This project funds the replacement of Bridges A110 and A56 on Metra’s Milwaukee District North (MD-N) Line. Both bridges were constructed in 1909 and span the North Branch Chicago River. Bridge A110 is located in Northbrook at milepost 21.3 and Bridge A56 is at milepost 10.85 in Chicago just south of the Edgebrook station. This is a multi-year, multi-phase project that will fund design engineering services and any environmental analyses as required by the National Environmental Policy Act (NEPA). Construction funds are provided in later years.