The $85 million Brewer-Holden-Eddington I-395 Route 9 Connector project, Sargent’s largest to date for the Maine Department of Transportation, was completed on time in late June 2025 after 3 1/2 years of work, opening a new 6-mile, controlled-access roadway linking Interstate 395 with State Route 9 (the Airline). Designed to improve traffic flow, enhance safety, and better serve the regional economy by shifting a major highway route out of downtown Bangor and Brewer, the project involved constructing five bridges and installing seven large box culverts, and required extensive civil work including the use of 70,000 cubic yards of foamed glass lightweight fill and over 850,000 vertical feet of wick drains in saturated areas to ensure a stable platform. The new connector, now officially part of Route 9, is expected to significantly reduce heavy truck traffic on Route 46 and benefit travelers between Calais and the interstate, culminating a process that began with a preliminary engineering study in 1998.
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