The District Department of Transportation (DDOT) successfully achieved substantial completion of Phase I of the 11th Street Bridge Replacement Project on June 27, 2013.
WASHINGTON, DC — The District Department of Transportation (DDOT) successfully achieved substantial completion of Phase I of the 11th Street Bridge Replacement Project on June 27, 2013. Substantial Completion meaning the point of construction at which all proposed roadways are completed and open to traffic. Phase I provided: the missing interstate connections between I-695 (also known as the SE/SW Freeway) and DC-295 (Anacostia Freeway), three new 1,000 foot river bridges over the Anacostia River, and four new ramps for motorists to access Historic Anacostia and Capitol Hill. In November 2012, Roads & Bridges magazine named the new 11th Street Bridge its No. 1 Bridge of 2012.
In 2009, DDOT began construction on the new 11th Street Bridge Project, the District’s first river bridge replacement in 40 years and the largest project in DDOT’s history. The project allows for direct connections between the DC-295 (Anacostia Freeway) and I-695 (SE/SW Freeway), diverting traffic from local roads. It also replaces the structurally-deficient spans and provides an enhanced emergency evacuation route.
The initial estimated cost for the project was $459 million, far more than the $300 million DDOT was able to finance. In order to encourage contractors to develop innovative ways to deliver the project efficiently under financial constraints, DDOT collaborating with HNTB Corporation, 11th Street Bridge Construction Manager, used a design-build to budget procurement. This procurement method not only significantly reduced the cost of the project, approximately $100 million, but also allowed DDOT to accelerate the construction schedule by five (5) months. “Being ahead of schedule and within budget is a point of pride and significant accomplishment on this major capital improvement project and economic revitalization effort,” said Nick Nicholson, DDOT Chief Engineer. “One of the big takeaways for me has been the power of the design-build-to-budget delivery method, which offers innovative alternatives to traditional techniques to do more with less.” The design-build-to-budget delivery method resulted with the winning proposal from Skanska/Facchina, Joint Venture with a concept which delivered 80% of the project for 60% of the original cost.
With the initial success of Phase I, DDOT prepared a roadway user-cost analysis which resulted in FHWA authorization to proceed with the remaining 20 percent (Phase II) at a cost of approximately $90 million. Phase II construction started in July 2012 and is scheduled to be completed in November 2015.
The Anacostia Waterfront Initiative (AWI) is one of the most ambitious development plans in the history of the District of Columbia. Spanning 30 years and comprising $10 billion worth of investment, the AWI pledges to restore and revitalize the Anacostia River. Led by the District of Columbia government the AWI vision is to reconnect to the river, so that widespread access to the Anacostia River and its new parks, recreational, cultural, residential and commercial centers is possible.
For more information about AWI and the 11th Street Bridge Replacement Project, visit: www.anacostiawaterfront.org .
To join either the Project or AWI Community contact lists please email firstname.lastname@example.org.