国道338线中卫至孟家湾段公路全线沥青铺设完毕 预计年底通车

Core Points - The asphalt paving of the Heishanxia Yellow River Bridge on National Highway 338 from Zhongwei to Mengjiawan has been completed, with the entire highway expected to open by the end of the year [1][3] - The total length of the National Highway 338 project is 15.45 kilometers, with an additional 2.011 kilometers for the connection line on the southern bank of the Shapotou Peninsula [3] - The project has faced significant construction challenges due to its high elevation and numerous bridges, making it one of the more complex and costly ordinary national highway construction projects in recent years [3] Investment and Economic Impact - The total fixed asset investment for the National Highway 338 from Zhongwei to Mengjiawan has reached 830 million yuan, with an engineering completion rate of 98% [3] - The completion of this highway is expected to enhance the traffic capacity of National Highway 338, ensuring safe and efficient transportation in Ningxia, and promoting economic and social development in Zhongwei and the broader Ningxia region [3] Technological Advancements - The project utilized high-elasticity and high-viscosity modified asphalt concrete for the paving, along with colored snow-melting modified asphalt concrete in specific high-standard areas, improving road performance and integrating ecological considerations [3]