Sightseeing:

The Victoria Falls Bridge was commissioned by Cecil John Rhodes in 1900, although he never visited the falls and died before construction began, he expressed his wish that the "railway should cross the Zambezi just below the Victoria Falls. I should like to have the spray of the falls over the carriages."

The bridge affords a magnificent view both down the gorge on the one side and through to the falls on the other. The immense depth of the gorge can be fully appreciated from this perspective and combined with the sea green river below, the shiny black rock face and lush green foliage, the 360 degree view from the bridge is breathtaking.

Creation of Victoria Falls:

It is thought that earth movement in an earlier geological period diverted the south-easterly flowing upper Zambezi to a general easterly direction and so initiated the development of a waterfall in an area occupied by a massive bed of basalt which is about 305 m thick.

The basalt, through which the Zambezi runs for 209 kms in the Livingstone area is characterised by very marked joints or cracks, which may have developed as the molten lava cooled. One dominant series of joints running in an east-west direction is associated with zones of soft material within the basalt.

Since the Zambezi is flowing due south in the Livingstone area, these softer materials are very easily eroded to form the great east-west gorges. Upstream retreat of the Falls is due to a second major series of joints running north-south. Gradual erosion of small joints that run north-south caused the river to be concentrated into a narrow fissure and the broad fall line was abandoned. Once this happened, it was only a question of time before the narrow gorges cut back into another transverse fracture zone of soft material. This gouging out of the soft zone again established a broad fall. This process has been repeated over many years and the zigzag gorges represent seven previous lines of Falls.

The Devil's Cataract, on the Zimbabwe side, which is 21-37 m lower than the rest of the present falls, shows how the force of water is starting to cut back along such a line of weakness. It will probably erode its way back to another east-west joint where a future line of the falls will eventually become established.

 

*Information gathered from Zambia Tourism Website.