They owe their name to the dike built to close off the valley of the Lodelinsart stream, creating an artificial pond to help protect the Charleroi fortress.

Rue de l'Hôpital took its name from the civil hospital that ran alongside it from 1844 to 1937, when it was demolished to make way for a school building in 1939.

Rue des Tonneliers was the site of Charleroi's first public Protestant place of worship.

The block, made up of insalubrious and, for the most part, old-built dwellings, was called "Sâle Dèbout" (dirty end, in French) by the inhabitants.

[7] Given the scale of the work and its location, archaeological monitoring will be carried out during the earthworks scheduled from May to October 2011.

[8] The main element is a section of curtain wall forming a pincer that crosses the excavation from north to south over a total length of 73m.

The bridge's five piers, some of which have been preserved, are made of large, carefully dressed rubble stone.

Here, the relief plan shows terraced houses with gardens that follow the triangular shape of the square.