Roadway Drainage Projects - East Haven, CT

Southwest Central Area Drainage Study

The study area encompassed approximately 300 acres consisting of 37,000 liner feet of streets and 45 intersections. The purpose of the study was to review the adequacy of the existing drainage systems and propose improvements to alleviate flooding problems in the study area. The study included field survey of existing drainage systems, hydrologic analysis of five watersheds, hydraulic analysis and design of 31,000 liner feet of storm sewers ranging in size from 12" to 60"diameter.

Foxon Pond Drainage Study and Improvements

The Foxon Pond drainage area encompassed 350 acres of a residential neighborhood prone to flooding due to the overflow of Foxon Pond. Hydrologic and hydraulic studies were conducted to develop alternatives to alleviate the flooding problem. The selected alternative diverted upstream drainage away from Foxon Pond and directly into the Farm River and included the installation of 3,500 linear feet of storm sewers ranging from 36" to 60" diameter.

Morris Creek Flood Control Studies

Cardinal Engineering was retained by the Town of East Haven and the City of New Haven to prepare a flood control study of the Morris Creek Drainage Basin and to prepare a plan to mitigate flooding at Tweed-New Haven Airport, East Haven Industrial Park and upstream areas of East Haven. This project also included the preparation of an environmental impact statement necessary for the implementation of development plans for the airport and industrial park.

Morris Creek Basin drains approximately 2,700 acres of East Haven and New Haven into the east side of New Haven Harbor. Morris Creek presently flows through the west side of Tweed-New Haven Airport. The recommended plan included the relocation of 6,000 linear feet of Morris Creek to the east side of the airport, the development of wetlands for flood retention and redirection of upstream storm drainage to Morris Cove.

Farm River Watershed Flood Control Study

The purpose of this study was to determine flood flow data and prepare conceptual design for improvements to the Farm River Channel to alleviate periodic flooding of nearby residential properties and a Junior High School. The Farm River originates at Pistapaug Pond in Wallingford and flows for 18 miles to Long Island Sound. The river has a drainage area of 26 square miles.The study included hydrologic analysis, hydraulics, water surface profiles and design of channel improvements for approximately five miles of the Farm River. It also included horizontal and vertical realignment and recommendations for hydraulic improvements to 18 bridges.

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