Flood Mitigation at Our Lady of Consolation and Good Samaritan University Hospital
Location:
West Islip, NY
Client:
Catholic Health System of Long Island, Inc.
Contract Value:
$23.35 Million
Project Dates:
October 2021 – November 2024
• Clearing/Grubbing
• Recharge Basin
• 6,440 LF of Stormwater Force main piping
• 3 Stormwater pump stations
• 5 Sanitary sewer pump stations
• Drainage collection system
• 2000’ CIP Flood Wall on Steel Sheeting
PROJECT OVERVIEW
The purpose of this project was to make the Our Lady of Consolation Nursing (OLC) and Rehabilitation Care Center and Good Samaritan University Hospital (GSUH) more flood-resilient. The Care Center had a scope of clearing/grubbing & selective demolition (existing drainage system), establishing a new recharge basin, installation of 6440 LF of 14” dia. stormwater force main piping, installation of 2 stormwater pump stations, installation of 4 sanitary sewer pump stations, installation of a drainage collection system, rehabilitation of an existing gravity sewer line and paving & landscape restoration. The scope at the Hospital included installing a drainage collection system in & around OLC, installing a 2000 LF CIP flood wall on steel sheeting, installing 1 stormwater pump station, and installing 1 sanitary sewer pump station.
WHAT MADE THIS JOB COMPLEX
As an active hospital and nursing home campus, access to GSUH and OLC facilities was required at all times, including maintaining access to the hospital, nursing home, emergency department, staff parking, visitor parking, and staging areas for construction projects by multiple other contractors on other projects. Additionally, the groundwater table at the site required that groundwater levels be temporarily lowered to perform excavations.
HOW POSILLICO SOLVED IT
Daily coordination with GSUH, OLC, and other contractors was carried out consistently to facilitate the maintenance of operations of all parties involved. Posillico assisted in the development of work zone traffic control schemes to maintain vehicle and pedestrian access around the site, and around active construction areas. To mitigate the groundwater an extensive dewatering system and staging were implemented to lower the groundwater table to facilitate safe excavations for utility and pump station construction.
