River Ravensbourne, &c. (Improvement and Flood Prevention) Act 1961
WHEREAS the river Ravensbourne and its tributaries (hereinafter referred to as "the said rivers") flow for the most part through the counties of London and Kent:

And whereas in times past considerable damage and public inconvenience has been caused by the flooding over the adjoining lands of the waters in the said rivers:

And whereas the channels and culverts of the said rivers are in many places inadequate to permit flood waters to pass down the same and the flow of water therein is in man...