At the top of the eastern ridge of the City of David, Nehemiah and the returned exiles built a new city wall. Although they simply repaired the pre-existing walls elsewhere in the city, the wall just above the steep Kidron Valley was too damaged and too difficult to mend. So they relocated the eastern wall higher up the slope and, according to author Eilat Mazar, built it directly on top of a ruined wall of King David’s palace (also known as the Large Stone Structure) and its massive rampart (known as the Stepped Stone Structure).