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    • Husson Townhouses
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Workers and manager in safety helmets working with documents at factory table

Structural Engineering

Safety is our priority.

Sewall specializes in bridge load ratings and associated inspection services as well as highway ancillary structure inspections. Our visual assessments assist decision-makers in determining structural integrity, functionality, and durability.  

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Top view of two construction workers wearing hardhats and reflective jackets holding tablet and checklist on gray concrete background. Group of engineers sharing ideas about the project.
Civil Engineering
A Highway intersection with cars and traffic lights. Top view from drone
Transportation & Traffic Engineering
photo of heather hayes
Heather Hayes
Engineers at work
Surveying
Portrait of construction engineers working on building site together
Infrastructure
Civil Engineer Jobs, Double exposure of Project Management Team and Construction Site with tower crane background, Engineer Designer Consultant and Architecture Team concept.
Program & Construction Management

TFIC ANNOUNCES FOCUS ON US NORTHEAST; INAUGURATION OF TFIC ADVISORY BOARD

Following the successful conclusion of its first half-decade in business, Treadwell Franklin Infrastructure Capital LLC (“TFIC”) is pleased to announce it has finalized and initiated the execution of its second five-year strategy and business plan for FY2021-2025.  Kick-off of the plan is punctuated by the inaugural meeting of the newly constituted TFIC Advisory Board on […]

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Company plans biorefinery for zero-emission heating oil in Maine

Biofine Developments Northeast Inc. of Bangor has formed a partnership with Sprague Resources LP to produce a patented biofuel made from forest product waste. A technician takes a reading from an apparatus that turns wood waste into biofuel in this 2017 photo of Biofine’s test facility in Old Town. The company plans to open another […]

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Old Town, ME 04468
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