Ocean Beach Sand Backpass Project Relocating Sand from N Ocean Beach to Erosion Hotspot S Ocean Beach

A collaborative project between the National Park Service and the

City and County of San Francisco

July 17, 2012

National Park Serviceand

City and County of San Francisco

(San Francisco Public Utilities Commission / Department of Public Works)

Ocean Beach Sand Backpass Project

• Project Location

• Project Description

• Existing Conditions

• Project Goals

• Design Concept

• Approvals

• Schedule

• Contact

Information

Project Objectives

• Remove sand from in front of

the O'Shaughnessy Seawall in

order to reduce future sand

maintenance efforts;

• Maintain public access on

promenade and stairwells

that have been blocked by

sand aggredation;

• Enhance beach access in the

erosion hotspot area;

• Provide for bluff protection in

high risk areas that threaten

CCSF infrastructure;

• Reduce the need to

implement more engineered

bluff protection measures in

the short-term.

Existing Conditions

South of Sloat Area

O'Shaughnessy Seawall Area

Existing Conditions

Scope of Work

• Survey beach and define volume of

sand available and prepare final design

• Determine placement locations and

configuration of relocated sand

placement in erosion hotspot area

(End-dump plan)

• Excavate and transport approximately

100,000 + cu yds of sand from in front

of O'Shaughnessy seawall

• Create a sacrificial sand berm at the

area south of Sloat for bluff protection

for CCSF infrastructure

• Monitor sand movement both

nearshore and longshore to inform

future beach nourishment efforts

Seawall Profile

De

pa

rtme

nt o

f Pu

blic W

ork

s

Its over 13 feet

from top of

seawall to first

bleacher step

Diagram of Excavation design

Dune Design

Dune DesignSand Berm

Placement

Sand Berm

Placement

Rubble Fill

Sandbags

1996 EQR

2010 Rock

Revetment

Reviews and Approvals

1. NEPA / CEQA

2. Regulatory Approvals

• USFWS (Snowy Plover)

• California Coastal Commission (CD)

• USACE (404/401 ; Section 10)

• MTA-SF (traffic plans)

Consultation / Coordination

• California Coastal Commission

• Regional Sediment Management Group

• NPS Project Review

• Golden Gate Audubon

Schedule

Conduct Public Outreach –July

Regulatory Agency Review / Concurrence – July 13, 2012

Complete Environmental Compliance – CEQA / NEPA

Award Contract - July 20, 2012

Notice to Proceed - Late July / Early August

Project Completed – Early September 2012