(Vancouver, WA) -- The Washington Department of Corrections is closing the Larch Corrections Center in Clark County. It's the first prison to close in Washington in more than a decade. The Larch Corrections Center is a 240-bed minimum security facility. It's being closed because of a declining number of inmates following the Washington Supreme Court's Blake decision. It removed simple drug possession as a felony. Prison capacity in the state is at 70-percent. The Washington Legislature recently passed a law, because of the Blake decision, making drug possession a gross misdemeanor.