Up to 250 firefighters and police officers will climb the equivalent of 110 stories at First Place Tower in downtown Tulsa on Sept. 11.

The annual Tulsa 9/11 Memorial Stair Climb begins at 7:30 a.m. at the 41-story tower at 15 East Fifth Street. Participants will strap on full gear and make multiple trips up the building's stairwells to reach the symbolic 110-floor total, matching the height of the World Trade Center towers destroyed in the Sept. 11, 2001, terrorist attacks that killed 343 New York City firefighters.

Registration costs $20 per climber. All proceeds go to Hydrants of Hope Charity, a Tulsa-based nonprofit that helps families of children battling cancer.

The charity carries a deep connection to the local fire service. Tulsa firefighter Mark Meyer founded Hydrants of Hope in 2012 while fighting his own cancer diagnosis, according to the National Fallen Firefighters Foundation. He chose a fire hydrant as the organization's symbol, calling it a lifeline for kids the way hydrants are a lifeline for firefighters. A News On 6 report noted the climb raised $12,000 for the charity in a prior year.

"I'm going to kick cancer's butt, but I want to do it while helping others," Meyer told Value News in a 2014 profile. Meyer died March 16, 2019, at age 53. The Tulsa Rotary Club had named him Firefighter of the Year in 2013, and the Tulsa Fire Department established the Mark Meyer Humanitarian Award in his honor in 2019.

According to the event announcement, spots are limited and registration is strictly enforced to manage the number of climbers inside the building. The event is open only to active firefighters and police officers. Interested first responders can register through the Tulsa Memorial Stair Climb Facebook page.

Nationally, the National Fallen Firefighters Foundation launched the #ForThe343 campaign in 2026, inviting Americans to honor the 343 FDNY firefighters who died on Sept. 11, 2001. KTUL covered the Tulsa climb in September 2024 as an annual tradition at First Place Tower.