The lack of uniform width along Constitution Avenue proved problematic. With little fanfare, the city began widening the entire roadway to . In September 1933, the city received the first disbursement of revenue from the federal gasoline tax. This tax was imposed in the Revenue Act of June 1932. The city used $30,494 in PWA grant money and $45,741 in federal gas tax revenue to widen Constitution Avenue to the full width between North Capitol Street and 2d Street NW. This project, which occurred in conjunction with clearance of Upper Senate Park, began in late September 1933.