Diyala River is one of the important rivers that provide water for the Governorate of Diyala. In this research. the morphology and sediment transport of this river were studied using HEC-Ras software. The selected length of the river in the present study is 193 km and extended from Diyala Weir to the confluence of Tigris River and Diyala River. https://www.herbsdailyes.shop/product-category/nutritionals-dietary/