The first phase of the park extended from West 12th Street to 22nd Street between 10th & 11th Avenue.  Subsequent phases extended the length of the elevated rail till 32nd Street.

High Line

Domino Sugar Factory

<p>An urban design, landscape architecture and public realm practice based in New York City.</p>

James Corner Field Operations

<p>The High Line can be categorized as the world’s longest green roof! The average depth of soil is only 18 inches. This shallow soil depth posed a challenge for water conservation and drainage. The park uses multiple levels of filters and drainage systems to collect, store, and distribute falling rainwater to its plants. The system starts at the very top level with pathways designed specifically to direct rainwater into the plant beds. Once in the plant beds, the water soaks into multiple layers of soil, from the topsoil to sub-layers of clay, fabric, and gravel. At the bottom, a drainage mat covered in egg carton-shaped cups reserves water to be absorbed back into the soil when conditions are dry.</p>