US Bridges

Marion Drain Rd. over Dry Wash

Fair

Yakima County, Washington · 00.10 W. Osprey Rd. · Structure no. 081954000000000

Built
1974
51 years old
Condition
Fair
inspected November 2022
Type
Channel Beam
Concrete
Length
35 ft
1 main span
Daily traffic
95
2020 count
Owner
County
County Highway Agency

About this bridge

Marion Drain Rd. over Dry Wash is a concrete channel beam carrying Marion Drain Rd. over Dry Wash in Yakima County, Washington. It was built in 1974, so it is 51 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 95 vehicles a day, roughly 5% of them trucks, projected to reach 100 by 2040. The structure is 35 ft (10.7 m) long and 32 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesMarion Drain Rd.
CrossesDry Wash
Location00.10 W. Osprey Rd.
RouteCounty Highway 50900
Coordinates46.34615, -120.67172
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionNovember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.6 US tons
Inventory rating29.7 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckOther
Main spans1
Design loadH 20
Structure length35 ft (10.7 m)
Longest span34 ft (10.4 m)
Deck width32 ft (9.8 m)
Roadway width31 ft (9.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic95 (2020)
Projected traffic100 by 2040
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Marion Drain Rd. over Dry Wash built?

It was built in 1974, making it 51 years old in 2025.

What condition is Marion Drain Rd. over Dry Wash 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 November 2022.

How much traffic does Marion Drain Rd. over Dry Wash carry?

About 95 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Marion Drain Rd. over Dry Wash?

The structure is 35 ft (10.7 m) long with a longest span of 34 ft (10.4 m) and a deck 32 ft wide.

Who owns Marion Drain Rd. over Dry Wash?

It is owned by the County Highway Agency.