L.A. River: What Would Happen if Concrete is Removed?

An idyllic vision of removing the concrete from 51 miles of the L.A. River is problematic from scientific and social perspectives, according to the engineers and architects tasked with bringing the vision to fruition with Frank Gehry. Jessica M. Henson of OLIN and Mark Hanna of Geosyntech offer an overview of the river's hydrology.