Completed: Crown Valley Parkway

Pipeline Replacement Project

Learn about the completed Crown Valley Parkway Pipeline Replacement Project, enhancing water and sewer reliability for Laguna Niguel residents. 

Work on Crown Valley Parkway Has Been Completed

Thank you for your patience throughout this important project.  Please note that work by other agencies may still be taking place on Crown Valley Parkway.  For questions regarding these other projects, please contact the City of Laguna Niguel Public Works Department by calling (949) 362-4337 or emailing Works@cityoflagunaniguel.org.

Project Overview

The Crown Valley Parkway Pipeline Replacement Project replaced about 2 miles of water transmission main and sewer force main pipelines. Both pipelines are within Crown Valley Parkway, between Camino Del Avion and Hillhurst Dr. With good maintenance, the former pipelines served the community well for over 60 years. To ensure continued safe and reliable service (and minimize the frequency of costly and disruptive outages), the aging infrastructure required replacement. The newly constructed pipelines are essential to providing drinking water and sewer service to a significant portion of the City of Laguna Niguel.  

Moulton Niguel Water District also coordinated with South Coast Water District on their project to replace 0.5 miles of a regional water supply pipeline within Crown Valley Parkway. Doing these projects together significantly reduced the overall duration of construction activities.

The Joint Regional Water Supply System (JRWSS) and South Coast Water District’s Crown Valley Parkway Transmission Main Relocation Project consisted of replacing 0.5 miles of a 36-inch diameter regional water supply pipeline. Visit scwd.org/crownvalley for the most up-to-date information regarding SCWD’s project. 

Benefits

Increased Safety and Water Reliability for Future Generations

Installed new water transmission pipelines and new sewer pipelines that increase reliability. The former pipelines were replaced to ensure safe and reliable water and sewer service to homes and businesses in Laguna Niguel.

Community Well-Being

Traffic Signal Video Detection systems were installed at the intersections of Crown Valley Parkway with Camino Del Avion and Club House Drive. These systems help improve traffic flow to provide a more efficient flow during construction and conditions after the project was completed.

Project Background

  • The Crown Valley Pipeline Replacements Project included the Lower Salada Lift Station Force Main Replacement, the Crown Valley Parkway Transmission Main Lower Reach Replacement, and the I.D. No. 1 Master Meter Relocation. These facilities are located within the same portion of Crown Valley Parkway between Camino Del Avion and Hillhurst Drive in the City of Laguna Niguel. 
  • The Lower Salada Lift Station Force Main conveys untreated wastewater from the Lower Salada Lift Station located just south of the intersection of Crown Valley Parkway and Camino Del Avion to a summit manhole located approximately 1.75 miles north along Crown Valley Parkway, where it transitions to a gravity sewer pipeline and ultimately makes its way to the Regional Treatment Plant. The former Lower Salada Lift Station Force Main was constructed in 1963. Approximately half of the former force main is within Crown Valley Parkway, and half is within West Nine, a residential housing tract on the east side of Crown Valley Parkway bordering El Niguel Country Club. 
  • The Crown Valley Parkway Transmission Main is a critical potable water transmission main traversing from Dana Point to Mission Viejo within Crown Valley Parkway. The lower reach of the transmission main extends from Camino Del Avion to the I.D. No. 1 Master Meter located approximately 1.75 miles north along Crown Valley Parkway. The former lower reach of the transmission main was constructed in 1963. 

Additional Questions?

Please feel free to call us at (949) 425-3500, email us at crownvalley@mnwd.com, or use the form below.