This project includes removing and replacing existing rail in the Nagle Curve area on the O’Hare Branch of the Blue Line. Project replaces the existing rail with new continuous welded rail at Nagle Curve. The new rail will be set into the existing plates with 100% replacement of double studded pads, heavy duty insulators, and pandrol e-clips. Work also includes a track survey to record the track geometry (profile, alignment, cross level and gauge), clearances, and the location of the track.