2 from Prince Frederick to Solomons concluded in 1949 when the highway from Solomons north to the southern end of Lusby was relocated, resurfaced, and surfaced with bituminous stabilized gravel. MD 2 originally followed Armory Road through the northern part of Prince Frederick. By 1946, the highway had been relocated to its modern alignment and paved north of Armory Road to Sunderland. The bypassed portion of Armory Road was marked as MD 750 by 1950 but may have been removed from the state highway system by 1952. MD 2 was widened to and resurfaced with bituminous concrete through Prince Frederick in 1950. This improvement occurred contemporaneously with or shortly before the construction of the Prince Frederick bypass; MD 2 moved to the new wide bituminous stabilized gravel highway in the autumn of 1951. The bypass was resurfaced with bituminous concrete in 1954 and 1955. By 1956, the old road through the county seat was marked as the first section of MD 765. The route was paved between Owings and Edgewater by 1946. MD 2 from Owings to Edgewater starting receiving its first major upgrades in the 1950s, including several relocations of the highway. The bypassed portions of MD 2 became segments of MD 778, with the letter suffix on the highway designation corresponding to the order the sections were bypassed. The highway from Edgewater south to Harwood (then known as Butlers) was widened and resurfaced with bituminous stabilized gravel in 1950 and 1951. MD 2 from Harwood south to Lothian was widened and resurfaced with bituminous stabilized gravel in 1952 and 1953. Old Solomons Island Road between Harwood Road and Polling House Road in Harwood remained part of the state highway system until 1987. In 1960, MD 416 was designated concurrent with MD 2 between Solomons and Sunderland. In 1965, the MD 416 concurrency was replaced by an overlap with MD 4. Also, MD 2 was shifted to a new alignment between Sunderland and Owings, with the former route becoming MD 765. MD 2/MD 4 was widened to a divided highway between Huntingtown and the split in Sunderland in 1967. The divided highway was extended to south of Huntingtown in 1969, bypassing Huntingtown to the east. The former alignment through the community became MD 524. In 1970, MD 2/MD 4 became a divided highway between Prince Frederick and south of Huntingtown. In January 1978, MD 4 was rerouted north of