A Beach Nourishment Opportunity
Beach Erosion Authority for Clean Oceans and Nourishment
Sequence of Events
- Thomas Fire – December 2017
- Montecito Debris Flows – january 9, 2018
- Perhaps 500,000 cy made it to the beach
- About 70,000 cy deposited on public streets & flood control channels
- About 400,000 cy deposited in local debris basins
- Perhaps 1,000,000 cy deposited on private property
- Aftermath
- Street & f/c channel sediment taken to Goleta & Carpinteria Beaches
- Debris basin sediment taken to Buellton & Santa Paula landfills
- Private property sediment remains in place
What Does Debris Flow Look Like?
Montecito Debris Flows Stats
- 25 people killed
- Over 100 homes destroyed & more than 300 damaged
- Widespread damage to property & infrastructure
- About 2M cy of sediment released from foothills
- Sediment mostly composed of sand (80%) along with rocks, logs, etc.
- Sediment largely uncontaminated
Impact to Beaches
- Sediment sorted rapidly by waves with finer material moving offshore & coarser material onshore
- Rocks & boulders deposited at creek mouths – logs & other floating debris scattered along coast
- Nearby beaches grew wider – new sand blended in well with existing
- Trucked sediment at Carpinteria & Goleta Beaches had similar effects
- Water quality impacts significant but short-term
Fernald Point – April 2017
Fernald Point – January 2018
Fernald Point – February 2018
Loon Point – April 2017
Loon Point – January 2018
Loon Point – March 2018
Carpinteria Beach – April 2017
Carpinteria Beach – January 2018
Carpinteria Beach – March 2018
Goleta Beach – June 2017
Goleta Beach – January 2018
Goleta Beach – February 2018
Goleta Beach – March 2018
Predicted Shoreline Response
Unique Opportunity for Beach Nourishment
- Large volume of sediment available on private property
- Significant benefit if sediment taken to beaches
- Sediment must be sorted & stored for placement in Winter/Spring
- Comprehensive SCCBEP-type program needed to:
- Establish sorting/storage areas
- Identify beach receiver sites
- Establish testing, placement & monitoring protocols
- Secure environmental permits
- Identify/develop funding mechanism
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