You are the Owner’s project manager on an electrical upgrade project. Existing overhead power lines are being buried in a duct bank to hide them from view in an area of the town that is being revitalized. There are a total of 8.6 miles of power lines being buried. All the power lines being buried are on one street and run in a straight line. Due to the size of the wires, a pull box needs to be installed every 500 feet.

There are three primary activities in burying the power lines:

1. Dig and install pull box/conduit
2. Pull wires
3. Terminate/connect wires

Labor:

• A four-man crew can install one pull box and 500 ft of conduit in 2 days.
• A seven-man wire crew can test and install 1000 ft of wire per day.
• A three-man electrician crew can terminate 7 connections per day.

Task

1. Draw an LOB diagram to illustrate how it works. Submission can be handwritten and uploaded or created on the computer.
2. Submit a written explanation of what the LOB is going to tell/show the contractor and why it would be useful in this application.