Caryn Johnson is in charge of relocating (“reconductoring”) 1,700 ft of 13.8-kilovolt overhead primary line as a result of the widening of the road section in which the line is presently installed. Table 14 summarizes the activities for the project. Draw the network model for her, and carry out the critical path computations. 

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TABLE 14 Activity ABC D E F G H I IKLMNOPORSTU J Description Job review Advise customers of temporary outage Requisition stores Scout job Secure poles and materials Distribute poles Pole location coordination Re-stake Dig holes Frame and set poles Cover old conductors Pull new conductors Install remaining material Sag conductor Trim trees De-energize and switch lines Energize and phase new line Clean up Remove old conductor Remove old poles Return material to stores Immediate predecessors A A A C, D E D G H F, I F, I J, K L L D B, M, N, O P Q Q S R, T Duration (days) 1 0.5 1 0.5 3 3.5 0.5 0.5 3 4 122NN 2 0.1 0.5 1 1 2 2