Transbay Transit Center
   
The new Transbay Transit Center in downtown San Francisco will replace the current bus terminal at First and Mission Streets with a multi-modal transit center serving eleven transportation systems. Image: Transbay Transit CenterProject Name: Transbay Transit Center
Year: Current
Owner: Transbay Joint Powers Authority
Location: San Francisco, CA, USA
Building Type: Commercial
Type: Intensive
System: Custom
Size: 235224 sq.ft.
Slope: 2%
Access: Accessible, Open to Public
Submitted by: Greenroofs.com

Designers/Manufacturers of Record:
Developer: Hines
Architect: Pelli Clarke Pelli Architects
Landscape Architect: Peter Walker and Partners Landscape Architecture
Lead Ecologist: Paul Kephart, Rana Creek
The Transbay Transit Center will centralize the region’s transportation network by conveniently connecting all points in the San Francisco Bay Area for more than 100,000 passengers per day. The TJPA is building a state-of-the-art bus and rail station—the "Grand Central Station of the West"—that will accommodate eleven transit systems from the Bay Area and Southern California. The new Transit Center will make world-class public transit options accessible, seamless, safe, and efficient.

Rana Creek, the California-based company specializing in habitat restoration and regenerative design, announced their win as the Lead Ecologist for the 5.4 acre park to sit atop the new state-of-the-art Transbay Terminal Center in San Francisco in late September, 2007. The Transbay Terminal Center and Tower will stand 70- feet-tall and stretch from Beale Street to Second Street. The structure will house commuter buses from around the area and provide the region with 5.4 acres of green space. The Press Release (see below) states, "The team was awarded the contract to construct a "living roof" over two competing proposals submitted during the Transbay Terminal Center Competition.

The first phase of the Transbay Transit Center Project commenced in December 2008 with the groundbreaking of the Temporary Terminal. Demolition of the Transbay Terminal commenced in August 2010; the first phase is under construction and on
schedule to be completed in 2017.
Paul Kephart, Executive Director of Rana Creek stated, "Rana Creek's design will promote extensive energy savings for the Transbay Terminal Center as well as provide thriving habitats for Bay Area native plant and wildlife populations threatened by urban development. Not only will this green roof provide the people of San Francisco with a much needed public park, it will protect the endangered species, such as the Bay checkerspot butterfly, that have all but disappeared from this urban area."

The name of the 5.4-acre rooftop park on top of the Transit Center will be "City Park," which will include an open air amphitheatre, gardens, a trail for running/walking, open grass areas for picnics, lily ponds and more. Designed to house more than six native plant communities, the Transbay Terminal Center's green roof will feature bodies of water, statuesque trees and an urban park dedicated to sustainability.

The project will treat all water from the neighboring 82-story Transbay Terminal Tower as well as filter and process the exhaust from the below railways. Kinetic fountains powered by the bus movement will aerate the water for the rooftop wetlands. In order to create the most ecologically functional green roof, Rana Creek will use native plant communities, such as grasslands, that survive in similar bioregional conditions. The green roof build-up system will consist of a root barrier and water drainage system.

Additional thumbnail photos:

Vehicleswill travel under the elevated portion of the station.  Image: Transbay Transit Center.Cross Section View of the new Transbay Transit Center: The five level Transit Center will serve both bus and rail and will include a 5.4 acre rooftop park.  Image: Transbay Transit CenterThe new Transbay Transit Center in downtown San Francisco will replace the current bus terminal at First and Mission Streets with a multi-modal transit center serving eleven transportation systems. Image: Transbay Transit Center. Image: Transbay Transit Center.View of the Grand Hall. Image: Transbay Transit Center.
Visit the Transbay Transit Center website, where you can see a very cool 1:23 flyover video on Vimeo. See the 9.28.07 Press Release from JRJ.com and the project profile from Rana Creek. Visit Rana Creek at http://www.ranacreekdesign.com/.
 
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