Commercial District on Lake Avenue

St. James, NY

H2M designed the installation of sanitary sewers to the downtown commercial district on Lake Avenue in St. James for the Town of Smithtown.

The Town of Smithtown is in the process of updating their Master Plan. Lake Avenue in the hamlet of St. James is lined with retail shops, restaurants, and businesses. County Health Department requirements limit on-site wastewater discharge. Site development is limited unless a sewer system is available.

H2M assisted with the planning and design of the one-mile long sewer system. Laterals were designed from the sewer to each property. The site of the proposed wastewater pump station was identified so the design also provided for the installation of a six inch diameter force main. The design of the wastewater infrastructure was coordinated with the design of new water mains. Installation of the underground utilities is to be completed prior to a new streetscape project.

Coordination with the LIRR/MTA and procuring license agreements were necessary as this project included crossing below an existing at grade LIRR crossing. The design included installation of a jacked steel casing to house the carrier pipes without disturbing the railroad tracks. A maintenance and protection of traffic plan was included in the bid documents to reduce the impact of construction to the public.

H2M provided administration and inspection services during construction. Once additional sewers and the pump station are installed to a planned treatment plant, the businesses in the Lake Avenue commercial district will be able to make a sewer connection and abandon the existing conventional on-site sanitary systems. A sewer connection will provide opportunities for redevelopment and revitalization of each property within the hamlet service area as provided in the Master Plan.