FACTS ABOUT LAKE KARIBA & DAM WALL

KARIBA DAM WALL : .. . ..Built between 1955/1959
TYPE :............. .. ..... . . . . Double curvature Concrete Arch
HEIGHT ::........ . ... ....... . 128 metres
CREST :...... .... . .......... . .Length : 617 metres
WIDTH : :......... ............ . .13 metres. 24 metres at base
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VOLUME OF CONCRETE : 1 032 000 cubic metres
SPILLWAY ::..................... 6 flood gates : 9.0 metres x 8.8 metres
: :......................:...............Flow through 1 gate at maximum retention level
: :......................:...............1574 cubic metres per second = 136 000 000 000 lts/day

STILLING POOL Depth : . . 78 Metres (maximum)
Volume ::..................... . . 335 000 cubic metres

COST ::........ . .... .. ..... . . Quoted at £ 80 million .....Eventually cost £ 122 million

:............. .. . ....... .. ..... . . 86 workers killed on site
:............. .. . ..... . .. ..... . . Designed by Andre Coyne
:............. .. . ....... .. ..... . . Built by Impresit (Italy)

POWER STATIONS ::. . ....Turbo Generators South Bank : 6 x 111 megawatts
: :............. .. ..... . . . . . . . Total 666 meg.
:............. .. ..... . . . . . . . . North Bank : 4 x 150 megawatts
: :......... .... .. ..... .. . . . . . Total 600 meg.

KARIBA DAM RESERVOIR Length : 280 km
. . . . . . . . . . . . . . . . . . . . . Width : Widest : 32 km
. . . . . . . . . . . . . . . . . . . . . Average : 18 km

MAXIMUM RETENTION LEVEL : . 487.8 metres (above mean sea level)
MINIMUM OPERATING LEVEL :. .474.8 metres (above mean sea level)
SURFACE AREA AT M.O.L :. . . . 5,580 sq km. (same size as Wales!)
:
This would be enough water to supply Greater London for 300 years!

MEAN ANNUAL EVAPORATION : 1.56 m. This drop will expose 236.25 sq. km. of land
AVERAGE DEPTH : . . . . .. 20 metres
DEEPEST : . .. . . . . . . .. . .120 metres
SHORELINE : . . . . . . . . . ..2,000 kms
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