US Bridges

I-82 over Yakima River

Poor

Benton County, Washington · 6.7 E Yakima CO LN · Structure no. 0010535B0000000

Built
1977
48 years old
Condition
Poor
inspected April 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
490 ft
1 main span
Daily traffic
11,211
2023 count
Owner
State
State Highway Agency

About this bridge

I-82 over Yakima River is a prestressed concrete stringer/multi-beam or girder carrying I-82 over Yakima River in Benton County, Washington. It was built in 1977, so it is 48 years old, younger than the Washington average of 49.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 11,211 vehicles a day, roughly 15% of them trucks, projected to reach 13,255 by 2039. The structure is 490 ft (149.4 m) long and 41 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI-82
CrossesYakima River
Location6.7 E Yakima CO LN
RouteInterstate 82
Coordinates46.21795, -119.74812
Functional classRural Principal Arterial - Interstate

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44 US tons
Inventory rating36 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20 + Mod
Structure length490 ft (149.4 m)
Longest span196 ft (59.7 m)
Deck width41 ft (12.5 m)
Roadway width38 ft (11.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,211 (2023)
Projected traffic13,255 by 2039
Trucks15%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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$9.3 million (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was I-82 over Yakima River built?

It was built in 1977, making it 48 years old in 2025.

What condition is I-82 over Yakima River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2023.

How much traffic does I-82 over Yakima River carry?

About 11,211 vehicles per day (2023 count), of which roughly 15% are trucks.

How long is I-82 over Yakima River?

The structure is 490 ft (149.4 m) long with a longest span of 196 ft (59.7 m) and a deck 41 ft wide.

Who owns I-82 over Yakima River?

It is owned by the State Highway Agency.