Chiang Mai Municipality started a major cleanup on Monday as the huge flood that hit the northern city began draining off.
Tractors and water trucks were used to help workers remove mud from areas around three bridges crossing the Ping River. Other crews and volunteers continued to supply food and drinking water to houses still cut off by floodwater.
The Chiang Mai Municipality advised drivers some sections of seven main roads were still closed, including Chang Khlan and Charoen Prathet, which are in popular tourist and business areas.
The depth of the Ping River continued to drop, with 3.85 metres at the Naowarat monitoring station at 10am. The Ping reached a historic peak of 5.3 metres on Saturday night.
The levels of the Rim and Taeng rivers and of the Ping in Chiang Dao district had also dropped. The Rim and Taeng rivers supply water to northern Chiang Mai.