Swinerton breaks ground on $118m Presidio Tunnel Tops project in San Francisco

WCN Editorial Team 9 Dec 2019 NORTH AMERICA BUILDINGS

US-based construction firm Swinerton has broken ground on $118m Presidio Tunnel Tops project in San Francisco, California.

The Presidio Trust is leading the project in partnership with the National Park Service and the Golden Gate National Parks Conservancy.

The new 14 acres national parkland is expected to create highway tunnels with views of Golden Gate Bridge, the Bay, the Presidio, and the San Francisco skyline.

Located adjacent to the newly opened Presidio Visitor Center and a planned transit centre, the project design was shaped based on input from over 10,000 community members across the city.

The project will also feature Gateway Plaza, a social and connective centre of the park hosting the Visitor Center and Transit Center, as well as Golden Gate Meadow a serene landscape of grasses and perennials framing.

The new project, which includes 6,528ft² of new construction and 13,055ft² of rehabilitated work, is expected to use about 96,000 cubic yards of soil and approximately 200,000 plants.

Scheduled to be completed in fall 2021, the new destination will comprise gardens with native vegetation, connective pathways, scenic overlooks, a campfire circle, picnic areas, and a Youth Campus with a three-acre interactive play area designed to connect urban kids with nature.

Upon completion, the project is expected to allow visitors to walk from Crissy Field to the Presidio’s Main Post by enjoying dramatic views along the way.

James Corner Field Operations is serving as the landscape architect for the project; EHDD will be the architect, Miller Pacific will serve as the geotechnical engineer, WOOD as the environmental engineer, Stok will work on sustainability, MKA will be the civil and site structural engineer, Holmes will serve as the building structural engineer.

PAE will be the MEP engineer, HLB will serve as the lighting designer, DD Pagano as irrigation designer, Fluidity as water feature designer and KKA as signage designer.

Swinerton senior project manager Liz Messana said that the project would create about 50 to 70 jobs on-site daily during the peak construction period.

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Image: Swinerton breaks ground on $118m Presidio Tunnel Tops project in San Francisco. Photo: courtesy of Swinerton Incorporated.

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