The government may, therefore, need a supplementary midyear budget for economic rehabilitation, said Deputy Prime Minister Kittiratt Na-Ranong.
Nakhon Sawan governor Chairot Meedaeng on Wednesday’s morning declared a state of emergency ordering immediate evacuation.
The water level rose additional 1.5 meters in the province.
Flood victims seeking shelter at the provincial administrative centre were ordered to move to the second floor to escape overflowing water.
Residents were advised to move their vehicles from flooded town areas to the Jiraprawat Army base.
The Dechatiwong Bridge, on the Asian Highway linking the province, was sealed off from traffic for fear of safety. It is feared that the strong water flow in the Chao Phraya River may have undermined the bridge's foundations.
Sawan Pracharak Hospital had to shut down the power at one of its buildings. Patients were moved to higher floors.