The cost of building the Purple Line light rail in Prince George’s and Montgomery counties has increased to $2.15 billion, according to the Maryland Department of Transportation.

The $227 million increase from $1.93 billion is the second price jump the project has seen in the last two years. In May 2011, the price of the 16-mile line between New Carrollton and Bethesda rose from the original estimate of $1.5 billion.