I can't see how they (the Harbour) can expand into Nigg Bay without much dredging & landscaping, as it is quite a shallow bay - plus you run into the eastern end of Torry...come to think of it, on you go!!!
Anyway, the Cooncil have just announced this apparently:
#Aberdeen Crockett - 32m for new link road at Dyce Dr. Link to airport and #awpr .
Msge on tw*****.