the three-member Board of Commissioners the permanent government of the District of Columbia. The act also had the effect of eliminating any remaining local institutions such as the boards on schools, health, and police. The Commissioners would maintain this form of direct rule for nearly a century. The first motorized streetcars in the District began service in 1888 and spurred growth in areas beyond the City of Washington's original boundaries. In 1888, Congress required that all new developments within the District conform to the layout of the City of Washington. The City of Washington's northern border of Boundary Street was renamed Florida Avenue in 1890, reflecting growth of suburban areas in the County of Washington. The city's streets were extended throughout the District starting in 1893. An additional law passed in 1895 mandated that Washington formally absorb Georgetown, which until then had maintained a nominal separate identity, and renamed its streets. With a consolidated government and the transformation of suburban areas within the District into urban neighborhoods, the entire city eventually took on the name Washington, D.C. In the early 1880s, the Washington City Canal was covered over. Originally an expansion of Tiber Creek, the canal connected the Capitol with the Potomac, running along the north side of the Mall where Constitution Avenue is today. However, as the nation transitioned over to railroads for its transport, the canal had become nothing more than a stagnant sewer, and so it was removed. Some reminders of the canal still exist. South of the Capitol, a road named Canal Street connects Independence Avenue, SW, and E Street, SE (although the northernmost section of the street was renamed Washington Avenue to commemorate the state of Washington). A lock keeper's house built in 1835 at the eastern terminal of the C&O Canal (where the C&O emptied into Tiber Creek and the Potomac River) remains at the southwest corner of Constitution Avenue, NW, (formerly B Street, NW) and 17th Street, NW (see: Lockkeeper's House, C & O Canal Extension). The western end of the City Canal emptied into the Potomac and connected with the C&O Canal near the lock keeper's house. One of the most important Washington architects of this period was the German immigrant Adolf Cluss. From the 1860s to the 1890s, he constructed over 80 public and private buildings throughout the city, including the National Museum, the Agriculture Department, Sumner and Franklin schools. The