So I went and had a look at the new marina sites this evening... No pics, sorry, it was almost dark!
On the flash "Ripple UK" site, a stone road has been laid from Davenham Road to the "sunken boat" flash, and as someone else commented there are some pegs in the field. Not much else yet though. I can't open the council documents site, so I don't know what the development is supposed to look like, but I don't see how they will get 90 boats in unless they enlarge the flash?
On the towpath side on the other side of Davenham Road, the other new marina is a very large hole. Jetties are in the course of construction, some with decking, and brick abutments for a towpath diversion entrance bridge have been built (but no bridge deck yet), and although some piles have been sunk for the entrance "funnel", there is no activity yet on the towpath. If it ever gets finished, this is going to be a big marina! That said, nothing seems to have moved on very much. Does anyone know which company is developing this (planning application, perhaps?)?