The Lower Northwest Interceptor is a 17.6 mile project which combines gravity sewer trunk lines, pumping stations, force mains, river tunnel crossings and other appurtenant components of this critical section of the regional sewer needs. Growth in the Sacramento area had made this project a priority with limited time for design and construction. The Program Management team, headed by MWH, was responsible for overseeing the six design firms selected by the district to provide design services, permitting, construction management, right of way acquisition and construction of the entire project. This project was substantially completed in February, 2006 and is one of the largest public works project completed in the Sacramento Area. Total project cost was $592
million.
CTA Engineering & Surveying was selected by MWH and SRCSD to provide the various surveying, mapping and platting services for the project. These services have included 1st Order GPS control, aerial photogrammetric control, boundary surveys, detailed design surveys and the construction staking for the project. Approximately 230 parcels were affected by the interceptor right of way needs and CTA Engineering & Surveying provided the plats and legal descriptions for all right of way acquisitions. The base mapping was also incorporated into a Project GIS system to assist in tracking rights of entry, permits, right of way acquisitions, construction and other community and owner sensitive issues.
Lower Northwest Interceptor Program Management CTA Engineering & Surveying
