11th Street Bridge
By far the largest District Department of Transportation (DDOT) project completed to date, the 11th Street Bridge Project is critical to improving travel and achieving the larger vision of the Anacostia Waterfront Initiative.
The project replaced two bridges built in the 1960s with three new bridges that separate local and freeway traffic.
The new freeway bridges also provide the missing interstate connections between 1-695 (also known as the Southeast-Southwest Freeway) and DC-295, fixing a long-standing deficiency that forced motorists to use local streets to connect to and from both freeways.
The new 11th Street Bridges provides critically needed infrastructure, relieves local streets of interstate traffic and connects pedestrian and multi-modal traffic on both sides of the Anacostia River.
The project is divided into two phases:
The first phase provided three new bridges; a new 14-foot-wide pedestrian and bicycle sidewalk on the local bridge that connects to the Anacostia Riverwalk Trail; drainage and other environmental investments to treat all storm water within the project area; an additional evacuation route; and design accommodations for the future streetcar system.
In order to encourage contractors to develop innovative ways to deliver the project efficiently under financial constraints, DDOT used a design-build-to-budget procurement method that not only significantly reduced the cost by approximately $100 million, but also allowed DDOT to accelerate the construction schedule by five months. Phase I was completed ahead of schedule and within budget in July 2013.
Because of the success of Phase I, FHWA authorized DDOT to proceed with the remaining 20 percent (Phase II) of the project. Phase II of the 11th Street Bridge Project further improves connections along the I-695 (aka SE/SW Freeway) and lays the groundwork for its reconstruction to a level Boulevard between 8th Street SE and Barney Circle (Pennsylvania Avenue). Phase II construction started on July 2012 and was completed in September 2015.
Key features of Phase II of the 11th Street Bridge Project:
- Replaces the dilapidated, two-lane I-695 outbound flyover bridge (over M Street) with a new, three-lane bridge.
- Provides better access to Capitol Hill and Historic Anacostia via new ramps on 11th Street from the I-695 (aka SE/SW Freeway) and Boulevard.
- Raises the SE/SW freeway approximately 20 feet between 8th and 13th Streets and re-designate it as a Boulevard.
|Began Construction||December 2009|
|Northbound I-295 Off-Ramp to Anacostia/Capitol Hill||Early October 2012|
|Anacostia/Capitol Hill On-Ramp to Southbound I-295||Mid-October 2012|
|Southbound DC-295 Off-Ramp to Anacostia/Capitol Hill||End of 2012|
|Anacostia/Capitol Hill On-Ramp to Northbound DC-295||End of 2012|
|Northbound and Southbound DC-295 local bridge ramps||Mid-2013|
|Phase I Completion||July 2013|
|Local Bridge Completion||September 2013|
|Completion of Construction||September 2015|