Using the information given in figures shown, develop a precedence notation CPM network for the bridge project described. Certain logical relationships are implied by the bar chart that has been supplied to you by the field superintendent who has been chosen to run the job. According to contract specifications your company must submit a network scheduling (CPM) to the owner. Knowing that you area CPM expert, your boss has given you the job of setting up the network. He also has asked you to calculate the project duration in working days. The duration of each activity can be developed from the dates given on the bar chart.