The ability to precisely identify all necessary work activities for a given item of work is the clearest demonstration of true contract understanding. Within any defined scope, the accuracy of both the cost estimate and the project schedule depends fundamentally on correctly identifying every activity that influences cost and duration. This step must occur before determining the duration of each activity based on work quantities and the crew’s daily production rates.

While listing related activities may appear straightforward, it is far from trivial. Without a solid grasp of the construction materials, methods, and field processes involved, even experienced estimators and planners will struggle to develop a complete and accurate list of activities.

In essence, a deep working knowledge of construction materials and methods is what allows professionals to confidently identify, classify, and sequence activities—whether determining the type of retaining wall involved or organizing the specific construction steps outlined below.

Example: Reinforced Concrete Retaining Wall

Scenario

You are the project engineer for a highway improvement project. The project includes construction of a reinforced concrete retaining wall along the edge of a roadway.

The wall is approximately 120 ft long and 12 ft high on average. The work includes excavation for the wall foundation, preparation of the foundation, construction of the reinforced concrete wall, and backfilling behind the completed wall.

Your task

Before the work can be scheduled, you need to develop a preliminary list of the construction activities required to complete this scope of work.

Using the Project Schedule Data tool:

1. Identify the Unit of Work associated with the scope.
2. Identify the appropriate Item of Work within that unit.
3. Select the appropriate Work Task (Activity).
4. Add the activity to your project activity list.
5. Continue until you have identified the major work tasks required for the scope.

Do not create activities that are not supported by the scope and not available in the database of work tasks.

Can you identify the work required to build it?

A construction scope rarely tells you the activities directly. Your job is to break the scope into the work that must actually be performed.

In this challenge, you’ll work through a reinforced concrete retaining wall scenario and build a preliminary activity list.

Your challenge:

Scope → Unit of Work → Item of Work → Work Task → Activity List

Use the Project Schedule Data tool to identify the applicable work tasks. The goal is not to guess activities—it is to demonstrate that you understand the construction work required to complete the scope.

Can you build the complete list of activities for this work?