A dam is a barrier that impoonds watter or unnergrund streams. Reservoirs creatit bi dams nae anly suppress fluids but an aa provide watter for activities such as irrigation, human consumption, industrial uise, aquacultur, an navigability. Hydropouer is eften uised in conjunction wi dams tae generate electricity. A dam can an aa be used tae collect watter or for storage o watter which can be evenly distributit atween locations. Dams generally serve the primar purpose o reteenin water, while ither structurs such as fluidgates or levees are uised tae manage or prevent watter flowe intae speceefic laund regions.