CHAPTER II!t, SECTION 3 Estimating functions performed for Operation CASTLE entailed such activities as: (1) the preparation of preliminary estimates which reflected the total cost of anticipated construction, engineering, camp operations, maintenance. support services and roll-up services; (2) original estimates, prepared after engineering design was authorized and formally submitted to .the Field Manager; and (3) current estimates, which included the cost of any and ail changes that deviated from the preliminary design. The estimated construction cust, when approved, became the official cost used to determine the Contractor's fee for approved construction. other Departments. These important departmental functions included such activities as Contract Administration, Budget and Accounting, Industrial Relations, Procurement, and Engineering at both the Home Office and in the field. All cost estimates prepared during Operation CASTLE followed an established pattern, which delatted ol seyrezated the relevant elements as foliuws: t. The items of direct labor, direct material, equipment usage, and batch and aggregate plant production were considered as direct costs and were estimated for cach job on the basis of similar work in the Zone of the Intenor. te progress engineer, anda one property records engineer. This group was supervised by a Principal Engineer working directly under the HEN Resident Engineer's supervision. When authorized changes in design occurred after release of the current estimate, a revised current estimate was issued which included the cost of any additions or deletions from the original design. This estimate superseded the previously issued current cost estimate in its entirety. Special studies were also prepared to supply general information or comparative data for the proper determination of design, manpower requirements, or construction schedules. A copyof all estimates was supplied to the Jobsite for use and reference in reporting progress, aad for preparing monthly completion estimates where it was found that the latest current cost estimate deviated from the field estimate ‘‘to complete” by ten per cent. This information was included in each monthly cost statement of work in progress. wtpoe Lig Data originated or assembled by Estima. teem WAS vee Aten i USEG IT seenele Work a r orformes! . . Type of Estimate Cost studies Budget forecasts Preliminary Cost Estimates Original Cost Estimates Current Cost Estimates Total - All Types ha . : In accordance with previous experience at the Pacific Proving Ground, other expenses were estimated as follows: a. Indirect as 65° of combined direct labor and direct material. b. Operations as $4.50 per man-hour of the estimated direct labor. c. Ficld Engineering as 4.75 of total estimated construction cast of cach project. d. Engineering design as 4.006 of total estimated construction cust of each project. The following compilation, which totals 2173 estimates, represents approximately 300°more than the number of approved estimates incorporated into the Contract. This over-all total was due principally to the fact that many estimates required complete processing through the preliminary and original estimate nhases prior to the preparation of approved current estimates. various Number of Estimates Gross Dollar Value Net _ Dollar Value 110 8 17,089,295 $ 17,089,295 2,173 3166.757,689 $155,623,183 82 99 741 1,141 An “Estimated Operations Scheduie,” reflecting the scheduling of engineering. procurement and construcion for each item of authorized construction, was issued and reviewed pe- riodically by the Manager, Construction-Oper- ations Division, his staff, and the Project Engineer. This provided the means for coordinating the work of the various Departments involved. 43,000,000 35.669,940 23,290,854 47,707.600 43,600,000 30,792,964 21,285,104 43,505,820 Immediately following the review and issuance of this schedule, a complete catalogue of Scientific Stations was issued which provided a brief description of the construction involved, site locations, and User requirements, and served to coordinate the User’s needs with Jobsite construction.