US Bridges

Harrah Drain Rd. over Usis Canal

FairPosted for load

Yakima County, Washington · 0.50 N of Fort Road · Structure no. 079977000000000

Built
1978
47 years old
Condition
Fair
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
40 ft
1 main span
Daily traffic
52
2023 count
Owner
County
County Highway Agency

About this bridge

Harrah Drain Rd. over Usis Canal is a prestressed concrete stringer/multi-beam or girder carrying Harrah Drain Rd. over Usis Canal in Yakima County, Washington. It was built in 1978, so it is 47 years old, younger 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 52 vehicles a day, roughly 5% of them trucks, projected to reach 70 by 2043. The structure is 40 ft (12.2 m) long and 32 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesHarrah Drain Rd.
CrossesUsis Canal
Location0.50 N of Fort Road
RouteCounty Highway 53770
Coordinates46.38222, -120.56507
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating28.2 US tons
Inventory rating22.2 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic52 (2023)
Projected traffic70 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$1.8 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Harrah Drain Rd. over Usis Canal built?

It was built in 1978, making it 47 years old in 2025.

What condition is Harrah Drain Rd. over Usis 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 February 2023.

How much traffic does Harrah Drain Rd. over Usis Canal carry?

About 52 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Harrah Drain Rd. over Usis Canal?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 32 ft wide.

Who owns Harrah Drain Rd. over Usis Canal?

It is owned by the County Highway Agency.