Aquatic & Hydraulic Ingenuity - Emergency Bridge

This bridge was designed to be erected quickly under battle conditions.

Leonardo’s idea was that it could be constructed by a group of soldiers in an

emergency using small tree trunks found on the edge of a river.

The trunks are interwoven and braced without the use of ropes or nails in such a

way that the more downward pressure is applied, the more the braced pieces

of wood interlock and the more secure the construction is. Leonardo called it a

bridge of ‘Safety’.