ESP provided Special Inspections and construction materials testing for the Smoky Hollow 2 The Line residential apartment building and associated parking deck and 421 N. Harrington Street office building projects. ESP’s services consisted of subgrade evaluations, rock bearing evaluations, undercut monitoring, field density testing, foundation evaluations, reinforcing steel inspections, concrete testing, wood framing inspections, high strength bolting and welding inspections, and fireproofing and firestopping inspections and testing, in-place soil and aggregate density testing, bearing materials evaluations, retaining wall inspections, reinforcing concrete inspections and testing, steel placement, structural masonry inspections and testing, sprayed fire-resistant materials inspections and high-strength bolting, steel frame erection and structural welding inspections.
The 421 N. Harrington Street office building is a nine story, 248,000 square foot structure which consists of composite concrete slab on metal deck and structural steel framing with 2-hour fireproofing of the structural frame. The ground floor has retail and building services including a loading dock with various concrete slab-on-grade elevations. The structural steel columns are supported by deep foundation systems consisting of pile caps and auger cast piles.
The Line residential building is a six- and seven-story, 281-unit apartment building with an associated nine-story parking deck. One building is a seven-story mixed-use building consisting of five residential stories of conventional timber framing over two elevated post tensioned slabs. The other building is five stories of timber framing over one elevated concrete level. Foundations consist of rammed aggregate piers and bearing on competent rock.