US Bridges

Mabton-Sunnyside over I-82

Fair

Yakima County, Washington · 9.7 E JCT SR 223 · Structure no. 0011772E0000000

Built
1982
43 years old
Condition
Fair
inspected June 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
232 ft
2 main spans
Daily traffic
6,258
2002 count
Owner
State
State Highway Agency

About this bridge

Mabton-Sunnyside over I-82 is a concrete continuous box beam or girders - multiple carrying Mabton-Sunnyside over I-82 in Yakima County, Washington. It was built in 1982, so it is 43 years old, younger 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 6,258 vehicles a day, roughly 15% of them trucks, projected to reach 9,662 by 2036. The structure is 232 ft (70.7 m) long and 43 ft wide.

Location

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CarriesMabton-Sunnyside
CrossesI-82
Location9.7 E JCT SR 223
RouteCounty Highway 0
CountyYakima County
StateWashington
Coordinates46.30567, -119.99911
Functional classUrban Minor 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating23.6 US tons
Inventory rating18.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20 + Mod
Structure length232 ft (70.7 m)
Longest span116 ft (35.4 m)
Deck width43 ft (13.1 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,258 (2002)
Projected traffic9,662 by 2036
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

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$4.6 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was Mabton-Sunnyside over I-82 built?

It was built in 1982, making it 43 years old in 2025.

What condition is Mabton-Sunnyside over I-82 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 June 2023.

How much traffic does Mabton-Sunnyside over I-82 carry?

About 6,258 vehicles per day (2002 count), of which roughly 15% are trucks.

How long is Mabton-Sunnyside over I-82?

The structure is 232 ft (70.7 m) long with a longest span of 116 ft (35.4 m) and a deck 43 ft wide.

Who owns Mabton-Sunnyside over I-82?

It is owned by the State Highway Agency.