WCDA Education Instructors

Leofwin Clark

WCDA Education Director

Leofwin Clark is an independent collaborative delivery consultant focused on owner advisory and training services from procurement through completion for CMAR, DB, and O&M projects. Mr. Clark has 30+ years of experience in infrastructure advisory services, with a focus on DB, DBO, and P3 for water/wastewater and transportation projects...

Mark E. Alpert, PE, FDBIA

WCDA Education Instructor

For more than 40 years, Mark Alpert has been a pioneer in the development of collaborative delivery for water and wastewater projects. Even before the term “design-build” was commonly recognized, Mark was focusing on cost-effective design and construction, which led to the formalization of design-build and other collaborative delivery methods.​..

Larry Johnson, PE, DBIA

WCDA Education Instructor

Larry Johnson, PE, DBIA, served on the WCDA Board of Directors and Executive Committee from 2017 to 2021. He served as president of the WCDA in 2020. Larry has 43 years of design, project management, program management, construction management, and collaborative delivery experience in the water and wastewater industry...

Bill Canterbury

WCDA Education Instructor

Bill Canterbury is a construction / project manager with 30+ years of experience in construction, primarily heavy civil, including water and wastewater. His experience includes managing water, wastewater, pipelines, dams, water storage reservoirs, bridges, and parks and recreation projects both as an owner advisor / construction manager for owners and engineers and as a project manager for general contractors..