Home > Projects > Siskiyou County Jail Expansion Siskiyou County Jail Expansion The Siskiyou County Jail Expansion project consists of a new two-story, 24,000 square foot facility that includes a new housing tier and 4,000 square feet of exterior yard space. << Previous project See more photos Next project >> City Yreka State California Square Footage 24,000 Completion Date In-Progress Owner Siskyou County Architect Vanir Services provided Audio Visual Electrical Fire Alarm Security Telecommunications