US Bridges

Meyers Rd. over Wanity Slough

FairPosted for load

Yakima County, Washington · 00.09 S Chambers RD · Structure no. 084301000000000

Built
1965
60 years old
Condition
Fair
inspected January 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
40 ft
2 main spans
Daily traffic
16
2019 count
Owner
County
County Highway Agency

About this bridge

Meyers Rd. over Wanity Slough is a wood or timber stringer/multi-beam or girder carrying Meyers Rd. over Wanity Slough in Yakima County, Washington. It was built in 1965, so it is 60 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 5 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 16 vehicles a day, roughly 5% of them trucks, projected to reach 20 by 2039. The structure is 40 ft (12.2 m) long and 26 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

Location

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CarriesMeyers Rd.
CrossesWanity Slough
Location00.09 S Chambers RD
RouteCounty Highway 70390
CountyYakima County
StateWashington
Coordinates46.33333, -120.29167
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
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 within limits of footing or piles
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 rating16.8 US tons
Inventory rating12.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadH 15
Structure length40 ft (12.2 m)
Longest span20 ft (6.1 m)
Deck width26 ft (7.9 m)
Roadway width26 ft (7.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic16 (2019)
Projected traffic20 by 2039
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 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 Meyers Rd. over Wanity Slough built?

It was built in 1965, making it 60 years old in 2025.

What condition is Meyers Rd. over Wanity Slough 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 January 2023.

How much traffic does Meyers Rd. over Wanity Slough carry?

About 16 vehicles per day (2019 count), of which roughly 5% are trucks.

How long is Meyers Rd. over Wanity Slough?

The structure is 40 ft (12.2 m) long with a longest span of 20 ft (6.1 m) and a deck 26 ft wide.

Who owns Meyers Rd. over Wanity Slough?

It is owned by the County Highway Agency.