Structural Calculation And Design Services For The Main Viaduct Over The Guadalquivir River And Extraordinary Dynamic Supervision Of The Construction Projects Developing The “Se-40 Motorway. Section: A-4 Junction (Dos Hermanas) – A-8058 Junction (Coria Del Río)”, With Codes: 14-Se-5130.A And 14-Se-5130.B. (EXPIRED)