Trinity Valley Drainage Upgrade Stages 2 & 3
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Trinity Valley Drainage Upgrade Stages 2 & 3
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Category: Stormwater drainage network
Project management
Managed by City of Norwood Payneham & St Peters
Design: Stantec Australia
Contractor: BMD
Trinity Valley Drainage Upgrade
The Trinity Valley Drainage Upgrade involves installation of a new stormwater drainage network in the suburbs of St Morris, Trinity Gardens, Maylands, and Stepney (known collectively as the ‘Trinity Valley’).
The upgrade project includes installation of a new underground drainage network and stormwater detention basin at the St Morris reserve, to reduce the risk of flooding within the catchment area during significant rainfall events.
The works are designed to:
- increase capacity of stormwater infrastructure
- alleviate future flooding where possible
- protect dwellings from future one in-100-year stormwater events
- utilise Council reserves to act as detention areas
- address upstream flooding to reduce pressure on downstream system.
Project details
The Stage 2 Stormwater upgrade will be undertaken along Albermarle Ave and Ashbrook Ave, Trinity Gardens. The works include installation of large culverts, pipes and pits within the roadway, followed by a full depth pavement reconstruction.
Works on Stage 2 are scheduled to commence in October 2023 and be completed in May 2024.
The Stage 3 Stormwater upgrade will be undertaken along Jones Ave and Amherst Ave adjacent the Trinity Gardens Primary School.
The works include installation of large culverts, pipes and pits within the roadway, followed by a full depth pavement reconstruction on Jones Ave. Works on Stage 3 are scheduled to commence in December 2023 and be completed in January 2024 during the school holiday period.
View a map of Stage 2 & 3 works areas:
Project funding
The Federal Government is contributing $9.9 million as part of its Preparing Australian Communities Program, which targets projects that improve resilience against natural disasters.
The investment is being matched dollar by dollar by the Council, resulting in a near $20 million investment to reduce the risk of flooding.
Timeframe
The upgrade works will be completed over three years in the following order:
- Stage 2 & 3: October 2023 – May 2024
- Stage 4: November 2023 – April 2024
- Stage 1: August 2024 – January 2025
Project background
The upgrades to stormwater drainage infrastructure stems from the City-wide floodplain mapping project which identified locations which are at risk from flooding and considers a range of future scenarios, including infill development and the ongoing impacts of climate change.
Cost
Trinity Valley Drainage Upgrade – Estimated $20,000,000
Project Contact
Contact Michael Moshos
Contact role Project Manager, Civil
Phone 08 8366 4571
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