US Bridges

Ashue Rd. over Usis Canal

GoodPosted for load

Yakima County, Washington · 00.49 N of Larue RD · Structure no. 080842000000000

Built
1983
42 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
25 ft
1 main span
Daily traffic
133
2023 count
Owner
County
County Highway Agency

About this bridge

Ashue Rd. over Usis Canal is a prestressed concrete stringer/multi-beam or girder carrying Ashue Rd. over Usis Canal in Yakima County, Washington. It was built in 1983, so it is 42 years old, younger 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 133 vehicles a day, roughly 5% of them trucks, projected to reach 150 by 2043. The structure is 25 ft (7.6 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesAshue Rd.
CrossesUsis Canal
Location00.49 N of Larue RD
RouteCounty Highway 51850
Coordinates46.36798, -120.46
Functional classRural Local

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 inspectionFebruary 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.2 US tons
Inventory rating17.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span24 ft (7.3 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic133 (2023)
Projected traffic150 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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$1.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ashue Rd. over Usis Canal built?

It was built in 1983, making it 42 years old in 2025.

What condition is Ashue Rd. over Usis 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 February 2023.

How much traffic does Ashue Rd. over Usis Canal carry?

About 133 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Ashue Rd. over Usis Canal?

The structure is 25 ft (7.6 m) long with a longest span of 24 ft (7.3 m) and a deck 32 ft wide.

Who owns Ashue Rd. over Usis Canal?

It is owned by the County Highway Agency.