River Gipping
During 1791, when the Trustees were negotiating with John Rennie, they had asked him to assess an extension of the navigation from Stowmarket to the River Lark at Bury St Edmunds, but this was not pursued. With the navigation thriving, there were two proposals for canals from Ipswich to Eye, Suffolk in 1819. A meeting was held in January at Eye, which was chaired by Charles Cornwallis, 2nd Marquess Cornwallis. It considered two reports, one proposed by the civil engineer William Cubitt, which involved a tunnel through the hills at Mendlesham, with the estimated cost exceeding £100,000, and another, for a canal over the hills, costing £80,000. Both were thought to be too expensive to implement, but a third proposal emerged, for an extension from the River Gipping at Needham Market, which would follow the valley of a tributary through Creeting St Mary to Earl Stonham, where a basin would be built beside the turnpike road (now the A140 road). This would enable waggons to make a round trip from Eye in a single day, rather than the two days that a trip to Ipswich took. The scheme was estimated to cost £12,000, and shares in it were offered at the meeting. Although many were taken up, the scheme did not advance any further.
Chippawa, Ontario
Being above Niagara Falls, Chippawa is the location of water intakes to electric power plants located below the falls. The Welland River is used as an intake from the Niagara River to feed a power canal originating west of the village, leading to reservoirs on the Niagara Escarpment above Queenston. This diversion actually causes the Welland River to flow backwards from its natural direction, taking water out of the Niagara River. Reconfiguration of the mouth of the Welland River to accommodate this purpose has completely eliminated the Chippawa Cut, as well as the island it had created (known as Hog's or Hogg's Island). It also eliminated the original channel of the river, which is now part of King's Bridge park.
A short distance north of the village along the Niagara Parkway can be seen two monolithic structures - gates to underground tunnels which also carry water to the generating stations.