Bifurcated Structure

 From:  Mindset (IGNITER)
8563.1 
How is it best to model a Bifurcated Structure?
I attempted to Sweep each edge and then top it off with a planar section.





I doubt that this is the best way to accomplish the task.

It seems to leave some artifacts in the surface at the tangent.



Comments, suggestions please.
-- MindSet