The dancers of Heidi Duckler Dance Theatre are used to getting dirty. Over the years, the city's preeminent site-specific dance company has explored the concrete banks of the Los Angeles River, historic jails, underground streetcar garages and, most recently, scaffoldlike constructs in vacant lots. Audiences revel in this troupe's inventive and informative explorations of L.A.'s often forgotten cultural treats. For the company's newest excursion, The Groundskeepers, the dancers enter the once-pristine environs of a Mission Revival-style hospital as media artists join the usual assemblage of dancers, writers, singers and musicians to provide a last hurrah for the historic structure, which is scheduled to be rebuilt as affordable housing. Audience members are encouraged to wear comfortable shoes, be prepared to walk, and bring a jacket as the performance travels from the entry way to the chapel, the boiler room, the rooftop and outdoors, where media artist Refik Anadol and lighting designer Grant Dunn promise projections to illuminate the hospital's finale. The Nov. 2 show includes a groundbreaking ceremony at 5:30 p.m. and a preperformance party on the roof. Linda Vista Hospital, 610 St. Louis St., Boyle Heights; Fri., Nov. 1, 8 p.m.; Sat., Nov. 2, 5:30 p.m.; Thurs.-Sat., Nov. 7-9, 8 p.m.; $50 (Nov. 2 only, includes preshow party), $25, $20 students & seniors.

Fri., Nov. 1, 8 p.m.; Sat., Nov. 2, 5:30 p.m.; Nov. 7-9, 8 p.m., 2013

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