The renovation of the New Orleans Ernest N. Morial Convention Center, the sixth largest convention center in the nation, created a new 60,000-square-foot, column-free ballroom, the largest in the New Orleans area. The structure has been dubbed 'The Great Hall' in reference to the Convention Center's first use as the Great Hall of the 1984 World's Fair. The new technologically advanced space features high-end finishes appropriate for major, high-profile events such as Mardi Gras balls, convention-wide dinners, and formal political occasions. In addition, Manning enhanced the Julia Street entrance to provide visitors with a grand 'sense of arrival' as they approach the mile-long facility from its downtown face. The Manning design created an appropriately appointed executive conference center with an outdoor rooftop terrace and lounge.

Manning’s close coordination with the project manager helped keep construction costs within budget on this significant renovation. Additionally, the convention center was kept operational during construction and the project was delivered on time.