The next phase of expansion started in the late 1550s and continued through the rest of Elizabeth I's reign. From about 1560, the work was largely under the direction of Richard Popynjay. The ramparts were updated and the gabions along the edge of the Camber and the palisade that cut off Portsmouth point were replaced by stone wall. Other works including improving the various towers with some of them developing into bastions. The Mount defending the town gate was reconstructed, developing into what could be considered a true bastion in the process. The saluting platform also saw some rebuilding work during this period.