Mayor Williams, along with representatives from the National Capital Revitalization Corporation, the Anacostia Economic Development Corporation and DRI Partners today broke ground on the first new construction in the historic core of Anacostia in 15 years. From the mayor’s office:The building will offer 14,000 square feet of retail space, 49,000 square feet of Class A office and related space, and 112 sub-grade parking spaces. Called Anacostia Gateway, the project is part of a larger scheme…