Owada no tomari is described in "Iken Fuji Junikajo" (twelve opinions to the Emperor Daigo) by Kiyoyuki MIYOSHI in 914 and was one of Seppan Gohaku which were built by a daisojo (a Buddhist priest of the highest order) Gyogi during the Nara period.
大輪田泊は、延喜14年（914年）の三善清行の『意見封事十二箇条』に、奈良時代に大僧正行基が築いたとして記される行基摂播五泊のひとつである。