What is the least depth at Pier 86, Seattle?

The least depth at Pier 86 in Seattle is indeed correctly identified as 69 feet. This figure is important for understanding potential navigational and operational considerations for vessels using the pier. Depth measurements are critical in marine contexts as they affect the types of ships that can safely dock and maneuver without running aground. A depth of 69 feet typically accommodates larger vessels, enabling a diverse range of maritime activities and facilitating significant shipping operations. Understanding such specific measurements allows professionals in planning and scheduling to make informed decisions regarding port usage, vessel schedules, and logistics.

The other options, while close, do not accurately reflect the established least depth for Pier 86 and could lead to misinformation regarding the capabilities and constraints of the facility. It's essential for stakeholders involved in port operations to have precise data to enhance safety and efficiency in shipping logistics.