LAS VEGAS — CORE Construction—Nevada, serving as general contractor, has broken ground on the Ralph and Betty Engelstad School of Health Sciences, which is located at 6375 W. Charleston Blvd. on the campus of the College of Southern Nevada. The 10,000-square-foot facility will house the college’s Cardiorespiratory Sciences Program. The $3.99 million project is slated for completion in June 2010. SH Architecture is providing architectural services for the project.