 The Heathcote river in Beckenham has burst its banks and has gone onto Eastern Terrace, making some parts of the road impassable.
<clarity>  The Heathcote river in Beckenham has burst its banks and has gone onto Eastern Terrace, making some parts of the road impassable.
 The Heathcote river in Beckenham has inundated areas in Eastern Terrace, making some parts of the road impassable.