He decided to decorate the Summer Garden with fountains supplied by water delivered by gravity feed.

A small river, Liga (now called the Dudergofka), near (Dudergofskoye Lake), became the source of the water.

Except for the basic function of activating the fountains, the canal was used as a water main and as a defensive boundary, protecting the capital from the southeast.

Near to a railway line the Liga canal waters go underground and come to the surface near the Krasnenkaya River.

[1] The filled in Ligovsky Canal became a hindrance to the subsequent construction of a metro station Ploshchad Vosstaniya - a wet stratum greatly complicated works.