Cardinal Engineering Associates - 55 years of excellence

Cardinal Engineering completed the design of the Trumbull Street Combined Sewer Separation project in downtown New Haven. This project will connect the upstream areas of Sub-Area E5, which have been previously separated to the downstream storm sewer system that was installed during the 1970's. This connection will allow complete separation of sub-area E.

This project included a preliminary engineering study to review several alternatives for separation. The selected alternative utilizes the existing combined sewer as a sanitary sewer and includes 1,700 lf. of 72" RCP storm sewer and 1,500 lf. of 15" sanitary sewer.

Final design of the selected alternative was completed in December, 2010. The proposed storm sewer will be up to 20 feet deep. Pipe jacking will be utilized for the installation of both sewers in areas with deep cuts, heavy utilities, and large street trees. Night-time construction and one-way traffic may be required to minimize traffic disruptions. Cardinal Engineering also provided construction contract administration and resident engineering services for this $12 million project. Construction began in the spring of 2011 and was completed in the spring of 2013.

Cardinal Engeering Associates (Design Team) and the Greater New Haven WPCA (Owner) were awarded the 2013 Water Resource/Environmental ACE Award and the 2013 Construction ACE Award of Merit by the The American Society of Civil Engineers.

View Application for ASCE Award

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