TREE PROCEDURES MANUAL - Town of Walkerville Procedures... · ... \Documents and Settings\wiltho\Local Settings\Temporary Internet Files\OLK10DB\Tree Procedures Manual Dec 2011 Draft

$Page 1: TREE PROCEDURES MANUAL - Town of Walkerville Procedures... · ... \Documents and Settings\wiltho\Local Settings\Temporary Internet Files\OLK10DB\Tree Procedures Manual Dec 2011 Draft$
ADMINISTRATIVE PROCEDURE

TREE PROCEDURES MANUAL

Responsible Department Planning & Infrastructure

Related Policies Tree Policy

Original Adoption Date Discussed OHSW Team Meeting 22/12/11 – trial use commence December 2011 (pending adoption of Tree Policy by Council)

Revision Date 2013

Acknowledgement to City of Campbelltown for assistance with preparation of this document.


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C:\Documents and Settings\wiltho\Local Settings\Temporary Internet Files\OLK10DB\Tree Procedures Manual Dec 2011 Draft Trial.DOC

CONTENTS PAGE

1. TREE SELECTION

1.1 General

1.1.1 Tree List ..........................................................................................3 1.1.2 Climate Change ..............................................................................3

1.2 Specific

1.2.1 Compatibility With Infrastructure ......................................................3 1.2.2 Pest Trees .......................................................................................3 1.2.3 Selection from Tree List ...................................................................3 1.2.4 Replanting .......................................................................................4 1.2.5 Tree Form........................................................................................4 1.2.6 Heights for Major and Minor Roads .................................................4 1.2.7 Reserve Planting .............................................................................4 1.2.8 Reserve Commemorative Planting ..................................................5 1.2.9 Urban Forest ...................................................................................5

2. TREE MANAGEMENT

2.1 Record Keeping of Tree Inventory

2.1.1 Collection of Information ..................................................................5 2.1.2 Councils Responsibility ....................................................................5

2.2 Planting and Care of New Trees

2.2.1 Planting Guidelines..........................................................................5 2.2.2 Copse Planting ................................................................................7 2.2.3 Time of Planting...............................................................................7 2.2.4 Spacing ...........................................................................................7 2.2.5 Watering ..........................................................................................8 2.2.6 Pruning ............................................................................................8

2.3 General Management

2.3.1 Maintenance Guidelines ..................................................................8 2.3.2 Unhealthy Trees ............................................................................11 2.3.3 Council's Responsibility, incl Risk Assessment / Management ......11 2.3.4 Bracing, Spikes..............................................................................13 2.3.5 Vandalism/Theft.............................................................................14 2.3.6 Attachments to Trees.....................................................................14 2.3.7 Tree Protection ..............................................................................14 2.3.8 Road Construction, Trenching .......................................................14


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2.4 Pruning

2.4.1 Footpath / Road Clearances ..........................................................15 2.4.2 Overhead Services ........................................................................16 2.4.3 Signals, Signs and Street Lights ....................................................16 2.4.4 Private Property.............................................................................16 2.4.5 Pollarding ......................................................................................17 2.4.6 Frequency......................................................................................17 2.4.7 Root Barrier ...................................................................................17 2.4.8 Tree Canopy Over Main Roads .....................................................17

3. TREE REMOVAL

3.1 General

3.1.1 Criteria for Removal.......................................................................17 3.1.2 Procedure for Removal ..................................................................18

3.2 Trees on Council Land

3.2.1 Removal of Pest Trees ..................................................................18 3.2.2 Dead Trees....................................................................................19 3.2.3 Seed Collection ............................................................................ 19

APPENDICES

Appendix 1 Street Tree Plantings / Replacement Street Tree Schedule ...........20

Appendix 2 Standard Letter to Resident to Encourage Care of Street Tree ......34

Appendix 3 Planting Guidelines for Street Trees ..............................................35

Appendix 4 Deleted

Appendix 5 Guidelines for the Transportation, Handling and Disposal of

Infested or Diseased Material ........................................................36

Appendix 6 Standard Letter to Resident Informing Them of

Pest Tree Removal ........................................................................37

Appendix 7 (A) Street Tree Clearance (Minor Road) .............................................38

Appendix 7 (B) Street Tree Clearance (Major Road) ..............................................39

Appendix 8 (A) Traffic Signal Clearance.................................................................40

Appendix 8 (B) Pedestrian Crossing Signal Clearance...........................................41

Appendix 9 Department of Environment and Natural Resources Information

for Permit to Collect Native Plant Materials ....................................42

Appendix 10 Tree Evaluation..............................................................................43


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1. TREE SELECTION

1.1 GENERAL

1.1.1 Tree List

The tree species set out in Appendix 1 are those selected as being suitable for planting in roads in the Town.

1.1.2 Climate Change

Climate Change currently is a number of predicted scenarios and potentially presents a range of increasing risks to the public and to infrastructure. These include temperature extremes, severe weather events, and increased drought frequency and duration. A combination of these factors can and will present serious health risks to both people and trees. On the other side, trees are a valuable tool which Council can apply to reduce these risks. Growing trees to moderate summer temperatures, to modify wind speeds and to assist with stormwater management requires the urban environment to provide space and favourable growing conditions to achieve this and minimise the potential risks from trees.

Tree responses to predicted climate change are unknown at this stage. A major research project, the Hawkesbury Forest Experiment, is underway at the University of Western Sydney’s Hawkesbury Campus to reveal responses of plantation eucalypts to rising temperature and carbon dioxide levels. Results from this research are several years away, and it must be noted this study only looks at one species, eucalypt.

Initial observations have noted some species found within the Town have declined in health and condition, with a prevalence of pest and disease and increased number of branch failures.

1.2 SPECIFIC

1.2.1 Compatibility With Infrastructure

All selections and placements will have regard to any SA Water, ETSA Utilities and Transport SA requirements where applicable. As new species have been introduced, the service authorities may not have updated their preferred planting lists, therefore consultation will be required with the service authorities on such matters.

1.2.2 Pest Trees

The species Pinus radiata (Monterey Pine), Pinus halepensis (Aleppo Pine), Olea europaea (European Olive), Melia azedarach (White Cedar), Casuarina glauca (Swamp Sheoak), Populus nigra (Lombardy Poplar), Ulmus procera (English Elm), Salix babylonica (Weeping Willow), and Ficus (Fig) species are to be excluded from all street tree planting and their cultivation and culture is to be discouraged from all properties under the care and control of the Town of Walkerville.

1.2.3 Selection from Tree List

In selecting trees from the schedule in Appendix 1, Council should have regard to:

• the surrounding vegetation composition and any environmental or aesthetic considerations;

• their adaption and resilience to climate change factors and events


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• the purpose of the road as well as the type of construction of the road and any impact the trees might have on it, or surrounding structures;

• the impacts the proposed trees may have on any services present, above or below the ground, taking into account legislative requirements e.g. Sewerage Act 1929, Electricity Act 1996;

• the preference of the adjacent resident with regards to the tree species;

• the type of traffic using the road and potential impacts on road safety;

• the possible impacts on the safety of the public; and

• any other matters which might be pertinent to the site.

1.2.4 Replanting

In selecting trees for replanting, species selection shall be subject to the following:

• Existing street tree species provided they are approved species in the Tree List.

• Species may be varied in order to plant a tree which is the predominant species in the road.

• The species comply with service authority restrictions.

• The selection being compatible with a co-ordinated streetscape replacement programme.

• Refer Appendix 2 letter for notification to residents for tree planting.

1.2.5 Tree Form

All trees are to be characterised by a single trunk to allow future pruning for pedestrian, traffic sight distance considerations and road traffic movement.

1.2.6 Heights for Major and Minor Roads

In the presence of overhead services on Major and Minor Roads, mature height will be no greater than 6.7 metres for species planted beneath services, if directional pruning cannot be achieved with the proposed species.

In the absence of overhead services on Minor Roads mature height will be no greater

than 15 metres. In the absence of overhead services on Major Roads mature height may be greater

than 15 metres.

OVERHEAD SERVICES

WITHOUT OVERHEAD SERVICES

MINOR ROAD 6.7M 15M

MAJOR ROAD 6.7M > 15M

1.2.7 Reserve Planting

Tree planting in reserves will be undertaken using the largest tree species at maturity while ensuring that no services or buildings will be affected by the planting of such species. Where necessary shrub species will be established to screen aesthetically unsatisfactory structures (fences, walls).


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The planting of species which produce suckers that may create damming of drainage channels and cause damage to built or engineered structures are to be excluded from reserves.

1.2.8 Reserve Commemorative Planting

The Executive Planning & Infrastructure may, on receipt of a request from a resident, grant approval to plant a tree of a species and in a location on a reserve, not being a road reserve, as a memorial.

No memorial plaque shall be installed in association with a memorial planting without

the prior approval of the Council.

1.2.9 Urban Forest

Council may consider the establishment of urban forests on any land under its care, control and management which has been assessed as suitable for the purpose.

2. TREE MANAGEMENT

2.1 Record Keeping of Tree Inventory

2.1.1 Collection of Information

Previously the information was collected by a paper based form Now with advancements in technologies Council has introduced Electronic devices with feature tools such as a Geographic Positioning System (GPS) and Geographic Information System (GIS) This will help to improve data collection and update councils tree inventory Advantages to Database include: Can accurately determine tree locations Relatively fast to collect information required Units are programmable so inventory can be entered into drop down menus Reduction in spelling errors and self interpretation Can easily import coordinates into councils mapping system Can be used to navigate back to a point on the ground A real time update of information collected

2.1.2 Council's Responsibility

Team Leader Works will be responsible to ensure staff take and input data on a daily basis when undertaking Tree maintenance requests scheduled maintenance eg block pruning and annual planting program. The information will be regularly uploaded to main database and mapping

2.2 PLANTING AND CARE OF NEW TREES

2.2.1 Planting Guidelines The planting of street trees is the responsibility of the Works Section of the Planning

& Infrastructure Department. The following planting guidelines are illustrated in Appendix 3.


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Planting stock will be:

• minimum trunk calliper of ten (10) mm;

• one and a half (1.5) metres in height from ground level after planting;

• healthy and disease free;

• undamaged;

• straight;

• strong;

• of acceptable shape;

• no co-dominate stems;

• free of insect infestation;

• hardened off;

• nursery stock complies with Australian Standards.

Planting Preparation: The containerised tree will be well watered two (2) days before planting. The area nominated for planting shall be cleared of all weeds debris and foreign matter. Underground service location will be determined before work commences. The hole to be prepared for planting will be 1000mm square and a minimum of 300mm. The sides of the prepared hole will not be smooth or polished. Clay soils to be dug by hand, backhoe or other mechanical devices. The sides of the hole will be loosened with the use of a crow-bar, jack-hammer or similar, prior to tree planting to aid root penetration. Backfill the extra depth allowed below the root barrier/planter with clean friable soil if excavated material is unsuitable. Heel or stamp in lightly.

Remove the plant from its container. Loosen outer soil if compacted, keeping soil disturbance to a minimum. Plants found to be root bound will be returned to the supplier. Prune any damaged roots back to the root ball until firmly bedded in soil. Ensure all cuts are made cleanly with sharp secateurs. Prevent roots from drying out. Where possible existing street tree bowl size shall meet the above specification including trees planted in road reserve having sealed, paved or rubble surface. Place the tree inside the planting hole to the level of the container soil or in the case of grafted stock ensure the union is above the soil level and finish backfilling around the tree with clean friable soil. Ensure the tree is vertical. Ensure backfill soil does not contain rocks, clods or sticks. Firm in stages of backfill to which has been added a complete fertiliser, slow release or similar, mixed with backfill soil at the rate of 200gms per tree. Backfill in the area outside the planter with soil dug from the hole. Incorporate 20mm gravel to a ratio of 1 gravel to 3 soil with the backfill. This can be varied to provide a suitable blended material. The gravel allows water to penetrate deep to the bottom of the tree planted and also improves the aeration of the soil.

Water the tree thoroughly both inside and outside the planting hole.


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All trees planted will be fitted with trunk protection guards where mowing or whipper snippers will be used to manage grass. These will be removed after six (6) years but will require interim inspection. This guard will prevent ring barking of the tree or any trunk damage from machinery.

Staking and Tying:

Minimum stake size will be 2100mm x 50mm x 50mm hardwood. All advanced trees are to be staked on initial planting with a minimum of two (2) unit configuration and will remain firmly in the ground until inspection shows the tree has developed a satisfactory root system.

Locate stakes each side of the planted tree so they are a minimum of 600 mm into the ground and clear of the root ball. Ensure the stakes are firmly fixed into place and in alignment with kerbing.

All trees will be tied to stakes with Hessian straps or similar to ensure their stability. To check tree stability remove tie and gently move the trunk backwards and forwards.

Stable trees only will have ties removed. Following a period of six (6) months without tie support stakes will be removed.

Mulching:

Use a well composted mulch material free from all deleterious materials such as saw dust to a minimum depth of 75mm around each tree but allowing for a 150mm in diameter buffer around the stem to avoid collar rot.

2.2.2 Copse Planting

Copse planting to modify or enhance the traditional street tree alignment may be undertaken with the approval of the Council.

2.2.3 Time of Planting

Planting of containerised stock will occur from April to October annually depending on climatic conditions. Bare-rooted deciduous stock will be planted from May to August of each year.

2.2.4 Spacing

Each property where practical within the Town will have a minimum of one street tree planted in the road verge of the property frontage with preference for sufficiently close planting to allow canopy interaction at maturity.

A resident may request that more than one street tree be planted on the property frontage and consideration will be given to such a request subject to the following criteria:-

• Overhead services.

• Underground services.

• Position of existing Stobie pole.

• Overhanging verandah(s) or sign(s).

• Sight distance at intersections/junctions.

• Proximity of other buildings/structures.

• Size of verge area.


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To facilitate road vision street tree planting will not be permitted within two and a half (2.5) metres of a driveway unless it can be shown road safety will not be compromised.

The planting of street trees will only be considered where there is sufficient space for the tree species to reach maturity without the need for excessive pruning.

2.2.5 Watering

All trees will receive a minimum of sixty (60) litres of water per three (3) weeks during the dry season for a minimum of two (2) consecutive years. It is the water truck operator's responsibility to see that trees receive sufficient water during the months November to April.

2.2.6 Pruning

To establish trunk formation of all newly planted trees, pruning will be carried out over a minimum period of three (3) consecutive years from time of planting. This will be subject to species specifics.

2.3 GENERAL MANAGEMENT

2.3.1 Maintenance Guidelines

General:

The most important maintenance works will be the formation of a sound branch structure, encouragement of a free standing trunk and root system of moderate vigour, and the maintenance of sufficient soil moisture.

Trees planted in paved or sealed areas will have root barriers placed to ensure root spread does not damage the paved or sealed surface, if deemed necessary by Team Leader Works.

Appearance:

Each tree is to be individually considered in relation to shape, size, character, condition, species and site factors. All works will be completed so as to leave each tree with an aesthetically pleasing appearance and where possible a well balanced form. Trees will be shaped away from obstructions (windows, walls, traffic routes).

Competing Leader:

A branch which shows growth that is competing with the apical leader will be headed back no closer than 150-200 mm to the branch origin, preferably retaining 3 or 4 buds.

Crown Structure:

The structural integrity of the tree will be assessed. If there is any structural weakness within the crown, or if a large portion of the crown will be affected by rectifying the structural weakness, or the aesthetic value of the tree will be adversely affected, the Team Leader Works must grant approval before work is undertaken.


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Should the majority of the crown be structurally unsound and removal of the tree is considered the best option, the Team Leader Works is to be consulted before work is commenced.

Dead Wooding:

All dead, diseased and dying branches and limbs throughout the crown and smaller dead branches and twigs along exposed sections of the trunk will be removed. Final cuts will be made in accordance with Australian Standard AS 4373: 2007 Amenity Tree Pruning and best arboriculture practices.

Fertilising:

• Young Trees Fertiliser may be placed around the plant in the soil basin, at or soon after planting. Where mulch is used the soil surface is to be broken up, the fertiliser added, and the

mulch replaced and fertiliser watered in. An approved fertiliser for this purpose is five parts super phosphate, two parts

sulphate of ammonia (or one of urea) one part sulphate of potash and one part blood and bone. An alternative fertiliser is a complete 'slow release' proprietary brand such as Osmocote.

• Large Trees

Tree feeder roots are located near the surface and fertilising is to be undertaken by broadcasting fertiliser around the tree to a width at least two times crown diameter. Pills, powders or liquids are not to be placed in a series of deep holes around the base of the tree.

A tree planted in a lawn which is regularly fertilised does not require additional fertilising.

• Timing of Fertilising Applications will coincide with the tree's growing season - Spring and Autumn.

Evergreen trees will be fertilised in both seasons. Deciduous trees will be fertilised in spring. Filling Cavities:

At no time will the filling of cavities be permitted unless it is a safety issue which could result in bodily injury occurring.

Cavities in all species located within the reserves will be permitted to remain to

provide nesting and shelter sites for birds and animals. Final Cuts: Final cuts will be made with sharp tools to complement the tree's complex response

and defence systems and should facilitate a rapid occlusion of the wounded or diseased tissue. That is, all final cuts must conform with the current philosophy of


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pruning to the "trunk bark ridge", and be in accordance with Australian Standard AS 4373: 2007 Amenity Tree Pruning.

Formative Pruning: All young trees are to be formatively pruned. Consideration is to be given to their

future shape, structure and growth especially towards roads, footpaths and other structures.

Young trees posing line of sight problems but not tall enough to be crown lifted, or

where crown lifting will leave an unattractive tree, may have lower branches removed and the crown thinned to improve visibility.

All formative pruning is to be completed while the tree is in a juvenile state to ensure the size of wounds from pruning is minimised. This will allow the collar to quickly heal over the wound thus blocking entry of pathogens and minimising shock and stress to the tree.

Only sharp secateurs and sharp draw type hand pruning saws for thinning, shaping

and training of trees are to be used. Chainsaws are not to be used for formative pruning of young trees.

Structural pruning, shaping and calliper increase should be continued until a sound structure of sufficient strength has developed to withstand climatic stress. These processes will be carried out to comply with Council’s 3 year maintenance plan.

Temporary Branches:

Temporary branches growing below what will be the selected lowest scaffold branch will be retained but headed back to 2-3 buds to nourish and increase trunk calliper as well as protect the trunk from sun scald in the summer months.

NOTE: All street trees are staked for protection and planting stability.

Treatment of Wounds:

• Bark Damage

The wound will be cleaned and the bark trimmed into an elliptical pattern running lengthways along the trunk or branch. All lifted bark will be removed.

• Deep Wounds

Where this occurs and the wood has been splintered, the wood will be cleaned and smoothed to allow the tree to callous over. However in some cases it may be more beneficial to remove the tree and replant.

• Root Wounds

Splintered tissue will be removed and the root pruned back to undamaged wood.

When root damage is severe a reduction of the canopy in proportion to the root loss will be considered to ensure the tree remains stable.


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Where severe crown or root loss occurs a complete fertiliser is to be applied to encourage recovery.

• Compaction Where soil compaction occurs, deep coring or a similar method, top dressing with

coarse sand, and a fertiliser program across the area will be undertaken. Repeated work may be necessary to relieve the problem.

• Suckers and Their Control All suckers arising from the rootstocks or trunk area are to be removed. Root suckers

(tree removed) may be sprayed with a herbicide such as Glysophate. A live stump from which suckers arise will be poisoned.

When suckering trees are to be removed the tree will be stem injected with an

approved non-residual herbicide and the tree removed when the suckers are dead. Repeated applications of herbicide may be necessary.

2.3.2 Unhealthy Trees Any living tree that is severely diseased, of poor form, infested with termites or

unstable should be referred to the Team Leader Works or his nominee. Recognising the dangers associated with chemical use, the Team Leader Works or

his nominee shall establish the level and nature of the pest/disease and establish the appropriate method of treatment. Guidelines for the transportation, handling and disposal of infested or diseased material are in Appendix 5.

2.3.3 Council's Responsibility

Duty of care The person responsible for any tree has a duty, known in law as the duty of care, to take reasonable care to avoid acts or omissions which he or she can reasonably foresee would be likely to cause harm. The person responsible, although generally referred to the “owner” of the tree, will in practice be the occupier of the land on which it is standing. The occupier is whoever has sufficient control over the land to appreciate the extent of any dangers and to take any action. In practice it is never possible to eliminate completely all danger. The law therefore requires simply that the owner of a tree takes all reasonable care • to identify possible sources of foreseeable danger, and • to remove them as far as is reasonably possible.

Risk Assessment and Management

No tree is entirely safe, given the possibility that a seriously strong wind could damage or uproot even a mechanically ‘perfect’ specimen. It is therefore usually accepted that hazards are only recognisable from distinct defects or from other failure-prone characteristics of the tree or of the site. (Refer Appendix 10)

The assessment of risk is based on:


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The value of whatever is judged to be at risk, and the likelihood of it being harmed in the event of mechanical failure in the tree, as estimated by:- what is at risk - people, buildings, vehicles, etc

the probability of impact, based on duration of occupation - for example, in relation to a permanent structure or a given number of people using a path during a given period of time. (These considerations are clearly linked to the location of the tree, which is a key factor in deciding whether inspection is required in the first place.) • The magnitude of the hazard, as estimated from the size (diameter) and height of the part of the tree most likely to fail. (There are standardised assessment systems used by specialist assessors, which place the size of trunks or branches in a series of categories.) • The probability of failure, based on the type, position and severity of the defect concerned, the species or cultivar of tree and the nature of the site. The following need to be taken into account: - some types of defect are more likely than others to lead to failure; for example, forks

with included bark account for a high proportion of above-ground failures, whereas zones of decay in stems and branches generally cause serious weakening only if they occupy a large proportion of the cross-sectional area. The assessment of decay generally requires a measurement of the extent and position of the remaining sound wood;

- if the defect is associated with decay, identification of the fungus responsible may be desirable. There are a number of types of decay (including the broad categories of ‘white rots’ and ‘brown rots’) whose mechanical properties are different enough to affect the likelihood of failure in some cases;

- some species or cultivars of tree are known to be weakened more than others by certain types of growth-related defect or by particular species of decay fungus;

- a number of site factors affect the likelihood of failure, including exposure to wind (especially any recent alteration in exposure) and the depth of the soil available for rooting

Definitions

There are three classes of trees in the landscape related to levels of risk. The first is a “hazard tree.” The attributes of a hazard tree are it has a major structural fault that could lead to catastrophic loss and it has an identifiable target (people or property). The second class of tree is a “tree at risk” of catastrophic failure or with a significant target profile potentially leading to great injury and harm. A “tree at risk” has potential for becoming a hazard tree. The third class is all the rest of the trees present with known risk assessments, or as yet undetermined associated risks. The amount of acceptable risk is dependent upon the management objectives of the site and the owners / manager’s perceptions and expectations of tree performance.

Frequency of tree inspection


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The target zone will determine the general tree inspection frequency. However, trees identified as having both very high retention value and very high hazard ratings may require exceptional inspection cycles or types of inspection. Where there are trees with low failure potential in high risk zones, it may be reasonable not to inspect such trees and review them at a future date. If no management of the trees or the targets takes place, the initial zoning will determine the future frequency of tree inspection. If however, management takes place, the risk classification may be altered together with future inspection requirements. All trees within range of targets may require inspection after severe storms, particularly in medium to high risk zones. Any other circumstance which may give rise to rapid and significant changes in tree condition may also affect frequency of inspection.

Recording

Inspection records should include inspection dates, name of inspector, weather conditions, and presence of factors obscuring potential defects. The areas of trees inspected alongside roads and footpaths should be clearly marked on accompanying maps or otherwise defined. It is important to record inspections, even if only briefly, to be able to demonstrate that this element of duty of care has been fulfilled. Instructions to carry out work to trees, dates of completion, together with any amendments to tree inspectors’ recommendations, should also be recorded. Records provide the basis for safety management reviews and can, over time, build a valuable historical record of site specific tree failure or non-failure patterns. Once hazards have been assessed or work completed, re-inspection times should be assigned or reviewed and then recorded.

Maintenance The maintenance of all trees growing in the roads and reserves whether of recent

planting or mature, is the responsibility of the Planning & Infrastructure Section as follows:-

• To an Australian Standards.

• To conform with statutory and other legal requirements for public safety.

• For improvement of tree longevity and health.

• To be in harmony with the scenic amenity and intrinsic character of the particular location.

• Minimise risks

A risk assessment and maintenance will be carried out on a regular basis and any and potential hazards and maintenance identified to be undertaken if deemed appropriate, and as a duty of care

2.3.4 Bracing, Spikes Bracing and Cabling will only be considered for special circumstances (i.e. retention

of heritage tree) and its application approved by the Executive Planning & Infrastructure.


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In the interest of public safety, a tree subject to crotch splitting will be the subject of a

report to Council. Climbing irons (spikes) are not to be used on any living tree as this equipment may

introduce disease to an otherwise healthy tree. 2.3.5 Vandalism/Theft

Major injury as a result of vandalism which is capable of repair by tree surgery to enable regrowth to an acceptable form, will be repaired. Heavily vandalised trees will be removed and replaced.

Where a tree is repeatedly stolen, its replacement is to be deferred until the following planting season and residents advised accordingly.

2.3.6 Attachments to Trees

The attachment or use of tree rings, plants, signs, support wire/rope, receptacle of any kind, nails, glue, plastic, wood, metal, solid or liquid aerated filling agents (i.e. polystyrene), unless employed by Council or a Council contractor for authorised tree surgery purposes, is not permitted on any tree under the care and control of Council.

2.3.7 Tree Protection

Protection of trees by the use of tree guards, stakes or bollards may be undertaken at Council's discretion. Any unauthorised protection including steel bollards, concrete rings or other devices installed to protect the tree and not approved by Council may be removed forthwith.

2.3.8 Road Construction, Trenching

Where construction work is intended to be deeper than 300mm from top of kerb level at or within the root zone, the Executive Planning & Infrastructure or his nominee will be consulted.

Where the stability of a tree is under review as a result of construction work within the root zone, the Executive Planning & Infrastructure / Team Leader Works or his nominee will assess the safety of the tree.

Council will where possible:

• restrict the parking of vehicles;

• avoid construction of parking bays; and

• discourage development of transport facilities within the root zones of trees.

Where a tree is listed as Heritage or Significant (or Regulated) the Executive Planning & Infrastructure / Team Leader Works will be notified prior to commencement of work.

Where construction work will require removal of a proportion of a tree's roots the following calculation will be applied:-

1. Measure diameter of tree trunk at DHB (1.5m) above the ground.

2. Multiply the trunk diameter 10 times.

Based on this calculation:


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• Work will not commence in a tree's root zone within the diameter of 10 times trunk diameter.

• Root pruning from 10 times trunk diameter may be undertaken under the supervision of the Urban Tree Management Officer or his nominee.

• No more than 10% of a tree's roots will be removed in a year.

• When necessary, evergreen trees will have their roots pruned in autumn/winter.

• Deciduous trees will be root pruned in their dormant period.

• When root pruning is necessary, consideration will be given to the thinning of the canopy before root pruning commences.

• Where canopy thinning is necessary the Executive Planning & Infrastructure / Team Leader Works or his nominee should be notified prior to the commencement of work.

• Where possible, mechanical trenching is not to occur within 10 times the trunk diameter.

Change in Soil Level:

Prior to tree protection works being undertaken the Executive Planning & Infrastructure / Team Leader Works or his nominee shall be consulted as to the extent and nature of the works required.

The following factors will be taken into consideration:-

• Location of the tree.

• Age of the tree.

• Species of the tree.

• Value of the tree (monetary/amenity).

• Alternative(s) to a change in soil level (landscape option(s)).

• Life expectancy as a result of protection work.

• Transplant option.

2.4 PRUNING

All pruning operations under the Council's direction or control will adhere to the Australian Standard AS 4373: 2007 Amenity Tree Pruning and any other Standard relevant to the work being performed.

2.4.1 Footpath / Road Clearances

Minor Roads: Where necessary, foliage and branches will be cleared to the following heights as

illustrated in Appendix 7 (A):

• 2.5 metres over the footpath and other verge area.

• 3.0 metres, two (2) metres from the kerb over the road.

• 4.0 metres, from the two (2) metre line to the road centre.

Main Roads: (All State Government Roads and Bus Routes)


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Where necessary, foliage and branches will be cleared to the following heights as illustrated in Appendix 7 (B):

• 2.5 metres over the footpath and other verge area.

• 5.0 metres from the kerb or edge of bitumen where a kerb is not constructed. 2.4.2 Overhead Services ETSA: The clearance of vegetation in contact with, or protruding through, uninsulated mains

supply electricity lines or Aerial Bundled Cable (ABC) by Council staff is NOT permitted. Council staff may not work within one (1) metre of low voltage and two (2) metres of high voltage to 11KVa electricity lines.

Telstra:

If the crown of a tree is distorting the path of an overhead telecommunication service some clearance work may be required to free the wire(s). If distortion is caused by a large limb it is appropriate for the wire(s) to be re-directed.

2.4.3 Signals, Signs and Street Lights

Signals:

Council will maintain traffic and pedestrian signal visibility in accordance with Transport SA guidelines as illustrated in Appendix 8 (A) and Appendix 8 (B).

Traffic and pedestrian crossing signals on the left hand and on the right hand sides of the road will be clearly visible for the distances as indicated in the table below:

Speed Left Hand Side Right Hand Side

≤ 50 km/h 100 metres 60 metres

60 km/h 130 metres 80 metres

70 km/h 150 metres 100 metres 80 km/h 170 metres 120 metres

A standard signal post is four point five (4.5) metres high and therefore the bottom of the tree canopy is to be pruned to five (5) metres in height behind the kerb line.

Signs:

Foliage is to be cleared to maintain line of sight for all traffic so that any traffic sign is visible from at least fifty (50) metres to on-coming traffic.

Street Lights:

Foliage is to be cleared from street lights to allow adequate illumination.

2.4.4 Private Property

Where a tree overhangs private property and the resident requests removal of the overhang, pruning is to be undertaken to reduce the extent of the overhang with


Page 17



consideration being given to the degree of interference, and to the overall shape and form of the tree.

The crown is to be lifted to at least three (3.0) metres (unless the resident requests it to be left lower). Any foliage or branches in contact with structures and buildings will be removed.

2.4.5 Pollarding

The Pollarding method of pruning will only be employed in special circumstances when other methods will not fulfil the objective of maintaining a healthy and well shaped tree.

Where Pollarding is considered necessary, the Urban Tree Management Officer is to be notified before work commences.

2.4.6 Frequency

Pruning of established street trees will be undertaken at least once per three (3) years except when special circumstances exist and more frequent pruning is required.

Reserve trees will not be subject to crown lifting except as deemed necessary by the Urban Tree Management Officer.

2.4.7 Root Barrier

When it is considered that a tree's roots may adversely affect, or have adversely affected, a structure, service or surface treatment and it is deemed appropriate and space permits, the Executive Planning & Infrastructure / Team Leader Works may install an artificial barrier between the structure, surface or surface treatment and the tree's roots.

2.4.8 Tree Canopy Over Main Roads

The maintenance of tree canopies overhanging main roads will be reviewed every 3 - 5 years with consideration given to the following:

• Removal of deadwood.

• Removal of limbs to provide 5.0m clearance.

• Thinning of timber on overhanging limbs higher than 5.0m to reduce weight.

• Removal of diseased wood.

• Removal of trees considered to be a public risk. 3. TREE REMOVAL

3.1 GENERAL

3.1.1 Criteria for Removal

The Chief Executive Officer or his nominee has the authority to approve or refuse the removal of trees on Council property in accordance with the following:-

• Trees that are dead, dying, deformed, diseased, damaged, in poor health or have reached the end of their useful life; or


Page 18



• Where a tree presents a risk to public safety; or

• For a service authority (ETSA, SA Water, Telstra, SA Gas); and

• Where the tree is not deemed to be a Significant (or Regulated) Tree under the Development (Significant Trees) Amendment Act 2011.

3.1.2 Procedure for Removal

The procedure for the removal of a street tree requested by a local resident is as follows:

1. The resident is to place their request for tree removal in writing to the Executive Planning & Infrastructure advising:

• their name address and telephone number;

• the exact location of the relevant tree;

• the reason why the resident wishes to have the tree removed (i.e. dead, dying, other).

2. The resident will be advised that they will be contacted within a maximum of twenty (20) working days after receipt of their correspondence with advice as to the tree assessment findings and the proposed action and time frame.

3. Consultation may be undertaken with the residents whose properties are immediately adjacent to the tree.

4. A site visit and tree assessment will be undertaken by the Executive Planning & Infrastructure / Team Leader Works or his nominee, or an Independent Arborist, and a written report will be produced taking into account the condition of the tree having regard to:

• the location of the tree;

• the health / anticipated life of the tree;

• suitability of the species as a street tree;

• reasons stated for removal.

5. The Executive Planning & Infrastructure will review the report and arrange for the recommended work to be undertaken following consultation with the Team Leader Works.

NOTE 1: Where a tree shows signs of severe structural instability (e.g. storm damage) priority inspection and removal will occur. NOTE 2: Where a stand of trees have a high aesthetic or amenity value in retaining the road or reserve architecture and there are proposals for their removal, the proposal shall be referred to Council for consideration and for consultation with those affected.

3.2 TREES ON COUNCIL LAND

3.2.1 Removal of Pest Trees Council will undertake removal of environmental pest plants from land under the care,

control and management of Council. These include the following pest trees:

• Pinus radiata (Monterey Pine)

• Pinus halepensis (Aleppo Pine)


Page 19



• Olea europaea (European Olive)

• Fraxinus oxycarpa (Desert Ash)

• Melia azedarach (White Cedar)

• Casuarina glauca (Swamp Sheoak)

• Populus nigra (Lombardy Poplar)

• Ulmus procera (English Elm)

• Salix babylonica (Weeping Willow)

• Ficus (Fig)

Residents will be notified in writing of a removal program in their locality (see Appendix 6).

3.2.2 Dead Trees The Executive Planning & Infrastructure / Team Leader Works or his nominee is

authorised to remove dead trees in the interest of public safety and the maintenance of streetscape aesthetics.

Where dead trees are located on a reserve the Executive Planning & Infrastructure / Team Leader Works may, where public safety, buildings or other property are not threatened, allow a dead tree to remain where the tree has, or has potential, to provide habitat for native fauna.

3.2.3 Seed Collection

A permit is required from the Minister for Environment and Conservation to collect native plant materials, including seed, on land reserved for, or dedicated to public purposes, such as roadsides and local Council reserves. Written approval from the management authority responsible for the land must also be obtained prior to collection. A copy of the Department of Environment and Heritage (DEH) information relating to the application for, and the standard conditions that apply to, a permit for the collection of native plant materials is included in Appendix 9. The Executive Planning & Infrastructure / Team Leader Works is authorised to approve the collection of seed from native trees and shrubs under the care and control of Council upon application from a DEH permit holder.


Page 20



APPENDIX 1

STREET TREE PLANTINGS

REPLACEMENT TREE HEIGHT DESCRIPTION

Acer Negundo (Box Elder) 9 m Low branched shade tree, hardy, shallow rooted

Acer campestre (Field Maple) 9 m Low branched shade tree, hardy, shallow rooted

Bauhinia Variegata (Orchid tree) 6 m Small hybrid with spectacular summer flowers

Calendron capensis 7m Shade tree with purple/white flowers

Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

5 m Red bottlebrush

Celtis occidentalis (Hackberry) 8 m Spreading shade tree – turns deep gold in autumn

Celtis laevigata (Mississippi Sugarberry) 7 to 8 m Spreading shade tree – turns deep gold in autumn

Celtis Australis (European Hackberry) 6 to 8 m Spreading shade tree – turns deep gold in autumn

Cercis silaquastrum (Judas Tree) 6 - 10 m Masses of pink/mauve flowers, hardy tree

Fraxinus Excelsior “Aurea” (Golden Ash) 6 to 8 m Deep root system, yellow leaves turn deep gold

Fraxinus Griffithii (flowering or Evergreen Ash)

5 m Hardy evergreen small tree, small white flowers

Fraxinus Ornus (Manna Ash) 12 m Shade tree, soft green leaves turn bronze in autumn

Gleditsia triacanthos “Ruby Lace” (Scarlet Honey Locust)

9 m Elegant shape, bronze foliage & red tipped branches

Jacaranda Mimosifolia (Jacaranda) 12 m Deep rooted, gold leaves in autumn, blue flowers

Koelreuteria Paniculata (Golden Rain) 5 to 8 m Open and light foliage, panicles of yellow flowers

Koelreuteria bipinnata (Pride of China) 5 to 8 m Open and light foliage, panicles of mauve flowers

Lagerstroemia indica “Eavesii” (Mauve Crepe Myrtle)

5 m Summer flowering small tree

Lophostemon conferta (Queensland Box) 6 – 10 m Dark green foliage falls with berries in summer

Malus floribunda (Japanese flowering crab apple)

7-10 m Small, summer flowering shade tree

Malus ioenensis 5m Small, summer flowering shade tree

Photinia glabra “Robusta” (Photinia) 4.5 m Hardy evergreen with small white flowers

Photinia serrulata (Chinese Hawthorn) 4 to 6 m Hardy evergreen with small white flowers

Pistashia Chinensis 7.5 m Red/gold autumn leaves followed by red berries

Pittosporum crassifolium (Karo) 4m Small tree with reddish/purple flower


Page 21



REPLACEMENT TREE HEIGHT DESCRIPTION

Prunus Elvins (Pink Flowering Plum) 4 to 6 m Small tree, bronze foliage with rose/pink flowers

Pyrus calleryana (Flowering Pear) 6 – 10 m Upright form with white flowers, larger leaves

Pyrus calleryana “Bradford” (Bradford Pear) 6 – 8 m Upright form with white flowers, larger leaves

Pyrus calleryana “Red Spire” (Flowering Pear)

6 – 8 m Upright form with red flowers, larger leaves

Pyrus Ussuriensis (Manchurian Pear) 10 m Medium well shaped tree with small fruit

Robinia psuedoacacia “Frisia”(Golden Robinia)

6 to 8 m Upright, cream perfumed flowers, gold in Autumn

Sapium sebiferum (Chinese Tallow Tree) 5 to 8 m Hardy in Adelaide, good Autumn colour

Sophora Japonica (Pagoda tree) 9-12 m Dark green foliage with yellow summer flowers


Page 22



REPLACEMENT STREET TREE SCHEDULE

STREET SIDE EXISTING TREE ETSA REPLACEMENT TREE

ACACIA STREET North W/cedar, G/rain, Sophora

LV Fraxinus Griffithii

ACACIA STREET South W/cedar, G/rain, Sophora

Sophora Japonica (pagoda tree)

ALFRED STREET North Nil LV No plantings

ALFRED STREET South Nil No plantings

ALMOND COURT Acer Negundo U/G Acer Negundo

ANGAS AVENUE West Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

LV Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

ANGAS AVENUE East Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)


ARTHUR STREET North Koelreuteria Paniculata (Golden Rain)

LV Koelreuteria Paniculata (Golden Rain)

ARTHUR STREET South Koelreuteria Paniculata (Golden Rain)

Koelreuteria Paniculata (Golden Rain)

ARUNDEL STREET West Koelreuteria Paniculata (Golden Rain) and Tristania conferta (Queensland Box)


ARUNDEL STREET East Koelreuteria Paniculata (Golden Rain) and Tristania conferta (Queensland Box)


ASCOT AVENUE East Tristania conferta (Queensland Box) and Pyrus Ussuriensis (Manchurian Pear)

HV Pyrus Ussuriensis (Manchurian Pear)

ASCOT AVENUE West Tristania conferta (Queensland Box) and Pyrus Ussuriensis (Manchurian Pear)

Pyrus Ussuriensis (Manchurian Pear)

AVENEL GARDENS

ROAD E/W North Golden Rain,

Queensland Box, Plane, Melaleuca

HV Koelreuteria bipinnata (Pride of China)

AVENEL GARDENS

ROAD E/W South Golden Rain,




Page 23




AVENEL GARDENS

ROAD N/S East Golden Rain,

Evergreen Alder, Celtis Celtis australis (Hackberry)

AVENEL GARDENS

ROAD N/S West Golden Rain,


HV Koelreuteria Paniculata (Golden Rain)

BARDINI STREET East Pyrus Ussuriensis (Manchurian Pear)

LV Pyrus Ussuriensis (Manchurian Pear)

BARDINI STREET West Pyrus Ussuriensis (Manchurian Pear)


BELT STREET North Koelreuteria Paniculata (Golden Rain)


BELT STREET South Koelreuteria Paniculata (Golden Rain)


BRIAR AVENUE HAWKERS TO

WILLYAMA

North Celtis & Ash HV Koelreuteria Paniculata (Golden Rain)

BRIAR AVENUE HAWKERS TO

WILLYAMA

South Celtis & Ash Celtis Australis (Hackberry)

BRIAR AVENUE WILLYAMA TO

RASP

North Celtis LV Celtis Australis (Hackberry)

BRIAR AVENUE WILLYAMA TO

RASP

South Celtis Celtis Australis (Hackberry)

BRUNSWICK

STREET BURLINGTON TO ST. ANDREWS

North Golden Rain, Golden Ash, Acaia Paniculata


BRUNSWICK


South Golden Rain, Golden Ash, Acaia Paniculata

Koelreuteria Paniculata (Golden Rain

BRUNSWICK

STREET ST. ANDREWS TO LANSDOWNE

North Golden Rain, Golden Ash, Acaia Paniculata

LV Koelreuteria Paniculata (Golden Rain

BRUNSWICK


South Golden Rain, Golden Ash, Acaia Paniculata


BUCKINGHAM

STREET East Photinia Robusta

(Chinese Hawthorn) LV Photinia Robusta (Chinese

Hawthorn)

BUCKINGHAM

STREET East Photinia Robusta

(Chinese Hawthorn) Photinia Robusta (Chinese

Hawthorn)

BURLINGTON

STREET North Koelreuteria Paniculata

(Golden Rain) Koelreuteria Paniculata (Golden

Rain)

BURLINGTON

STREET South Koelreuteria Paniculata

(Golden Rain) LV Koelreuteria Paniculata (Golden

Rain)


Page 24




CAMBRIDGE

STREET North Callistemon ‘Harkness’

(Gawler Hybrid Bottlebrush)


CAMBRIDGE

STREET South Callistemon ‘Harkness’

(Gawler Hybrid Bottlebrush)

HV Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

CHASE GROVE East Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)


CHASE GROVE West Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)


CHURCH

TERRACE ST. ANDREWS TO LANSDOWNE

North Jacaranda HV Pyrus calleryana (Flowering Pear)

CHURCH

TERRACE ST. ANDREWS TO LANSDOWNE

South Jacaranda Jacaranda

CHURCH

TERRACE ST. ANDREWS TO STEPHEN

North Koelreuteria Paniculata (Golden Rain)


CHURCH

TERRACE ST. ANDREWS TO STEPHEN

South Koelreuteria Paniculata (Golden Rain)


CHURCH

TERRACE BOWLING CLUB

South Lagerstroemia “Eavesii” (Crepe Myrtle)

Lagerstroemia “Eavesii” (Crepe Myrtle)

CLARKE STREET North Lagerstroemia “Eavesii” (Crepe Myrtle)

HV Lagerstroemia “Eavesii” (Crepe Myrtle)

CLARKE STREET South Lagerstroemia “Eavesii” (Crepe Myrtle)


CLISBY STREET North Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

Fraxinus Griffithii (flowering ash)

CLISBY STREET South Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)


CLUNY AVENUE North Tristania conferta (Queensland Box)

HV Tristania conferta (Queensland Box)

CLUNY AVENUE South Tristania conferta (Queensland Box)

Tristania conferta (Queensland Box)

CRESWELL

COURT North Gleditsia “Ruby Lace”

(Gleditsia) Pyrus Ussuriensis (Manchurian

Pear)

CRESWELL

COURT South Gleditsia “Ruby Lace”

(Gleditsia) LV Pyrus Ussuriensis (Manchurian

Pear)


Page 25




DAPHNE STREET North Pyrus Ussuriensis (Manchurian Pear)


DAPHNE STREET South Pyrus Ussuriensis (Manchurian Pear)


DARLING STREET North Lagerstroemia “Eavesii” (Crepe Myrtle)


DARLING STREET South Lagerstroemia “Eavesii” (Crepe Myrtle)


DEVONSHIRE


North Koelreuteria Paniculata (Golden Rain)


DEVONSHIRE


South Koelreuteria Paniculata (Golden Rain)

LV Koelreuteria Paniculata (Golden Rain

DEVONSHIRE


North Jacaranda, Queensland & Robinia

Robinia Frisia

DEVONSHIRE


South Jacaranda, Queensland & Robinia

LV Robinia Frisia

DOREEN STREET East Eucalypts, Queensland Box, Sophora

Sophora japonica (Pagoda Tree)

DOREEN STREET West Eucalypts, Queensland Box, Sophora

LV Pyrus calleryana (Bradford Pear)

DUTTON TERRACE North Desert Ash & Golden Rain

Sophora japonica (Pagoda Tree)

DUTTON TERRACE South Desert Ash & Golden Rain

HV Fraxinus Griffithii (flowering Ash)

DYSON ROAD North Queensland box & Flowering Ash

LV Fraxinus Griffithii (Flowering Ash)

DYSON ROAD South Queensland box & Flowering Ash

Fraxinus Griffithii (Flowering Ash)

EDMUND STREET North Queensland Box LV Photinia serrulata “Robusta” (Photinia)

EDMUND STREET South Queensland Box Photinia serrulata “Robusta” (Photinia)

EDWIN TERRACE North Jacaranda Mimosifolia (Jacaranda)

UG Jacaranda Mimosifolia (Jacaranda)

EDWIN TERRACE South Jacaranda Mimosifolia (Jacaranda)

UG Jacaranda Mimosifolia (Jacaranda)

ELIZA STREET North Photinia Photinia Robusta

ELIZA STREET South Photinia LV Photinia Robusta

ELM COURT East Queensland Box LV Pyrus calleryana (Bradford Pear)


Page 26




ELM COURT West Queensland Box Pyrus calleryana (Bradford Pear)

ELM STREET East Lagerstroemia “Eavesii” (Crepe Myrtle)


ELM STREET West Lagerstroemia “Eavesii” (Crepe Myrtle)


ETTRICK AVENUE East Celtis Australis (Southern Hockberry, Celtis)

Celtis Australis (Southern Hockberry, Celtis)

ETTRICK AVENUE West Celtis Australis (Southern Hockberry, Celtis)

LV Celtis Australis (Southern Hockberry, Celtis)

EVELYN STREET North Pyrus Ussuriensis (Manchurian Pear)


EVELYN STREET South Pyrus Ussuriensis (Manchurian Pear)


FIFE STREET West Celtis & Queensland Box


FREDERICK

STREET North Prunus (Flowering

Plum) Prunus (Flowering Plum)

FREDERICK

STREET South Prunus (Flowering

Plum) LV Prunus (Flowering Plum)

FULLER COURT North Prunus Elvins (Flowering Plum)

LV Prunus Elvins (Flowering Plum)

FULLER COURT South Prunus Elvins (Flowering Plum)

Prunus Elvins (Flowering Plum)

FULLER STREET East No plantings LV No plantings

FULLER STREET West No plantings No plantings

GARNET STREET North Pyrus Ussuriensis (Manchurian Pear)


GARNET STREET South Pyrus Ussuriensis (Manchurian Pear)


GAWLER

TERRACE SMITH TO

WARWICK

East Koelreuteria paniculata (Golden Rain)

LV Koelreuteria paniculata (Golden Rain)

GAWLER

TERRACE SMITH TO

WARWICK

West Koelreuteria paniculata (Golden Rain)

Koelreuteria paniculata (Golden Rain)

GAWLER

TERRACE WARWICK TO

STEPHEN

North Koelreuteria paniculata (Golden Rain)

LV Koelreuteria paniculata (Golden Rain)

GAWLER

TERRACE WARWICK TO

STEPHEN

South Koelreuteria paniculata (Golden Rain)

Koelreuteria paniculata (Golden Rain)


Page 27




GEORGE STREET VALE PARK

North Eucalypt, Queensland Box, Bottle Brush & Jacaranda


GEORGE STREET VALE PARK

South Eucalypt, Queensland Box, Bottle Brush & Jacaranda

Jacaranda

GILBERT STREET

East Queensland Box, Bottle Brush, Jacaranda & Eucalypt

Jacaranda

GILBERT STREET West Queensland Box, Bottle Brush, Jacaranda & Eucalypt


GLENFIELD

COURT South Prunus Elvins

(Flowering Plum LV Prunus Elvins (Flowering Plum)

GLENFIELD

COURT North Nil - Reserve Nil - Reserve

HAMILTON

STREET North Eucalypt, Queensland

Box & Bottle Brush Callistemon ‘Harkness’ (Gawler

Hybrid Bottlebrush)

HAMILTON

STREET South Eucalypt, Queensland

Box & Bottle Brush LV Callistemon ‘Harkness’ (Gawler

Hybrid Bottlebrush)

HARRIS ROAD FIFE TO ILFORD

North Queensland Box, Bottle Brush, Crepe Myrtle & Jacaranda

Jacaranda

HARRIS ROAD FIFE TO ILFORD

South Queensland Box, Bottle Brush, Crepe Myrtle & Jacaranda


HARRIS ROAD ILFORD TO ASCOT


Jacaranda

HARRIS ROAD ILFORD TO ASCOT


HV Fraxinus Griffithii (Flowering Ash)

HARRIS ROAD ASCOT TO ANGAS


Jacaranda

HARRIS ROAD ASCOT TO ANGAS



HAWKERS ROAD NOTTAGE TO

DUTTON

East Golden Rain, Ash & Jacaranda


HAWKERS ROAD NOTTAGE TO

DUTTON

West Golden Rain, Ash & Jacaranda


HAWKERS ROAD DUTTON TO ROBE

East Golden Rain, Ash & Jacaranda


HAWKERS ROAD DUTTON TO ROBE

West Golden Rain, Ash & Jacaranda



Page 28




HAY STREET BURLINGTON TO

HAY

North Queensland Box LV Malus ioenensis

HAY STREET BURLINGTON TO

HAY

South Queensland Box Robinia psuedoacacia “Frisia” Golden Robinia

HAY STREET HAY L. TO END

North Elms, Jacaranda & Malus

Robinia psuedoacacia “Frisia” Golden Robinia

HAY STREET HAY L. TO END

South Elms, Jacaranda & Malus

LV Malus ioenensis

HERBERT STREET North Koelreuteria Paniculata (Golden Rain)


HERBERT STREET South Koelreuteria Paniculata (Golden Rain)


HORN COURT East Queensland Box LV Pittosporum crassifolium (Karo)

HORN COURT West Queensland Box Pittosporum crassifolium (Karo)

HORROCKS



Rain)

HORROCKS



Rain)

HUTTON STREET North Eucalypts, Bottle Brush & Queensland Box


HUTTON STREET South Eucalypts, Bottle Brush & Queensland Box


ILFORD STREET East Golden Rain & Queensland Box


ILFORD STREET West Golden Rain & Queensland Box


JAMES STREET WALK TO

FREDERICK

East Pistachia, Manchurian Pear


JAMES STREET WALK TO

FREDERICK

West Pistachia, Manchurian Pear


JAMES STREET EDWIN TO N/COTE

East Photinia Robusta (Chinese Hawthorn)

HV Photinia Robusta (Chinese Hawthorn)

JAMES STREET EDWIN TO N/COTE

West Photinia Robusta (Chinese Hawthorn)

Photinia Robusta (Chinese Hawthorn)

JEFFREY COURT nil No plantings required

JEFFREY ROAD North Bauhinia Variegata (Orchid tree) & Photinia – near Lansdowne

LV Photinia serrulata (Chinese Hawthorn) and Pittosporum Crassifolium (Karo)

JEFFREY ROAD South Bauhinia Variegata (Orchid tree) & Photinia – near Lansdowne

Photinia serrulata (Chinese Hawthorn) and Pittosporum Crassifolium (Karo)

LANSDOWNE

TCE.. East Jacaranda Jacaranda


Page 29




LANSDOWNE TCE. West Oleander, Jacaranda, Bottle brush

HV/LV Koelreuteria Paniculata (Golden Rain)

LINDSAY STREET North Eucalypts, Queensland Box, Bottle Brush, Golden Ash


LINDSAY STREET South Eucalypts, Queensland Box, Bottle Brush, Golden Ash


MAIN NORTH

ROAD East nil nil

MATILDA STREET North Koelreuteria Paniculata (Golden Rain)


MATILDA STREET South Koelreuteria Paniculata (Golden Rain)


MARGARET



Rain)

MARGARET



Rain)

MCARTHUR

STREET North Bottle Brush,

Queensland Box, Agonis


MCARTHUR

STREET South Bottle Brush,

Queensland Box, Agonis

Saphora juponica (Pagoda Tree)

MILNE STREET East Queensland Box Pyrus Ussuriensis (Manchurian Pear)

MILNE STREET West Queensland Box HV Pyrus calleryana (Bradford Pear)

MIMOSA DRIVE North Queensland Box, Bottle Brush & Eucalypt

LV Lophostemon conferta (Queensland Box)

MIMOSA DRIVE South Queensland Box, Bottle Brush & Eucalypt

Lophostemon conferta (Queensland Box)

MONARO COURT East Queensland Box & Eucalypt

LV Pittosporum crassifolium (Karo)

MONARO COURT West Queensland Box & Eucalypt

Pittosporum crassifolium (Karo)

NORTH EAST

ROAD South Pistacia chinensis Pistacia chinensis

NORTHCOTE TCE. East Jacaranda Jacaranda

NORTHCOTE TCE. West Jacaranda HV Jacaranda

NOTTAGE

TERRACE South Faxinus oxycarpa Calodendron capensis

PALM STREET East Sophora, Jacaranda Sophora Japonica (Pagoda tree)

PALM STREET West Sophora, Jacaranda LV Sophora Japonica (Pagoda tree)

PARK TERRACE (NORTH)

East Sophora Japonica (Pagoda tree)

LV Sophora Japonica (Pagoda tree)

PARK TERRACE (SOUTH)

East Bauhinia Variegata (Orchid tree)

HV Bauhinia Variegata (Orchid tree)


Page 30




PHILIP PLACE East Koelreuteria Paniculata (Golden Rain)


PHILIP PLACE West Koelreuteria Paniculata (Golden Rain)


PHILIP STREET North Koelreuteria Paniculata (Golden Rain)


PHILIP STREET South Koelreuteria Paniculata (Golden Rain)


PONDER AVENUE North Robinia Frisia LV Robinia Frisia

PONDER AVENUE South Robinia Frisia Robinia Frisia

QUEEN STREET No Planting nil No plantings

RASP AVENUE East Celtis Australis (Southern Hockberry, Celtis)

LV Celtis Australis (Southern Hockberry, Celtis)

RASP AVENUE West Celtis Australis (Southern Hockberry, Celtis)


REDFORD STREET North Koelreuteria Paniculata (Golden Rain)


REDFORD STREET South Koelreuteria Paniculata (Golden Rain)


RIVER STREET East Bauhinia Variegata (Orchid tree)

Bauhinia Variegata (Orchid tree)

RIVER STREET West Bauhinia Variegata (Orchid tree)

HV Bauhinia Variegata (Orchid tree)

ROBE TERRACE North Queensland Box LV Pending design of service road

ROSE STREET North Pyrus Ussuriensis (Manchurian Pear)


ROSE STREET South Pyrus Ussuriensis (Manchurian Pear)


SEVERN STREET North Koelreuteria Paniculata (Golden Rain)


SEVERN STREET South Koelreuteria Paniculata (Golden Rain)


SHERGIS AVENUE East No planting LV No planting

SHERGIS AVENUE West No planting No planting

SIMPSON STREET North Manchurian Pear, Queensland Box


SIMPSON STREET South Manchurian Pear, Queensland Box


SMITH STREET East Plane, Golden Rain, Bottle Brush

Plane & Koelreuteria bipinnata (Pride of China)

SMITH STREET West Plane, Golden Rain, Bottle Brush

LV Plane & Koelreuteria bipinnata (Pride of China)

ST ANDREWS

STREET East Queensland Box,

Golden Rain, Jacaranda

LV & HV



Page 31




ST ANDREWS

STREET West Queensland Box,


Jacarandas

STEPHEN

TERRACE East Koelreuteria Paniculata


Rain)

STEPHEN

TERRACE West Koelreuteria Paniculata

(Golden Rain) LV & HV


STEWART AVENUE North Queensland Box, Bottle Brush


STEWART AVENUE South Queensland Box, Bottle Brush


STOUR STREET North Koelreuteria Paniculata (Golden Rain)

? Koelreuteria Paniculata (Golden Rain)

STOUR STREET South Koelreuteria Paniculata (Golden Rain)

? Koelreuteria Paniculata (Golden Rain)

TENNYSON

STREET North Bottle Brush & Golden

Rain LV Callistemon ‘Harkness’ (Gawler

Hybrid Bottlebrush)

TENNYSON

STREET South Bottle Brush & Golden

Rain Callistemon ‘Harkness’ (Gawler

Hybrid Bottlebrush)

THAMES STREET East Manchurian Pear & Queensland Box


THAMES STREET West Manchurian Pear & Queensland Box


THE AVENUE East Jacaranda, Celtis & Red Cedar


THE AVENUE West Jacaranda, Celtis & Red Cedar

Jacaranda

TONKIN STREET ILFORD TO MILNE

North Queensland Box HV Fraxinus Griffithii (Flowering Ash)

TONKIN STREET ILFORD TO MILNE

South Queensland Box Fraxinus Griffithii (Flowering Ash)

TONKIN STREET MILNE TO ASCOT

North Queensland Box Fraxinus Griffithii (Flowering Ash)

TONKIN STREET MILNE TO ASCOT

South Queensland Box HV Fraxinus Griffithii (Flowering Ash)

TORRENS STREET North Fraxinus Griffithii (Fowlering Ash)

LV Fraxinus Griffithii (Fowlering Ash)

TORRENS STREET South Fraxinus Griffithii (Fowlering Ash)

Fraxinus Griffithii (Fowlering Ash)

TYNE STREET North Koelreuteria Paniculata (Golden Rain)


TYNE STREET South Koelreuteria Paniculata (Golden Rain)


VALE STREET North Queensland Box, Bottle Brush, Jacaranda & Eucalypt

HV Fraxinus Griffithii (Fowlering Ash)

VALE STREET South Queensland Box, Bottle Brush, Jacaranda & Eucalypt

To be redeveloped


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VICTORIA AVENUE East Celtis, Sophora & Golden Rain

HV Pyrus calleryana (Bradford Pear)

VICTORIA AVENUE West Celtis, Sophora & Golden Rain

Celtis Australis

VICTORIA

TERRACE AND

THE MEWS

No plantings No plantings

VIEW ROAD North East



VIEW ROAD South West



WALKERVILLE TCE LANSD. TO SMITH

North Jacaranda, Queensland Box, Eucalypt

Jacaranda

WALKERVILLE TCE LANSD. TO SMITH

South Jacaranda, Queensland Box, Eucalypt

HV Jacaranda

WALKERVILLE TCE SMITH TO

STEPHEN

North Pistashia Pistashia

WALKERVILLE TCE SMITH TO

STEPHEN

South Pistashia HV Pistashia

WALKERVILLE TCE STEPHEN TO

N/COTE

North Sophora & Golden Rain Jacaranda

WALKERVILLE TCE STEPHEN TO

N/COTE

South Sophora & Golden Rain LV & HV

Jacaranda

WALLACE STREET North Bottle Brush LV Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

WALLACE STREET South Bottle Brush Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

WARE STREET East Queensland Box, Bottle Brush


WARE STREET West Queensland Box, Bottle Brush


WARWICK STREET East Lagerstroemia “Eavesii” (Crepe Myrtle)


WARWICK STREET West Lagerstroemia “Eavesii” (Crepe Myrtle)


WASHINGTON


(Golden Rain) and Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

LV Koelreuteria Paniculata (Golden Rain) and Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)


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WASHINGTON


(Golden Rain) and Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

Koelreuteria Paniculata (Golden Rain) and Callistemon ‘Harkness’ (Gawler Hybrid Bottlebrush)

WATERMAN

AVENUE East Queensland Box LV Lophostemon conferta

(Queensland Box)

WATERMAN

AVENUE West Queensland Box Sophora japonica (Pagoda

Tree)

WILLIAM ROAD North Golden Rain Koelreuteria Paniculata (Golden Rain)

WILLIAM ROAD South Golden Rain LV Koelreuteria Paniculata (Golden Rain)

WILLYAMA

AVENUE West Jacaranda UG

Jacaranda

WILPENA AVENUE North Manchurian Pear & Eucalyptus

HV Pyrus calleryana “Red Spire” (Flowering Pear)

WILPENA AVENUE South Manchurian Pear & Eucalyptus

Pyrus calleryana “Red Spire” (Flowering Pear)

WILSDEN STREET North Koelreuteria Paniculata (Golden Rain)


WILSDEN STREET South Koelreuteria Paniculata (Golden Rain)


YANDRA STREET East Queensland Box Pyrus calleryana “Red Spire” (Flowering Pear)

YANDRA STREET West Queensland Box LV Pyrus calleryana “Red Spire” (Flowering Pear)

YORK STREET North Queensland Box, Manchurian Pear


YORK STREET South Queensland Box, Manchurian Pear



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C:\DOCUMENTS AND SETTINGS\WILTHO\LOCAL SETTINGS\TEMPORARY INTERNET FILES\OLK10DB\TREE PROCEDURES MANUAL DEC 2011 DRAFT TRIAL.DOC

APPENDIX 2

STANDARD LETTER TO RESIDENT TO ENCOURAGE CARE OF STREET TREE

Dear Resident, As part of Walkerville Council’s programme to beautify your street and enhance the local environment, a Manchurian Pear tree (Pyrus ussuriensis) has been planted on the road verge on your property frontage on …/…/… . The Manchurian Pear is a deciduous tree which grows to a height of seven metres, with green leaves that turn to rich colours in Autumn and display white flowers in Spring. Council encourages road verge development with residents, and as part of that programme Council now seeks your cooperation in caring for the street tree, especially providing it with water during Summer which is critical for the tree’s survival. The tree will achieve better growth if it is watered once a week during summer by filling the bowl and plastic pipe provided at the base of the tree. Council is able to assist with watering every three weeks.

If you have any further questions, please telephone Council’s Team Leader Works, Jeff Sandford on 83427160. Thank you for your cooperation. Enjoy the benefits your tree will provide shade and enhance the beauty of your street. Yours faithfully Executive Planning & Infrastructure


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APPENDIX 3

PLANTING GUIDELINES FOR STREET TREES


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APPENDIX 5

GUIDELINES FOR THE TRANSPORTATION, HANDLING AND DISPOSAL OF INFESTED OR DISEASED MATERIAL

1. Identify the insect or disease found

• note the location of the infestation or damage

• contact the proper authorities (Department Primary Industry) 2. Inform Council tree maintenance operators, and local residents of any quarantine measures

that are to be taken 3. Treat and dispose of infested or diseased material to minimise the spread of disease

• infested or diseased prunings and felled trees should be destroyed by burning, fumigation or deep burial in accordance with EPA regulations

• diseased material should not be mulched or recycled unless this is approved by the relevant authorities

• establish safe routes of transport for diseased materials that do not include principal roads or streets

4. Sterilise pruning equipment if disease is present or suspected on the tree being pruned 5. All old plant material should be raked up and buried in a deep pit in late autumn or in spring

before new growth begins


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APPENDIX 6

STANDARD LETTER TO RESIDENT INFORMING THEM OF PEST TREE REMOVAL

Dear Resident (species) is a recognised community pest plant and an aggressive invader of our parks and native bushland where it rapidly excludes all other plants, especially native species which attract native animals and can provide resources of food, shelter and, habitat. With this in mind Council will undertake (species) removal located ......................................................................................... on....................................... (date) and undertake replanting, where appropriate, with native species, site and location suited, which have been propagated from local indigenous stock. Where these plants are not available Council may elect to either use alternative species or delay planting until such time local indigenous species are available. Should you have any questions regarding this work please contact Council’s Team Leader Works, Mr Jeff Sandford on 8342 7160. Yours faithfully Executive Planning & Infrastructure


Page 38



2.5

m

2.5

m


Page 39



2.5

m

2.5

m


Page 40



APPENDIX 8 (A)

TRAFFIC SIGNAL CLEARANCE


Page 41



APPENDIX 8 (B)

PEDESTRIAN CROSSING SIGNAL CLEARANCE


APPENDIX 9

DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES INFORMATION FOR PERMIT TO COLLECT NATIVE PLANT MATERIALS

A permit from the Minister for Environment and Conservation is required to collect native plant materials from Forest Reserves, National Parks and Wildlife Reserves, Crown Land and any other land reserved for, or dedicated to public purposes, such as roadsides and local council reserves. Written approval from the management authority responsible for the land must also be obtained prior to collection of native plant materials. No permit other than the written permission of the landowners is required to collect native plant materials on private freehold or perpetual lease land unless the plant is a prescribed species or the land is under a Heritage Agreement. Consent from the Minister for Environment and Conservation and the landowner is required if the land is under Heritage Agreement. For collecting native plant materials on land held under pastoral lease permission must be obtained from the lessee and, if it is for commercial purposes, the Pastoral Board. Approval is not normally given to collect native plant materials on National Park and Wildlife Reserves. However, an application may be considered in situations where the native plant materials to be collected do not impact upon a species, the native plant materials are to be used either on, or immediately adjacent to the Reserve for conservation purposes, and the native plant materials are not readily available from other local sources. A permit is usually issued for a period of 12 months and may be subject to conditions that are intended to limit any impacts of native plant materials collection on the environment. Standard conditions include:

• The permit holder must have the prior written consent of the authority to whom care and control of the land has been committed.

• Native plant materials collected must be used for propagation and replanting purposes and not for sale. (For non- commercial collectors.)

• Native plant materials must only be collected from healthy plants that have neighbouring plants of the same species within 20 metres. Collection from five or more plants of the same species, at a distance of at least 100 metres between plants, is also encouraged in order to maximise the genetic diversity of seed collected.

• No more than 20% of the seed stock are to be removed from anyone plant. (May be varied, depending on particular circumstances.)

• Standard practices to minimise the risk of spreading soil pathogens (eg phytophthora) must be used.

• The permit is to be carried at all times and is to be produced to a Department for Environment and Heritage (DEH) Officer upon request.

• When collecting native plant materials from public land, vehicles should not be taken off existing roads and tracks. Other conditions may be imposed which limit the amount of native plant materials to be collected, the area within which native plant materials can be collected or the species from which native plant materials may be collected. Under the provisions of the Act a report on the species, amount collected and locality where collected must be submitted within 14 days of the termination of the permit. COLLECTORS MUST HAVE THE WRITTEN PERMISSION OF THE LANDOWNER.


APPENDIX 10

TREE EVALUATION

Evaluation completed by ……………………………………………………..Date:………………………………… Species:………………………………………………… Location: ………………………………………………….. Height x Spread (m):………………………………….

Characteristics

Age: ................................ Juvenile □ Semi-mature □ mature □ senescing □

Form: Balanced □ slightly unbalanced □ major imbalance □ pollarded □ coppiced □

Pruning history: Thinned □ reduced □ raised □ pollarded □ flush cuts □

cabled / braced □ none □

Significance: Significant Tree Register □ Commemorative plant □ rare / threatened □

unusual □ screen □ landscape feature □ cultural value □

valuable specimen □ poor specimen □ no significance □

Vigour

Foliage colour: Normal □ chlorotic □ Epicormic growth □ Y □ N

Leaf density: Normal □ sparse □ Leaf Size: normal □ small □

Wound wood development: good □ average □ poor □ none □

Vigour class: good □ average □ poor □ severe decline □

Pests / diseases? ……………………………………………………………………………………………………..

Local Conditions

Landscape character: lawn □ specimen bed □ windbreak □ island □ other □ Irrigation: none □ automatic □ adequate □ excessive □ trunk regularly wetted □

inadequate □ Recent site disturbance: Y □ N □ bed renovation □ construction □ level change □

soil disturbance □ other □ Exposure to wind: open position □ below canopy □ above canopy □ recently exposed □

canopy edge □ history of wind throw □ protected position □ Prevailing wind direction: ………………………………………

Threat in area

Use under tree: building □ park staff □ landscape □ pedestrians □ recreation □

vehicle □


Frequency of use: rare □ intermittent □ frequent □ constant □

Can target be moved? Y □ N □ Can area be restricted? Y □ N □ Tree Faults

Root defects: suspected root rot: Y □ N □ Fungi present: Y □ N □ Location: …………………..…

Exposed / undermined roots: low □ moderate □ severe □ none □

Root pruned: ……….distance from trunk Root area affected ……% Buttress wounded: Y □ N □

Restricted root area: low □ moderate □ severe □ N/A □ Potential for failure: low □ moderate

□ severe □ N/A □

Lean: N/A □ natural □ unnatural □ self-corrected □

Decay in plane of lean: Y □ N □ Roots broken: Y □ N □ Soil cracking: Y □ N □

Lean Severity: low □ moderate □ severe □ Soil heaving Y □ N □ Compounding factors: ………………………………………………………………………………………………..

Crown Defects

Defect Root Collar Trunk Major Scaffold secondary

Bend / Sweep

Borers / termites / ants

Cavities

Co-dominance , forks

Cracks, splits

Deadwood / stubs

Decay

Excessive weight

Fungal presence

Girdling

Hangers

Included bark

Multiple attachments

Nest hole / hive

Peeling bark

Poor taper

Previous failure

Wounds

Total Defects

Hazard Assessment


Tree part most likely to fail: ………………………………………………………………………………………….

Inspection period: annual □ bi-annual □ other □ …………………………………………………….…..

Formula

Failure Potential + size of part + threat rating = Hazard rating

………………….+ ……………. + …………… = ……………… (Hazard rating: 3-4 low; 5-6 moderate; 7-10 high; 11-12 severe)

Failure Potential: 1 – Low; 2 – Moderate; 3 – high; 4 severe

Size of part: 1 - less than 15cm; 2 - 15-45cm; 3 – 45-75 cm; 4 – greater than 75cm

Threat rating: 1 – rarely used; 2 - intermittent use; 3 – frequent use; 4 – constant use

Hazard Abatement

Prune: remove defective part □ remove deadwood □ remove epicormics □ close area □

independent assessment □

Inspect further: root collar □ aerial □ monitor □

Remove: Y □ N □ Replace: Y □ N □ Close area: Y □ N □

Effect on adjacent trees: N/A □ Evaluate □ Other: …………………………………………………………

Comments / Action

…………………………………………………………………………………………………………………………..…

………………………………………………………………………………………………………………………….….

……………………………………………………………………………………………………………………………..

Date work completed: …………………………….Signature: ………………………………………………………..