Category: Sea Level Rise

Crunching the Adaptation Numbers – Not Peanuts

Regional agencies made splashy headlines when they released a joint study on the likely cost of protecting Bay Area shores from rising seas: $110 billion. But the top-line number didn’t offer much insight into the complexities. A new inventory and map from the same agencies is much more revealing.

New Flood Protection Standard for the Peninsula

In San Mateo County, new planning guidance may help cities account for rising seas when approving new developments. OneShoreline’s proposals are stricter than current requirements from federal, state, and local agencies, but those are also evolving. “The intent is to go where we already see regulators are going,” says Makena Wong, a project manager.

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Who’s on First at the SF Seawall?

Ten months after the Port of San Francisco lowered 288 experimental tiles into the water, these bio-friendly seawall surfaces are already crawling with crabs and covered in kelp. This August, researchers are finally getting a good look at all the tile types in their experiment, which range from large to small, and from bumpy to smooth, and which were hung from the waterfront at three different locations and tidal elevations in October 2022.

Crunching the Adaptation Numbers – Not Peanuts

Regional agencies made splashy headlines when they released a joint study on the likely cost of protecting Bay Area shores from rising seas: $110 billion. But the top-line number didn’t offer much insight into the complexities. A new inventory and map from the same agencies is much more revealing.

New Flood Protection Standard for the Peninsula

In San Mateo County, new planning guidance may help cities account for rising seas when approving new developments. OneShoreline’s proposals are stricter than current requirements from federal, state, and local agencies, but those are also evolving. “The intent is to go where we already see regulators are going,” says Makena Wong, a project manager.

Shores that Can Shapeshift AND Stay Put?

The region is obsessing over beach-building. Whether it’s a degraded salt marsh in downtown San Rafael or a sliver of wetlands near the old San Francisco shipyards, local practitioners are adding beaches as nature-based buffers against waves and rising seas to adaptation projects around the Bay.

Five Threats in Five Places

Coastal erosion in Pacifica, drought in Brentwood, fires in the North Bay, flooding in Union City, and urban heat in San Jose. Anissa Foster takes us on a revealing virtual tour.

How Far Can Metro Harbors Go on Nature-Based Shore Protection?

Typical flood protections rely on engineered structures. But there’s a new push at the national level of the US Army Corps of Engineers to prioritize working with nature. Storm surge plans currently underway in New York, Miami and San Francisco highlight a range of nature-based fixes.

Storm Surge Resilience Jigsaw Confounds New York

An Army Corps storm surge and flood plan for the New-York-New Jersey waterfront, now going through a public comment period, could be the most far-reaching coastal resilience project the region has seen thus far. The preferred alternative, however, is leaving advocates and community groups questioning if all the pieces will ever fit together.

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