 When the roads commission assigned numbers to state highways in 1927, Solomons Island Road was designated MD 2.By 1934, the Maryland State Roads Commission proposed Solomons Island Road be widened from to from Owings to MD 509.The first upgrades to MD 2 between Solomons and Prince Frederick occurred in 1937, when the highway was widened and resurfaced with bituminous stabilized gravel from Prince Frederick south to Port Republic.