US Bridges

Lateral a Road over Irrigation Canal

GoodPosted for load

Yakima County, Washington · 00.52 S Fort Road · Structure no. 080847000000000

Built
1977
48 years old
Condition
Good
inspected January 2023
Type
Channel Beam
Concrete
Length
25 ft
1 main span
Daily traffic
391
2023 count
Owner
County
County Highway Agency

About this bridge

Lateral a Road over Irrigation Canal is a concrete channel beam carrying Lateral a Road over Irrigation Canal in Yakima County, Washington. It was built in 1977, so it is 48 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 391 vehicles a day, roughly 5% of them trucks, projected to reach 600 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).

CarriesLateral a Road
CrossesIrrigation Canal
Location00.52 S Fort Road
RouteCounty Highway 50380
Coordinates46.36833, -120.48
Functional classRural Major 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.4 US tons
Inventory rating12.5 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadHS 20
Structure length25 ft (7.6 m)
Longest span21 ft (6.4 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic391 (2023)
Projected traffic600 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Lateral a Road over Irrigation Canal built?

It was built in 1977, making it 48 years old in 2025.

What condition is Lateral a Road over Irrigation 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 Lateral a Road over Irrigation Canal carry?

About 391 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is Lateral a Road over Irrigation Canal?

The structure is 25 ft (7.6 m) long with a longest span of 21 ft (6.4 m) and a deck 32 ft wide.

Who owns Lateral a Road over Irrigation Canal?

It is owned by the County Highway Agency.