Jeff Naff

Relationships are what’s important to Jeff, and with his 30+ years of experience in the industry, Jeff has partnered with most of the key players responsible for California’s water and wastewater systems, including suppliers, subcontractors, designers, and managers. Jeff directs work acquisition for our municipal infrastructure group, which has built more than $1B in California […]

Larry Etcheverry

Larry has been with Overaa for more than 30 years and he is responsible for estimates, bidding, and subcontractor partnerships. Larry oversees and participates in each bid opportunity at Overaa. He also manages preconstruction services including: trade-by-trade budget estimates, constructability reviews, historical cost data analysis, phasing, and schedule analysis. Larry began his career at Overaa […]

Maggie White

Maggie demonstrates deep empathy for the welfare of Overaa employees. She tirelessly advocates for work/life balance and professional growth opportunities for everyone on our team. Under her leadership, Maggie has developed a leadership training program and a company culture of continuous learning and improvement. Maggie’s zeal for promoting a healthy and fun workplace (such as […]

Ben Brown

Ben has been with Overaa for over 20 years, specializing in water infrastructure project delivery for municipal clients. His collaborative approach to problem-solving and strong technical capabilities have helped him lead some of Overaa’s most challenging and complex projects. Since joining Overaa, Ben has been involved in projects that have cumulatively delivered 400+ Million Gallons […]

Kara Overaa Gragg

A 4th generation member of the Overaa family, Kara brings refreshing angles on the ideas of service, integrity, and value. Kara joined the team in 1994 as project engineer and she has focused much of her career on developing innovative practices that have helped Overaa stay at the forefront of the construction industry. With the […]

Erin Overaa Dissman

A 4th generation member of the Overaa family and computer nerd at heart, Erin is responsible for Information Technology at Overaa. She previously served as a project engineer and later as project manager at Overaa, and she now combines her hands-on background in construction management with her love for technology to create a powerful suite […]

Colby Powell

Colby joined Overaa in 1996 as project engineer and has gone on to deliver signature projects while cultivating long-term client relationships. Colby uses his background in both architecture and construction management to fuse concepts of design with constructability while maintaining a sensitivity to quality and cost. He has a keen eye for honing in on […]

Mike Conrad

Mike has been with Overaa for since 2001 and specializes in new construction and modernization public education projects with alternative delivery methods such as design-build and lease-leaseback. Mike has managed more than $1B in large and complex K-12 and higher education projects, and delivered over 30 high-quality alternative delivery method construction projects for school districts. […]

Dale Jackson

Dale joined Overaa in 1986 and is a seasoned expert at all aspects of project stewardship, financial control, quality execution, and safe work practices. He directs all of Overaa’s field operations including: safety, quality control, production, and craft resources. He also oversees our Self Perform Group, which performs all phases of concrete, wood framing, site […]

Carl Overaa

As a 4th generation owner of Overaa, Carl is in charge of building customer alliances and leading project procurement and preconstruction services. Under Carl’s direction, Overaa has become the go-to partner for design-build and alternative delivery projects, which account for 70% of the firm’s revenue. Carl also brings expertise in projects with construction financing and […]