwaukee River built?

It was built in 2005, making it 20 years old in 2025.

What condition is Sth 33 over Milwaukee River 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 September 2024.

How much traffic does Sth 33 over Milwaukee River carry?

About 19,500 vehicles per day (2022 count).

How long is Sth 33 over Milwaukee River?

The structure is 253 ft (77.1 m) long with a longest span of 75 ft (22.9 m) and a deck 66 ft wide.

Who owns Sth 33 over Milwaukee River?

It is owned by the State Highway Agency.