Assumptions Assume that the project will be lunched date is on 26/4/2020 There is one 8-hour shift per day, 8:00-16:00, Sunday to Thursday.

Question:

What would be the estimated project completion date at a normal rate?

in Table I would be necessary to complete the job. It was agreed that the estimator would prepare time and cost estimates for these activities. In addition to determining the list of activities, the estimator and supervisor discussed in some details how these activities could be sequenced as the list of activities in Table I did not necessarily indicate the order in which the work could be performed. In the course of the discussion, the estimator made the following notes. Survey work and procurement of the structural steel and electrical equipment for the tower can start as soon as contract is signed. Grading the tower and building sites can begin when survey is completed. After tower site is graded, footings and an-chors can be poured. After building site is graded and basement ex-cavated, building footings can be poured. Septic tank can be installed when grading and excavating of building site is done. Construction of connecting road can start as soon as survey is completed. Exterior and interior basement walls can be poured as soon as footings are in. Basement floor and fuel tank slab should go in after basement walls. Floor beams can go in after the basement walls and basement floor. Main floor slab and concrete block walls go in after floor beams. Roof slab can go on after block walls are up. Interior can be completed as soon as roof slab is on Put in fuel tank any time after slab is in. Drain tile and storm drain for building go in after septic tank As soon as tower footings and anchors are in and tower steel and equipment are available, tower can be erected Connecting cable in tower site, drain tile, and storm drain can be put in as soon as tower is up. Main cable between building and tower goes in after connecting cable at tower site is in and basement walls are up- Tower site can be backfilled and graded as soon as storm drain, connecting cable, and main cable are in Clean up tower site after backfilling and grading is done. Backfill around building and grade after main cable is in and after storm drain is in. Clean up building site after backfilling and grading is done. Backfill around building and grade after main cable is in and after storm drain is in. Clean up building site after backfilling and grading is done. Following his meeting with the general supervisor, the estimator prepared cost estimates and time estimates for completing the various portions of the job. Estimates for both the normal time in which the work could be completed and the fastest possible time along with the corresponding costs were made as shown in Table I The cost figures in Table I are for the direct labor and equipment use costs only. Estimated costs of materials used in construction and purchased equipment to be installed in the tower are shown in Table II. Company experience had shown that for this kind of job indirect labor and ot0er overhead costs could be expected to amount to 65 percent of the direct labor and equipment use cost. The company also customarily added 15 percent to the total estimated cost for contingencies. Using this information, the estimator prepared Analyses for the job: One for the cost of doing the work at the normal rate and one for the cost of doing the job in the shortest pos-sible period of time. Table I Television Tower and Building Construction Time and Cost Estimate. NORMAL TIME FASTEST TEME ACTIVITY CODE COST DA COST DAYS' 5 $ 4 6 8 $3,270 .900 19,050 3 4,680 5.490 26,970 85 120 120 18 ACTIVITY Sign contract and complete subcontractor negotiations Survey site Grade building site and excavate for basement Grade tower site Procure structural steel and guys for tower Procure electrical equipment for tower and connecting underground cable Pour concrete for tower footings and anchors Erect tower and install electrical equipment Install connecting cable in tower site Install drain tile and storm drain in tower site Backfill and grade tower site Pour building footings Pour basement slab and fuel tank slab Pour outside basement walls Pour walls for basement rooms Pour concrete floor beams Pour main floor slab and lay concrete block walls Pour roof slab Complete interior framing and utilities Lay roofing Paint building interior install fixtures, and clean up Install main cable between tower site and building Install fuel tank Install building septic tank Install drain tile and storm drain in building site Backfill around building, grade, and surface with crushed rock Lay base for connecting road between tower and building Complete grading and surface connecting road Clean up tower site Clean up building site Obtain job acceptance 24.930 34,050 5.220 10.500 2.790 9,090 3.150 7,650 2.400 2,940 5,580 5,220 29,250 310 2.760 13.090 540 1,890 1,590 7 10 10 13 30 35,010 46,860 5.850 15,300 4.350 12.300 4,620 8.430 2980 3,330 6.720 5,880 35,400 1,020 4,050 13.620 660 2.250 2490 19 13 25 2,0407 2,550 5 7,680 4,800 7203 6302 8,910 7020 1,500 1,200 Total 26.290 $269,340 'Working days only For direct labor and rental of equipment only Costs are included in Table IT Table II Estimated Cost of Materials and Equipment. ITEM COST Structural steel and guys for tower Tower electrical equipment and connecting cable Sand, gravel, crushed rock, and cement Luunber and millwork Drain tile and dewer pipe Septic tank, plumbing fixtures, fuel tank, and other hardware Other miscellaneous materials Total $ 70,800 21,780 15,330 19,200 10,800 9,900 9,960 $157,770 in Table I would be necessary to complete the job. It was agreed that the estimator would prepare time and cost estimates for these activities. In addition to determining the list of activities, the estimator and supervisor discussed in some details how these activities could be sequenced as the list of activities in Table I did not necessarily indicate the order in which the work could be performed. In the course of the discussion, the estimator made the following notes. Survey work and procurement of the structural steel and electrical equipment for the tower can start as soon as contract is signed. Grading the tower and building sites can begin when survey is completed. After tower site is graded, footings and an-chors can be poured. After building site is graded and basement ex-cavated, building footings can be poured. Septic tank can be installed when grading and excavating of building site is done. Construction of connecting road can start as soon as survey is completed. Exterior and interior basement walls can be poured as soon as footings are in. Basement floor and fuel tank slab should go in after basement walls. Floor beams can go in after the basement walls and basement floor. Main floor slab and concrete block walls go in after floor beams. Roof slab can go on after block walls are up. Interior can be completed as soon as roof slab is on Put in fuel tank any time after slab is in. Drain tile and storm drain for building go in after septic tank As soon as tower footings and anchors are in and tower steel and equipment are available, tower can be erected Connecting cable in tower site, drain tile, and storm drain can be put in as soon as tower is up. Main cable between building and tower goes in after connecting cable at tower site is in and basement walls are up- Tower site can be backfilled and graded as soon as storm drain, connecting cable, and main cable are in Clean up tower site after backfilling and grading is done. Backfill around building and grade after main cable is in and after storm drain is in. Clean up building site after backfilling and grading is done. Backfill around building and grade after main cable is in and after storm drain is in. Clean up building site after backfilling and grading is done. Following his meeting with the general supervisor, the estimator prepared cost estimates and time estimates for completing the various portions of the job. Estimates for both the normal time in which the work could be completed and the fastest possible time along with the corresponding costs were made as shown in Table I The cost figures in Table I are for the direct labor and equipment use costs only. Estimated costs of materials used in construction and purchased equipment to be installed in the tower are shown in Table II. Company experience had shown that for this kind of job indirect labor and ot0er overhead costs could be expected to amount to 65 percent of the direct labor and equipment use cost. The company also customarily added 15 percent to the total estimated cost for contingencies. Using this information, the estimator prepared Analyses for the job: One for the cost of doing the work at the normal rate and one for the cost of doing the job in the shortest pos-sible period of time. Table I Television Tower and Building Construction Time and Cost Estimate. NORMAL TIME FASTEST TEME ACTIVITY CODE COST DA COST DAYS' 5 $ 4 6 8 $3,270 .900 19,050 3 4,680 5.490 26,970 85 120 120 18 ACTIVITY Sign contract and complete subcontractor negotiations Survey site Grade building site and excavate for basement Grade tower site Procure structural steel and guys for tower Procure electrical equipment for tower and connecting underground cable Pour concrete for tower footings and anchors Erect tower and install electrical equipment Install connecting cable in tower site Install drain tile and storm drain in tower site Backfill and grade tower site Pour building footings Pour basement slab and fuel tank slab Pour outside basement walls Pour walls for basement rooms Pour concrete floor beams Pour main floor slab and lay concrete block walls Pour roof slab Complete interior framing and utilities Lay roofing Paint building interior install fixtures, and clean up Install main cable between tower site and building Install fuel tank Install building septic tank Install drain tile and storm drain in building site Backfill around building, grade, and surface with crushed rock Lay base for connecting road between tower and building Complete grading and surface connecting road Clean up tower site Clean up building site Obtain job acceptance 24.930 34,050 5.220 10.500 2.790 9,090 3.150 7,650 2.400 2,940 5,580 5,220 29,250 310 2.760 13.090 540 1,890 1,590 7 10 10 13 30 35,010 46,860 5.850 15,300 4.350 12.300 4,620 8.430 2980 3,330 6.720 5,880 35,400 1,020 4,050 13.620 660 2.250 2490 19 13 25 2,0407 2,550 5 7,680 4,800 7203 6302 8,910 7020 1,500 1,200 Total 26.290 $269,340 'Working days only For direct labor and rental of equipment only Costs are included in Table IT Table II Estimated Cost of Materials and Equipment. ITEM COST Structural steel and guys for tower Tower electrical equipment and connecting cable Sand, gravel, crushed rock, and cement Luunber and millwork Drain tile and dewer pipe Septic tank, plumbing fixtures, fuel tank, and other hardware Other miscellaneous materials Total $ 70,800 21,780 15,330 19,200 10,800 9,900 9,960 $157,770