For practitioners considering similar interventions elsewhere in the Mediterranean: (1) where budget allows, commission at least basic ERT or TEM survey lines before finalising structure locations, particularly in areas with known clay or evaporite horizons that could behave very differently from the surrounding alluvium; (2) plan for the access and logistics costs of remote wadi locations from the outset, since these can be a larger share of total cost than the structures themselves; (3) treat community engagement and agreed maintenance responsibilities as a precondition for construction, not an afterthought, since structures without a clear local maintenance arrangement are more likely to silt up or fall into disrepair over time; and (4) where possible, link any new water-harvesting investment to an existing, externally monitored programme (such as IFAD-PRIDE in this case) so that independent reporting and evaluation already exist rather than needing to be built from scratch.