Table 2: Maguga dam main features
Gross storage capacity |
332Mm3 |
Net storage capacity |
302Mm3 |
Full supply level (FSL) |
626m |
Water surface area at FSL |
1042ha |
Lowest drawdown level |
526m |
Non-overspill crest level |
634.3m |
Maximum height of dam wall above lowest founding level |
115m |
Total length of dam wall |
870m |
Nominal rated total capacity of outlet works |
50m3/sec |
Gross catchment area |
6471km2 |
Gross natural mean annual run-off |
797Mm3 |
Gross afforested mean annual run-off |
720Mm3 |
Mean annual precipitation |
950mm |
Incoming regional maximum flood peak |
7800m3/sec |
Incoming probable maximum flood peak |
15,000m3/sec |
Source: Swaziland Komati Project Enterprise