TERRA worked closely with the project team to develop a stormwater detention system for the improvements under tight site restraints. The stormwater management system includes an infiltration tank, permeable paver access road, and underground detention vault to accommodate the 100-year event for disturbed areas. As a space-efficient and cost-saving solution the detention tank was provided within the limits of stair foundation walls at the courtyard. TERRA coordinated, with plumbing, the re-route of existing downspouts to detention areas based on available storage and area of roof runoff. A green alley will be provided for the newly dedicated alley, and will manage its own 10-year storm event. Infiltration rates of the native sandy soils were capitalized on to minimize the required detention on both the site and dedicated alleyway.
TERRA is providing construction services for the project including site observations during civil design installations, review of product submittals, and coordinate with the design team to respond to RFIs as the project continues into the construction phase.
Images courtesy of Ann Beha Architects