Espino de Marotta said that some male colleagues questioned her appointment and is quoted as saying, "I wear the pink hard-hat to make a statement that a woman can do this job.

Alongside responsibility for the physical expansion of the canal Marotta also oversaw other investment projects including, all the construction contracts, new bridges and purchasing.

Every month during the expansion phase of the project, she directed a videography team from a helicopter to monitor work on the canal.

In 2012, Jorge Luis Quijano suggested that Espino de Marotta replace him as the executive vice president on the Panama Canal Expansion Project.

[7] Espino de Marotta was awarded "Outstanding Woman of the Year" in 2014 by the Panamanian Association of Business Executives.