2470 East Helen Street: 190423-Tue2470 East Helen Street: Old to New / By Stephen / Leave a Comment Drilling holes for retaining wall dead soldiers Drilling holes for retaining wall dead soldiers DriIlling dead soldier holes with cement. Drilling dead soldier holes with cement. TODAY’S STATUSThey drilled the holes for the temporary retaining wall dead soldiers. The dead soldiers were positioned so they are completely surrounded by cement (e.g. not touching the bottom of the hole).