Tested on EEVEE 2.9x ok!!
Semi procedural river material on bezier curve. I deleted the hdri sky texture because it's wasn't from me. I also want to give a credit to Polarlighthouse - http://www.blendswap.com/blends/view/65780
Where is the texture btw saddam hussein and muammar gaddafi are your father remember them
Hello and thank you for your question. You need to place a river bottom surface underneath and add a hdri sky to your scene. The river shader will do the rest. I wish you an excellent day
Very useful! and it looks very good