List of Articles Open Access Article Abstract Page Full-Text 1 - The Effect of Sed iments Particle Size on Bridge Abutments Scour Open Access Article Abstract Page Full-Text 2 - Evaluation of Buried GRP Pipes by Finite Element Method and Utilization of the AWWA-M45 Standard Open Access Article Abstract Page Full-Text 3 - Study of Effective Factors on Sediment Transport Conditions in Seasonal Rivers and its Comparison with Permanent Rivers Open Access Article Abstract Page Full-Text 4 - Study the Sediment Load in Lateral Intakes on Direct Routes by Using Numerical Models Open Access Article Abstract Page Full-Text 5 - Study of Wavelength and Frequency of the Waves from Perpendicular to the Flow of the Vortex Obstacles in Open Channels Open Access Article Abstract Page Full-Text 6 - Numerical Simulation of Hydraulic Impacts on Vertical Drop in Rectangular Channel Open Access Article Abstract Page Full-Text 7 - Seasonal Reviews of Karkheh River Water Quality in terms of Agriculture Based on Various Qualitative Hamidieh Station Open Access Article Abstract Page Full-Text 8 - Investigation of Reservoir Length on Dynamic Analysis of Concrete Dam Based on Dam-Reservoir-Foundation Systems Interaction Using Finite Element Method