 In addition to these federal highways, Ramsey County is served by a number of Minnesota State Highways, including MN 36 and MN 51 which are divided highways for much of their length.The county also has jurisdiction over 264.108 miles of County State Aid Highways as well as 21,031 miles of county roads and 59 bridges that are maintained and monitored by the Public Works Department of Ramsey County.Ramsey County is a major freight hub along BNSF's Northern Transcon route, as well as being served by Union Pacific and Canadian Pacific.