CALGARY, CANADA  (WKZO) --Enbridge officials say they plan to replace the entire 6-B pipeline that runs through lower Michigan and Northern Indiana. They initially just planned to replace short sections of the 43-year-old oil conduit.

Their just released plan is to make it bigger, more secure, and capable of moving more oil. Because of the spill near Marshall and concerns about it's structural integrity, Enbridge has not been permitted to run the current pipeline at full pressure or capacity. 

A company spokesman says the replacement is not related to the 2010 spill that dumped over 800-thousand gallons of Canadian Heavy Crude into Talmadge Creek and the Kalamazoo River. Nearly two years later, they are still trying to remove all the oil from the contaminated area.

Work on the new pipeline, which will run next to the old pipeline, will begin this summer and could be completed by the end of 2013.

 The old line will be flushed and filled with inert gas and mothballed.