Oma Architects, 11th Street Bridge Park is a place of exchange with two historically disparate sides of the river with a series of outdoor spaces and active

Oma Architects

After a seven-month nationwide competition, the design for Washington, DC’s 11th Street Bridge Park by OMA + OLIN was unanimously selected by the competition jury. The design team was asked to transform an aged-out freeway bridge into a one of a kind new civic space over the Anacostia River.
Oma Architects / 11th Street Bridge Park
Oma Architects / 11th Street Bridge Park
Oma Architects / 11th Street Bridge Park
Oma Architects / 11th Street Bridge Park Oma Architects / 11th Street Bridge Park
Oma Architects / 11th Street Bridge Park
The team’s design concept connects two historically disparate sides of the Anacostia River with a series of outdoor programmed spaces and active zones, including two sloped ramps that elevate visitors to maximized lookout points to landmarks in either direction. Each ramp terminates in a waterfall that reconnects the ramps to the river below. On the east side, the waterfall is linked to an active filtration system that in conjunction with new wetland areas adjacent to the bridge piers works to actively clear the river. To encourage visitors to the bridge and neighboring communities, the design includes amenities for comfort and refreshment and an open plaza for markets, festivals, and theatrical performances. The form of the bridge creates an iconic encounter, an “X” instantly recognizable as the river’s new image.

While the bridge is a unique and iconic structure, its character and essence are rooted in making this river landscape accessible to the community. Through programmed activities the bridge will showcase the region's unique cultural and natural history. To encourage visitors to spend time on the bridge and neighboring communities throughout the year, amenities for comfort and refreshment (restrooms and food), mitigation of climate extremes (shade and warmth), and opportunities for seasonal programming are provided along the entire length of the bridge. The bridge provides a gateway to events with strong roots in the adjacent communities.
The intersection point of the two paths shapes the central meeting point of the bridge-an open plaza that provides a flexible venue for markets, festivals, and theatrical performances held throughout the year. The paths that frame this plaza further enhance the bridge as a hub of activity, providing a sequence of zones designated for play, relaxation, learning and gathering.

Oma Architects, 11th Street Bridge Park, provide spaces
Oma Architects / 11th Street Bridge Park
Oma Architects, 11th Street Bridge Park, active zones
Oma Architects, 11th Street Bridge Park, active zones
Oma Architects, 11th Street Bridge Park, active zones
 The paths also form elevated platforms on a 5% slope with views to the Anacostia River, the activities on the bridge, and prominent landmarks within Washington DC and Anacostia. These platforms simultaneously provide shade and shelter for the café on the southeast side and the performance space and hammock grove on the northwest side. At each side, a waterfall marks their terminus and reconnects them to the river below. On the east side, this waterfall is linked to an active filtration system that-together with new wetland areas adjacent to the bridge piers-works to actively clean the river around the Anacostia Crossing.

The activated zones and multiple levels of the Anacostia Crossing also bring visitors down to the river itself. A series of voids along the bridge provide spaces for play and access down to the river itself. The performance space and café are each partially carved into the body of the bridge, creating intimate zones with views to the waters below. Together, these areas allow visitors to engage the river from multiple vantage points, from above to take in its majesty, or engaging with the waters for boating and recreation.

11th Street Bridge Park / Oma Architects Graphic files:


11th Street Bridge Park , approach of the idea
Architects Oma, approach of the idea
Architects Oma, approach of the idea
Oma Architects, Graphic files
Oma Architects, Graphic files11th Street Bridge, section11th Street Bridge
Oma architects said that :The Environmental Education Center will provide a variety of programs which tell the rivers 400 year history of the River. The Anacostia watershed lost much of its original hardwood forest cover, grassland meadows and tidal wetlands due to the treatment of this landscape by those that lived here as a commodity and not a valued resource. Anacostia Crossing will be a beacon that illuminates the challenged health of the River as well as highlights the possible solutions demonstrated by numerous ongoing efforts to clean the river, build community and educate our next generation of river stewards and engaged citizens. Our design will serve as a catalyst to improve the ecological integrity of the Anacostia River through demonstration and education on ecosystem enhancement as well as restoration shoreline plantings making it once again one of our Nation's greatest waterways.
Anacostia Crossing works to promote the health of the citizens of Washington DC particularly those who live in Wards 6, 7 and 8 reflecting the communities' aspirations for a new quality of life. The design builds upon and connects to the existing Anacostia Riverwalk Trails on both sides of the river and creates a new topography for the public to engage and explore. Programmatic elements are also extended in a Phase 2 to provide stepping stones to the heart of Historic Anacostia encouraging residents to explore this new place in the city.


OMA Project details:

Client:: 11th Street Bridge Park

Architect: OMA + OLIN 

Type: Parks, Public Gardens / Bridges and Roads / Bridges and Walkways / Cycle Paths / Tunnels 

Program: Cafe, Environmental Education Center, Art Space, Playspace, Amphitheater, Plaza, Green Space, Beer Garden, Decking

Location: Washington DC, USA

Status: Current works

Year: 2014

Article by: Architecture Design
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