US Bridges

Desmarais Road over Roza Canal

GoodPosted for load

Yakima County, Washington · 01.08 W Beane Road · Structure no. 080794000000000

Built
1952
73 years old
Condition
Good
inspected January 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
36 ft
1 main span
Daily traffic
470
2023 count
Owner
County
County Highway Agency

About this bridge

Desmarais Road over Roza Canal is a steel stringer/multi-beam or girder carrying Desmarais Road over Roza Canal in Yakima County, Washington. It was built in 1952, so it is 73 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. Its operating status is: posted for load restriction.

It carries about 470 vehicles a day, roughly 5% of them trucks, projected to reach 530 by 2043. The structure is 36 ft (11 m) long and 21 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesDesmarais Road
CrossesRoza Canal
Location01.08 W Beane Road
RouteCounty Highway 40100
CountyYakima County
StateWashington
Coordinates46.53561, -120.33479
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2023
Inspection intervalevery 24 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 geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating16.4 US tons
Inventory rating12.9 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 width21 ft (6.5 m)
Roadway width19 ft (5.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (2023)
Projected traffic530 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Desmarais Road over Roza Canal built?

It was built in 1952, making it 73 years old in 2025.

What condition is Desmarais Road over Roza Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2023.

How much traffic does Desmarais Road over Roza Canal carry?

About 470 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Desmarais Road over Roza Canal?

The structure is 36 ft (11 m) long with a longest span of 35 ft (10.7 m) and a deck 21 ft wide.

Who owns Desmarais Road over Roza Canal?

It is owned by the County Highway Agency.