ZFA STRUCTURAL ENGINEERS

QUINTESSA WINERY
Rutherford, CA

Quintessa Winery appears to be a crescent shaped, stone building. However, the 27,000 square foot winery was built into a hillside to take advantage of the site terrain. Wine storage caves in the hillside connect to the ground level work area. Grapes delivered to the site are processed on the upper level of the winery, which also serves as the roof, and deposited through an opening in the roof deck to the fermentation tanks below. A 4,800 square foot administrative and office building is located at the upper level and nestled into the hillside.
 
SONOMA CUTRER WINERY AND CHAMPAGNE CELLAR
Windsor, CA

10,000 square foot wood framed original Barrel Cellar, Tank, and Crush Room; 30,000 square foot barrel cellar wood framed with a concrete basement with reinforced basement walls and cast-in-place structural slab; 19,000 square foot Bodega constructed of split face concrete masonry walls; 20,000 square foot concrete building using pre-stressed concrete girders; 35,000 square foot East Cellar and a 26,000 square foot West Cellar constructed of heavily reinforced concrete tilt-up walls.
 

RIDGE WINERY - LYTTON SPRINGS
Healdsburg, CA

Tasting and Barrel Room Building - 9,000 square feet building. The walls of this building are made of straw bales using an in-fill style for the walls. The structural system was made of glu-laminated columns and beams made from finger-jointed, decay-resistant, Alaskan Yellow Cedar. The walls are plastered with an earthen plaster and the roof is constructed of Alaskan Yellow Cedar glu-laminated roof beams that are structurally designed to hold photovoltaic solar panels.

Steel Tank Farm - 9,000 square foot building. The walls of this building will be made of straw bales using an in-fill style for the walls, three of which are shared with the existing Tasting and Barrel Room. The interior structural system will be steel framing and the exterior structural system will be Alaskan Yellow Cedar glu-lam columns that are inside the staw bale walls. The walls are plastered with an earthen plaster and the roof is constructed of steel trusses with insulated panels.

   

DOMINUS ESTATE WINERY
Yountville, CA

The winery is a 462' long by 82' wide rectilinear monolith with a stone skin and an internal structural skeleton of concrete tilt-up walls and structural steel supports. Designed by award-winning, Swiss architects, Jacques Herzog and Pierre de Meuron. The project awarded TIME Magazine's 1998 Best of Design and was featured in Architecture Magazine.
Dominus Estate Winery
 

BAYVIEW CELLARS (LAIRD FAMILY ESTATE)
Napa, CA

The 50,000 square foot, cut and cover project consists of a 30,000 square foot barrel room surrounding a fermentation area, tasting room and offices. The high bay fermentation area extends above grade, making it appear as if the roof is popping-up from the ground.
Bayview Cellars
 

VALLEY OF THE MOON WINERY
Glen Ellen, CA

Historic restoration and conversion of 135-year old winery into modern production facility. Original structures included stone walls of the winery and the roof structure and concrete walls of the fermentation cellar. This Glen Ellen winery was given an award by the Sonoma Historical Society.
 

CHÂTEAU ST. JEAN TASTING ROOM
Kenwood, CA

"The new tasting room's design was meant to compliment the architecture of the historic chateau and provide a spacious and inviting setting to display Chateau St. Jean's wines and other products they have for sale. It was designed to look like an orangerie in the garden of the original house. The design is complimented by the completely new landscape design by the Olin Partnership."- Scott Bartley, A.I.A., Hall & Bartley
 

ARTESA VINEYARDS AND WINERY
Napa, CA

This cast-in-place and precast concrete winery facility occupies 128,000 square feet and has a structural steel second floor. Construction was "fast tracked" and the structural documents completed in two months. This project received the 1992 Precast/Prestressed Concrete Institute Design Award for Excellence in Engineering Design. (Formerly Codornui Winery)