: I–4 Beyond the Ultimate (BtU) comprises six design segments and several interim projects — all with the goal of rebuilding and improving 40 miles of Interstate 4 (I–4). I–4 Beyond the Ultimate is an extension of the I–4 Ultimate project that continues the reconstruction of I–4 20 miles to the east and 20 miles to the west. This project covers segments 1A, 1B and 2.