US Bridges

I-82 over E-E Ramp I-90

Poor

Kittitas County, Washington · JCT I-90 · Structure no. 0008385B0000000

Built
1968
57 years old
Condition
Poor
inspected July 2023
Type
Box Beam or Girders - Multiple
Concrete Continuous
Length
309 ft
4 main spans
Daily traffic
4,973
2023 count
Owner
State
State Highway Agency

About this bridge

I-82 over E-E Ramp I-90 is a concrete continuous box beam or girders - multiple carrying I-82 over E-E Ramp I-90 in Kittitas County, Washington. It was built in 1968, so it is 57 years old, older 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 4,973 vehicles a day, roughly 25% of them trucks, projected to reach 6,159 by 2039. The structure is 309 ft (94.2 m) long and 30 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-82
CrossesE-E Ramp I-90
LocationJCT I-90
RouteInterstate 82
CountyKittitas County
StateWashington
Coordinates46.97075, -120.51103
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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70 US tons
Inventory rating41 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length309 ft (94.2 m)
Longest span102 ft (31.1 m)
Deck width30 ft (9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,973 (2023)
Projected traffic6,159 by 2039
Trucks25%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
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$4.1 million (2022 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-82 over E-E Ramp I-90 built?

It was built in 1968, making it 57 years old in 2025.

What condition is I-82 over E-E Ramp I-90 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 July 2023.

How much traffic does I-82 over E-E Ramp I-90 carry?

About 4,973 vehicles per day (2023 count), of which roughly 25% are trucks.

How long is I-82 over E-E Ramp I-90?

The structure is 309 ft (94.2 m) long with a longest span of 102 ft (31.1 m) and a deck 30 ft wide.

Who owns I-82 over E-E Ramp I-90?

It is owned by the State Highway Agency.