CONTRACTING FOR THE PREPARATION OF TECHNICAL DOCUMENTS AND EXECUTION OF WORKS UNDER THE DESIGN-BUILD DELIVERY SYSTEM FOR THE PROJECT "IMPROVEMENT OF INTERURBAN ROAD ACCESSIBILITY SERVICE ON THE INCACHACA VEHICULAR BRIDGE IN THE DISTRICT OF C - CONTRACTING FOR THE PREPARATION OF TECHNICAL DOCUMENTS AND EXECUTION OF WORKS UNDER THE DESIGN-BUILD DELIVERY SYSTEM FOR THE PROJECT "IMPROVEMENT OF INTERURBAN ROAD ACCESSIBILITY SERVICE ON THE INCACHACA VEHICULAR BRIDGE IN THE DISTRICT OF CHALLABAMBA, PROVINCE OF PAUCARTAMBO, DEPARTMENT OF CUSCO"