On Wednesday the Obama Administration recommended funding for two CTA projects that will include an overhaul of the Purple line, and the North branch of the Red Line starting from the Belmont stop to Howard. 

The two projects are estimated to cost about 4.7 billion, and CTA plans to seek 1.5 billion for the core capacity program. 

Construction for the Red-Purple Line project could potentially begin in three to four years according to CTA spokesman Brain Steele.

Source: Chicago Tribune