Private inspectors at MGM Mirage's CityCenter project in Las Vegas found contractors were working from unapproved engineering plans, according to the Las Vegas Sun. Developers are supposed to have modified plans approved before work is performed. However, this practice is not always followed, as some projects go forward with edited plans to avoid costly time lapses. The documents looked at by the Sun show no clear connection between structural integrity problems at the site and the use of unapproved plans.
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