BQE Cantilever Reconstruction

Update

The NYC Department of Transportation (DOT) began a 5-year planning process in Spring 2016 in preparation for rehabilitating the BQE Triple Cantilever.  At a June 29th public meeting, DOT reviewed the project’s goals, milestones and timeframe, as outlined here. As an initial step, the agency has initiated a detailed examination of the 21 bridge structures that comprise this section to determine their condition and the scope of repairs.  It will also select an engineering firm to explore various rehabilitation options, including measures to mitigate adverse environmental effects, such as maintaining traffic flow while construction proceeds. As part of this study, the firm will perform a detailed environmental analysis.  Along with replacing deficient structural elements, DOT’s plans will involve upgrading the highway’s roadways and ramps to make them safer for the 140,000 vehicles that use the BQE daily.  DOT expects construction to begin in 2021 or 2022 and be complted by 2026. To expedite the project and lower the cost, the City will seek authorization by the State Legislature for a design-build approach.  While design options have yet to be fully formulated, DOT has ruled out as infeasible any of the tunnel options that were considered in an earlier round of planning.

About This Issue

2.3.1_BQE_CANTILEVER_ACCT_WORKSHOPThe BQE, also known as I-278, was built in the 1940s with a 1-1/2 mile structure known as the “triple cantilever”  that extends from south of Atlantic Avenue to Sands Street, just north of the Manhattan Bridge. It carries eastbound and westbound traffic on separate levels under the world-famous Promenade. While the BQE is owned by the NYS Department of Transportation, it is maintained by the NYC Department of Transportation.

Now nearing 80 years old, the triple cantilever is in serious need of reconstruction due to structural deterioration and the requirement to bring the highway up to modern standards with regard to lane widths, truck clearances and road and ramp geometries.  When the reconstruction is begun, the BQE’s traffic will have to rerouted for years, including the potential for moving it onto a nearby temporary structure, to maintain essential connections to the Brooklyn and Manhattan Bridges, local streets and the regional highway network.  The planning for the project will be concerned as well with minimizing its environmental impacts on Brooklyn Heights and adjacent neighborhoods.

The City has allocated $1.7 billion for the project in its 10-year capital budget, but additional funding is likely required from federal and state sources.  The BHA will be an active participant in the ongoing planning process and work with other stakeholders to advocate for a rebuilding option that is least disruptive to the community while providing benefits for Brooklyn Heights residents.  For that reason, the plan must also address (1) improving access to Brooklyn Bridge Park to relieve the burden currently experienced by Joralemon Street residents, and (2) improving the design of the areas through which the highway passes on the north and south ends of the cantilever, which include many currently unusable open space parcels.

Learn More

Planning for the BQE cantilever project is a complex undertaking that has been going on for many years. To understand more about the complexity of this project, click here to view the results of a planning workshop conducted in 2006.