Seattle Planning and Scheduling Professional (PSP) Practice Exam

The least depth of water at the Lafarge Cement Dock, North Berth is accurately 22 feet. This measurement is crucial for ensuring that vessels can safely navigate to and from the dock without risk of running aground, which is particularly important for commercial operations that rely on the timely delivery of materials.

Knowledge of the harbor's depth helps in planning ship arrivals, scheduling docking times, and managing loading and unloading operations. The depth must accommodate the largest vessels that use the dock, alongside considerations for tides and potential sediment buildup that may affect available depth.

Alternative depths provided in the options, such as 26 feet, 30.4 feet, and 35.6 feet, suggest higher water levels than what is currently established at the North Berth, which may lead to miscalculations in loading strategy or scheduling if assumed correct. Understanding the accurate depth helps in the successful management of harbor activities and maintaining operational safety at the Lafarge Cement Dock.