I attended a forum on infrastructure and this project caught my eye.

Visit the website for full details:
“Our vision for the Piggyback Yards is founded on four major principles; restore the Los Angeles River at the heart of the city while providing access to people and promoting sound water management; create significant public open space with a wealth of activities; connect to adjacent neighborhoods and bridge between east and west while maintaining all major existing railroads; build a diverse, vibrant community where people live, work, learn and play.”