http://www.legislation.gov.uk/asp/2019/2/notes/paragraph/3Explanatory Notes to Pow of Inchaffray Drainage Commission (Scotland) Act 2019Scottish GovernmentenKing's Printer for Scotland2019-01-24 2 17 January 2019 3 The Pow of Inchaffray (“the Pow”) is a drainage channel that provides drainage to surrounding lands in the local authority area of Perth and Kinross. It originates at Methven Moss and meanders in a south-westerly direction for approximately nine miles until it reaches the River Earn, about two and a half miles south east of Crieff. Together with its 10 main tributaries the Pow is the equivalent of 13.7 miles long. The function of the Pow is to drain a total area of surrounding land of approximately 2,047 acres. The arrangements for the management, maintenance and improvement of the Pow and appointment of Commissioners with responsibility for this were set out in the Pow of Inchaffray Drainage Act 1846 (“the 1846 Act”). The 1846 Act repealed a 1696 Act of the old Scottish Parliament entitled ‘An Act in favours of the Heritors adjacent to the Pow of Inchaffray’ and provided for new and more extensive powers to be given to Commissioners.