Years ago, I had a fine stone wall around a garden. When ivy and other plants grew on the wall, the roots could grow between the rocks and slowly push large rocks out of the wall. Without constant maintenance, the whole wall would have fallen down.

Now every day as I travel north out of central Brighton at Preston Circus, I look up at the beautiful viaduct, high over the A23 (Preston Road).

There are bushes and trees growing up there. How long before some masonry falls down and kills somebody? How long before the structure is weakened and a passing train's vibrations cause a large section of the viaduct to collapse?

Somebody should do something about the huge plants growing up there before there is a disaster.

-Mike Jackson, Brighton