The cruise up the River Yarra this afternoon was relaxing and informative. Apparently there used to be flooding in the past and one of the solutions to the problem was to straighten out some of the meanders in the lower reaches. This left some of the old meanders as pools (rather like oxbow lakes for any of you geographers!) and some of these have been turned into ornamental lakes in the Botanic Gardens.
There are two tunnels under the Yarra and one of them was built before the river was redirected to its present location. The Morrell Bridge, seen here, was similarly built before the river’s course was changed, so for a whole year motorists drove over it before there was any water under it!
Our Cap’n told us about these litter traps. Apparently forty thousand tons of rubbish are collected annually in traps like this at the Yarra riverside from litter washed down from the surrounding area.
Jean
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