ran from US 29 and Eastern Avenue in Silver Spring east to another intersection with Eastern Avenue where Blair Road enters Washington, D.C. in southeastern Montgomery County. The highway was constructed as a macadam road in 1923. MD 184 was removed from the state highway system in 1999 as part of the highway swap to designate the Great Seneca Highway as MD 119. MD 194 Maryland Route 194 was the designation for Flower Avenue from MD 195 in Takoma Park north to former MD 516 in Silver Spring in southeastern Montgomery County. The highway was paved from MD 195 to MD 320 by 1927. MD 194 was involved in a three-way number swap in 1956; the original MD 71 became modern MD 194 and MD 71 was applied to what is now US 301 from Queenstown to the Delaware state line. The original MD 194 became MD 787, which was removed from the state highway system in 2012. MD 196 Maryland Route 196 was the designation for Columbia Pike from US 29 in White Oak north to MD 198 in Burtonsville in eastern Montgomery County. The highway was built as a macadam road from White Oak north to Randolph Road in 1930 and completed to Burtonsville by 1933. MD 196 was temporarily applied to the course of modern Columbia Pike from Burtonsville to Columbia after that part of the highway was completed in 1953. The parallel divided highway Columbia Pike was completed from north of Paint Branch to Burtonsville in 1956; MD 196 was removed from Howard County the same year. MD 196 was applied to the portion of the new highway from Paint Branch to White Oak until US 29 was placed on the new Columbia Pike in 1960. MD 196 was split in two when its bridge across Paint Branch was closed in 1966. The main portion of Columbia Pike on the west side of US 29 from north of Paint Branch to Burtonsville was transferred to county control between 1975 and 1977. The two segments of MD 196 on either side of Paint Branch on the east side of US 29 remained until they were transferred to county maintenance in 1999. MD 199 Maryland Route 199 was the designation for Glenn Dale Road from US 50 (now MD 450) north to the Washington, Baltimore and Annapolis Electric Railway in Glenn Dale in central Prince George's County. The