Reservoir Named after Catchment River Coordinates (all co-ordinates based on GoogleEarth searches) Year(s) constructed Capacity Cost
Grey Sir George Governor Kowie River system Tributary of the Bloukrans River 33° 19' 26.68"S
26° 31' 39.8"E
1859 – 1861 15 million gallons £ 6000+
Douglas Lt. Governor, Sir Percy Douglas Kowie River system Tributary of the Bloukrans River 33°19’ 14.78”S
26° 31’15.91”E
1866 - 1867 7 million gallons App. £1038
Hamilton Col. R.G. Hamilton, Royal Engineers Kowie River system Hamilton stream, a tributary of the Bloukrans River 33°19’ 00”S
26°30’50.83”E
1866 – 1868 7 million gallons £ 1863
Milner Sir Alfred Milner, High Commissioner and Governor of the Cape Colony New Years River Coldstream, Slaaikraal valley 33°18’ 42.70”S
26°25’ 42.55”E
1898 45 million gallons £35000
Jameson Sir Leander Starr Jameson, Prime Minister of the Cape New Years River Coldstream, Slaaikraal valley 33° 26’15.63”S
26°26’15.63”E
1904 - 1905 140 million gallons £ 6946
Howison’s Poort Farmer, Alexander Howison, who supervised construction of the Howison’s Poort pass, 1832. Kariega River Palmiet-Berg Rivers 33° 23’15.06”S
26° 29’14.66”E
1929 - 1931 60 million gallons £110 000
Settlers The 1820 Settlers Kariega River Palmiet-Berg Rivers 33°24’ 43.27”S
26°30’ 35.19”E
1960 - 1962 880 million gallons £156 000 or R440 000
Settlers Dam wall raised The 1820 Settlers Kariega River Palmiet-Berg Rivers 33°24’43.27”S
26°30’35.19”E
1981 - 1982 1 2 R500 000
Glen Melville Farm No.197 in Brakrivier Map 3326 BA Gariep – Great Brak – Great Fish 3 Gariep – Gt. Brak – Gt.Fish - Brak 33° 11’ 6.76"S
26°39’19.61"E
Glennie Construction (dam) & Grinaker (purification) 6 million m3 with 10 ‘slugs’ per annum @ 12 m3/sec Dam: R1 402 948 Purification: R3 497 385

Note 1: The exact dates are not known and this is an approximation.
Note 2: The increase in capacity due to the raised wall is not known.
Note 3: This is an interbasin transfer scheme (IBT).