US Bridges

White Swan Road W over Agency Creek

Good

Yakima County, Washington · 0.03 E Wesley RD · Structure no. 087908000000000

Built
1966
59 years old
Condition
Good
inspected January 2023
Type
Slab
Concrete
Length
22 ft
2 main spans
Daily traffic
1,253
2023 count
Owner
County
County Highway Agency

About this bridge

White Swan Road W over Agency Creek is a concrete slab carrying White Swan Road W over Agency Creek in Yakima County, Washington. It was built in 1966, so it is 59 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 1,253 vehicles a day, roughly 5% of them trucks, projected to reach 1,375 by 2043. The structure is 22 ft (6.7 m) long and 30 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesWhite Swan Road W
CrossesAgency Creek
Location0.03 E Wesley RD
RouteCounty Highway 55170
CountyYakima County
StateWashington
Coordinates46.38247, -120.75357
Functional classRural Major Collector

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 inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating30.3 US tons
Inventory rating23.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckOther
Main spans2
Design loadUnknown
Structure length22 ft (6.7 m)
Longest span9 ft (2.7 m)
Deck width30 ft (9.1 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,253 (2023)
Projected traffic1,375 by 2043
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$1.2 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was White Swan Road W over Agency Creek built?

It was built in 1966, making it 59 years old in 2025.

What condition is White Swan Road W over Agency 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 January 2023.

How much traffic does White Swan Road W over Agency Creek carry?

About 1,253 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is White Swan Road W over Agency Creek?

The structure is 22 ft (6.7 m) long with a longest span of 9 ft (2.7 m) and a deck 30 ft wide.

Who owns White Swan Road W over Agency Creek?

It is owned by the County Highway Agency.