On Thursday, May 19th, we celebrated our 125th Anniversary in Grand Rapids with over 400 employees, retirees, clients, trade contractors, and general area business partners. Check out a few photos from the event.








On Thursday, May 19th, we celebrated our 125th Anniversary in Grand Rapids with over 400 employees, retirees, clients, trade contractors, and general area business partners. Check out a few photos from the event.

Join O-A-K team members Dave Fleece and Trevor Anderson, along with Kristin Pfauth from the City of Grand Rapids, for a tour of the Archives & Records Center. While only about 10 percent of the city’s collection is on display at the public museum, the remaining 90 percent, over a quarter million items, are housed here at the archives.
This project will create a bright, open space designed for access and collaboration. Visitors will be able to request items, collector groups can gather, and teachers can bring students for hands-on learning experiences. One classroom will feature a retractable glass wall, allowing the space to be opened up or closed off as needed, while a permanent glass wall will offer visitors a direct view into the archives, connecting the public to the city’s rich history.

Take a look inside Prein&Newhof’s new water testing lab, a space designed to support advanced testing and continued innovation.

Owen‑Ames‑Kimball (O‑A‑K) is pleased to announce the appointment of Rachael Martemucci as Director of Education Market Development, a newly established leadership role reflecting the construction management company’s continued commitment to the K12 education sector.
The creation of this position is a strategic investment in the future of O‑A‑K’s education work. As Director of Education Market Development, she will focus on strengthening client services, developing talent and unifying teams across several departments.
“This role reinforces our dedication to being a trusted partner for school districts,” said Frank Stanek, PE, President & CEO. “By investing in focused leadership for the largest market sector we serve, we are positioning O‑A‑K to continue to serve our clients well while responding to the evolving needs of K12 facilities and communities. Rachael is a collaborative leader, and we look forward to continued success with her guidance.”
With Michigan schools facing increasing demands for safe, modern, and flexible learning environments, O‑A‑K’s expanded leadership structure ensures the firm remains at the forefront of school construction changes. Martemucci’s work will support not only market leadership, but also sustainable growth, innovation, and long-term client success.
Martemucci came to O‑A‑K in 2010 and has been the firm’s Director of Marketing for over a decade. She has worked with over 20 local school districts and brings a wealth of knowledge in pre-bond operations and communication strategy.

Construction is underway on Castle Rock Fire Station 156 and a new Logistics Center, a project that will strengthen emergency response and support services for one of Colorado’s fastest-growing communities.
Owen-Ames-Kimball joined the Town of Castle Rock, Castle Rock Fire and Rescue, and project partners to mark the start of construction. As Construction Manager/General Contractor, O-A-K is working alongside RS&H and Dunakilly Management Group to deliver a facility designed to support both frontline response and the behind-the-scenes operations that keep it running.
The project combines a new fire station with a dedicated logistics and fleet maintenance facility—an investment aimed at improving response times, increasing operational efficiency, and ensuring first responders have the resources they need to serve the community.
“This station will help us continue to respond quickly when people need us most,” said Fire Chief Norris Croom. “Fire Station 156 strengthens our coverage in northeast Castle Rock and gives our crews the resources they need to serve residents safely and effectively.”
Early in the process, the team worked together to relocate the building outside of an existing floodplain. The adjustment introduced added complexity, including additional excavation, extended utilities, and the installation of a 30-foot soil nail retaining wall. By addressing these challenges during design and preconstruction, the team was able to maintain the building’s overall program while setting the project up for long-term performance.
Once complete, the facility will support the department’s Logistics Division and Fleet Support team, which oversees the maintenance and coordination of emergency response vehicles. The new station will also expand coverage for surrounding neighborhoods, helping the department keep pace with continued growth in Castle Rock.
This project reflects a shared commitment between the Town and its partners to invest in infrastructure that directly supports public safety and community well-being. O-A-K is proud to partner with Castle Rock Fire and Rescue and the broader project team to bring this facility to life.

Each year, our March Madness event brings our team together at the Operations Center for an afternoon of connection and celebration. From lunch and tournament games to golf simulator competitions, it’s a chance for our field and office teams to come together, strengthen friendships, and celebrate the work we do every day.

Join O-A-K team members Dave Fleece and Trevor Anderson, along with Kristin Pfauth from the City of Grand Rapids, for a tour of the Archives & Records Center. While only about 10 percent of the city’s collection is on display at the public museum, the remaining 90 percent, over a quarter million items, are housed here at the archives.
This project will create a bright, open space designed for access and collaboration. Visitors will be able to request items, collector groups can gather, and teachers can bring students for hands-on learning experiences. One classroom will feature a retractable glass wall, allowing the space to be opened up or closed off as needed, while a permanent glass wall will offer visitors a direct view into the archives, connecting the public to the city’s rich history.
