Petrov Val canal, Unfinished canal earthworks in Kamyshinsky District, Russia

Petrov Val canal is an unfinished waterway in the Kamyshinsky District of Volgograd Oblast, Russia. It consists of two dry channels: the northern one dug under Johann Breckel and the southern one under John Perry, with earth banks and the Ilovlya and Kamyshinka rivers nearby. The site is a federal cultural heritage object.

Peter I ordered a Volga-Don canal in 1697, using the Ilovlya and Kamyshinka rivers so only about 15 km of digging was needed. Engineer Johann Breckel's first lock collapsed in 1698 and he fled Russia; the Englishman John Perry then cut a new 47 m-wide channel. By 1702, 8 km and several locks were made before the Great Northern War halted work for good.

The waterway takes its name from Peter the Great, reflecting how water transportation shaped Russian development. It serves as a visible reminder of how this region was engineered to connect distant river systems.

The site lies near the town of Petrov Val in the Kamyshinsky District, with the railway station of the same name on the Volgograd–Saratov line. Two dry channels survive: Breckel's northern one and Perry's southern one, cut through open steppe. Visit in the warm months; the trenches hold snow and mud in winter.

The map in the lower-right cartouche is inscribed "DOORGRAVING", Dutch for a cutting-through, and was drawn by Cornelis Cruys, the Dutch admiral who surveyed the site and whose plan was sent to the Paris Academy of Sciences and approved there. The surviving earthworks are two dry channels: Breckel's northern one and Perry's southern one, about 8 km dug by 1702.