Tuesday, May 3, 2011
The original Strategic Relocation vision from the Ocean Beach Task Force 2002: Courtesy of Brad Evans and Bob Battalio of Phillips Williams and Associates.
Information courtesy of Bill McLaughlin of Surfrider San Francisco
As has been done throughout the world, the City of San Francisco has been developed right up to the edge of the coastline in Ocean Beach. The bluffs have been eroding slowly over time, but early in 2010, much of California was battered by a series of powerful winter storms. Coastal erosion was widespread. At Ocean Beach, the area south of Sloat Boulevard was hit particularly hard. Up to 30 feet of sandy bluff washed away exposing large amounts of concrete debris. The southbound lane of the Great Highway was undermined and fell off the cliff onto the beach.
On January 15th a declaration of emergency was issued by the SF Department of Public Works (SFDPW) to protect City infrastructure in area. In addition to the Great Highway, a wastewater tunnel that runs underneath that road was thought to be in danger of being unearthed. Acting under emergency powers, the agency began construction of a 440 foot long wall of boulders (or rock revetment) to halt the erosion and to protect the tunnel and what remained of the road. Surfrider Foundation San Francisco Chapter and Save the Waves Coalition joined forces to oppose the revetment and have argued the need for a more sustainable long-term plan.
So now, engineers under the SPUR Master Plan and key city officials are beginning to form alternative long term plans for Sloat Erosion. The next public workshop which will offer citizens an opportunity to weigh in on this issue will be June 4. Location TBA. In the meantime Surfrider San Francisco would like to begin a deeper discussion of our preferred plan: Strategic Relocation (also known as Managed Retreat). Below is a series of links in which Strategic Relocation was used to respond to coastal erosion events in California. These three examples involve public infrastructure that was being threatened by an encroaching high tide line, as well as the need to remove fill/rubble and add sand in its place. Note the 2 local projects. Successful examples of this strategy are found in our own backyard...
MAKING THE CASE FOR STRATEGIC RELOCATION (CLICK THE LINKS BELOW):
SURFER'S POINT - Ventura, Ca:
SURFER'S POINT (PWA PROJECT WEBSITE)
SURFER'S POINT (NOAA WEBSITE)
SURFER'S POINT (SURFRIDER WEBSITE)
SURFER'S POINT (VENTURA RIVER WEBSITE)
PACIFICA STATE BEACH (Lindamar) - Pacifica, Ca
PACIFICA STATE BEACH (PWA PROJECT WEBSITE)
CRISSY FIELD - San Francisco, Ca
CRISSY FIELD (PWA PROJECT WEBSITE)
Posted by Save The Waves Coalition