Nakajima Sekimon is a double-star type water gate, with a total length of 86.0m and a width of 9.09m, equipped with a hinged gate. - Name: Nakajima Sekimon - Location: Nakajima, Toyama City, Toyama Prefecture - Type: Double-star type - Gate: Miter (hinged) - Total Length: 86.0m - Width: 9.09m - Regulating Water Level: Approximately 2.5m - Management: Toyama Prefecture - Completion Year: 1934 (Showa 9) This was obtained during a boat trip in September 2025.