The Northern Middlesex Council of Governments is moving forward with a new corridor study and feasibility analysis for the Rourke Bridge, Drum Hill Road, and Wood and Westford streets to identify river crossing and roadway improvement alternatives. The first public meeting on the corridor study was held Tuesday at Lowell General Hospital.  The study will examine existing traffic patterns and conditions and explore the possibility of replacing the bridge, which was built as a temporary span almost 30 years ago to connect Lowell and Chelmsford on the south side of the river to Dracut and Tyngsborough on the north side. Other key components of the project include roadway improvements that can be made in conjunction with the bridge project. For more information and to view a map of the project study area, visit rourkebridgestudy.com.