Purpose of project


Streetscape renewal and enhancement

Installation type

Load-bearing cells

Tree planting date

May 2017

Tree species

Tristaniopsis laurina (Water Gum)
Botanical name (Common name)

Number of Trees Planted


Tree Stock Size at Planting

100+ or ex-ground

Number of Trees Surviving


Survival Assessment Date
Owner of Site

City of Adelaide

Contact Details

Contact Name

Stuart Pope

Contact Phone

8203 7203

Contact Email

Location Details

Location Address

Russell Street Adelaide

Russell Street Adelaide


City of Adelaide

Technical Detail

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

Case Study Description
Depth of Engineered Space
Volume of Engineered Space

Approx 2 cubic metres per tree

Drainage Type

Passive irrigation through kerb and watertable – no additional underdrainage provided. Irrigation was not included into the design.

Drainage Type Resource/Image/Document
Surface Treatment
Growing Media Detail
1.   SOIL MIX 

The specified soil mix as shown on the drawings is detailed at Schedule 3.1:

Schedule 3.1 – Soil Mix Register


Soil 90/10 sandy loam
Additive 1 Sieved (minus 6mm) organic compost
Additive 2 Triabon slow-release fertiliser

(available in 25kg bags)

Additive 3 Manganese sulphate

 Soil depths

The soil mix is to be placed in the Stratacell as follows:

Top 300mm – 90/10 sandy loam with Additives 1,2 and 3

Below 300mm to subgrade level: 90/10 sandy loam soil only


 Additives shall be carefully measure and mixed with soil to achieve an evenly mixed, amended soil for placement in the uppermost 300mm of the installation. Additives shall be as per Schedule 3.2. Prior to incorporation of this mixture the Contractor shall provide a sample and testing results for the Principals approval.

Schedule 3.2 – Additives Schedule


Additive Name Rate
Additive 1 Sieved (minus 6mm) organic compost 1 part compost to 5 parts soil
Additive 2 Triabon slow-release fertiliser 1.5kg per cubic metre
Additive 3 Manganese sulphate 80g per cubic metre






Surrounding Site Soil Detail

No Geotech taken

Surrounding site soil detail Resource/Image/Document
Watering Regime
Maintenance Detail

Non-Technical Detail

Challenges Overcome

Satisfying pavement engineering standards

Stakeholder Feedback


Stakeholder Support for future projects of this kind


Funding Source


Project Cost

$7,500 per tree supply and install – excludes ongoing maintenance costs


Partners/Sponsors Information

City of Adelaide