Start the Clock: Groundbreaking Held Today for Brethen Tower

Woolpert is providing the civil and structural engineering for this landmark addition to Carillon Historical Park.

Dayton, Ohio (May 9, 2018) — A groundbreaking ceremony was held this morning for Brethen Tower at Carillon Historical Park in Dayton. The tower will be more than 100 feet tall and hold the historic Callahan Clock, which dates to 1892.

Woolpert is providing the civil and structural engineering for the tower, Roll & Associates is providing the code review and architectural support services, and Brackett Builders is the contractor. Woolpert Project Manager Frank Monastra said the tower will be located on the park’s west end, strategically distanced from the Deeds Carillon bell tower, and will be visible from Interstate 75.

“The observation platform will be about 70 feet above the ground and the clock will be illuminated at night, enabling it to be seen for miles,” Monastra said. “The clock unit weighs 15,000 pounds and is being refurbished by The Verdin Co., a world-renowned Cincinnati firm.”

Dayton History reported that the tower will be interactive and interpretive, and include panels educating guests about the history of the clock, the surrounding landscape and transportation corridors. Brady Kress, Dayton History president and CEO, thanked the Brethen Foundation for championing the return of the Callahan Clock to the Dayton skyline.

“As a private non-profit museum, everything we do here is donor driven,” Kress said in a Dayton History press release. “The Brethen Foundation stepped forward to first help build our Carousel of Dayton Innovation, and now their philanthropy is propelling this major project dreamed about since adopting the clock in 2006. We are so thankful and thrilled with the family’s generous support.”

Brethen Tower, which is scheduled to open this fall, will serve as a major anchor to Carillon Historical Park’s 65-acre campus. It will join the existing Carillon Brewing Co., the Build for Tomorrow Theater and the Tree of Light as significant new attractions, and is part of Carillon Historical Park’s larger master plan that includes its upcoming Leadership Center. The 33,000-square-foot gathering space will connect the Carillon Brewing Company and Kettering Family Education Center.

Woolpert is providing the civil and structural engineering for the Leadership Center, as a subconsultant to Roll & Associates, and Danis Construction is the contractor.

“We’ve been in town for 107 years and have our national architecture, engineering and geospatial (AEG) headquarters here,” Monastra said. “We value our company heritage here in Dayton, and we value being Dayton History’s trusted design partner. It’s a privilege for our team to be part of this historic project.”

About Woolpert
Woolpert is the fastest growing architecture, engineering and geospatial (AEG) firm in the country, delivering value to clients in all 50 states and around the world by strategically blending engineering excellence with leading-edge technology and geospatial applications. With a dynamic R&D department, Woolpert works with inventive business partners such as Google and Esri; operates a fleet of planes, sensors and unmanned aircraft systems (UAS); and continually pushes industry boundaries by working with advanced water technologies, asset management, building information modeling (BIM) and sustainable design. Woolpert’s mission is to help its clients progress and become more progressive. For over 100 years and with 25 offices across the U.S., Woolpert serves federal, state and local governments; private and public companies and universities; energy and transportation departments; and the U.S. Armed Forces. For more information, visit or call 937-531-1258.