US Bridges

Pomona Rd. E. over Roza Canal

Good

Yakima County, Washington · 0.30 W. of SR 821 · Structure no. 086271000000000

Built
1996
29 years old
Condition
Good
inspected December 2022
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
160
2022 count
Owner
County
County Highway Agency

About this bridge

Pomona Rd. E. over Roza Canal is a prestressed concrete stringer/multi-beam or girder carrying Pomona Rd. E. over Roza Canal in Yakima County, Washington. It was built in 1996, so it is 29 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 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 160 vehicles a day, roughly 5% of them trucks, projected to reach 370 by 2042. The structure is 110 ft (33.5 m) long and 34 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesPomona Rd. E.
CrossesRoza Canal
Location0.30 W. of SR 821
RouteCounty Highway 47600
Coordinates46.69, -120.48167
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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionDecember 2022
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than 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 rating73.5 US tons
Inventory rating55.3 US tons

Structure

MaterialPrestressed Concrete
DeckOther
Main spans1
Design loadHS 25 or greater
Structure length110 ft (33.5 m)
Longest span104 ft (31.7 m)
Deck width34 ft (10.4 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic160 (2022)
Projected traffic370 by 2042
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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$4.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Pomona Rd. E. over Roza Canal built?

It was built in 1996, making it 29 years old in 2025.

What condition is Pomona Rd. E. over Roza Canal 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 Pomona Rd. E. over Roza Canal carry?

About 160 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Pomona Rd. E. over Roza Canal?

The structure is 110 ft (33.5 m) long with a longest span of 104 ft (31.7 m) and a deck 34 ft wide.

Who owns Pomona Rd. E. over Roza Canal?

It is owned by the County Highway Agency.