heritage assessment of trees and landscapes. what is heritage? something you inherit from ancestors...
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Heritage Assessment of Heritage Assessment of Trees and LandscapesTrees and Landscapes
What is Heritage?
Something you inherit from ancestors– E.g. A family bible, an old clock, furniture,
family physical characteristics, land
Items or places of high significance that are seen as a ‘gift’ for future generations– E.g. Natural landscapes, aboriginal artefacts in
caves, old towns and buildings in original condition
A view of what heritage is
NSW’s heritage is diverse and includes buildings, objects, monuments, Aboriginal places, gardens, bridges, landscapes, archaeological sites, shipwrecks, relics, bridges, streets, industrial structures and conservation precincts.
NSW Heritage Council Definition
Heritage consists of those places and objects that we as a community have inherited from the past and want to hand on to future generations.
Types
Cultural heritage– Results from human processes and activities such as
building, farming, creating artworks etc– More likely involvement for arborists
Natural heritage– Places of significant natural importance that are
largely unaffected by human process– Gloucester Tops, Cradle Mountain, Blue Mountains,
Fraser Island
Determining significance
Heritage consultants are trained in the field of heritage assessment, often with specialisations
The consultants need to have a broad view of the political and cultural context of the item and remain independent
Some important terms
Significance (cultural) Fabric Conservation Place Maintenance Preservation Restoration reconstruction
Adaptation Compatible use Curtilage Provenance Criteria and Criteron
Significance
Cultural significance Aesthetic, historic, scientific or social
value for past, present or future generations Natural significance emphasis aesthetic
and scientific aspects Based on scale, importance and uniqueness Scale from regional to global Importance to that community
Types of cultural significance
Architectural – Opera House Associational Significance – “Banjo
Paterson wrote Waltzing Matilda here”
Fabric
The stuff the item is made from Trees have an organic fabric that can be
preserved through propagation from the original
Is the fabric of the item of significance consistent with the era of the item’s construction and historic significance?
Conservation
All the processes of looking after a place so as to retain its cultural significance
Includes maintenance and may according to circumstances include preservation, restoration, reconstruction, and adaptation
Commonly a combination of all
Curtilage
Heritage buildings are usually main items Gardens and surrounds are deemed the
curtilage Includes fences and gates, trees, roads, old
building footprints etc Can be confusing because of previous sub-
divisions
Precincts
Usually consist of grouped heritage items that when grouped formed a significant heritage item.
Wallsend Civic precinct Surviving 19th Century Townscape Includes civic buildings and open space Sections of Raymond Terrace CBD
Raymond Terrace 1857
Maintenance
The continuous protective care of the fabric, contents and setting of a place
Window cleaning Washing and vacuuming Pruning trees and shrubs?
Preservation
Maintaining the fabric of a place in its existing state and retarding deterioration
Keeping old paintings and documents ‘preserved’ in climate controlled cases
Involves the concept of minimum intervention
Removing a strangler fig from an old tree?
Restoration
Restoring the EXISTING fabric of a place to a known earlier state by removing accretions or reassembling existing components without the introduction of new material
Using existing seed or plant material to re-vegetate areas degraded by time and neglect.
Reconstruction
Returning a place as nearly as possible to a known earlier state by the introduction of new materials into the fabric
Buying in new trees of the same species but not the original provenance
Provenance
The provenance of an artifact, commodity, or other object is the place and time of its origin.
Relates to the significance of the item
This tree was planted by ‘T.J. Smith on 14 November 1977’
Parramatta Park in 1888
Lady Fitzroy Memorial
Lady Fitzroy (governors wife and her aide were killed when their carraige overturned and the tree)
uses
Economic problems for many heritage properties
Cost of repair/restoration vs economic input into the property
Solution = Grants, donations Problem = grant applications and
evaluation times and costs
Adaptation and compatible use
Modifying a place to suit proposed compatible uses
Heritage sites may be used for commercial purposes and need adaptations to meet laws and regulations
Fire laws in old buildings require changes to electrical wiring . Old wiring is retained but disconnected, replacement wiring is discretely installed
What does this mean to an arborist?
Assessing heritage trees
Pinus pinea at Tomago House
St Pats Catholic Church at Broke – 100 years old
Pinus hallapensis at Broke
Is this a remnant of the Lone Pine?
Assess the structural integrity of the tree
Resistograph testing indicates internal structure and gives a guide to approximate age of tree
Stone Pine –Pinus pinea
Car parkingHazardous dead branches
St Pats
Historic church Trees are significant to the curtilage Intention is to maintain the fabric whilst
trees are relatively safe by pruning.
151 Maitland Rd, Islington
Historic avenue of Figs in Islington Park
Path to informal brothel
Air knife and shovels used to determine the extent of root activity and viability of development
Trench excavated and depth and extent of roots determined.
Results determined the viability of a development
Ian McKenzie
Assessing diameter and extent of root spread
Sandgate Cemetery
Pinus radiata Last pine left from
early plantings Significance linked to
original plantings from 1880’s
Earthquake caused collapse of original drains
Salinity due to rising water table
Podocarpus avenue
Salinity has caused eventual death
New plantings of Magnolia grandiflora
Singleton – 1 John St
Close proximity to New England Highway
Significant in size for species and linked to a historic precinct around old buildings along the river
Chainsaw damage
Hunter Water installed a sewer main
Tree was removed after Council accepted DA for construction of Auto Spare parts business to be built on site
Ficus at John St Singleton
Historic Precinct and established heritage zone
No link established by any heritage consultant (not even thought of by Council)
Current political climate with flying foxes affected emotions of Councilors who approved DA
Large old tree cut down for car parking
Assessing Heritage1. Summarise what is
known about item2. Describe the
previous and current use and historic associations
3. Assess significance using NSW heritage assessment criteria
4. Can a sound analysis be made of the item’s heritage significance
5. Determine the level of significance
6. Prepare a succinct statement of heritage significance
7. Get feedback
8. Write up all information
assessment criteria for an item of heritage
A. An item is important in NSW history (cultural or natural)
B. A strong association with the life or works of a person or group
C. Its important in demonstrating aesthetic characteristics and/or a high degree of creative or technical achievement in NSW
D. Special association with a community or cultural group
E. Item has a potential to yield information that will contribute to an understanding of NSW cultural or natural history
F. Possesses uncommon, rare or endangered aspects of NSW history
G. Is an important example demonstrating principal characteristics of cultural and natural places and environments
Grading Exceptional
– Rare or outstanding example – Wollemi Pine High
– High degree of exceptional fabric and demonstrates a key element of significance
Moderate– Contribute to the overall significance but not
of high value Little
– Alterations detract from significance Intrusive
– Damaging to the heritage of another item
More Information – some sources
Heritage Council of NSW Natural Heritage Trust – Telstra funds
($1.4 Bn) National Trust Historic Houses Trust Council LEP’s Council guidelines