Widening of what was now called Constitution Avenue NW began at the end of February 1931 with the city finalizing its engineering plans. The city commissioners ordered the $168,500 widening project to begin on May 13, 1931. A small memorial column, marking the point at which water reached inland during the terrible 1889 Potomac River flood, was moved because of the street widening. The CFA, meanwhile, began to study ways to harmonize the treatment of Constitution Avenue NW, the Lincoln Memorial Grounds, and the Arlington Memorial Bridge.