Cerchia dei Navigli, Historic canal network in Milan, Italy
The Cerchia dei Navigli is now a ring of streets around Milan's centre, following the course of the medieval moat that became a navigable canal. The canal was 6.5 km long and 9 m wide in its navigable part, and was completely buried from 16 March 1929 under the Beruto Plan. Only the south-east section was ever navigable; the north-west stretch, near Castello Sforzesco, remained a non-navigable moat feeding the castle ditch.
The moat was dug from 1156, designed by the Genoese military engineer Guglielmo da Guintellino during Milan's wars with Frederick Barbarossa; the earth from the excavation built the bastions. Rebuilt after 1162 and refilled from 1171 with water from the Seveso, Nirone and Olona, its south-eastern stretch became a navigable canal between 1387 and 1496 under the Visconti and the Sforza. It was buried from 16 March 1929 under the Beruto plan.
The name survives in the ring of streets that follows the buried channel, and the eight medieval gates and eleven pusterle once opened along this line. Porta Ticinese still stands, the only gate with a single arch, and the rebuilt Pusterla di Sant'Ambrogio has two arches, as imposing as a gate. The Pusterla dei Fabbri, named for the blacksmiths' quarter it served, was demolished in 1900 despite Luca Beltrami's opposition; fragments are kept in the Castello museum.
The canal no longer exists: it was buried from 16 March 1929 under the Beruto plan, so today the route is a ring of streets around the medieval centre. Follow it on foot along Via Carducci, Via Pontaccio and the southern arc to read the old perimeter. A project aims to reopen only the south-eastern navigable stretch.
The ring of streets that bears the name today follows the buried canal's course; the water itself was covered from 16 March 1929 under the Beruto plan, the city's first regulatory plan, with works finished the following year. A project is under way to reopen the navigable south-east stretch along the street ring.
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