Assessing of the Morphology and Sediment Transport of Diyala River


  • Wafeek Abood Jassam College of Engineering - University of Baghdad
  • Basim Sh. Abed College of Engineering - University of Baghdad



Diyala River, Capacity improvement, HEC-RAS software, Sediment transport model.



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. The fieldwork period extended from June 2020 till August 2020, where suspended-load and bed-load samples were collected and surveyed some cross-sections. The one-dimensional sediment transport model has been calibrated for five years, from 2014 to 2019. The results were compared with the measured cross-sections in 2019,  and the suitable value of (maximum depth) was 120 cm for five years. The result of invert change from the simulation of the sediment model for real condition of the river from 2018 to 2019 ranged from0.2 m to 0.6 m. Moreover, the daily and yearly sediment discharge was equal to 227.7 tons/day and 83531.93 tons/year, which were previous studies carried out on this river. While the simulating results of the imposed period as five successive flood years give an invert change values varied from -1.25 to 1.4 m. The river's capacity was improved by rising the riverbank level for parts of the reach and/or training of cross-sections for other parts.


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• Al-Ansari, N.A. , AL-Sinawi, G.T. and Jamil, A.K., 1986. Suspended and solute loads on the Lower Diyala River, 14 (7), 225-235. Available at:

• Asaad, B., and Abed, B., 2019. Hydraulic characteristics of Tigris River within Baghdad city during drought conditions. Journal of Engineering, 3(26),77-92. Available at:

• Azarang, F., Telvari, A., Sedghi, H., and Bajestan, M.,2015. E valuating of Erosion and Sedimentation of Karkheh River at Downstream. Eco. Env.and Cons,21 (4), 1-13.

• Brunner and Gary W., 2016. HEC-RAS River Analysis System 1D and 2D Modeling User Manual US Army Corps of Engineers Hydrologic Engineering Center.Available at:

• Daham, M., and Abed, B., 2020. One and Two-Dimensional Hydraulic Simulation of a Reach in Al-Gharraf River. Journal of Engineering, 7(26), 28-44. Available at:

• Daham, M., and Abed, B., 2020. Simulation of Sediment Transport in the Upper Reach of Al-Gharraf River. Materials Science and Engineering,901(1),1-11. Available at:

• Kayyun, T., and Dagher, D., 2018. Potential Sediment within a Reach in Tigris River. International Journal of Hydraulic Engineering, 7(2), 22-32.

• Ministry of Water Resources MoWR, 2014-2019. Data on the water levels and hydraulic information of Diyala River.

• Ministry of Water Resources, MoWR. The General Authority for Surveying of the Ministry of Water Resources, 2014-2019. Data on the cross-sections and coordinates of the Diyala River.

• Mustafa, A., Sulaiman, S., and Al-Alwani, K., 2017. Application of HEC-RAS Model to Predict Sediment Transport for Euphrates River from Haditha to Heet. Al-Nahrain Journal for Engineering Sciences (NJES), 20(3), 570-577.

• Mustafa, A., Sulaiman, S., and Shahooth, S., 2016. Application of QUAL2K for Water Quality Modeling and Management in the lower reach of the Diyala river. Iraqi Journal of Civil Engineering,11(2),66-80.



How to Cite

Jassam, W. A. and Abed, B. S. (2021) “Assessing of the Morphology and Sediment Transport of Diyala River”, Journal of Engineering, 27(11), pp. 47–63. doi: 10.31026/j.eng.2021.11.04.