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Carrington Elementary School, Waterbury, CT
HRP provided site design services, as a subconsultant to Friar Associates, Inc., for the proposed construction of a new elementary school. The project consists of two phases including the construction of a new school behind an existing school and the demolition of the existing school and construction of a grass athletic field.
The overall project covered 10.5 acres of the existing 12.5 acre lot owned by the City. We prepared the site layout, grading, drainage, utility coordination, and soil erosion and sediment control design, the design to support the construction of a new roadway, parking areas, landscaped areas, bioretention areas, a stormwater management system, and associated site utilities. We performed a storm drainage analysis and modeling, including the design of underground detention and infiltration systems and specified stormwater treatment systems to treat the first inch of runoff from the site.
The project design was challenged by steep existing slopes, large existing wooded areas and the presence of shallow bedrock on site. We performed cut/fill analyses and a detailed grading plan to minimize excavation, rock-blasting, and retaining wall costs. We designed underground detention and infiltration areas to match proposed peak runoff discharges with existing conditions for the 25-year storm event and analyzed the flow to the existing drainage network to prevent surcharging to the system.