Molonglo Stage 2 Infrastructure Planning
Tony Connell Brown Consultingi k AC G S
Planning
Patrick Paynter ACT Government ESDDMisha Beljic ACT Government ESDD
27 July 201127 July 2011
f t i bilitfocus on sustainability • 60,000 people within 15km of , p p
City centre• Encourage public transport use
with fast and frequent service• Efficient traffic network• Transit-oriented development• Pedestrian and child friendly• Water saving measures• Stormwater reuse for irrigation
and ponds• Environmental protection• Changes to the Territory Plan to
establish ‘solar fence’ principle.
stagingg gDevelopment in three stages:
Stage 1 (current) Stage 1 (current)- first suburbs in Molonglo Valley - Coombs, Wright and North Weston
St 2 (5 10 )• Stage 2 (5-10 years)- planning and engineering investigations have commenced
Stage 3 (10 years+)- last area to be developed.
Environmental investigationsEnvironmental investigations•Pink tailed worm lizard
(aprasia parapulchella)
•Raptors and parrot species
B G W dl d•Box Gum Woodland
•Natural Temperate Grassland
•Riparian habitatRiparian habitat
•Bush fire protection and mitigation
•European and Aboriginal heritage
•Soil contamination and geotechnical conditions
•Water management, water quality and environmental flows
T it d C lth bli ti (EIS EPBC R f l/SA)•Territory and Commonwealth obligations (EIS, EPBC =- Referral/SA)
Infrastructure implementation processes(concurrent with planning and environmental processes)(concurrent with planning and environmental processes)
• Pre‐feasibility investigations – planning and scheme options analysis• Feasibility studies – options, technical detail, costs, recommendations• Environmental assessments – ecology, heritage, soils, water – EIA/EIS/EPBC• Funding identification and business cases – Capital Works• Design and documentation – Development Application, Detailed design,
tender documentation.• Construction stage and handover/commissioning• Operation and maintenance.
Organisations implementing and consulted• Government – ESDD (ACTPLA and DECCEW), TAMSD, EDD (LAPS), LDA, ( ), , ( ), ,
Treasury, NCA, DEWHA, other• Non‐government – ACTEW, ActewAGL‐ water, sewer, energy, Jemena, Telstra,
focused community consultation
Stormwater Management• Numerous options for stormwater• Numerous options for stormwater
management have been evaluated
• A number of options from a large lake to smaller lakes and off line ponds have beensmaller lakes and off-line ponds have been investigated
• These options have been investigated using a TBL approach with agencies anda TBL approach with agencies and environmental group representatives
Topography and Slope AssessmentTopography and Slope Assessment
• Elevation approximately 600 AHD600m AHD
d f l• Terrain comprised of low hills to undulating slopes with isolated moderatelywith isolated moderately inclined rolling hills
Site GeologySite Geology• Geology:Geology:
– Site located within the Mount Painter Volcanics forming part of the Hawkins Volcanic Suite
– Rock masses (dacite, rhyodacite)– Soil (types of soil)– Tectonics (faults and seismicity)Tectonics (faults and seismicity) – Hydrogeology (connectivity, yields
and groundwater quality)
• Geotechnical propertiesGeotechnical properties – Seven Soil Types – Excavation conditions
Use of material on site– Use of material on site– Slope, cut/fill batter slope stability
Contaminated SitesContaminated Sites
C t i ti i ti ti• Contamination investigations– ESA Phase 1– Areas of Environmental Concerns – Types of contaminants (potential
hydrocarbon associated with refuelling vehicles, potential heavy metals potential asbestosmetals, potential asbestos contaminated waste , pesticides etc0
• Future InvestigationsFuture Investigations– Contaminated site auditor– ESA Phase 2 investigations– Remedial Action Plan– Remedial Action Plan– Remediation
Molonglo Major Roads Previous Studies
The arterial roads delivery to minimise:· energy usage and emissions· noise generation· impact on flora and fauna· visual impact and earthworks· construction cost
Impact on surrounding road networkImpact on surrounding road network• Duplication of Cotter Road east of Tuggeranong Parkway between
considering an upgrade of the Yarra Glen interchange
• Traffic growth on Coppins Crossing Road causing increased traffic and congestion on Coulter Drive. Peak hour traffic congestion on Coulter Drive may lead to a strategic decision to duplicate Coulter Drive.
• The early construction of the Bindubi Street extension through to John Gorton Drive would delay the need for upgrading Coulter Drive, but would hasten the need to duplicate Bindubi Street.
2031 t ffi f t t th t b th C lt D i d Bi d bi• 2031 traffic forecasts suggest that both Coulter Drive and BindubiStreet will need to be duplicated in the longer‐term
• Widening Parkes Way and improving the operation of the BundubiStreet / William Hovell Drive intersection.
• Traffic growth on Streeton Drive, particularly prior to 2021, should be managed to contain the use of Heysen Street.
Molonglo 2 Road Network Considerations
PDF Consulting Consortium 2011g
AECOM 2010AECOM 2010
Molonglo 2 Arterial Roads by 2013 14Molonglo 2 Arterial Roads by 2013‐14
M l l 2 PDF• Molonglo 2 PDF Arterial Road Delivery to support the first land releases
Traffic Generation and Distribution
Molonglo 2 Transport Modelling
Major Roads Typical Cross Sections
Public Transport Concept
M l l St 2 Pl i B k d AECOM 2010Molonglo Stage 2 Planning Background AECOM 2010
Molonglo PT Strategy StudiesMolonglo PT Strategy Studies
PDF Study 2011ACT Strategic Public Transport Network Plan, MCR for TAMSD
Cycling Pedestrian and Equestrian Provisions
Molonglo 2 Acoustic Assessment Traffic NoiseTreatment options:
•Setback distance
•At source (various pavement options)
•Treatments to dwellings including upgraded external walls soundratedupgraded external walls, soundratedglazing, building orientation (to allow for quiet balconies and formal external open spaces)
Molonglo Stage 2
Presenter Tony ConnellPresenter: Tony Connell
Molonglo Stage 2 g g
Pl i D i F k (PDF)Planning Design Framework (PDF)Hydraulic Master Plan & Concept DesignHydraulic Master Plan & Concept Design
For Environment & Sustainable Development Directorate (ESDD)
PDF Project TeamPDF Project Team
Introduction
• Project Locality• Site Context• Development Layouts • Hydraulic Services Master Plans• Cycle/Recreation Routes
Project Locality
• Land Area: 500ha • Predominantly north facing• Predominantly north facing
but undulating• Significant frontage toSignificant frontage to
Molonglo River• Environmental sensitiveEnvironmental sensitive
area
Slope Analysis
• Half of land > 10% slope• Only 23 ha < 5% slope
Ecological Features
Constraints Analysis
Bushfire Management
Development Layout
First 3,000 Dwellings
Master Plans ‐ Stormwater
Master Plans – Stormwater WSUD Compliant with ACT Waterways Code (WSUD) for stormwater
li k fl i i kquality targets, peak flow attenuation, rainwater tank provisions, etc.
Based on awhole of site approach Based on a whole of site approach Using a stormwater quality treatment chain approach All f t t h ti d (i i ti f Allows for stormwater harvesting and reuse (irrigation of
public open spaces primarily) Meet the ACT Stormwater Quality Regional Targets Meet the ACT Stormwater Quality Regional Targets
Master Plans – Stormwater WSUD
T iTerrain too steepSWALEROOFS
GPT BIORETENTION BASINS
STORMWATER QUALITY
CONTROL POND
Master Plans ‐ Sewer
Master Plans – Sewer Bridge Options
Master Plans – Water
Cycle/Recreation Route
Questions:Questions: