By the time the scheme was completed, of the river channel had been rerouted, the Mother Drain had been extended to, and of catchwater drains had been built.
12.
The "'Catchwater Drain "'or "'Duckpool Catchwater "'is an artificial watercourse in Lincolnshire draining into the River Witham near to Stixwould.
13.
Two pastures ( south of Ferry Lane, between Lincoln Road and the Catchwater Drain ) are denominated Little Ferry Wong and Great Ferry Wong names that do not appear on modern maps.
14.
The Aldam Drain drains Cantley Low Common, and beyond the junction, the river becomes a high level carrier, with permanent embanking of both banks, and catchwater drains running along the foot of both banks.
15.
Just above the lock, the Beverley and Barmston Drain, which collects water from the catchwater drains on either side of the main channel, flows under the navigation in a tunnel, and runs just to the west of the river almost to its mouth.
16.
Conversely, the southern half of its passage through Lincolnshire and its northern end, near Washingborough, are accepted as having had a raised bank on each side; the one on the upland side would not be a feature well adapted to a catchwater drain.
17.
The district is divided into a number of compartments, as it is intersected by embanked rivers which cross the area, carrying water from the Car Dyke, which acts as a catchwater drain at the western boundary, to the Witham on its eastern edge.
18.
One conclusion, though given the conflicts in the surviving evidence one not reached by everyone, is that overall it was used primarily as a boundary, ( as part of it in south Lincolnshire undoubtedly was in the medieval period ) but that parts were adapted to serve also as a catchwater drain.
19.
Apart from the spring, most of the water of the river is collected by the Car Dyke, which, near Bourne, is arranged to act as a catchwater drain, gathering the surface water of the upland and feeding it via the Bourne Eau and River Glen to the sea, without its entering The Fens.
20.
Grundy was approached in December 1768 by a group of landowners, and produced his first plans in February 1769 . They included a catchwater drain running along the western edge of the region to route several streams to a sluice on the Trent, a floodbank to prevent inundation by the river, and a Mother Drain with side drains to route rainwater to another sluice.
