The Mid-Continent Tower, a 36-story office building in downtown Tulsa, Oklahoma, has been recognized with the prestigious 25 Year Award from the Eastern Oklahoma Chapter of the American Institute of Architects (AIA). The award was presented to the Tulsa office of Dewberry (then known as HTB), which designed the distinctive tower for then-owner Reading & Bates in the early 1980s.
Among the most challenging design and construction projects in the nation at the time, the Mid-Continent Tower was built adjacent to and above the historic 16-story Mid-Continent Building, also known as the Cosden Building, which is listed on the National Register of Historic Places. Reading & Bates, an energy resources company, owned the circa-1918 building and sought to expand the property to serve as its headquarters.
Because the existing building’s structural system would not support additional weight, Dewberry’s design concept called for constructing the tower’s base adjacent to the building to its full height, and then cantilevering over the building for an additional 20 stories. In all, 330,000 square feet were added to the original 90,000-square-foot building, aided by a series of five massive steel trusses, each weighing 230 tons.
In order to replicate the original building’s terra cotta façade, the Dewberry team researched available manufacturers to create the 85,000 tiles, spires, cornices, and moldings required for construction. With the peak of Tudor Gothic-revival architecture long past, only one American firm still manufactured terra cotta tiles at the time, a company called Gladding, McBean & Co. in Lincoln, California. The company, which had never manufactured such a large order, expanded its operations to meet the requirements, which included more than 7,000 different shapes and 13,000 hand-made tiles.
The building won numerous awards upon its completion in 1984, including a National Trust Preservation Honor Award. BD+C
Related Stories
Sustainability | Sep 18, 2024
3 living buildings made by a living practice
Prompting humans to reexamine our relationship to the environment, architecture creates the opportunity for us to physically experience ideas of beauty, performance, and structure through the distinct lens of place.
3D Printing | Sep 17, 2024
Alquist 3D and Walmart complete one of the nation’s largest free-standing, 3D-printed commercial structures
Walmart has completed one of the largest free-standing, 3D-printed commercial structures in the US. Alquist 3D printed the almost 8,000-sf, 20-foot-high addition to a Walmart store in Athens, Tenn. The expansion, which will be used for online pickup and delivery, is the first time Walmart has applied 3D printing technology at this scale.
Retail Centers | Sep 17, 2024
Thinking outside the big box (store)
For over a decade now, the talk of the mall industry has been largely focused on what developers can do to fill the voids left by a steady number of big box store closures. But what do you do when big box tenants stay put?
Government Buildings | Sep 17, 2024
OSHA’s proposed heat standard published in Federal Register
The Occupational Safety and Health Administration (OSHA) has published a proposed standard addressing heat illness in outdoor and indoor settings in the Federal Register. The proposed rule would require employers to evaluate workplaces and implement controls to mitigate exposure to heat through engineering and administrative controls, training, effective communication, and other measures.
Codes and Standards | Sep 17, 2024
New California building code encourages, but does not mandate heat pumps
New California homes are more likely to have all-electric appliances starting in 2026 after the state’s energy regulators approved new state building standards. The new building code will encourage installation of heat pumps without actually banning gas heating.
Mass Timber | Sep 17, 2024
Marina del Rey mixed-use development is L.A.’s largest mass timber project
An office-retail project in Marina del Rey is Los Angeles’ largest mass timber project to date. Encompassing about 3 acres, the 42XX campus consists of three low-rise buildings that seamlessly connect with exterior walkways and stairways. The development provides 151,000 sf of office space and 1,500 sf of retail space.
Education Facilities | Sep 16, 2024
Hot classrooms, playgrounds spur K-12 school districts to go beyond AC for cooling
With hotter weather occurring during the school year, school districts are turning to cooling strategies to complement air conditioning. Reflective playgrounds and roads, cool roofs and window films, shade structures and conversion of asphalt surfaces to a natural state are all being tried in various regions of the country.
Office Buildings | Sep 16, 2024
Maximizing office square footage through ‘agile planning’
Lauren Elliott, RID, NCIDQ, Director of Interior Design, Design Collaborative, shares tips for a designing with a popular and flexible workspace model: Agile planning.
3D Printing | Sep 13, 2024
Swiss researchers develop robotic additive manufacturing method that uses earth-based materials—and not cement
Researchers at ETH Zurich, a university in Switzerland, have developed a new robotic additive manufacturing method to help make the construction industry more sustainable. Unlike concrete 3D printing, the process does not require cement.
Libraries | Sep 12, 2024
How space supports programming changes at university libraries
GBBN Associate Sarah Kusuma Rubritz, AIA, uses the University of Pittsburgh's Hillman Library to showcase how libraries are transforming to support students’ needs.
