Utah Engineers Journal 2021 Issue

51 Photograph 4. Damage to a Mobile Home at Western Estates. Photo: Jef ferey D. Allred, KSL Photograph 5. Wall Damage, Colosimo’s Store, Magna. Photo: Steve Cornell, SHPO Photograph 6. Ceiling and Light Failure in a Salt Lake Business. Photo: Jessica Chappell, Reaveley Photograph 7. Water Leak in the Salt Lake International Airport. Photo: KSL News Photograph 8. West Lake Junior High URM Wall Collapse and Ceiling Damage, Photo: Reaveley The nonstructural damage was extensive in buildings of all types in the areas where the shaking intensity was highest. Many buildings had damage to cladding systems. Separations at window frames, broken glass, and fallen unreinforced masonry were common at Main Street businesses in Magna (Photograph 6). Interior glass partitions shattered in some Salt Lake City businesses, and ceilings and lights swung from compromised supports (Photograph 7). Water leaks rained down from ceilings in building systems that have not been detailed for building movement. One such water leak shut down the Salt Lake International Airport (Photograph 8). Entire sections of mechanical ducts or diffusers fell in some buildings. New buildings experienced extensive partition wall damage, even if other systems were uncompromised. Damage to building contents included collapsed storage shelves, toppled monitors, and fallen wall clocks. As of March 26, 2020, the Utah State Historic Preservation Office (SHPO) had identified 145 damaged historic buildings with a preliminary windshield survey. While three were determined to be unsafe to occupy for observed residual instability, none required demolition. Continued on the following page