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.
Nipissing River
The river begins at Big Bob Lake in geographic Paxton Township and flows east, passes briefly through geographic Butt Township and geographic Devine Township, turns north into geographic Biggar Township, then back east, over Stewart's Dam and through the Allen Rapids, and into geographic Osler Township. It continues east over Graham's Dam, the High Falls and Gauthier's Dam, enters geographic Lister Township, flows over the Perley Dam and Rolling Dam, and empties into Cedar Lake on the Petawawa River, across the lake from the community of Brent. The Petawawa flows via the Ottawa River to the Saint Lawrence River.