Trilogy at La Quinta

La Quinta, CA


Shea Homes


1,300 Units



Trilogy at La Quinta is the first active adult community built in the City of La Quinta, developed by J.F. Shea Corporation, the largest family owned, privately held construction company in the United States. The project, located between Avenue 60 and 62, between Monroe Street and Madison Street, consisting of 1,300 residential units and a championship golf course, was originally entitled and the first phase approved through Riverside County. The property was then annexed into the City of La Quinta. MSA Consulting was the project’s technical team coordinator and managed the consultant team, pulling together all the work performed by the architects (both clubhouse and residential), landscape architects and golf course architect to complete the golf course, infrastructure and first phase buildings. MSA designed, managed and coordinated some $40 million in infrastructure improvements for the project, including the 24″ domestic water lines within and around the entire Trilogy project. The golf course design incorporated reduced turf acreage and drought-tolerant plantings. The constructed irrigation system utilizes CVWD/BOR All American Canal surface irrigation water for efficiencies. The system itself consists of several onsite lakes that are utilized for storage and settlement of the canal water. A pump system than filters the water and irrigates the turf and plants.

As part of the Trilogy development, MSA provided a Regional Sewer Study that encompassed approximately 42 square miles. This Regional Study defined the need for a Regional Sewer pump station that MSA designed. The 9.8 MGD Regional Sewer Pump station was built and put in service in 2004 at an approximate cost of $1.5 million.

Additional Projects

Public Works

Ramon Road Widening

MSA Consulting, Inc. provided the engineering design services for the Ramon Road Bridge Widening Project Study Report (PSR). The project entails

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Hotels and Resorts

Annenberg Center at Sunnylands

MSA provided pre-design surveying, utility research/coordination, entitlement, preliminary and final civil design engineering, storm water pollution and dust mitigation plans and

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