Explore details about location 国道415号. 国道415号 is a location situated within the 射水市 alongside other areas such as 小杉本江線, 小杉本江線, 八町大門線. Additionally, some smaller parts of 国道415号 include specific areas like 片口牧野線, 白石西高木戸破線, 堀岡小杉線 adding to the diversity of its landscape.