US 101/SR 25 Interchange – Phase 1: Update on Construction Start and Road Closure Delay

Notice Cause
Construction
Notice Effect(s)
Detour
Lane Closure
Traffic Delays
Start Date
End Date
What
the planned closure of access to US 101 at Castro Valley Road and Mesa Road—which was set to start on April 16—will now be postponed. Currently, we don’t yet have a new start date, but we’ll share updates as soon as we have more information.

The planned closure of access to US 101 at Castro Valley Road and Mesa Road—which was set to start on April 16—will now be postponed. Currently, we don’t yet have a new start date, but we’ll share updates as soon as we have more information.

We know that any changes to local access are important to you, and we’re committed to keeping you informed every step of the way. Thank you for your continued patience and understanding

Why

Due to delays in the environmental permit process, the project will not begin construction on April 16, 2025, as originally planned. Although our contractor is fully prepared to start, we must wait until the necessary permits are obtained before any work can begin.

Community Impacts

No impacts