Letterman Digital Arts Center, a 23-acre campus on the site of the former Letterman Army Hospital in the Presidio, will serve as the new San Francisco home for Lucasfilm Ltd. The campus includes 800,000 square feet of office space, four buildings, and 17 acres of park land that is open to the public.
Lawrence Halprin served as the Master Planner and Landscape Architect of the 23 acre campus. QuarryHouse was hired to implement his vision in stone. The centerpiece of the project is a 500 foot long meandering stream constructed from the remnants of a stream bed purchased from a Northern California rancher. Using Halprin’s design, QuarryHouse artisans fit the remnants together as water sculpture. Stone pillars welcome guests at the park’s pedestrian entrance on Chestnut Street and at Lyon Street, while two stone belvederes provide outlooks to take in the beauty of the park, which includes fountains, rolling hills and a lagoon flanked by large boulders. QuarryHouse stonemasons also installed resting stones in a lagoon-side plaza, each placed to offer a distinct view of the San Francisco Bay, Golden Gate Bridge, Tiburon, and Alcatraz Island.
Robert Paganini: Project Manager
Jason Joplin: Superintendent
Edward Westbrook: Principal in Charge
|The Office of Lawrence Halprin||Lawrence Halprin (In memoriam)|
|The Presidio Trust||http://www.presidio.gov/explore/Pages/letterman-digital-arts-center.aspx|
The gentle stream that runs 600 feet down from the source, each rill and fall was composed with careful thought to the sound and natural feel.
Halprin designed each section of the stream as a composition, so water meanders in some sections and spills burbles in the next turn.
The center axis of the stream aligns with the Palace of Fine Arts, creating a world class vista.
We used massive one and two ton stones in the belvedere walls where the headwaters of the stream begin. Tight fit joints show the high skill of QuarryHouse masons.
The walls are built in coffer style with structural concrete cores placed after careful drystack stone work is fit together with masters skills, this makes extremely strong and long lasting walls. QuarryHouse uses 21st century engineering coupled with traditional skills to make extraordinary work.
The stream terminates in the lagoon where large boulders provide informal seating for people to enjoy the views and sounds of cool water.