Gasworks Arts Park Reference Committee Meeting 5

18/09/2013

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agenda

Purpose of this meeting • Confirm vision and principles

• Present and discuss 2 concept plans

• Soil remediation impacts

• Discuss and identify priorities for implementation

• Look at the structure and content of the Draft Park Plan

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Gasworks Arts Park is a green oasis in the urban setting

where the past is celebrated, the future is anticipated and

our culture has a living presence.

vision statement

Gasworks Arts Park Draft Vision

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1. Promote the development of an accessible vibrant community hub.

2. Respect and celebrate the park’s story.

3. Support the expression of arts and culture within the park.

4. Create a range of landscape zones that support a variety of experiences and activities.

5. Develop and manage the park in a safe, sustainable, and inclusive manner.

guiding principles

DRAFT GUIDING PRINCIPLES

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Vehicle access into the park – impact to design of park

Considerations

1. Pedestrian safety

2. Vehicle movement maintenance impact within the park

3. Vehicle impact on surrounding streets

4. Heritage considerations

5. Access for Gasworks theatre and market

6. Impact on future location of playground

7. Planning considerations

8. Traffic considerations and technical constraints

9. Impact on design of soil remediation works Vehicle access 7

Vehicle access options

Pros• Vehicles constrained to one end of the park • Reduces pedestrian conflict through the park• Eliminates trucks on Foote and Richardson Street.• Removes pedestrian conflict at Café• Minimises cut zone for soil capping/remediationCons• New vehicle crossing point

Option 1

Option 2

Vehicle access8

Pros• Vehicles constrained to one end of the park • Reduces pedestrian conflict through the park• Eliminates trucks on Foote and Richardson Street.• Location of play space is flexible Cons• Vehicles move beside the café where there is a

high concentration of pedestrians.• New vehicle crossing point

Cons• Vehicles drive through park increasing rick of conflict

with pedestrians• More remediation/ maintenance of grassed surfaces

and edges.• Trucks on Richardson Street

Pros• Vehicles constrained to one end of the park – easier

to manage.• Reduces pedestrian conflict through the north east

end of parkCons• Increased conflict point at Foote Street and along

access route• Increases truck traffic onto Foote and Richardson

Streets.• Potential conflict with play ground location

Option 3

Option 4

Vehicle access options

Vehicle access9

Concept plans

Concept plan 1 – Play space option A

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Concept plans

Concept plan 1 - access

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Concept plans

Concept plan 1 – significant trees

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Concept plans

Concept plan 1 – art

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Concept plans

Concept plan 1 – market

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Concept plan 2- Play space option B

Concept plans 16

Concept plan 2- access

Concept plans 17

Concept plan 2- significant trees

Concept plans 18

Concept plan 2- art

Concept plans 19

Concept plan 2- market

Concept plans 20

Impact to park and responsibilities

Soil remediation – impact to design of park

Priorities, responsibilities and considerations

1. Councils first priority is to ensure a safe place for the community.

2. Council needs to ensure that the future management and

maintenance of the park will be clearly defined and managed.

3. Council will prioritise returning the park after remediation works in a state that maintains its current functionality

capping options 22

1. Capping of half a metre of clean soil on top of contaminated soil (mounding)

2. Removing half a metre of contaminated soil and replacing it with half a metre soil (cut and fill)

3. Geofabric layer covered with lesser thickness of clean soil

4. Capping contaminated soil with hard paving/impervious surfaces

5. Interventions that cause a separation of the soil from users. (eg boardwalks/ fencing)

CAPPING OPTIONS

capping options 23

1. Capping with half a metre of soil

capping options

Benefits Challenges Good separation from contaminated soil Changed ground levels

Can plant trees anywhere Need to remove existing trees

Reduce ongoing management

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2. Cut and fill

capping options

Benefits Challenges Good separation from contamination Ongoing management

New landscape features Limited vegetation

Maintains levels to connect with surrounding infrastructure

Identify contaminated soil retention areas

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3. Geo-fabric layer

capping options

Benefits Challenges Good separation with contamination Limited vegetation

Reduced level change Ongoing management

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4. Hard paving

capping options

Benefits Challenges Solid separation with contamination Hard surface - concrete

Low ongoing maintenance and management Contributes to Urban Heat Island Effect

Connects with buildings of park

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5. Boardwalks and fencing

capping options

Benefits Challenges Retain existing large vegetation Infrastructure intensive - $$

Good separation from contamination May impact vegetation

Landscape feature Ongoing management – what happens when the tree dies?

No guarantee of vegetation survival

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Soil remediation methods – benefits summary Capping contaminated soil with 500 mm of clean soil

Removing 500 mm of contaminated soil and replacing it with 500 mm clean soil

Geofabric layer covered with a lesser thickness of clean soil

Capping contaminated soil with hard paving/impervious surfaces

Interventions that cause a separation of the soil from users. (eg boardwalks/ fencing)

Benefits •Good separation from contaminated soil •Can plant new trees anywhere •Reduce ongoing management

•Good separation from contamination •Maintains levels with surroundings •Reduce ongoing management •Limited vegetation •New landscape features

•Good separation with contamination •Minimised level change •Some trees can be retained

•Solid separation from contamination •Low management impact •Low maintenance of surfaces •Provides interfaces to buildings

•Retain existing large vegetation •Good separation from contamination •Landscape feature •May impact vegetation

Constraints/ drawback

•Need to remove existing trees/ vegetation •Changed ground levels

•Relocate on-site contaminated soil retention areas •Need to remove existing trees/ vegetation

•Create pockets of contamination when trees die •Vegetation roots may penetrate fabric •Difficult to establish new vegetation •No guarantee of existing vegetation survival

•Contributes to Urban Heat Island Effect •Impacts the character of the park if used moderately-extensively

•Significant cost implication •Significant maintenance and management implications •Create pockets of contamination when trees die •No guarantee of vegetation survival •May impact park character

capping options 29

The park will be significantly impacted by capping works. The major impacts will include: •Vegetation loss through changes to soil around root structures.

•Increased mounding within the site due to capping and through maintaining existing levels at egress and access points.

•Removal of vegetation.

Soil remediation – Major impacts on the park

Soil remediation 30

Mitigation options Vegetation loss through changes to soil around root structures

Increased mounding within the site due to capping and through maintaining existing levels at egress and access points

Removal of vegetation

Mitigation strategy

Retain significant trees through other separation interventions

This impact is unavoidable as it is critical to maintain these access points

Replace vegetation as part of first phase of enhancement works.

Options This option could involve building fences or structures such as board walks around trees

N/A Use larger plant stock at key points

Benefits Retains significant trees that provide major amenity and cultural value for the park. Provides new uses and features for the park

Constraints/ drawback

•Significant cost implication •Significant maintenance and management implications •Create pockets of contamination when trees die •No guarantee of vegetation survival •May impact park character

Soil remediation 31

Priority/responsibility • Councils first priority is to

ensure a safe place for the community.

• Council needs to ensure that the future management and maintenance of the park will be clearly defined and managed.

• Council will prioritise returning the park after remediation works in a state that maintains its current functionality

Recommendation 1. Recommend removal and

replacement all existing vegetation and implement best practice capping techniques.

2. An increased risk of contamination being unsafely managed provides an unfavourable option.

3. The impact on cost, maintenance and management of boardwalks and other interventions challenges Councils ability to fund the remediation and delivery of the park.

Soil remediation 32

Implementation

IMPLEMENTATION – next steps

Item

Wall bracing and monitoring (in progress)

Detailed investigation and design and tendering of works

Removal of furniture, vegetation and other elements to enable soil remediation works

Earthworks and soil remediation

Foundations and service trenching locations

Building of paths, pavements, trees, garden beds and grassed areas

Council will endeavour to return the park to its current functionality, with enhancement of areas over time.

implementation 34

Priorities for implementation Stage 1

1. Paths, grassed surfaces, garden beds, trees • The structure of the park will be implemented immediately, including

paths, access and egress points, trees and surfaces.

2. Furniture – seating, bins • Adequate seating and bins will be provided to meet the functional

requirement of the park.

3. Lighting • Initial implementation of lighting to meet key safety requirements

implementation 35

1. Executive Summary 2. Introduction 3. Vision for Gasworks Park 4. Context 5. Consultation 6. Site Analysis 7. Opportunities and constraints 8. Concept Plan(s) – to be replaced with the

endorsed Park Plan 9. Implementation/next steps

Draft Park Plan

DRAFT PARK PLAN - STRUCTURE

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Executive Summary Summarise the content of the Parks Plan Introduction Will introduce the purpose of a parks plan and will outline the process undertaken to develop the Gasworks Art Park Vision for Gasworks Art Park Will outline the vision and guiding principles for the development and planning of the park. Will relate the vision to key Council policy and strategies Context Gives a picture of the evolution of the park to the present day Consultation Outlines the process and key findings of consultation with the community Site Analysis Steps though analysis of the site Opportunities and constraints Illustrates the opportunities and constraints Concepts Plans/Park Plan Details the concept/design of the park Implementation/next steps Recommends priorities and processes for implementation and development of the park over time.

Draft Park Plan 38

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ACTIVITY DESCRIPTION Date

Community update • Inform community of soil investigation outcomes. 31 May

Finalise Audit and obtain agreement on process for remediation.

• Council to finalise Audit with EPA, Victoria sign-off on draft Remediation Action Plan (RAP).

• Council to continue to work with State Government to develop an implementation plan to remediate the site.

Ongoing

Reference Committee Meeting No.3

• Develop vision and guiding principles for park.

• Results of the SWAT Analysis.

• Discuss zones of use – workshop ideas.

3 July, 2013

Reference Committee Meeting No.4

• Confirm vision and guiding principles.

• Present initial sketch plans.

• Workshop sketch plans – identify opportunities and constraints.

7 August, 2013

Reference Committee Meeting No.5

• Present concept plans prior to community feedback – gain direction on preferred concept.

• Discuss priorities for the implementation plan.

• Present draft park plan.

18 Sept, 2013

Community consultation

• Opportunity for community feedback on the draft park plan, including the concept plans and implementation plan.

Nov to January

Reference Committee Meeting No.6

• Present results of community consultation.

• Discuss final changes required for plan.

5 February 2014

Reference Committee Meeting No.7

• Final review of draft park plan prior to adoption 5 March, 2014

NEXT STEPS

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