US Bridges

Allwardt Farm Road over Roza Id Main Canal

FairPosted for load

Yakima County, Washington · Desmarais RD Yakima · Structure no. 13RID23.9

Built
1937
88 years old, rebuilt 1999
Condition
Fair
inspected November 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
37 ft
1 main span
Daily traffic
15
2022 count
Owner
Federal
Bureau of Reclamation

About this bridge

Allwardt Farm Road over Roza Id Main Canal is a steel stringer/multi-beam or girder carrying Allwardt Farm Road over Roza Id Main Canal in Yakima County, Washington. It was built in 1937 and reconstructed in 1999, so it is 88 years old, older than the Washington average of 49.8 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. Its operating status is: posted for load restriction.

It carries about 15 vehicles a day, projected to reach 15 by 2042. The structure is 37 ft (11.4 m) long and 19 ft wide.

Location

Open in Google Maps
CarriesAllwardt Farm Road
CrossesRoza Id Main Canal
LocationDesmarais RD Yakima
CountyYakima County
StateWashington
Coordinates46.53678, -120.32403
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating32.4 US tons
Inventory rating19.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length37 ft (11.4 m)
Longest span37 ft (11.3 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic15 (2022)
Projected traffic15 by 2042
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerBureau of Reclamation
Maintained byOther Local 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 Allwardt Farm Road over Roza Id Main Canal built?

It was built in 1937, making it 88 years old in 2025. It was reconstructed in 1999.

What condition is Allwardt Farm Road over Roza Id Main Canal 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 November 2024.

How much traffic does Allwardt Farm Road over Roza Id Main Canal carry?

About 15 vehicles per day (2022 count).

How long is Allwardt Farm Road over Roza Id Main Canal?

The structure is 37 ft (11.4 m) long with a longest span of 37 ft (11.3 m) and a deck 19 ft wide.

Who owns Allwardt Farm Road over Roza Id Main Canal?

It is owned by the Bureau of Reclamation and maintained by the Other Local Agency.