Explore details about location 国道４号. 国道４号 is a location situated within the 一戸町 alongside other areas such as 八戸自動車道 (Hachinohe Expressway), 一戸山形線, 二戸一戸線. Additionally, some smaller parts of 国道４号 include specific areas like 一戸浄法寺線, 二戸一戸線, 八戸自動車道 adding to the diversity of its landscape.