I was talking to Sean(2000) about this, as Leigh Skatepark is 10 mins from my house,
I had a look when I was at Leigh tip the other weekend, I think they are near to completion, but honestly, don't get your hopes up..., it's a skate area (literally), not really suitable for bikes, plus it has an outdoor activity centre type arrangement next to it.
I'll try and get down there and get some pics in the next couple of days..
Matt