US Bridges

Robbins Rd. over Marion Drain

PoorPosted for load

Yakima County, Washington · 00.01 N Marion Drn · Structure no. 083969000000000

Built
1959
66 years old
Condition
Poor
inspected December 2022
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
67 ft
3 main spans
Daily traffic
110
2019 count
Owner
County
County Highway Agency

About this bridge

Robbins Rd. over Marion Drain is a wood or timber stringer/multi-beam or girder carrying Robbins Rd. over Marion Drain in Yakima County, Washington. It was built in 1959, so it is 66 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for other load-capacity restriction.

It carries about 110 vehicles a day, roughly 10% of them trucks, projected to reach 200 by 2039. The structure is 67 ft (20.4 m) long and 26 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesRobbins Rd.
CrossesMarion Drain
Location00.01 N Marion Drn
RouteCounty Highway 50890
Coordinates46.32436, -120.34634
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusPosted for other load-capacity restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating6.8 US tons
Inventory rating5.4 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans3
Design loadH 20
Structure length67 ft (20.4 m)
Longest span24 ft (7.3 m)
Deck width26 ft (7.8 m)
Roadway width24 ft (7.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic110 (2019)
Projected traffic200 by 2039
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-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$1.9 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Robbins Rd. over Marion Drain built?

It was built in 1959, making it 66 years old in 2025.

What condition is Robbins Rd. over Marion Drain in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in December 2022.

How much traffic does Robbins Rd. over Marion Drain carry?

About 110 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Robbins Rd. over Marion Drain?

The structure is 67 ft (20.4 m) long with a longest span of 24 ft (7.3 m) and a deck 26 ft wide.

Who owns Robbins Rd. over Marion Drain?

It is owned by the County Highway Agency.