Cypress Trunk Sewer

Cypress Trunk Sewer

Preparation for the next phase of pipe bursting continues in Forest Lawn Cemetery at night, where crews are installing a bypass system to maintain sewer service during construction.

Night work has also resumed along the project alignment, allowing crews to inspect, clean, and grout the pipes during low-flow hours.

Current Work: City of Cypress

Location: Guardian Dr. within Forest Lawn Cemetery 

Crews are installing a bypass system to maintain sewer service during. After the bypass system is in place, crews will begin excavation for access pits needed for pipe replacement work.

• When: Ongoing – December 2026*
• Work Hours: Sunday – Friday, 8:00 p.m. – 6:00 a.m.*
• Work Impacts: Increased activity, dust, and noise levels

Location: Bloomfield St. (see map below)

Work will take place at night during low-flow hours and include pipe inspection, cleaning, and grouting.

• When: Starting as early as Sunday, August 16, lasting approximately two weeks*
• Work Hours: Sunday – Friday, 8:00 p.m. – 6:00 a.m.*
• Work Impacts:
  • Increased activity, dust, and noise levels
  • Temporary traffic control while work is performed
  • Reduced traffic lanes

 *All dates and times are subject to change due to operational factors or inclement weather.

Project Description:

The regional sewer line in the cities of Cypress, Los Alamitos, and La Palma is approximately 50 years old and in need of upgrades. The Cypress Trunk Sewer Project will focus on enhancing about 7 miles of sewer, replacing portions of the pipe with larger diameter pipe to increase the capacity, or rehabilitating other segments of pipe to extend the life of the sewer system. Approximately 100 manholes will also be replaced and/or rehabilitated. These repairs will extend the life of the sewer pipes by another 50 years.

Schedule:
Construction began in Summer 2025 and is anticipated to last approximately 3 years.

Local Sewer Provider: 

• City of Cypress – Maintenance Division – (714) 229-6760
• City of La Palma – Public Works Division – (714) 690-3310
• City of Los Alamitos – Rossmoor / Los Alamitos Area Sewer District – (562) 431-2223