US Bridges

Lrd 50th Ave over Bull Brook

PoorPosted for load

Polk County, Wisconsin · 0.1M W JCT Cth F · Structure no. P48090200000000

Built
1963
62 years old
Condition
Poor
inspected April 2024
Type
Slab
Wood or Timber
Length
44 ft
2 main spans
Daily traffic
43
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd 50th Ave over Bull Brook is a wood or timber slab carrying Lrd 50th Ave over Bull Brook in Polk County, Wisconsin. It was built in 1963, so it is 62 years old, older than the Wisconsin average of 40.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 43 vehicles a day, projected to reach 47 by 2043. The structure is 44 ft (13.4 m) long and 24 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

Open in Google Maps
CarriesLrd 50th Ave
CrossesBull Brook
Location0.1M W JCT Cth F
RouteCity Street 0
CountyPolk County
StateWisconsin
Coordinates45.28217, -92.31908
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.6 US tons
Inventory rating48.2 US tons

Structure

Structure typeSlab
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadHS 20
Structure length44 ft (13.4 m)
Longest span21 ft (6.5 m)
Deck width24 ft (7.2 m)
Roadway width22 ft (6.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic43 (2024)
Projected traffic47 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5.6 mi (9 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township 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$207,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd 50th Ave over Bull Brook built?

It was built in 1963, making it 62 years old in 2025.

What condition is Lrd 50th Ave over Bull Brook in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Lrd 50th Ave over Bull Brook carry?

About 43 vehicles per day (2024 count).

How long is Lrd 50th Ave over Bull Brook?

The structure is 44 ft (13.4 m) long with a longest span of 21 ft (6.5 m) and a deck 24 ft wide.

Who owns Lrd 50th Ave over Bull Brook?

It is owned by the Town or Township Highway Agency.