El Camino Real Sewer Capacity Improvements
Project Type:
Conveyance – Basin 2-3 Collection System Improvements
Approximate Construction Start & End Dates:
Spring 2024 – Summer 2026
Project Status:
The El Camino Real Sewer Capacity Improvements Project is part of our 10-year plan to improve San Mateo’s overall wastewater system and better manage flooding.
All construction work is complete as of April 2026. The project included installation of approximately 7,800 linear feet of pipe, including new and upsized relief sewers and maintenance hole installations.
Street restoration work, primarily repaving or resurfacing affected sections of City streets and El Camino Real, as shown in the figure, started in June 2026. Work will require approximately two weeks at each location, and is expected to be completed in August 2026.
Impacts may include temporary road and parking closures, temporary detours, and temporary driveway restrictions, as well as typical construction noise, vibration, dust, and construction vehicle traffic. In general, work will occur weekdays between 8 a.m. and 5 p.m. Work on El Camino Real will be performed between 9 p.m. and 5 a.m. to minimize disruption to the community. Residents near the affected areas will receive door hangers with additional details prior to work occurring in their area.
Construction will occur in three different areas of the City as shown in the figure and as listed below.
Project Description:
The purpose of the Basin 2 & 3 Collection System Upgrade is to improve the ability of the overall wastewater collection system to manage sewer flows during heavy seasonal rainfall. During heavy rains, the wastewater collection system capacity is overwhelmed by the amount of rainwater that enters the system through infiltration and inflow. This causes sewer overflows at locations around San Mateo, such as at maintenance holes. These overflows contaminate city streets, creeks, lagoons, beaches, and the San Francisco Bay. The planned improvements will help prevent sewer overflows, as well as help the City comply with regulatory requirements.
The El Camino Real Sewer Capacity Improvements project involves installation of sewers that total approximately 7,800 linear feet of pipe, including new and upsized relief sewers and installation of manholes. The upgrades will reinforce the system with additional capacity, helping to reduce sewer overflows.
We thank you for your continued patience and cooperation as we near the completion of our sewer system improvements.
Key Project Contact:
CWP Project Manager: Makarand Pendse, 1-925-392-3726, Makarand.pendse@jacobs.com