| Factor | Explanation based on experts opinion |
| Slope (Topography) | The gentle the slope the better |
| Geology | Stronger foundations are preferred for dam construction |
| Soil type | The lower the soil infiltration rate , the better |
| Land Cover | Land cover prone to soil erosion are less conducive for dam construction |
| Proximity to Rivers | The nearer the dam to the river i.e. ≤1000 m, the better |
| Proximity to roads | The nearer the dam to the major roads buffer i.e. ≤1000 m, the better |
| Catchment size | The bigger the catchment size , the more water it can provide for the dam |