Not everyone knows that the development and the birth of the city of Bologna was possible thanks to the Chiusa di Casalecchio, La Chiusa di Casalecchio is an artificial barrier built in the mid-fourteenth century along the course of the river Reno that allows to derive a part of the water of the river to exploit them artificially through an eponymous canal (the Reno canal), which has largely contributed to the economic fortunes and hydraulic defense of the city of Bologna from the Middle Ages to the present day.
The Chiusa and the hydraulic works connected to it are the expression of a paleo-industrial technology of great monumental and landscape impact and should be considered as one of the most interesting and significant sites of "archeology of the waters" in Europe.
The EFFETTO BLU event gives the opportunity to explore historical-technical sites not normally accessible to the public, whose history spans the centuries from the thirteenth century to the present. Suspended between the river and the canal and surrounded by the landscape of the Parco della Chiusa, you can visit the walkway built in the 16th century, whose project was attributed to the genius of Jacopo Barozzi, known as il Vignola, perhaps the best known and most famous architect representative of the late Renaissance. You will be able to admire the monumental hydraulic work up close, whose slide is 160 m long and 35 m wide, with a difference in height of 8.25 m, and discover the still present functional importance of the Chiusa, whose conservation and maintenance are taken care of by the Consortium of the Chiusa di Casalecchio and the Canale di Reno. Furthermore there will be shows at the Paraporto Scaletta, the Centrale della Canonica, the green island and the lido.
The day of April 13 will turn blue and will focus on detecting the importance of water, with the aim of safeguarding and promoting the hydraulic heritage of the Municipality of Casalecchio to its citizens and tourism.