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BUILDING, INFRASTRUCTURE AND - 1017 Middlefield Road <br /> TRANSPORTATION DEPARTMENT i o ! wood P.O. Box 391 <br /> �8 Redwood City, CA 94064 <br /> Wank UW Telephone: 650.780.7380 <br /> Facsimile: 650.780.7309 <br /> www.redwoodcity.org <br /> August 12, 2010 <br /> Scapes <br /> Attention: Scott <br /> scott ©scapes.org <br /> RE: Request for Proposal for Levee Vegetation Installation at 1400 Radio Road, <br /> Redwood City, CA <br /> 1 . <br /> Based on experience and qualifications, your firm has been selected to submit a <br /> proposal to install new vegetation along the levee in Redwood Shores. <br /> BACKGROUND INFORMATION <br /> FEMA has revised its standards for levee heights in the San Francisco bay area. <br /> Approximately 1,538 LF of levee separating the Redwood Shores Peninsula and the <br /> South Bay System Authority (SBSA) from the Bay Slough and Steinberger Slough <br /> has been identified for rehabilitation (raising the height of the levee) to meet FEMA <br /> standards. To comply, the City of Redwood City has raised the identified portions of <br /> the levee and installed a new sheet pile retaining wall near SBSA. If perennial <br /> vegetation is not installed, the area near the sheet piles may cause an increase in <br /> California Clapper Rail (CCR) and Salt Marsh Harvest Mouse (SMHM) vulnerability <br /> to predation during extreme high tide. <br /> SCOPE OF WORK <br /> LEVEE VEGETATION <br /> 1. The US Fish and Wildlife Service (USFWS) has mandated that native plants of <br /> suitable height be planted on the levee slope and the four foot area between the <br /> sheet pile and the outboard side of the Levee (see exhibit A). The planting area <br /> covers approximately 920 LF. An approved planting plan is outlined below <br /> Top of Levee (4' Strip from Top of Bank to Sheet Pile Wall) <br /> Typical Mature # Per Clump and <br /> Common Scientific Name Plant Plant Size Spacing /Placement <br /> Name Height/Indicator on Center of Clump - <br /> Status <br /> California Artemisia Large tree band 3 Seedlings per clump <br /> Sage californica 4.9 -8 ft/UPL (2.875"W x 5.5 "D) spaced 4' from center <br /> Lizard Tail Erioph 1.0 -4.9 ftlUPL Large tree band 3 Seedlings per clump <br /> staechadifolium (2.875 "W x 5.5 "D) spaced 4' from center <br /> Common Centromadia .3 -2.9 ft/FAC Seed 25.0 pound/acre <br /> Spikeweed pungens <br /> Saltgrass Distichlis spicata 0.3 -1.6 ft/FACW Seed mix 25.0 pounds /acre <br /> Red Fescue Fesfuca rubra 1.0 -2.6 ft/FAC Seed mix 25.0 pounds /acre <br />