黑龙江延寿县尚(志)方(正)公路,沿线经过山区和洼地很多,两旁地形复杂,每年冬季暴风吹雪埋没路基,形威大量积雪,严重阻碍交通。仅据1956年冬至1957年春统计,沿线严重积雪地点长达13公里,积雪量达13万立方公尺之多。1957年秋,尚方公路展开了设置冬季公路防雪设备工作,在积雪严重地段设置了防雪设备。经过两年的大雪考验,除有一小部分因经验不足,设置地点不当,以 Yanshou County, Heilongjiang Province still (Chi) side (positive) highway, along the mountain through a lot of depression and depression on both sides of the complex, every winter blizzard buried roadbed, form a large number of snow, a serious impediment to traffic. According to the statistics from the winter of 1956 to the spring of 1957, the site of severe snow accumulation along the route was as long as 13 kilometers with a snow accumulation of more than 130,000 cubic meters. In the autumn of 1957, Shangfang Highway started the work of setting up winter road snow prevention equipment and setting up snow prevention equipment in serious snow cover. After two years of heavy snowfall, except for a small part due to lack of experience, improper setting of places