Beginning July 2007, TERRA provided engineering design services for improvements to the Village of Matteson’s existing underground utility system. The project included an extension of the sanitary sewer and water main along Lincoln Highway to the proposed development at Lincoln Highway and Harlem Ave.

Key improvements included 1,900 LF each of sanitary sewer and water main, including manholes, valve vaults, tees and bends. Sanitary sewer depths were up to 35 feet below ground. The extensions ran parallel to Lincoln highway before each being augured under the road for approximately 100 LF. Proposed connections to the extension were coordinated with the developer.

TERRA also provided field observation services during construction of the sanitary sewer and water main extensions. Construction began June 2009 and was completed in September 2009.