Vision on Fifteenth Street

Project Details:

Owner: Burns Scalo Development, LLC
General Contractor: Burns Scalo Development, LLC
Duration of Work: 4 weeks
Subsurface Conditions: Below the fill is a soft silty clay layer followed by a dense sand and gravel layer.
Approximate Key Quantities: 759 Controlled Modulus Column (CMC)® rigid inclusions

Project Overview:

An eight-story, $75 million building with office, retail and restaurant space was proposed for the historic Strip District in Pittsburgh, PA. Known as The Vision on Fifteenth, the future 275,000 sq-ft structure would offer tenants oversized floorplans, terrace views of Downtown Pittsburgh and the Strip District, an interactive lobby video wall and state-of-the-art fitness amenities including direct access to outdoor recreational activities and an indoor rock-climbing wall.

The development also would feature a multi-modal transportation component featuring 390 parking spaces, 90 bike storage spaces, 20 electronic vehicle charging stations, and a bike/electric scooter sharing program.

Due to the compressible nature of the soils at the site, Menard USA was contracted to provide ground improvement – the selected technique was Controlled Modulus Column (CMC)® rigid inclusions.

Ground Conditions:

The soil consisted of 10-17 ft of silty clay fill with a number of large obstructions. The fill was removed and replaced by the general contractor before Menard mobilized. Below the fill is a soft silty clay layer reaching depths of approximately 30 ft, followed by a dense sand and gravel layer (which served as the bearing layer for the CMCs).

Solution:

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