Charts
Services calling the Northwest Seaport Alliance
By Bessie Howard on 27 August 2018
Northwest Seaport Alliance ports of Tacoma and Seattle saw significant increases in container volumes in July 2018. 
  The Northwest Seaport Alliance (NWSA), comprised of Washington ports of Seattle and Tacoma, recently reported a 10.6 percent growth in containerized cargo from this time last year heading into peak season. After experiencing a drop in total cargo volumes for March, April and May, the NWSA has witnessed a boost in volume for June and July. 
  Port officials suggested another possible reason for the surge is the escalating trade war, stating “shippers may also be shipping ahead of planned tariffs.” 
  Utilizing BlueWater Reporting's Port Dashboard, the chart above provides a year-over-year overview of the total number of services calling the ports of Tacoma and Seattle, along with the combined average vessel capacity of those services. 
  According to the data, one service has dropped a call to Tacoma each year since July 2016. As of July 2018, there are seven fully cellular services that call the port with an average vessel size of 5,887 TEUs. One service had dropped its call to Tacoma within the past year, THE Alliance-operated AL5.
  On the other hand, the port of Seattle has seen incremental gains in the number of services calling the port for a total of 11 by July 2018. Within the last year, Seattle has added three additional services, the 2M-operated TP9/Maple, SM Line's PNS and THE Alliance's AL5 service.  One service calling Seattle was terminated during this time, the 2M Alliance-operated TP1/New Eagle, which ended in June 2018.
  Average vessel size for services calling Seattle  has remained consistent within the last two years, averaging approximately 6,700 TEUs for both years.
  Overall, the NWSA is currently called by 18 fully cellular services, with none of which call both Tacoma and Seattle on the same service. Eight of those services are alliance-operated, while the remaining 10 range from top 10 carriers like MSC and Hamburg Süd, to more specialized niche carriers such as Matson.