Auburn, Maine Office



Frank L. Crabtree, P.E., LEED AP BD+C

Associate, Civil Engineer

Frank L. Crabtree’s 36 years of experience includes a wide range of civil, environmental and site engineering for large and small sites for many governmental and educational clients. He has extensive experience in environmental storm water management and in managing the permitting and approval process required by state, federal, and municipal agencies.

Frank also coordinates Harriman’s sustainability processing for the office and for our clients. Beginning with the certification of Maine’s first LEED-certified university building, Frank has managed the process for many public and private sustainable projects over the past 10 years. He has extensive experience managing the team of designers, owner, and contractor through the various stages of the sustainability planning, designing, constructing, and certifying. Frank’s work has been primarily with the US Green Building Council (USGBC) LEED Certification process, which is the benchmark standard in the U.S.