US Bridges

Sth 54 EB & WB (ma over Sth Monroe ST

Fair

Brown County, Wisconsin · At JCT Sth 54-STH 57 · Structure no. B05013400240000

Built
1973
52 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
279 ft
3 main spans
Daily traffic
38,800
2021 count
Owner
State
State Highway Agency

About this bridge

Sth 54 EB & WB (ma over Sth Monroe ST is a prestressed concrete continuous stringer/multi-beam or girder carrying Sth 54 EB & WB (ma over Sth Monroe ST 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 38,800 vehicles a day, projected to reach 32,824 by 2042. The structure is 279 ft (85 m) long and 73 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

Open in Google Maps
CarriesSth 54 EB & WB (ma
CrossesSth Monroe ST
LocationAt JCT Sth 54-STH 57
RouteState Highway 54
CountyBrown County
StateWisconsin
Coordinates44.50618, -88.01533
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
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 geometry8: Equal to present desirable criteria
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 length279 ft (85 m)
Longest span103 ft (31.5 m)
Deck width73 ft (22.2 m)
Roadway width67 ft (20.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic38,800 (2021)
Projected traffic32,824 by 2042
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
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 EB & WB (ma over Sth Monroe ST built?

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

What condition is Sth 54 EB & WB (ma over Sth Monroe 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 September 2023.

How much traffic does Sth 54 EB & WB (ma over Sth Monroe ST carry?

About 38,800 vehicles per day (2021 count).

How long is Sth 54 EB & WB (ma over Sth Monroe ST?

The structure is 279 ft (85 m) long with a longest span of 103 ft (31.5 m) and a deck 73 ft wide.

Who owns Sth 54 EB & WB (ma over Sth Monroe ST?

It is owned by the State Highway Agency.