US Bridges

SR 22 over Slough of Yakima R

Fair

Yakima County, Washington · 0.7 E JCT I-82 · Structure no. 0001942A0000000

Built
1935
90 years old
Condition
Fair
inspected May 2023
Type
Tee Beam
Concrete Continuous
Length
115 ft
3 main spans
Daily traffic
9,615
2023 count
Owner
State
State Highway Agency

About this bridge

SR 22 over Slough of Yakima R is a concrete continuous tee beam carrying SR 22 over Slough of Yakima R in Yakima County, Washington. It was built in 1935, so it is 90 years old, older than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 9,615 vehicles a day, roughly 8% of them trucks, projected to reach 11,752 by 2039. The structure is 115 ft (35.1 m) long and 31 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesSR 22
CrossesSlough of Yakima R
Location0.7 E JCT I-82
RouteState Highway 22
CountyYakima County
StateWashington
Coordinates46.40675, -120.3145
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating22.8 US tons
Inventory rating17.9 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length115 ft (35.1 m)
Longest span47 ft (14.3 m)
Deck width31 ft (9.3 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,615 (2023)
Projected traffic11,752 by 2039
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$1.6 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 22 over Slough of Yakima R built?

It was built in 1935, making it 90 years old in 2025.

What condition is SR 22 over Slough of Yakima R in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2023.

How much traffic does SR 22 over Slough of Yakima R carry?

About 9,615 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is SR 22 over Slough of Yakima R?

The structure is 115 ft (35.1 m) long with a longest span of 47 ft (14.3 m) and a deck 31 ft wide.

Who owns SR 22 over Slough of Yakima R?

It is owned by the State Highway Agency.