2.8. Question 8 A new road section with concrete payment, shown in the longitudinal section below, is 11,600 m long. It is to be constructed in accordance with the following conditions: 1) The balanced earthworks from station 00 to 58(00) may be done at the same as the balanced earthworks from station 58(00) to 116(00) using two separate independent crews. 2) The double-box culvert will be built by one crew, and another crew will build the two small culverts. Concrete may be supplied either from the paving batch plant or from small independent mixers at the culvert sites, whichever is expedient. 3) One small slip-form paver will do all the concrete paving work, and all the shouldering will then follow with one crew after the concrete pavement is cured. Seeding the embankments with grass must be left as late as possible. Earthworks balance point Existing ground Culvert Culvert Double culvert Road Profile Cut Fill Cut Fill Cut Start Finish 00 28 38 50 58 73 85 96 108 116Prepare a precedence network diagram and determine the minimum possible project duration based on the activity list provided below. Assume that the project is to start on Monday, 13 November 2023, and workdays are Monday through Friday. Do not consider any public holidays. For each activity, calculate the Early/Late Start and Finish dates, including the Free/Total Floats, using an Activity Node Notation (an example notation is provided below as a suggestion). Mark the critical path. Indicate all calculations on the network itself. It is not required to fit everything within a page. Task names are not required to be shown in the network diagram. Activity Node Notation Early Start Duration Early Finish (ES) (Dur) (EF) Late Start Free Float Total Float Late Finish (LS) Activity (Task) Activity (Task) Description Duration 1 Deliver rebars-double-box culvert 10 Move in equipment 3 AWN Deliver rebars-small culverts 10 Set up paving batch plant 8 Order and deliver paving mesh 10 Build and cure double-box culvert, station 38 40 Clear and grub, station 00-58 10 8 Clear and grab, station 58-116 8 9 Build small culvert, station 85 14 10 Move dirt, station 00-58 27 11 Move part dirt, station 58-116 16 12 Build small culvert, station 96 14 13 Cure small culvert, station 85 10 14 Cure small culvert, station 96 10 15 Move balance dirt, station 58-116 5 16 Place subbase, station 00-58 4 17 Place subbase, station 58-116 4 18 Order and stockpile paving materials 7 19 Pave, station 58-116 5 20 Cure pavement, station 58-116 10 21 Pave, station 00-58 22 Cure pavement, station 00-58 10 23 Shoulders, station 00-58 24 Shoulders, station 58-116 25 Guardrail on curves W A W N N 26 Seeding embankments with grass 27 Move out and open road