Edward I, a common right of navigation on the Wye was recorded, with the channel to be kept free of weirs and other obstructions. Where these already existed, they were to be demolished at the owner's expense. Documents from 1561 and 1571 concerning water mills and weirs show that the river was used for navigation at the time. In 1622, a petition was raised by the counties of Gloucestershire, Herefordshire and Monmouthshire, together with the city of Hereford, that the river should be cleared of obstructions that made fishing and navigation difficult. A Commission of Sewers was appointed, but seems to have done very little, since most of the weirs belonged to the king. There were seven weirs on the river in 1641, to provide water power for mills and forges. During Cromwell's Commonwealth period, proposals were made to improve the river for navigation by building flash locks at the weirs, and dredging the channel to make it deeper. Although there were arguments for and against the proposals, Sir William Sandys was appointed in 1662 to oversee making the Wye and the River Lugg navigable. He had previously worked on the Warwickshire Avon to make that navigable. Some £1,300 had already been raised in the country, but it is unclear what he did with the money. He was assisted by Henry and Windsor Sandys, and they were given powers to construct a towing path, wide on both sides of the river, to allow boats to be hauled upstream. Although tolls could be charged, they also had to maintain the right of free passage which was long established on the river. Twenty Commissioners were appointed, ten from Hereford, five from Gloucester and five from Hereford. All weirs were to include an opening, so that salmon and other fish could migrate along the river. The scheme involved the construction of flash locks in channels cut to bypass the weirs, a system which Sandys had used with success on the Avon, but the Wye was a much faster flowing river, which meant that the solution was impracticable and very costly. It had been abandoned by 1668, as maintenance costs made the operation of boats unprofitable, and a new scheme, proposed by Lord Coningsby of Hampton Court, Herefordshire was to be implemented. All fishing weirs and mill weirs would be bought and demolished, while Sandys locks would be abandoned. The river bed would also