Landscape Architect & Specifier News

JAN 2018

LASN is a photographically oriented, professional journal featuring topics of concern and state-of-the-art projects designed or influenced by registered Landscape Architects.

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The city of Santa Rosa received a grant from the State Water Resources Control Board to convert 34,000 square feet of existing lawn and irrigation at the front of city hall into a demonstration garden modeling water-use efficiency and low impact development (LID) features. Santa Rosa (pop. 174,170) is the county seat of Sonoma County, and lies 55 miles north of San Francisco. This is wine country, of course, and Santa Rosa is wine country's largest city. There are over 400 wineries in Napa and Sonoma counties. This fertile, coastal land was home to the Pomo Indians and was not founded by settlers until 1833. The city takes its name from Saint Rose of Lima, Peru, a lay member of the Dominican Order. The design of the demonstration garden was a collaborative effort that included a design charrette with sustainable landscape industry leaders (local landscape architects, nonprofit organizations, private industry experts and city staff) from Sonoma County and beyond. Left: For the city of Santa Rosa, Calif., Gates + Associates designed a water efficient demonstration garden with low-impact development features. The rendering imagines the garden fully grown in. Right: A 2,200-gallon galvanized steel rainwater-harvesting cistern was craned into place next to the outdoor classroom. It collects roof water via down spouts. It takes a 2" rain to fill the cistern. Santa Rosa averages about 52" of rain a year. There's an overflow spillway at top, plus a ½" dia. drip manifold near the bottom of the tank to distribute water. The cistern is mated to a weather-sensitive irrigation controller. Note: The water tank company (American Tank Co. of Windsor, Calif.) has field-erected a 105,000-gallon tank at a private residence in Sunol, Calif., just to give you an idea of how large these tanks can be. The graffiti resistant concrete picnic tables are from Quick Crete. The blue "hydration station" is designed ('ezH2O') to quickly fill water bottles. 70 Landscape Architect and Specifier News

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