2015-16 Annual Report 2015-16 Annual Report | Page 146

Toowoomba Regional Council Notes to the Financial Statements for the year ended 30 June 2016 Note 1. Significant Accounting Policies (continued) Any revaluation increment arising on the revaluation of an asset is credited to the appropriate class of the asset revaluation surplus, except to the extent it reverses a revaluation decrement for the class previously recognised as an expense. A decrease in the carrying amount on revaluation is charged as an expense to the extent it exceeds the balance, if any, in the revaluation surplus of that asset class. threshold are capitalised and depreciated on the same basis as the asset to which they relate. On revaluation, accumulated depreciation is restated proportionately with the change in the carrying amount of the asset and any change in the estimate of remaining useful life. Depreciation methods, estimated useful lives and residual values of property, plant and equipment assets are reviewed at the end of each reporting period and adjusted where necessary to reflect any changes in the pattern of consumption, physical wear and tear, technical or commercial obsolescence, or management intentions. The condition assessments performed as part of the annual valuation process for assets measured at depreciated current replacement cost are used to estimate the useful lives of these assets at each reporting date. Details of the range of estimated useful lives for each class of asset are shown in note 12. Separately identified components of assets are measured on the same basis as the assets to which they relate. Capital work in progress The cost of property, plant and equipment being constructed by the Council includes the cost of purchased services, materials, direct labour and an appropriate proportion of labour overheads. Depreciation Land is not depreciated as it has an unlimited useful life. Depreciation on other property, plant and equipment assets is calculated on a straight-line basis so as to write-off the net cost or re-valued amount of each depreciable asset, less its estimated residual value, progressively over its estimated useful life to the Council. Management believe that the straight-line basis appropriately reflects the pattern of consumption of all Council assets. Assets are depreciated from the date of acquisition or, in respect of internally constructed assets, from the time an asset is completed and commissioned ready for use. Where assets have separately identifiable components that are subject to regular replacement, these components are assigned useful lives distinct from the asset to which they relate. Any expenditure that increases the originally assessed capacity or service p