Primary School, and its weir and sluices have been retained. The drop in level of some between the mill pond and the river beyond has enabled the school to harness the river to generate electricity. Its 7 kW crossflow turbine generating a significant proportion of the energy used by the school, was funded by a grant from Powergen's Green Plan fund and a Clear Skies grant. Flowing around the northern edge of Cuckney, the river reaches the site of a second corn mill which was situated to the east of the village. The mill has been demolished, but the sluices and weir are still visible. Welbeck Lakes Beyond the mill site are two channels, the western at the level of the mill pond, and the eastern at a lower level. Both channels head towards the first ornamental lake supplied by the river. At this point, the river has dropped some from its source. Welbeck Great Lake is part of the Welbeck estate, which was owned by the Dukes of Portland, and now owned by the Bentinck family. Millwood Brook flows into Gouldsmeadow Lake and through Shrubbery Lake, before joining the Great Lake. In the 1760s, the duke employed the architect and civil engineer Robert Mylne to construct a three-arched bridge, which had to be both functional and beautiful. Mylne experienced problems with the piers moving, which resulted in the central arch collapsing in February 1768, after which Mylne was sacked. In the 1840s, the fifth duke, who built an underground ballroom and tunnels on the estate, employed the engineer William Tierney Clark to construct a suspension bridge. The resident engineer for the project was Bland William Croker, who had assisted Clark with the construction of the Szechenyi suspension bridge in Budapest. The western channel of the Poulter flows through a culvert into the Great Lake, while the lower eastern channel flows through a culvert into Carburton Forge Dam. Beyond the lake, a weir with a track over it drops the level to Carburton Forge Dam, built to provide power for a forge. In 1695 of land were leased to John Wheeler of Worcester by the duke, on which he built the forge, a dam pool and floodgates. Deeds held by the Nottinghamshire Archive Service record an agreement between Wheeler and the duke to pay compensation annually as a result of the stream supplying the forge flooding the duke's land. The