Dear Surfriders and Friends,
Below is our official comment submitted to SFPUC last week regarding the wastewater infraestructure at Sloat.
July 27, 2010
SF Public Utilities Commission
1155 Market St., 11th floor
San Francisco CA, 94103
ph: (415) 554-3155
RE: Item to be added to the 5 year CIP
Surfrider San Francisco, Save the Waves Coalition, and our engineering consultants at Phillip Williams and Associates would like to share with SFPUC our view of the Lake Merced Transport Tunnel in the south of Sloat area.
Since the mid 1990s, 3 significant and costly rock armoring projects have been installed in an effort to protect Sloat's wastewater infrastructure from coastal erosion. These projects may have worked temporarily to safeguard City assets, but ultimately the threat of erosion has continued - and is projected to continue.
The erosion problems in the South Sloat area have been going on for nearly 20 years, when the area was filled to create parking and the Great Highway Extension. Photographs and maps document that the Funston Bluffs, to the south, have been eroding since before the 1850’s, when the first scaled coast survey was accomplished. Combined with predicted rise in sea levels, we believe The City will add more rock or other armoring in the future. We believe this not within our collective interest. Expensive coastal armoring cannot permanently halt the advance of the Pacific Ocean. Eventually, infrastructure will have to be moved. We hope that SFPUC agrees with this view, and will thereby plan for a sustainable future – one that is consistent with State guidance on adaptation to sea level rise.
Presently, the beach in the South of Sloat area is an unmitigated disaster. Unearthed construction rubble covers the shoreline interspersed with the aforementioned rock armoring. Just over a decade ago, there was enough sandy beach in this area for people to enjoy putting out a towel, fishing, or flying a kite. Now, there is only a small sliver of sand left - one that is not safe to access, inappropriate for public recreation and ecologically degraded.
For these reasons, Surfrider Foundation, San Francisco Chapter and Save the Waves Coalition would like to recommend that PUC begin planning for a reconfiguration and/or re-routing of the Lake Merced Transport Tunnel at South Sloat: Our organizations suggest that such an initiative be included in the current Sewer System Master Plan's 5 Year CIP.
Surfrider Foundation, San Francisco Chapter
Environmental Director, Save the Waves Coalition
Bob Battalio, PE
Phillip Williams and Associates
Our Vision of Beach Restoration and Preservation
The shorelines of Ocean Beach south of Sloat Blvd and Sharp Park in Pacifica are threatened by rip-rap seawallls and long-term erosion. This blog chronicles our campaign efforts to restore these beaches. Check out the web view of this site to see our proposed solutions and how to help- in the right hand column below. For all the latest about our efforts, see our monthly posts.
We advocate a managed retreat strategy to restore both Ocean Beach south of Sloat and Sharp Park.
At Sloat, our vision involves:
A long-term plan to relocate threatened infrastructure
(including the south of Sloat Great Highway, the two oceanside parking lots and the sewer lines underneath them).
The cleanup of all the rock and rubble littering the beach.
The use of sand dunes as the primary tool to slow erosion.
For Sharp Park, we advocate the decommissioning of the golf course, the removal of the rip-rap berm, and a full restoration of the wetland.