Set to reopen May 3, the Old Courthouse—part of Gateway Arch National Park—has completed its second major renovation since originally opening in 1862. Trivers led design of the $27.5 million transformation, preserving the landmark’s historic character while improving accessibility, infrastructure, and the overall visitor experience.
In partnership with the National Park Service and Gateway Arch Park Foundation, the design team renovated over 6,700 square feet of exhibit space, upgraded mechanical systems, and introduced critical life safety improvements, including a new fire suppression system. As the final component of the CityArchRiver initiative, this project celebrates the courthouse’s legacy while preparing it to serve future generations.
Accessibility was a key priority. The building’s first-ever elevator now provides access to the second-floor rotunda balcony and the restored historic east courtroom. Outside, gently sloped pedestrian ramps at each of the courthouse’s iconic porticos replace a previous single lift, allowing all visitors to enter through the front doors on from the east or the west. These improvements were designed in accordance with the Secretary of the Interior’s Standards for the Treatment of Historic Properties.
In addition to physical upgrades, the courthouse now features all-new exhibits that explore the stories of Dred and Harriet Scott, African American life in St. Louis, civil rights history, and the building’s own architectural significance.
To take a closer look at the renovation process, check out Nine PBS: Inside the Old Courthouse Renovations.
The public is invited to celebrate the grand reopening on Saturday, May 3, with a free festival on the courthouse grounds. Learn more here.
