3/4/2010 PROJECT BACKGROUND CANBERRA INTEGRATED Commonwealth’s Water Smart Australia Program • Assist jurisdictions to implement the National Water URBAN WATERWAYS Initiative PROJECT Canberra Integrated Urban Waterways Project Jennie Gilles $10.2 m Manager Urban Waterways Program Program timeframe: 2007 - 2011 Sustainability, Climate Change and Natural Environment Branch Target: Substitute potable water use 1.5 GL by 2011 Department of Environment, Climate Change, Energy and Water [email protected] and 3 GL by 2015 Phone: 6207 2141 PROJECT OUTCOMES PROJECT OBJECTIVES • Adopt holistic approach to project – environmental, social and Develop and implement integrated waterway economic outcomes management plans for urban catchments • Application of waterway values and objectives to integrate water sensitive urban design based measures Implementation of infrastructure to retrofit waterway • Development and refinement of relevant policies, guidelines systems will include: and procedures Detention ponds / wetlands • Reduce potable water supply by replacement with alternative Stormwater reuse sources – stormwater, recycled water (3GL target by 2015) Water quality management • Integrated water cycle model for Canberra (eWater) • Engagement, education and capacity building within the Drainage and flood management community Aquifer storage and recovery Recycled water infrastructure 1 3/4/2010 Urban Wetlands – Multiple Values CONSTRAINTS Securing adequate space to install wetlands to meet sizing requirements • Water quality improvements • Flood protection & peak flow reduction The need to avoid interfering with existing • Enhanced urban biodiversity underground services, trees, playground equipment, • Recreational & volunteering opportunities bike paths etc. • Improved property values Availability of funds for capital works projects • Improved aesthetics • Stormwater harvesting Perceptions by some members of the community - health and safety issues (child safety and mosquitoes) requires education POLICY CONTEXT TEAM – Whole of Government Think water, act water – Targets Department of Environment Climate Change Energy and • Potable water reduction target – 25% by 2023 • Nutrients and sediments (rural catchment) Water (DECCEW) • Peak flow reduction (pre development) ACT Planning and Land Authority (ACTPLA) Territory and Municipal Services (TaMS) Where Will We Play Strategy – Sport and Recreation Services • “By 2013 no sportsground will be solely reliable on potable water to guarantee sporting operation” – Parks Conservation and Lands (PCL) – Roads ACT Parliamentary Agreement Department of Education and Training (DET) • Accelerate replacement of concrete channels with wetlands Chief Minister’s Department (CMD) Sustainability in Molonglo • Department of Treasury ACT Procurement Solutions 2 3/4/2010 TWO PHASE FEASIBILITY STUDY CSIRO PHASE 1: Strategic Planning - CSIRO Study Master Plan • Identify spatial locations for available stormwater for harvesting • Identify potential users of alternative water sources 85-95% • Evaluate economic costs and benefits of options – supply reliability (least cost planning) volumetric • Integrated physical water system modelling to understand reliability supply and demand options – environmental flow requirement, water quality, ecological impacts of drawdown • Identify potable water savings for each harvesting option Least cost • Evaluate social acceptance of options • Triple bottom line TWO PHASE FEASIBILITY STUDY Master Plan Select Pilot Projects Results PHASE 2: Engineering Feasibility Design Yarralumla Preliminary Design Catchment Cost estimates End user consultation Detailed Design / Approvals Final Design and costs 2010 Construction 2010-2011 3 3/4/2010 Flemington Road PILOT PROJECTS Ponds Mitchell Inner North Stormwater Harvesting System • Flemington Road Ponds • Dickson and Lyneham Ponds Weston Creek and Molonglo Stormwater Harvesting System • North Weston Pond • Coombs Ponds Tuggeranong Stormwater Harvesting System • Lake Tuggeranong • Tuggeranong Weir • Isabella Pond • Stranger Pond Flemington Road Pond - September 2009 Lyneham Pond – Goodwin Street 4 3/4/2010 Dickson Pond – Hawdon Street Inner North Reticulation Weston Creek & Molonglo Reticulation EXISTING LAKES AND PONDS Design of reticulation infrastructure from major existing lakes and ponds • Lake Ginninderra • West Belconnen Pond • Gungahlin Pond • Yerrabi Pond • Dunlop Ponds 5 3/4/2010 Concrete Lined Channels David St Wetland, O’Connor Before wetland construction (southern view) O’Connor Tributary meets main channel David St Wetland, O’Connor David St Wetland, O’Connor After wetland construction (southern view) During wetland construction – excavation (southern view) 6 3/4/2010 David St Wetland, O’Connor David Street Wetland, O’Connor During wetland construction – starting to fill (southern view) Volunteer planting during landscaping phase David Street Wetland, O’Connor David Street Wetland, O’Connor Volunteers planting during landscaping phase Volunteers planting during landscaping phase 7 3/4/2010 David Street Wetland, O’Connor David Street Wetland, O’Connor Completion of landscaping phase City Edge Apartments under construction (Western view) 2001 Banksia Street Wetland O’Connor 2010 Volunteering & educational opportunities – Banksia St Wetland Carers Planting wetland, grasses & shrub species – Maintaining wetland plantings (ongoing) – watering, weeding, mulching & replanting Water quality monitoring through Waterwatch Bird & frog ID & reporting 8 3/4/2010 The old pond Frog jumps in Sound of water WETLANDS FOR OUR SUBURBS 9.