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Located in the University City District of Philadelphia, Cira Green at Cira Centre South is the city’s first elevated park and part of developer Brandywine’s 2.7 million square foot mixed-use Cira Centre South neighborhood. Tucked between the Evo Tower and the FMC Towers, Cira Green is a 52,000 square foot oasis perched 11-stories atop a parking garage, offering much needed open public green space with amazing views of the Philadelphia skyline and the Schuylkill Riverfront. Designed by Roofmeadow, Cira Green has a unique water storage system beneath its sloping lawn, swaying meadows, and the pavers on the roof: Cira Green is also Philadelphia’s first blue-green roof, which can route stormwater to the green roof areas.
Cira’s innovative blue-green roof design provides a higher level of stormwater performance than conventional green roofs. Thin detention cisterns, dubbed “pancake cisterns” by Roofmeadow, placed below the paving, capture rainfall and release it gradually to the adjacent planted areas via a system of Sutro weirs. The combined blue-green design both regulates flow rate and treats runoff prior to discharge from the roof. Moreover, integrating the park programming with stormwater management strategies avoided the cost of building additional at-grade measures to collect and treat runoff associated with the paved areas on Cira Green. Rooflite® growing media was engineered specifically for the different types of green roofs included in this project including large lawn areas, a meadow, and planters with trees and colorful perennials and vines. By artfully integrating an unobtrusive stormwater management strategy into this extensively paved, high-traffic park, Brandywine and the design team created a new standard for city living which leverages the roof plane for unparalleled amenity spaces that also aggressively manage stormwater.
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Greenroofs.com Project of the Week video photo credits: All courtesy of rooflite; Roofmeadow – with 2 Photos ©Albert Vecerka/Esto; and Brandywine Realty Trust.
Video Rating: / 5
Is there free parking there?
Greenroofs.com Project of the Week video photo credits: Cover and #4 courtesy of ©Albert Vecerka/Esto; the rest all from rooflite, Roofmeadow, and Brandywine Realty Trust.