Washington state is closing its first prison in 10 years. Are other facilities next? For the first time in more than a decade, Washington state is closing a prison. The Larch Corrections Center in Yacolt, Clark County will shut its gates for the last time next week. The state’s Department of Corrections says the population of the 240-bed minimum security prison is now down to about 60 people, all of whom will be relocated by Monday, Oct. 2.