New Addition Will Be Center of West
Located at the center of a strand of new towers built at
the Riverside South development, the 18-story, 380,552-sq.-ft.
tower designated as Building G is on track for completion
by late fall.
The $91.2 million structure at 120 Riverside Blvd. between
65th and 66th streets is the fifth tower that New York-based
Bovis Lend Lease has erected at Riverside South near the Hudson
River. It previously built towers ranging from 26 to 49 stories
with addresses at 140, 160, 180, and 220 Riverside Blvd.
The construction manager finished the building's superstructure
last summer and its façade in January. The current
work involves fitting out the interiors, including the condominium
units, health club, and lobby, said Bovis project executive
Ray Totillo. The building offered a twist on the recipe that
Bovis had used to construct the other towers on the site,
in part because Freedom Place, one of two roadways in the
development, currently ends short of 66th Street, on Building
G's northern side.
"We didn't have Freedom Place as a staging area like
we did on the other buildings, so we had to position our hoist
on the south side of the building," Totillo said.
Like the other buildings at Riverside South that Bovis has
built since 1997, the structure straddles Amtrak railroad
tracks that run north and south through the development. As
a result, the building's foundation includes a tunnel that
spans 32 ft. over the tracks.
Totillo said the project team spanned the tracks with 21-in.-thick,
prestressed, precast concrete planks supported by 24-in.-thick
reinforced concrete crash walls on either side. The planks
served as a construction table for the structure above, but
because they do not have the capacity to support the building's
columns, the team also installed reinforced concrete pickup
girders between the first and second floors.
The columns outside of the Amtrak easement rest on pile foundations,
according to a spokesman for New York-based WPS Cantor Seinuk,
which served as structural engineer for the building's developer,
Hudson Waterfront Associates.
About 40 of the 100 columns, meanwhile, were relocated by
using "walking columns" to accommodate varying apartment
layouts. Using one- and two-story walls to transfer the load
from columns above to a different column location below, the
setup shifts additional lateral force to the shear walls through
the floor slabs.
Although Building G is the shortest structure along Riverside
Boulevard in the development, its position at the center of
the row of towers envisioned in the full build-out gives it
special status, said James Davidson, design partner at New
York-based Schuman Lichtenstein Claman & Efron, which
designed the building.
"It's the center of the entire development," Davidson
said. "It's flanked by progressively taller structures,
and it's very apparent when looking at the master plan that
this building is the fulcrum of the development."
The building's exterior is clad in aluminum, glass, and precast
concrete, which simulates the look of limestone.
"The central portion of the façade is bowed to
the express the curve Riverside Boulevard takes," Davidson
With the Amtrak rails going beneath the building, the nearly
2-ft.-thick concrete planks enclosing the railroad tracks
will provide noise mitigation from trains. The health club
and lobby on the first floor will also provide acoustical
insulation for the units above.
Another highlight of the design is an outdoor landscaped
roof that has a deck and trellises that focus on the Hudson
River, Davidson said.
Alan Dzbanek, who was senior director for Hudson Waterfront
until he left the company in late June, said Building G contains
272 condominium units ranging in size from 850 sq. ft. to
1,250 sq. ft. The one- to three-bedroom units are selling
at prices ranging from $500,000 to $2 million.
"They are luxury units, but they tend to be a little
more economical than what you find at the highest-end units
in the development," Dzbanek said. "The building
has been well received by the market, and all of the units
are already sold out."
Owner: Hudson Waterfront Associates, New York
Construction Manager: Bovis Lend Lease, New York
Architect: Schuman Lichtenstein Claman & Efron,
Structural Engineer: WPS Cantor Seinuk, New York
Civil Engineer: Philip Habib & Associates, New