It's an asymmetric cable-stayed bridge, with the deck supported from an A-frame pylon sitting to one side of the lake channel. It has a main span of 80m, and is 150m long and 18.5m wide. The tower is 56m tall. Both the deck and the pylon are in reinforced concrete.
The bridge was designed by Babtie (now part of Jacobs) with Nicol Russell Studios, and built by Balfour Beatty. It shares a number of similarities to Nicol Russell's previous Leven Crossing bridge at Glenrothes. The design was reportedly the winner of a competition, although I've not found any details on that. The bridge won the ICE's North West Merit Award in 2005.
I never really like A-frame pylons, visually. I can't quite figure out what it is about them that I dislike. At Marine Way, an effort has been made to shape the head of the tower, but the legs themselves are still a bit too bland.
From above, the decision to anchor the cables directly into the edge beams, rather than through small cantilever stubs, seems a little unfortunate. It creates a level platform likely to attract people to hop over the main parapet, and hence needs protecting with awkward cables, as shown.
On the whole, it's certainly not an unattractive cable-stay bridge, but it does strike me as a little out of place, especially set against the other bridges which span this artificial lake (I covered one last time, and the other will be my next post). There seems no pressing reason to have to span the lake without intermediate piers, and an attractive bridge could have been designed which was far less expensive. Whether the bridge fulfilled its aim to act as a catalyst for regeneration, although looking at the surroundings, I doubt there is much that a more modest bridge wouldn't also have facilitated.