US Bridges

Lrd Mason ST over East River

Fair

Brown County, Wisconsin · 1.0M E JCT Sth 57 · Structure no. B05015400000000

Built
1973
52 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
170 ft
2 main spans
Daily traffic
29,071
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lrd Mason ST over East River is a steel continuous stringer/multi-beam or girder carrying Lrd Mason ST over East River 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 29,071 vehicles a day, projected to reach 35,426 by 2043. The structure is 170 ft (51.7 m) long and 67 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesLrd Mason ST
CrossesEast River
Location1.0M E JCT Sth 57
RouteCity Street 0
CountyBrown County
StateWisconsin
Coordinates44.49907, -87.99503
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.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.2 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length170 ft (51.7 m)
Longest span85 ft (25.8 m)
Deck width67 ft (20.4 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic29,071 (2022)
Projected traffic35,426 by 2043
Trucks0%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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$1.3 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd Mason ST over East River built?

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

What condition is Lrd Mason ST over East 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 October 2024.

How much traffic does Lrd Mason ST over East River carry?

About 29,071 vehicles per day (2022 count).

How long is Lrd Mason ST over East River?

The structure is 170 ft (51.7 m) long with a longest span of 85 ft (25.8 m) and a deck 67 ft wide.

Who owns Lrd Mason ST over East River?

It is owned by the City or Municipal Highway Agency.