East Valley Construction Inc., of Spokane Valley, has started site work on the West Plains for a $1.4 million, 18,000-square-foot warehouse for Spokane-based records management company Northwest Vital Records Center Inc.

Northwest Vital Records Center, which has its headquarters at 441 W. Sharp in Spokane, owns a 30-acre storage campus in the Deep Creek area west of the city of Airway Heights on a decommissioned U.S. Army Nike missile site.

Ed Stevens, president of East Valley Construction, says construction of the warehouse is expected to be completed in 60 days.

Spokane architect James McArthur designed the structure.

Northwest Vital Records Center's remote storage campus currently has three underground vaults and 12 above-ground steel buildings to hold nearly 2 million boxes of records, its website says. The company, which previously did business as Northwest Microfilm Inc., offers off-site business records storage and data backup, destruction and shredding services, and document imaging.

East Valley Construction built three other storage buildings within the past decade for Northwest Vital Records Center, and this structure is the same size and design, Stevens says.