US Bridges

Lrd 470th Ave over Irving Creek

FairPosted for load

Dunn County, Wisconsin · 0.3M W JCT Cth K · Structure no. P17091600000000

Built
1938
87 years old, rebuilt 1978
Condition
Fair
inspected July 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
76
2024 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

Lrd 470th Ave over Irving Creek is a steel stringer/multi-beam or girder carrying Lrd 470th Ave over Irving Creek in Dunn County, Wisconsin. It was built in 1938 and reconstructed in 1978, so it is 87 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. Its operating status is: posted for load restriction.

It carries about 76 vehicles a day, projected to reach 83 by 2043. The structure is 36 ft (11 m) long and 22 ft wide. If it were closed, the detour would be 5.6 mi (9 km).

Location

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CarriesLrd 470th Ave
CrossesIrving Creek
Location0.3M W JCT Cth K
RouteCity Street 0
CountyDunn County
StateWisconsin
Coordinates44.85129, -92.01715
Functional classRural Local

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
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
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating30.6 US tons
Inventory rating17.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length36 ft (11 m)
Longest span35 ft (10.7 m)
Deck width22 ft (6.7 m)
Roadway width21 ft (6.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic76 (2024)
Projected traffic83 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lrd 470th Ave over Irving Creek built?

It was built in 1938, making it 87 years old in 2025. It was reconstructed in 1978.

What condition is Lrd 470th Ave over Irving Creek 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 July 2024.

How much traffic does Lrd 470th Ave over Irving Creek carry?

About 76 vehicles per day (2024 count).

How long is Lrd 470th Ave over Irving Creek?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 22 ft wide.

Who owns Lrd 470th Ave over Irving Creek?

It is owned by the Town or Township Highway Agency.