The construction of the Séquia of Manresa Historical milestone · Manresa, Bages, Barcelona Image of Manresa, not of the place itself. Between 1339 and 1383 the city opened a canal of almost thirty kilometres to bring water from the Llobregat from Balsareny and break the chronic drought of the plain. The work, of minimal gradient, still supplies and irrigates the municipal district. 1339-1383 Photo: Enrique Íñiguez Rodríguez (Qoan) (CC BY-SA 3.0) What to see and do in Manresa