Many of the iconic bridges that span the Los Angeles River are slated for retrofit and, in some cases, demolition. Larry Mantle, host of KPCC's Air Talk, moderates a panel discussion of experts and preservationists on the status and plans for these landmarks. Organized by the Getty Conservation Institute, the Los Angeles Conservancy, and Friends of the Los Angeles River. A related daylong event featuring tours and activities takes place on Sunday, April 13.

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