The Journal of Water Management Modeling recently published "Study of Flow Around Developed Permeable Pile Groyne" by Andi Patiroi, Adi Hendra, Tia Hetwisari, and Sekaring Bumi Ingerawi. Read this paper to learn how to control river flow and bed changes using groyne construction. Visit www.chijournal.org to read this and other indexed papers relating to water management modeling.