The $2.1 billion Red & Purple Modernization is rebuilding northern portions of the Red Line from Belmont to Howard and the Purple Line from Belmont to Linden in Wilmette. It involves a bypass and the rebuilding of four stations. Construction started in 2019 and is to be completed in 2024. The Red Line Extension is a 5.6-mile project that will extend the line from 95th Street to 130th Street and add four stations. The federal infrastructure law is making the project a reality. Construction could begin by 2025 and be completed in 2029.