and restoration of Port River and Barker Inlet Estuary Presentation - - PowerPoint PPT Presentation
and restoration of Port River and Barker Inlet Estuary Presentation - - PowerPoint PPT Presentation
Living Shorelines and restoration of Port River and Barker Inlet Estuary Presentation to Port Adelaide U3A 29 th August 2017 Catherine McMahon, Estuary Care Foundation Port River and Barker Inlet Estuary Aerial view photo 2008 by Gary
Port River and Barker Inlet Estuary
Aerial view photo 2008 by Gary Sauer-Thompson
Ecosystem services
Nature-based solutions
- Nature based solutions can lessen the
impact of sea level rise and be used instead
- f or in conjunction with hard structures
- Pollution into the Port River has lessened,
making nature based solutions more viable
- Restoration of the Estuary is the focus of
the Estuary Care Foundation SA, formed in 2016
US model of restoration
www.cbf.org July 2016
Nature-based solutions Key priorities of the Foundation
- Living Shorelines
- Shellfish Restoration
- Seagrass Restoration
- Community education and
engagement
What the future holds
AdaptWest, regional climate adaptation plan
What the future holds
Living Shorelines
- Eco-engineering
- Environmentally friendly sea
walls (NSW)
- Coastal Resilience (USA)
USA – Coastal Resilience
http://coastalresilience.org hosted by The Nature Conservancy (TNC)
Living Shorelines
- shoreline protection options
- offer erosion control benefits
- natural coastal processes remain
- strategically place plants, stone,
sand fill and other materials
USA experience
How cost effective is natural infrastructure?
The Nature Conservancy
13
Examples of Living Shorelines
This living shoreline replaced a failing bulkhead at a state boat ramp on the Chowan River, North Carolina (Source: Coastal Review Online)
Examples of Living Shorelines
Avon River Environment Association (Canada) building a Living Shoreline 2010
Example of Living Shoreline, NSW
Carss bush park seawall with rockpools, extended slope, crevices, endangered saltmarsh, Kogarah Council 2016
Living Shoreline – Port River
Drawings: Peri Coleman 2015
Mangroves protect our shoreline
Mangroves protect our shoreline
Mangroves protect our shoreline
Protecting the mangroves
Info by Peri Coleman
Shaping our landscape
Port waterfront in early 19th Century
Shaping our landscape
Nature of our landscape
Northern LeFevre Peninsula sketch map B.C. Cotton 1954
Levee bank breached at Mutton Cove
9th May 2016, anticipated 2.7m tide recorded at 3.9m at OH
Mutton Cove after the breach
Photograph Sept 14th 2016, approx 2.2m tide
2016 flooding with high tide
Portside Messenger: Flooding near Birkenhead Bridge, May 2016
Further development
Areas for Port redevelopment
Inadequate shoreline protection
Raised buildings and eroding seawall, NewPort Quays
Shoreline protection needed
Trialling Living Shorelines
- Desirably in Inner Harbour
- National Disaster Resilience
Program application by Foundation
- State Government funding to
support urban renewal
Seagrass Restoration
https://www.youtube.com/watch?v=JaJG-xQJrvY
Seagrass in Port River
Zostera in Port River; photo by Kym Murphy
Little Ravens walking on Zostera, northern end of Mutton Cove, low tide, 27 October 2015; photo by Kym Murphy
SARDI 2014
Zostera near Quarantine Station, Torrens Island, Feb 2017; photo by Peter Carter
Seagrass around remains of Dorothy H Sterling; photo by Steve Duncan