The National Mall Tidal Basin — also known as “America’s front yard” — is home to some of the nation’s most iconic landmarks such as the Jefferson Memorial, the Martin Luther King, Jr. Memorial and the Franklin Delano Roosevelt Memorial. But the beloved Washington, D.C. public space is under threat from daily flooding and is in urgent need of critical repairs and improvements. In a bid to save the celebrated landscape, five prestigious landscape architecture firms — DLANDstudio, GGN, Hood Design Studio, James Corner Field Operations and Reed Hilderbrand — have been tapped to reimagine the future of the Tidal Basin and National Mall. Keep reading for a preview of all the designs.

Continue reading below
Our Featured Videos
aerial rendering of parks surrounding white house

In 2019, the National Trust for Historic Preservation banded together with the Trust for the National Mall, the National Parks Service, Skidmore Owings & Merrill (SOM) and American Express to launch the Tidal Basin Ideas Lab, an initiative seeking proposals to save the 107-acre Tidal Basin site in Washington, D.C. After months of preparation, the Tidal Basin Ideas Lab recently unveiled visionary proposals from five award-winning landscape architecture firms including New York City-based DLANDstudio, Seattle-based GGN, Oakland-based Hood Design Studio, New York City-based James Corner Field Operations and Cambridge-based Reed Hilderbrand.

Each proposal not only responds to the pressing issues plaguing the area’s infrastructure but also examines ways to heighten the visitor experience through improved environmental and cultural considerations. Due to the pandemic, the proposals are presented in an online-only, museum-quality exhibition co-curated by New York City curator of design Donald Albrecht and Thomas Mellins, an architectural historian and independent curator. The public is invited to learn about the Tidal Basin’s history, which was completed in 1887 as a major hydrological feat as well as the ongoing challenges and comprehensive proposals. The public will also be able to give feedback and offer ideas on saving the Tidal Basin.

“As part of ‘America’s front yard’, the Tidal Basin is home to some of the most iconic landmarks and traditions in the nation’s capital,” said Katherine Malone-France, Chief Preservation Officer of the National Trust for Historic Preservation. “Yet current conditions do not do justice to a landscape of such significance. With this new digital exhibition, we are excited to share and engage the public with creative thinking from five of the best landscape architecture firms in the world. These ideas explore ways to sustain this cultural landscape and its richly layered meanings for generations to come. This isn’t preservation as usual: this is preservation as innovation.”

Related: BIG unveils sweeping overhaul to Smithsonian Campus Master Plan

True to its name, the Tidal Basin Ideas Lab will be focused on cultivating bold ideas and promoting dialogue between designers, stakeholders and the public rather than choosing a single winner as is typical in design competitions. The exhibition will supplement the National Park Service’s mandated environmental review of the Tidal Basin as well as master planning and detailed design, which have not yet been completed but are integral to securing funding for construction and implementation.

All five creative concepts, revealed late last month, celebrate and raise awareness of the Tidal Basin’s long history and have reimagined the cultural landscape to better meet modern safety and accessibility needs while addressing critical infrastructure repairs and improvements.

aerial rendering of national monuments near white house in Washington, D.C.

DLANDstudio’s proposal makes bold steps of introducing extensions to the landscape in both the Tidal Basin and the Potomac River to reorient circulation. A long land bridge would connect the Jefferson Memorial and the White House, while a new jetty to the west would branch off of the Lincoln Memorial to house the relocated memorial to Martin Luther King, Jr. Flooding would be mitigated with sponge park wetlands, a reflective weir and a green security wall.

rendering of people walking on path shaded by cherry blossom trees

GGN’s vision is an adaptive plan phased across three stages to conclude in 2090. The design uses ecological solutions to protect the landscape from forecasted sea level changes and also the potential adaptation and relocation of existing monuments.

rendering of cherry blossom tree in foreground with national monuments in background

James Corner Field Operations has proposed three ideas for combating rising sea levels: Protect & Preserve, a scheme to keep the existing landscape intact with improved maintenance and engineering; Island Archipelago, in which flooding would be accepted as an inevitable reality and monuments would be elevated and treated as islands within the Tidal Basin; and Curate Entropy, another design where the site is allowed to flood and a careful balance is maintained between the Tidal Basin’s existing layout and the new landscape.

diagram of people looking at national monuments

Hood Design Studio focuses on reshaping the Tidal Basin with underrepresented narratives, from the stories of how wetlands were valued by Indigenous and enslaved peoples to promoting dialogue on rebuilding urban ecologies.

rendering of people on bridge above a park

Reed Hilderbrand’s design draws on the 1902 McMillan Plan, a comprehensive planning document that strongly influenced the urban planning and design of Washington, D.C., particularly with its proposal for a “Washington Commons,” a diverse and connected regional park system. The plan also encourages new interactions with the landscape with an uplands Cherry Walk, a Memorial Walk, a Marsh Walk and a new landform called Independence Rise that would accommodate rising water levels and connect back to the city with a pedestrian bridge.

+ Tidal Basin Ideas Lab

Images via Tidal Basin Ideas Lab