Diepsloot R511 (William Nicol Drive) (A) SITE NUMBER : BB36-68 DESCRIPTION : R511 (William Nicol Drive) Diepsloot. Faces traffic traveling south from the N14, past Diepsloot, towards Jhb SIZE: 3m x 12m TRAFFIC : Reach : 377 086 Impacts : 3 580 840 GPS CO-ORDINATES : -25.923363, 28.022808