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The current route of I-90 on a viaduct through the Allston neighborhood carries 150,000 vehicles each day into and out of downtown Boston and is the primary route of vehicular travel from Western and Central Massachusetts into the city. The viaduct, while currently safe for travel, is outmoded and structurally deficient, thus requiring a difficult replacement project within a congested corridor that also includes multiple rail lines, a parkway, and a regionally vital shared-use path.
Arup, as part of a team of independent reviewers, evaluated existing documentation, developed design solutions, conducted site visits, participated in detailed working sessions, and conducted extensive stakeholder outreach as part of a six-month review of the project. Through this process, the team developed an alternative design that balances the needs of users by enhancing the surrounding environment, creating more open space, minimizing travel disruptions, and improving bicycle and pedestrian connectivity through the corridor.
In January 2019, MassDOT announced their endorsement of this design, in which I-90 travel lanes will be rebuilt at-grade, while sections of Soldiers Field Road will be relocated to a new viaduct. The design also includes large expansions of the riverfront land available for recreation.
“While every proposed design has its advantages and disadvantages, I believe this hybrid can be permitted expeditiously, best balances the present-day and future mobility needs of all users and protects and enhances as best as possible the natural and historic resources and public realm of the Charles River Basin and neighboring Allston community ”
Stephanie Pollack MassDOT Secretary and CEO
“Our team is grateful for the opportunity to work with skilled practitioners and passionate advocates to develop new solutions for the Allston project. We look forward to the continued development of the project, which will improve the lives of hundreds of thousands of commuters daily, while providing additional resources for residents and creating new areas for community growth. ”
With over 50 years of experience in the design of transit systems, Arup takes an integrated approach to total infrastructure improvement programs and strategic planning. We’ve had a leading role in the planning and design of some of the industry's most challenging projects across the globe including Second Avenue Subway in New York City, Copenhagen Cityringen, and London's Crossrail and Thameslink. In Boston, we’re providing critical oversight and guidance for the much-needed Green Line Extension Project, and recently completed a comprehensive reevaluation of the long-desired North-South Rail Link Project.
