Summary

Introduction
IMG_0977
Purpose of project

Other

Mature Eucalyptus trees are threatened by imposed level changes of half a metre. Aeration beds are installed to prevent root suffocation.

Installation type

Other

Rock filled aeration beds

Tree planting date

NA

Tree species

Eucalyptus capitellata, Corymbia gummifera, Lophostemon confertus (Brown Stringybark, Red Bloodwood, Brushbox)
Botanical name (Common name)

Number of Trees Planted
Tree Stock Size at Planting

Other

Number of Trees Surviving
Survival Assessment Date

March 2020

Features
Owner of Site

Lake Macquarie City Council

Contact Details

Contact Name

Graham Prichard

Contact Phone

0401032430

Contact Email

Location Details

Location Address

Bernie Goodwin reserve, Morrisett, NSW

Suburban park

Council/LGA

Lake Macquarie city Council

Technical Detail

If you require details not available here, see contact details.

Case Study Description

Existing mature trees, with habitat values enhanced due to roosting and nesting Spoonbills.

Threatened by playground construction works, which identified asbestos contamination.

Required to fill entire site by 500mm to encapsulate asbestos affected soil.

Management decided to save trees rather than remove/replace.

 

Design &/or as constructed detail

Sandstone block lined beds, with matrix of aeration tubes covered with 500mm of 90-200mm sandstone. Surrounding areas filled with compacted soil to 500mm. Geofabric layer over native soil to encapsulate asbestos contamination, followed by aeration pipe matrix, covered with geofabric layer, covered with 500mm depth of sandstone rock.

Depth of Engineered Space

.5

Volume of Engineered Space

various

Drainage Type

subsoil perforated plastic piping

Drainage Type Resource/Image/Document
Surface Treatment
Growing Media Detail

Native soil undisturbed

Surrounding Site Soil Detail

All areas surrounding the aeration beds have been raised .5m and a playground/hard surfaces installed

Surrounding site soil detail Resource/Image/Document
Watering Regime

None

Maintenance Detail

Leaf blower to remove surface debris

Aeration pipes with numerous inspection points

Non-Technical Detail

Challenges Overcome

Installation quality control

Stakeholder Feedback

Positive

Stakeholder Support for future projects of this kind

Yes

Funding Source

1

Project Cost

Not yet determined. This project sourced ‘waste”sandstone for minimal cost.

1

Partners/Sponsors Information