The Longnan–Heyuan Expressway (s=龙南—河源高速公路), commonly referred to as the Longhe Expressway (s=龙河高速公路), is a 127 kilometers that connects Longnan County, a county under the administration of the city of Ganzhou in the province of Jiangxi, and Dongyuan County, a county under the administration of the city of Heyuan, in the province of Guangdong.