수도고속도로
is a linear roof garden park in Ohashi, Meguro, Tokyo, Japan, constructed on a sloping roof rising from 15 to 35 meters above street level. The garden serves to cover the intersection of two major expressways; the elevated Route 3 (Shuto Expressway) Shibuya radial route (Tanimachi JCT - Yoga) and the deep level subterranean Central Circular Route C2.