Downtown Philadelphia, having a need for more Green Space, decided to take advantage of an outdated parking garage with a novel idea used now in many areas of the Country.  Tim Haahs of Haahs Associates was hired to come up with a Park on the top of a Parking Deck.  The over 53,000 square feet of wasted space would make a great community gathering place in Downtown Philadelphia.  To support the immense weight they incorporated over 900 ton on maintenance-free Galvanized steel.  

The durability of being able to withstand the many tons of concrete and soil helped with the decision but the real reason they were attracted to Galvanized Steel was a Sustainability Seminar that the City Planners had attended, put on by the AGA, with a local Galvanizing Company.  Turning this eyesore of a garage into something reusable, environmentally good for the community, with beautiful landscaping was an ideal way of recycling the old structure.  With the moisture of the live plants and greenery, compounded by the lack of sunshine buried under the structure proved to a very suitable use for Galvanized Steel.  The architect and Landscaping group paid close attention to Ph levels in the soil and the plants, to make sure they would have a forever structure for their new downtown Park.