US Bridges

Sth 54 WB & EB (ma over Parking Lot

Fair

Brown County, Wisconsin · 0.7M W JCT Sth 29 to W · Structure no. B05013400180000

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
315 ft
3 main spans
Daily traffic
34,200
2022 count
Owner
State
State Highway Agency

About this bridge

Sth 54 WB & EB (ma over Parking Lot is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 54 WB & EB (ma over Parking Lot in Brown County, Wisconsin. It was built in 1973, so it is 52 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 34,200 vehicles a day, roughly 10% of them trucks, projected to reach 41,040 by 2042. The structure is 315 ft (96.1 m) long and 85 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSth 54 WB & EB (ma
CrossesParking Lot
Location0.7M W JCT Sth 29 to W
RouteState Highway 54
CountyBrown County
StateWisconsin
Coordinates44.5075, -88.01849
Functional classUrban Other Principal Arterial

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.
Last inspectionSeptember 2023
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 geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length315 ft (96.1 m)
Longest span105 ft (32.1 m)
Deck width85 ft (25.8 m)
Roadway width80 ft (24.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic34,200 (2022)
Projected traffic41,040 by 2042
Trucks10%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed6.8 mi (11 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sth 54 WB & EB (ma over Parking Lot built?

It was built in 1973, making it 52 years old in 2025.

What condition is Sth 54 WB & EB (ma over Parking Lot 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 2023.

How much traffic does Sth 54 WB & EB (ma over Parking Lot carry?

About 34,200 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Sth 54 WB & EB (ma over Parking Lot?

The structure is 315 ft (96.1 m) long with a longest span of 105 ft (32.1 m) and a deck 85 ft wide.

Who owns Sth 54 WB & EB (ma over Parking Lot?

It is owned by the State Highway Agency.