Flap Gate Weir at Klong Wang Bon Reservoir automationcontrolsystem 9 ปี ago The Klong Wang Bon Reservoir is located at Nahinlad, Pakplee, Nakornnayok province, Thailand. The Flap gate Weir of Klong Wang Bon was constructed by the reasons below :Enhancing an ability for water allocationSupplying water during dry season for local agriculturalSupporting local businesses