US Bridges

Pom Pom Rd. over Toppenish Creek

Good

Yakima County, Washington · 0.55 S. of Marion Drain · Structure no. 086509000000000

Built
1998
27 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
87 ft
1 main span
Daily traffic
89
2020 count
Owner
County
County Highway Agency

About this bridge

Pom Pom Rd. over Toppenish Creek is a prestressed concrete stringer/multi-beam or girder carrying Pom Pom Rd. over Toppenish Creek in Yakima County, Washington. It was built in 1998, so it is 27 years old, younger 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 89 vehicles a day, roughly 5% of them trucks, projected to reach 100 by 2040. The structure is 87 ft (26.5 m) long and 34 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

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CarriesPom Pom Rd.
CrossesToppenish Creek
Location0.55 S. of Marion Drain
RouteCounty Highway 50650
CountyYakima County
StateWashington
Coordinates46.33849, -120.71156
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.9 US tons
Inventory rating36.8 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length87 ft (26.5 m)
Longest span81 ft (24.7 m)
Deck width34 ft (10.4 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic89 (2020)
Projected traffic100 by 2040
Trucks5%
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$3.5 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pom Pom Rd. over Toppenish Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Pom Pom Rd. over Toppenish Creek 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 December 2022.

How much traffic does Pom Pom Rd. over Toppenish Creek carry?

About 89 vehicles per day (2020 count), of which roughly 5% are trucks.

How long is Pom Pom Rd. over Toppenish Creek?

The structure is 87 ft (26.5 m) long with a longest span of 81 ft (24.7 m) and a deck 34 ft wide.

Who owns Pom Pom Rd. over Toppenish Creek?

It is owned by the County Highway Agency.