Document ID: chunk:federal_register_of_legislation:F2022L01461:reg:2018:p10
Version: federal_register_of_legislation:F2022L01461
Segment Type: reg
Provision Reference: reg 2018 (pt 10/14)
Character Range: 63357–67468

site's heritage values.
Conservation works, including restoration and reconstruction, or adaption works of the absolute minimum so as to continue the lighthouse's usefulness as an AtoN are the only works that should be actioned by AMSA on Mersey Bluff Lighthouse. Some exceptions are made for health and safety requirements, however any and all work carried out must be conducted in line with heritage considerations and requirements of the EPBC Act.
The table below demonstrates the level of sensitivity attributed to the various elements of the fabric register in the face of change. These are measured on a High – Medium – Low spectrum depending on the action's possible threat to the site's heritage values.
High sensitivity
              High sensitivity to change includes instances wherein a change would pose a major threat to the heritage value of a specific fabric, or the lighthouse. A major threat is one that would lead to substantial or total loss of the heritage value.

Moderate sensitivity
              Moderate sensitivity to change includes instances wherein a change would pose a moderate threat to the heritage value of a specific fabric, or would pose a threat to the heritage significance of a specific fabric in another part of the building. A moderate threat is one that would diminish the heritage value, or diminish the ability of an observer to appreciate the value.
Low sensitivity
              Low sensitivity to change includes instances wherein a change would pose little to no threat to the heritage value of a specific fabric, and would pose little to no threat to heritage significance in another part of the building.

Component                          Level of sensitivity                                                            Nature of change impacting heritage values

Mersey Bluff Lighthouse structure  High                                                                                * Changes to façade materials and design.

                                                                                                                       * Reduction of visibility of the structure on Mersey Bluff.

Low                                    * Repainting of structure in like colours.

                                       * Removal of asbestos and lead paint or other toxic materials.

Ground floor                       High                                                                                * Changes to façade materials and design.

Low                                    * Removal/replacement of battery cabinet.

Intermediate floors                High                                                                                * Removal of original slate floor slabs.

Low                                    * Repainting of original slate floor slabs in like colours.

                                       * Necessary corrective maintenance to cracked slate slab.

Stairs                             High                                                                                * Removal of the original stairs.

Low                                    * Repainting of stairs in like colours.

                                       * Necessary maintenance to corrosion.

Balcony                            High                                                                                * Changes to façade materials and design.

Medium                                 * Removal of 1889 sandstone slabs without suitable replacement.

                                       * Removal of 1889 wrought iron balustrades without suitable replacement.

Low                                    * Repainting of balcony floor or balustrades in like colours.

Lens assembly, pedestal            High                                                                                * Replacement of 700 mm non-rotating lens assembly.

Low                                    * Removal or replacement of Sealite LED.

                                       * Removal or replacement of pedestal.

Windows, doors                     High