This project will fund the design, replacement, and expansion of the 16th Street Substation along the Metra Electric (ME) Line. The rectifiers are several decades old, difficult to repair due to a lack of spare components, and they have long exceeded their useful life. This project is a prerequisite for additional service capacity. The project is part of an ongoing program to repair and replace components of the electrical power distribution system and will allow for additional trains to be scheduled.