US Bridges

Naches Wenas Road over Wapatox Canal

Fair

Yakima County, Washington · 00.02 NW Cleman DR · Structure no. 079970000000000

Built
1957
68 years old
Condition
Fair
inspected December 2022
Type
Stringer/Multi-beam or Girder
Steel
Length
45 ft
1 main span
Daily traffic
994
2022 count
Owner
County
County Highway Agency

About this bridge

Naches Wenas Road over Wapatox Canal is a steel stringer/multi-beam or girder carrying Naches Wenas Road over Wapatox Canal in Yakima County, Washington. It was built in 1957, so it is 68 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.

It carries about 994 vehicles a day, roughly 5% of them trucks, projected to reach 1,085 by 2042. The structure is 45 ft (13.7 m) long and 33 ft wide. If it were closed, the detour would be 21.7 mi (35 km).

Location

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CarriesNaches Wenas Road
CrossesWapatox Canal
Location00.02 NW Cleman DR
RouteCounty Highway 10350
CountyYakima County
StateWashington
Coordinates46.7337, -120.68369
Functional classRural Major Collector

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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating36.4 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length45 ft (13.7 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic994 (2022)
Projected traffic1,085 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed21.7 mi (35 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$2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Naches Wenas Road over Wapatox Canal built?

It was built in 1957, making it 68 years old in 2025.

What condition is Naches Wenas Road over Wapatox 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 December 2022.

How much traffic does Naches Wenas Road over Wapatox Canal carry?

About 994 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Naches Wenas Road over Wapatox Canal?

The structure is 45 ft (13.7 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns Naches Wenas Road over Wapatox Canal?

It is owned by the County Highway Agency.