KQED's Forum As Sea Levels Rise, What Will It Take to Protect the Bay Area From Flooding?
Jan 13, 2026
In this engaging discussion, climate reporter Ezra David Romero highlights the recent severe flooding in Marin County, triggered by a mix of king tides and saturated ground. Urban resilience expert Kristina Hill explains the complexities of groundwater dynamics and the challenge of current infrastructure. Bart Ney discusses Caltrans' emergency responses and immediate solutions, while Michael Germeraad delves into the costly regional adaptations needed for sea-level rise. Together, they explore long-term strategies and innovative ideas for a resilient Bay Area.
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Studio Flooded From Groundwater Rising Up
- A San Rafael karate studio flooded from groundwater pushing up through seams while matting floated in the front, trapping the owner.
- Ezra David Romero used this on-the-ground example to show how saturated soils and tides cause inside-out flooding.
Tidal Protections Are Costly But Partial
- Protecting the Bay Area for ~4.9 feet of sea-level rise would cost roughly $100 billion for tidal defenses alone.
- Michael Germeraad notes that this figure excludes groundwater and stormwater costs, so total exposure is much higher.
Map Pumps And Plan For Salinity
- Inventory and coordinate the ad-hoc network of private and public pumps and plan for salinity impacts on infrastructure.
- Kristina Hill advises against assuming existing pumps will solve future compound flooding without a registry and redesign for salinity.
