The Effra formed the southerly boundary to the common .
c1500 BC Recently discovered post stumps in the south Thames foreshore near Vauxhall Bridge point to a ritual jetty or possibly the first London bridge , by the outlet of the River Effra .
The River Effra formed the southerly boundary to the common .
c1500 BC Recently discovered post stumps in the south Thames foreshore near Vauxhall Bridge point to a ritual jetty or possibly the first London bridge , by the outlet of the River Effra .