Ridership on Sounder South is increasing steadily, and this is expected to continue as the region grows. To help meet growing demand, in 2016 voters approved the Sounder South Capacity Expansion program and an extension to DuPont. The goal of the program is to expand Sounder capacity and improve rider experience.

Improvements could include:

  • Additional daily trips.
  • Station updates to accommodate longer trains and more riders.

Any additional service would require negotiation with BNSF, the railroad that owns most of the tracks used by Sounder.

The first step of the capacity expansion program is creation of a strategic plan to identify projects, service and completion dates. Planning for the first round of projects could begin as early as 2020, and all expansion program improvements will be complete by 2036.