Georgia-Pacific is investing $70 million in upgrades at its lumber and plywood operations in Gurdon, Ark. Some of the improvements include an advanced merchandiser, new panel assembly stations with state-of-the-art scanning systems, an upgraded power plant and software and security enhancements. Work on the projects will be completed by 2020. The investments will sustain the more than 700 jobs at the two facilities. The company is also contributing $100,000 over five years to Gurdon and Clark County schools to help install a multi-use playing field that will be used by the three schools and the city for community events.