The project, started in December 2009, added 600 ft to the terminal's existing 2,000-ft berth to support two super post-panamax container cranes the facility added last January.
Via the expansion, the Blair Waterway is now able to handle two container ships simultaneously and to accommodate the industry's largest container vessels, the terminal's operator Hyundai Merchant Marine said.
The Tacoma container port handles various types of cargo including bulk, break-bulk and project/heavy-lift, automobiles and trucks.