BROADWAY TOWER ATRIUM, St. Louis
RETROFIT TEAM
ARCHITECT: Trivers
LIGHTING DESIGNER: Reed Burkett Lighting Design
CODE CONSULTANT: Code Consultants Inc.
STRUCTURAL ENGINEER: KPFF
LANDSCAPE ARCHITECT: Arbolope Studio
CIVIL ENGINEER: Civil Design Inc.
GENERAL CONTRACTOR: Paric
MATERIALS
Renovations to the 2-story atrium structure were transformative to the interior and exterior expression. Removal of heavy sloped-glazing “greenhouse-like” projections from the building was a necessary first step to bringing more light into the building.
Re-cladding the structure with a terra-cotta rainscreen and new storefront glazing updated the façade to make it more inviting and contemporary, as well much more compatible with the surrounding site and landmarks. New glass canopy structures at east and west entrances were incorporated with a frosted glass curtainwall adjacent to the entries, opening the existing egress stairs to the inside and outside. The canopies also provide a dynamic illumination opportunity with RGB grazed lighting within.
Inside, visitors are immediately welcomed by a bright and inviting new terrazzo-clad monumental staircase with a fun pop of orange below featuring one of many shared tenant conference rooms. The monumental stair connects to a continuous walking track around the main conference-room level, landing at a shared hospitality area with access to a new covered exterior patio. Bringing the outside in, biophilic elements, like live trees and other plantings, including the largest preserved moss wall in the region, were incorporated throughout. Interior column finishes reference St. Louis’ Old Courthouse, and natural materials, like wood and stone, complement the indoor/ outdoor feel with a nature-inspired color palette for the textiles. Lighting is used to feature the existing space-frame and make for a dynamic expression of the building’s energy from the inside out.
The following is a sampling of materials used in the project:
TERRA COTTA: NBK Terracotta
EXTERIOR WOOD CEILINGS/PANELS: Parklex Prodema
DECORATIVE METAL: Parasoliel
PAVERS: MBRICO
STOREFRONT AND CURTAINWALL SYSTEM: Tubelite
ENTRANCE CANOPIES: Kingspan Light + Air
MONUMENTAL STAIR: Wausau Tile and Missouri Terrazzo
PRESERVED MOSS WALL AND PLANTINGS: Ambius
WOOD FLOORING AT STAIR PLATFORM: Teka Hardwood Flooring
WINDOW SHADES: Mecho
INTERIOR COLUMN WRAPS: Interlam
ORANGE GLASS: McGrory Glass, mcgrory.com
DEMOUNTABLE PARTITION SYSTEM (Second-floor Conference Rooms): V.I.A.
from Steelcase
DIGITAL SCREEN GHOSTING FILM (Second-floor Conference Rooms): Casper Cloaking Technology from Steelcase
CARPET, INTERIOR WALKING TRACK: Shaw Floors
CARPET, CONFERENCE ROOMS: Milliken
WOOD FLOORS: Boardwalk Hardwood Floors
WOOD SLAT CEILING (Security Desk): CertainTeed
ACOUSTICAL CEILING TILES: USG
THE RETROFIT
What was once a dark bank lobby with waiting areas and a wall of teller windows is now a light-filled gathering space for the modern workforce.
“This project represents Trivers’ continuing commitment to creating architecture that makes a meaningful difference in downtown St. Louis,” says Trivers Principal Joe Brinkmann, AIA, LEED AP. “Located adjacent to two national treasures—the Old Courthouse and the Gateway Arch—the grand atrium now offers a stunning window to St. Louis’ past and a look to its exciting future.”
Larson Capital Management engaged Trivers to make interior and exterior improvements to the atrium and surrounding plaza with the goal of repositioning it as a premier office building destination.
“This space was underutilized for nearly a decade,” Brinkmann adds. “With an atrium designed to support the modern workforce, Broadway Tower already is beginning to attract new tenants looking for quality space for their team members.”
The Trivers office has been located in the Broadway Tower for almost 40 years. To commemo- rate the much-anticipated reopening of the atrium, Trivers hosted a celebration where attendees could tour the space and enjoy food and refreshments.