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James W. Sewall


Maine Traffic Resources acquired by James W. Sewall Company. Sewall creates traffic engineering powerhouse to aid Maine’s aging infrastructure needs

 James W. Sewall Company (Sewall) announces today that it has acquired Maine Traffic Resources (MTR) and welcomed founder, Diane W. Morabito, P.E., PTOE, as its new Vice President of Traffic Engineering.

The addition of this well-known and respected transportation engineering firm to its portfolio will assist Sewall in providing complete traffic engineering services to all levels of government and private clients. MTR/Sewall has already won work on the most innovative and extensive traffic engineering and infrastructure rehabilitation project in Maine’s history as part of a team effort.

Ms. Morabito brings with her decades of outstanding traffic impact and permitting for new developments as well as transportation and design services to numerous municipal clients throughout the State. She has performed hundreds of traffic impact studies, as well as downtown studies, corridor studies, parking studies and design work, including traffic signal modifications and installations. She has provided review services to numerous Maine municipalities that are without in-house traffic engineering staff.

Diane holds MS and BS degrees in civil engineering from the University of Massachusetts at Amherst. Currently, she is Chair of the Transportation Professional Certification Board Inc., and a member of Tau Beta Pi, National Engineering Honor Society. She received the New England Distinguished Service Award in 2004 from the Institute of Transportation Engineers. She has served as President of the Maine Chapter and New England Sections of the Institute of Transportation Engineers.

“Joining forces with Sewall will provide MTR with extra capacity and support in offering traffic engineering design for new intelligent transportation system (ITS) demands. To that end, Sewall has recently hired additional traffic engineering talent such as Lynn Frazier, P.E., PTOE, and Heather Hayes, P.E., to add to its talented engineering staff,” says Ms. Morabito.

George Campbell, Sewall’s president, tells us “Diane spent the first five years of her career at MaineDOT when I was commissioner. She impressed me then as a hard worker and an exceptional designer. Since then, her experience and extraordinary expertise have earned her a reputation as one of the top traffic engineers in the country. The acquisition of her company and talent, added to the existing engineering bench strength at Sewall, has created a traffic engineering powerhouse. We look forward to assisting local and State government in modernizing its aging transportation infrastructure as well as continuing to serve private development needs.”

Diane Morabito will work out of the TFIC/Sewall offices at 40 Forest Falls Drive, Suite 2, in Yarmouth, Maine. She can be reached by email at or, or by calling (207) 817-5440.

About Sewall:
James W. Sewall Company (Sewall) is a multi-disciplined consulting firm providing services to government, energy and utilities, and the forest industry. Founded in 1880, Sewall is comprised of professional engineers, surveyors, natural resource consultants, and geospatial and information consultants and technologists. Sewall’s owner, Treadwell Franklin Infrastructure Capital LLC (TFIC), is an integrated infrastructure business that focuses on developing and sponsoring the commercial infrastructure of the United States. It is a fundless sponsor - an originator and servicer - of infrastructure investments for private equity, family office, and institutional investors.



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