The Mitsuzawa Route (三ツ沢線, Mitsuzawa-sen), signed as Route K2, is one of the tolled routes of the Shuto Expressway system serving the Greater Tokyo Area and is one of seven of the routes in the system serving Kanagawa Prefecture. The route is a 2.3-kilometer (1.4 mi) long expressway running west from a junction with the Yokohane Route in Kanagawa-ku, Yokohama, to the Daisan Keihin Road and the Yokohama Shindō in Hodogaya-ku, Yokohama in Kanagawa Prefecture. It serves as a radial route running west from central Yokohama.