The Purpose That Is Intended To Be Satisfied Through This Contract Is To Have A Construction Project That Design, Describe And Value The Necessary Works To Carry Out The Restitution Of The Environment In The Dam Of The Old Dusol Hydroelectric Power Station On The Brugent River In The Hostoles Plains. The Project Must Analyze The Possible Alternatives Of Total Or Partial Demolition Of The Dam And Project The Chosen Alternative That Will Allow The River Continuity To Be Returned To This Section Of The Brugent River, Included In The Natura 2000 Network.