With more than 10 miles of Bay shoreline, a Redwood City Council study session focused on its vulnerability to sea-level rise and adaptation planning considerations.  A study shows major sources of flooding in Redwood City include elevated Bay water levels, runoff and emergent groundwater. Wet winters and heavy storms also influence high tides and more severe flooding along watersheds.  Mayor Jeff Gee said addressing flooding, sea-level rise and groundwater concerns will be a long-term effort, but it can only start with these studies of gaps in the city’s infrastructure and steps forward.