Stormwater Design Guidelines

SAN FRANCISCO, CA

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Lotus Water led the engineering effort to develop multiple components of the SFPUC’s Stormwater Design Guidelines, which detail stormwater management requirements for redevelopment projects in San Francisco’s combined and separate storm sewer systems. Lotus evaluated the impact that various stormwater performance measures, including LEED criteria, will have on the effectiveness of the City’s collection system. Lotus then developed the BMP fact sheets, sizing methodology and calculator tools to assist developers in designing LID measures that comply with the new requirements. Through this effort, Lotus developed recommended stormwater performance measures for the City, including alternative compliance criteria for constrained sites (e.g., reduced stormwater retention requirements at sites with limited infiltration and rainwater harvesting feasibility).

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Baker Beach Green Streets

san francisco

The Baker Beach project implements bioretention, infiltration galleries, and permeable pavement along a half mile of El Camino del Mar, Sea Cliff Avenue, and 25th Avenue North in the Sea Cliff neighborhood. The El Camino Del Mar project area consists of multi-functional green infrastructure nodes at three existing golf course path crossings and adds a new crossing and node in front of the Lands End Trailhead.