Commercial agriculture in Zimbabwe is heavily dependent on irrigation and uses 79% of the abstracted water, while domestic use is 14% and industry is 7%.  The resuscitation and future growth of the Zimbabwean economy is dependent upon the availability of adequate water supply for domestic, industrial and agricultural use, Zimbabwe boasts the highest per capita water bodies in Africa and there are plenty of opportunities for investors in the water and sanitation subsector.
Investment Opportunities In Dam Construction

More information on investing in Zimbabwe can be found on the following links:

Zimbabwe Investment Authority (ZIA):
http://www.investzim.com

ZimTrade:
http://www.tradezimbabwe.com