The Grand Avenue Project on LA’s Bunker Hill was first envisioned back in the 1960’s as a cluster of world-class cultural institutions along a broad, pedestrian-friendly thoroughfare. Ten years ago, architect Frank Gehry’s Walt Disney Concert Hall gave new life to the idea. Later, he designed a larger plan for the street that never happened. It was replaced by a downsized plan that recently was rejected by the Grand Avenue Authority, chaired by LA Supervisor Gloria Molina. The developer, Related, now has until early next year to come up with a scheme she likes better.