CHAPTER 18.2 ROLL-UP OPERATION Except for delays caused by safety considerations, except for min-~ or modifications of originally contemplated procedures to comply with instructions of the AEC Resident Engineer, and except for minor changes to meet unanticipated post experiment conditions, the published roll-up procedure has been or is being followed. Table 18.1-1 indicates the assignment of roll-up activities to departments of H & N and shows sche- duled and actual completion by dates and percentages. TABLE 18.2-1, ROLL-UP STATUS AS OF JULY 15, 1951 Progress - % iten_ Scheduled Actual 100% 100% Scheduled Completion Remarks Design Dept. Damage Survey and Completion Report Data Campleted July 6 t. Zero Area Crater Surveys September 15 Delayed by radio- activity in zero area High Tide Line Survey Existing Structures Survey 67% 50% August 5 5% 10% September 15 Tope 1000! Radius Zero Areas for 1! Contour October 1 To start July 15 November 30 To start Resurvey High Tide Lines at 4-Month Interval Revise Precise Con- trol Field Sketches 18-2 37% 50% September 1 Oct. 15