Clean Water Program LogoCity of San Mateo LogoCity of Foster City LogoCity of San Mateo Public Works Logo


Underground Flow Equalization System

UFES Traffic Update – October 17, 2022

Saratoga Drive – More Restrictive Lane Closures to Start in Late October

During the week of October 24, 2022, the City will implement traffic control measures to begin closing the two eastbound lanes of Saratoga Drive and converting one of the westbound lanes for eastbound travel. Bicycle and pedestrian traffic will also be adjusted for safety purposes. This Saratoga traffic control is anticipated to remain in effect for approximately 5 months. These closures will allow for the continuation of pipeline construction in Saratoga Drive in conjunction with construction of the UFES project.

Please watch for signs indicating traffic pattern changes, and allow extra time in your travel plans to accommodate the new traffic patterns. Please click on the following images for details.

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

Please visit our UFES Project Page for complete project details.

*Construction schedules are subject to change

Map of Saratoga Work Zone

Illustration of Saratoga at Delaware Street

Illustration of Saratoga at Event Center Driveway

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.