SPOKANE, Wash. (AP) — Work to expand Mt. Spokane Ski and Snowboard Park is set to begin after Spokane County officials issued a grading permit for the project.

The Spokesman-Review reports that the ski area said in a release that the work to add 80 acres of groomed trails and another chairlift will get started immediately. The facility is looking to have construction complete in time for next season.

The county's decision Friday comes after the Spokane Tribe and several environmental groups called on Gov. Jay Inslee to halt the project, which was approved in 2014 by the Washington Parks and Recreation Commission.