Ragama is a suburb of Gampaha, located in the Gampaha District, Western Province, Sri Lanka. It is governed by the Ja-Ela Divisional Secretariat. In July 1874 a rail line, known as the Breakwater line, was opened connecting the Harbour Works Quarry at Ragama to the Colombo Harbour breakwater, in order to enable stone to be transported to th…Ragama is a suburb of Gampaha, located in the Gampaha District, Western Province, Sri Lanka. It is governed by the Ja-Ela Divisional Secretariat. In July 1874 a rail line, known as the Breakwater line, was opened connecting the Harbour Works Quarry at Ragama to the Colombo Harbour breakwater, in order to enable stone to be transported to the harbor to construct the breakwater. Stone from a second quarry at Ragama was then used to stabilise the Coastal line where it ran on the edge of the beach.