A market stabilizer
Some believe UPMC’s move into the building was a godsend not only for the tower itself but also for Downtown as a whole. “It’s fortunate that they came. That helped not only stabilize the tenancy in that building, [but also] it helped to stabilize the whole market Downtown,” Mr. McLaughlin said.
According to UPMC, it has 4,500 employees in the building. It occupies nearly 1.1 million square feet of space and 29 floors, including the 62nd — the former home of the Top of the Triangle.
“It has always been the crown jewel office building.”
Gregg Broujos, Colliers International real estate firm
The 28,000-square-foot restaurant, with panoramic views of Pittsburgh and its rivers, closed in 2001 after a 30-year run. It was a favorite spot for popping the question, the ensuing wedding, anniversary dinners, business lunches and after-work gatherings.
Mr. Harrington said the decision not to renew the restaurant’s lease proved to be an infamous moment in the building’s history.
“I still get grief over that,” he said.
But having the space available “was a big key for us in landing UPMC a few years later,” he pointed out.
“It was probably the most valuable real estate in Downtown Pittsburgh.”
Water and antifreeze
Despite the many changes, the tower still retains some of its unique characteristics — and not just its 2.3 million-square-foot footprint, nearly twice that of any other Downtown skyscraper.
Its Corten steel columns have outlived the Homestead mill that manufactured them. They age naturally, with each surface developing a protective rust coating that requires no maintenance.
The 18 columns are fireproofed by filling them with a solution of water and antifreeze that circulates without mechanical help. In all, they hold about 400,000 gallons of water and 625 tons of potassium carbonate antifreeze, according to a building fact sheet.
U.S. Steel built it that way, Mr. Harrington said, because it wanted to showcase the Corten steel.
“It has achieved what they were trying to do,” he said.
On the roof — about an acre in size just like the floor plans — the one-of-a-kind heliport was in use up until the early 1990s.
“Roderick used it a lot. It was one of the cooler things to be on the roof when the helicopter was coming in or taking off or being in the plaza when one was taking off,” Mr. Harrington said. “That’s kind of a unique, cool feeling I haven’t experienced anywhere else.”
The rooftop was a subject of some fascination for Pittsburghers, with at least one engagement (and probably more) taking place there. About a decade ago, a former Post-Gazette travel editor proposed turning it into a “Park in the Sky,” but that never gained traction.
In all, U.S Steel Tower has 11,000 windows, 56 elevators (up two since its opening) and nine escalators (down one).
At one time, the building had a dozen phone booths. They are all gone. But oddly enough, one of the more popular features these days are small phone rooms on the 35th floor where employees can have private conversations.
“It seems to be very popular with the next generation here,” Mr. Harrington said.

A schematic of the building. (Courtesy U.S. Steel)
Regaining its mojo
The building’s occupancy currently stands in the upper 80% range, he said, with about 40 tenants overall.
Despite the real estate downturn caused by COVID, leasing “is brisk right now. We’re seeing light at the end of the tunnel. It has picked up significantly.”
While much of the commercial activity has shifted more toward the center of Downtown over the past decade or so, Mr. Harrington believes Grant Street, a longtime corporate and government power corridor, will regain some of its mojo.
He sees the redevelopment of the nearby former Civic Arena site, where First National Bank is building a 26-story headquarters, playing a big role in that. That structure is slated to cost $240 million, nearly five times the $50 million that it took to build the U.S. Steel Tower five decades ago.
While Jeffrey Ackerman, CBRE managing director, doesn’t consider U.S. Steel Tower a “premium Class A building” anymore, he said it has held its own against the competition.
One thing it has had to overcome over the years was the prevailing corporate culture at the time it was built.
For example, he said, at one time on floors that housed engineers, there were two restrooms for men and only one for women because the majority of engineers were male.
“I think it’s aged well. It’s very well constructed, and the owner has kept up with making the capital improvements that were necessary,” he said, adding that the building still works well for big corporate users.
“One thing I do miss is the Top of the Triangle restaurant,” Mr. Ackerman added. “It was such a great amenity to be able to get on the elevator and go up to the top floor.”

Edwin H. Gott, second from left, then-chairman of the board of U.S. Steel, presses the button that activates a crane to lift the final beam to the top of the U.S. Steel Building on Oct. 24, 1969. From left: Robert Tyson, then-chairman of the company’s finance committee; F.B. Speer, then-president of the firm and John H. Long, then-president of the American Bridge Co., a fabricating division of U.S. Steel. (Kent Badger/Pittsburgh Press)
CBRE has been a tenant in the building since 1998. But that soon will be changing. It is planning to move out in August, likely for One Oxford Centre. The real estate firm is leaving after losing its longtime job leasing U.S. Steel Tower. Cushman & Wakefield/Grant Street Associates now is the leasing agent.
Despite the competition from other Downtown properties and those in the Strip and elsewhere, Mr. Broujos at Collier International believes the venerable skyscraper will continue to hold its own.
“The property management there is the best in class. If a corporation wanted a premier business address in a premier building, U.S. Steel Tower has always been at the top of the list,” he said.
Whatever the future holds, it’s unlikely that the strapping tower — built of and for steel — will ever lose its distinction as Pittsburgh’s tallest.
“There just isn’t the demand today for that large of a building in Pittsburgh,” Mr. McLaughlin said. “But you should never say never.”
Mark Belko: mbelko@post-gazette.com or 412-263-1262.
Web design: Tyler Pecyna (tpecyna@post-gazette.com)