Environment Agency bosses will hold talks with landowners at the end of this month to agree a river link between Donington and Surfleet.
The body has identified a ‘broad corridor’ to connect the Black Sluice Navigation at Donington Bridge with the River Glen, but the route has yet to be chosen.
Each of the possible routes currently on the drawing board will involve major engineering works such as locks, bridges, pumping stations and moorings.
Joining the two South Holland waterways is part of the massive £200million Fens Waterway Link, which will open a navigation from Lincoln through to Ely through Boston – where there are plans for a new marina to boost tourism on the town’s waterways.
Philip McLoughlin, from the Environment Agency’s engineering and environmental consultants, Halcrow, said it could be 2021-2026 until there is money available to do the work.