Bidding Adif - Presidency Announcement. Object: Drafting Of The Construction Project And Execution Of The Works For The New Automatic Protection Installation Of The Level Steps In Kilometer Points 14/776 And 151/900 And The Renewal Of The Level Steps In The Kilometer Points 39/810.73/512, 113/035 And 116/154 Belonging To The Line 430 Bifurcation Córdoba - El Higuerón - Los Prados. File: 3.25/27507.0076.