What happens when you need a lake in the middle of a desert? You call the professionals. W.J.Castle P.E. & Associates and Portadam design and implement innovative solutions to real world problems for our clients worldwide. Recently, Castle and Porta-Dam teamed up to deliver an artificial lake to the 2013 International Defense Exhibition and Conference (IDEX) in the United Arab Emirates. The IDEX Organization needed a lake in the middle of a desert large enough to display the abilities of several ships at once, as well as entertain their visitors. The temporary lake installed by Portadam was over 700’ long and accommodated everything the IDEX required.