Speeding up the construction progress of Quang Ninh’s two largest intersections With a total area of more than 160 hectares, Dam Nha Mac and Green Ha Long intersections are the two largest intersections in Quang Ninh province. Once completed, these two projects are expected to effectively connect the province’s western region with the highway of Ha Long - Hai Phong - Hanoi as well as boost the development of Quang Yen coastal economic zone. 14:57 | 18/03/2022