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Underground Flow Equalization System

UFES Work Hour Update – December 22, 2021

Off-Hours Work Rescheduled for December 28, 2021; 6 a.m. – 7 p.m.

Off-hours work related to the UFES project has been approved by the City of San Mateo for Dec. 28, 2021. This work has been rescheduled from Dec. 22 due to inclement weather. Work will include pouring concrete in the excavation at the San Mateo County Event Center site. Nearby residents may experience additional truck traffic on this day before, during, and after the regular approved hours of 7 a.m. through 7 p.m. No additional noise, dust, or vibration impacts are expected from this work. If rain delays the activities, the concrete placement will be rescheduled to another day later in the week.

We thank you for your continued patience and cooperation as we make steady progress towards the completion of our sewer system improvements.

*Construction schedules are subject to change

Stay Connected with the UFES Project

The Clean Water Program’s UFES construction is well underway and we want to keep you informed. The team established multiple information channels for residents and business owners to stay connected.

  • Sign up for construction alerts (text the word UFES to 1-833-321-0231), email us at or call our hotline at 1-650-522-7250.
  • You can also visit our UFES project page to see project details and sign up for our e-newsletter. If you don’t want to opt in, but still want information, bookmark the link where we post our updates to the project website.