Cull Creek Regulator construction, and Campus, Keller, Gramercy, and Villareal Regulators Replacement

Project Update - Night Work

Night work has been extended to October 9. No night work will be done for Friday, October 2 or Saturday, October 3rd. Night work will restart on Sunday, October 4th and go until Friday, October 9, 2026.

Additional work for back fill (backfill is the process of refilling an excavated hole) and complete the installation of a 12-inch pipeline will be completed by Friday, October 9th. This will be followed by final paving work which will be completed at night to minimize disruption to commute hours.

What to expect

During night work, you may see temporary parking restrictions within the park, construction equipment and materials, construction-related noise and dust, and temporary lighting to support overnight work. Pedestrian and emergency vehicle access will be maintained at all times.

Night work will be conducted from 8 p.m. to 6 a.m. for the duration of the work at this location.

Project details

The Cull Creek Regulator construction, and Campus, Keller, Gramercy, and Villareal Regulators Replacement Project (project) will construct and replace regulator facilities to improve distribution system operations and reliability. The primary objectives of the project are to increase the reliability of the District's distribution system operations and address safety issues associated with the existing facilities.

All of regulators range from 38 - 52 years old and are nearing the end of their useful life. In addition, the project will construct a temporary Cull Creek Rate Control Station (RCS), which is required to support an outage for the Almond Reservoir Replacement Project. After the Almond Reservoir Replacement Project is completed, the temporary RCS will be converted to a regulator to serve the Almond Pressure Zone.

The work will be performed in the following locations:

• Castro Valley: Cull Creek RCS/Regulator and Villareal Regulator.
• San Leandro: Gramercy Regulator.
• Oakland: Campus Regulator and Keller Regulator.

Note: Cull Creek, Villareal, Gramercy, Campus, and Keller are the names of the regulators and not the locations on streets.

Project scope

The major construction tasks are as follows:

• Cull Creek RCS/Regulator: Construction of the Cull Creek temporary RCS/permanent regulator, installing a new regulator vault and dual chamber rolling diaphragm pressure reducing valve (PRV) and a motorized butterfly valve, and all associated piping, coatings, paintings, and appurtenances.
• Campus (Oakland), Keller (Oakland), Gramercy (San Leandro), and Villareal Regulators (Castro Valley): Replacement of existing regulator vault with a new shallow vault and, four butterfly valves, and all associated piping, coatings, paintings, and appurtenances.

Workplan and schedule

Design is scheduled from Spring 2024 to January 2025, followed by construction from April 2025 to September 2026. Schedule is subject to change. Construction hours and completion dates will vary for each project location. Please see below:

Cull Creek - Regulator/Rate Control Station

• April 7, 2025 to October 2026
• Monday through Friday - 9 a.m. to 3 p.m.
• Night work scheduled for Sunday, July 12 and ending on Thursday, June 23

Campus Regulator - COMPLETED

• April 7, 2025 to July 2026
• Monday through Friday - 7 a.m. to 6 p.m.

Keller Regulator

• August 4, 2025 to August 2026
• Monday through Friday - 7 a.m. to 6 p.m.

Villareal Regulator

• October 18, 2025 to August 2026
• Monday through Friday - 9 a.m. to 3 p.m

Gramercy Regulators - COMPLETED

• November 27, 2025 to June 2026
• Monday through Friday - 9 a.m. to 3 p.m.

What to expect?

Expect construction-related noise and dust, the presence of equipment/machinery at the project site, and increased traffic to and from the site. 

Contact

Community Affairs 
Email: construction-south@ebmud.com

510-287-0140 for Gramercy, Villareal Regulator, and Cull Creek Rate Control Station/Regulator issues/concerns.

510-287-0544 for Campus and Keller Regulators issues/concerns.

Contractors: For bid opportunities on EBMUD projects, see Business Center.