In general, “working drawings” can be defined as the sheets, plans, diagrams, drawings, or similar data that the Contractor is required to submit to the owner’s engineer. Once drafted and approved, the working drawings will play a role in keeping all of the parties informed on how work on a given project will proceed, from a logistical and technical standpoint. A public road construction project contract typically requires Contractors to put together their working drawings for a project and submit them to the Owner’s engineer for approval. Usually, once approved by the engineer, it will become part of the actual contract. Generally speaking, working drawings may include supplemental design sheets like drawings, diagrams, illustrations, sample schedules, or calculations. More specifically, these sheets might include stress sheets, shop drawings, erection plans, false work plans, framework plans, cofferdam plans, or bending diagrams for reinforcing steel.