Bueng Chawak was originally a part of Tha Chin River. After a period of times, a part or the river branched off to form a crescent shaped lake tht took up some areas of Doem Bang Nang Buat district, Suphan Buri province, and Hankha district, Chai Nat province. In 1994, the Suphan Buri Provincial Authority and H.E.Mr.Banharn Silpa-archa, the Prime Minister, and various sectors, public and private. Initiated the Bueng Chawak Chalerm Phra Kiet Development Project to celebrate His Majesty the King Bhumibol Adulyadej's on his 50th Year Accession to the Throne.