Paving work for canal locks

Paving work for canal locks

Paving work for canal locks

Inv. 9099
1952 - 1953

The model represents a section of the bottom of a canal lock. The various layers composing it are highlighted: a layer of tiled paving, a fill of stone, and a foundation of double-depth piles held together by cords and metal pivots. Leonardo’s drawing probably refers to studies for the lock of San Marco, which allowed connection between the Naviglio Martesana and the city’s inner moat. The system of construction, based on rows of piles driven into the ground and connected by transverse pieces, emphasizes the need to ensure a good retaining quality not only at the sides of the lock but also at the bottom, in consideration of the notable water pressure deriving from the differences in water level before and after the lock.

The model is based on the drawing:

  • Manuscript L f. 19 r (1502-1503)
    Paris, Institut de France