Allegheny Health Network McCandless

Project Details:

Owner: Allegheny Health Network
General Contractor: Rycon Construction
Duration of Work: 20 weeks
Subsurface Conditions: Soft to stiff clay with some sand and silt. Underlying the clay was shale bedrock.
Approximate Key Quantities: 177 Controlled Modulus Column (CMC)® Rigid Inclusions

Project Overview:

To emphasize its “patient-centered” care philosophy, Allegheny Health Network (AHN) embarked on the construction of several neighborhood hospitals in the suburban Pittsburgh area. McCandless, located north of downtown, was selected as one of the sites. Unlike standalone emergency departments or urgent care centers, AHN McCandless would be a fully licensed small-format hospital open around the clock.

In addition to an emergency department and 10-bed inpatient unit, the hospital would provide diagnostic imaging, as well as laboratory and other complementary services. Staffed by board-certified physicians, nurses and other experienced health care professionals, AHN McCandless would be home to AHN’s women’s health services. Due to the compressible nature of the soils at the site, Menard USA was contracted to provide support for a newly constructed 49-ft high retaining wall that was necessary to increase the surface parking area for the proposed hospital.

Ground Conditions:

The soils consisted of soft to stiff clay with some sand and silt. Underlying the clay was shale bedrock, which was the tipping strata for Menard’s method of ground improvement, Controlled Modulus Column (CMC)® rigid inclusions.

Solution:

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