4. Definitions .-In this Act, unless the context otherwise requires, -
(a)"alteration of dam" means alterations or repairs as may directly affect the safety of the dam
or reservoir; (b)"annual report" means a report giving the activities of the Authority and the State Dam
Safety Organisation and the safety status of the specified dams falling under their jurisdiction
during each financial year; (c)"appurtenant structu re" means the structure being - (i)spillways, either in the dam or separate therefrom; (ii)low level outlet structure and water conduits such as tunnels, pipelines or penstocks,
either through the dam or its abutments or reservoir rim;