Announcement From The Water Commission Of The Cantabrian Hydrographic Confederation, O.A., Of Public Information On The Authorization File For The Demolition And Permeabilization Works Of The Erratzu Weir, In The Public Hydraulic Domain Of The Baztán River, On Plot 36 Polygon 55 In Erratzu, In The Municipality Of Baztan (Navarra). File A/31/04985.