US Bridges

Campbell Rd. over Marion Drain

Good

Yakima County, Washington · 00.01 N Mariondrain · Structure no. 083584000000000

Built
1974
51 years old
Condition
Good
inspected February 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
78 ft
1 main span
Daily traffic
10
2023 count
Owner
County
County Highway Agency

About this bridge

Campbell Rd. over Marion Drain is a prestressed concrete stringer/multi-beam or girder carrying Campbell Rd. over Marion Drain 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 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.

It carries about 10 vehicles a day, roughly 36% of them trucks, projected to reach 45 by 2043. The structure is 78 ft (23.8 m) long and 32 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesCampbell Rd.
CrossesMarion Drain
Location00.01 N Mariondrain
RouteCounty Highway 51750
Coordinates46.32501, -120.43897
Functional classRural Local

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 inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.8 US tons
Inventory rating11.8 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span76 ft (23.2 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (2023)
Projected traffic45 by 2043
Trucks36%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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$3.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Campbell Rd. over Marion Drain built?

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

What condition is Campbell Rd. over Marion Drain 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 February 2023.

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

About 10 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is Campbell Rd. over Marion Drain?

The structure is 78 ft (23.8 m) long with a longest span of 76 ft (23.2 m) and a deck 32 ft wide.

Who owns Campbell Rd. over Marion Drain?

It is owned by the County Highway Agency.