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I-90/SR 18 Diverging Diamond Interchange Completion

Sector: Road • Location: Snoqualmie, Washington, United States

Source: FOX 13 Seattle

Project
Under Construction

The project involves the construction of a new diverging diamond interchange at the I-90/SR 18 interchange in Snoqualmie, Washington. The work includes placing drainage crossings, curbs, timing traffic signals, striping, and finishing the new I-90 on-ramps. The interchange has been under construction since 2022 and is scheduled to be completed by summer 2025.

Status
Under Construction
Sector
Road, Government, Waste Processing and Treatment
Location
Snoqualmie, Washington, United States of America
Updated
22 Jul 2026
Source
FOX 13 Seattle

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The project “I-90/SR 18 Diverging Diamond Interchange Completion” is an infrastructure initiative in the Road sector, located in Snoqualmie, Washington, United States. Taiyo aggregates data on it from FOX 13 Seattle.

Participants

Sponsoring Agency

Status

Original status

under construction

Taiyo status

Under Construction

Taiyo last update

2026-07-22

Contact

Not available for this record.

Description

Description

The project involves the construction of a new diverging diamond interchange at the I-90/SR 18 interchange in Snoqualmie, Washington. The work includes placing drainage crossings, curbs, timing traffic signals, striping, and finishing the new I-90 on-ramps. The interchange has been under construction since 2022 and is scheduled to be completed by summer 2025.

Original sector

Transportation

Location

Country

United States of America (USA)

State

Washington

City

Snoqualmie

Source

Source

FOX 13 Seattle

URL

More Details

Record type

Project

Sector

Road, Government, Waste Processing and Treatment

Article published date

2025-09-15

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