Welcome to our Online Open House

I-5 Aurora-Donald Interchange – Building the Diverging Diamond

Thank you for joining us!

Aerial view of project area under construction

We started construction on this multiyear project in 2024 and estimate completing in 2027.

In this online open house you can learn:

About the improvements we're making as part of Phase 2.
What you can expect during construction.
What detours and impacts you may experience.
How to drive through the diverging diamond interchange.
How you can stay connected.