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City of San Leandro <br /> CIA No. D43CIASAL0001 <br />Attachment II, Page 2 of 9 <br /> <br /> <br />(ROW) runoff reaches the TCD through sheet flow off I-880 as it flows from north to south in the <br />westerly direction into a ditch running along the highway which discharges into the ACFCD canal. <br /> <br />Figure 1: Site 14.1 Project Vicinity <br />The site will capture discharges from a tributary area of approximately 344 acres (see Figure 2). <br />The drainage area is split between two jurisdictions: Caltrans and the City of San Leandro. Caltrans <br />tributary area includes discharges from approximately 5.5 acres of I-880 drainage (of which 5.5 <br />acres are STGA). <br />The project involves initial engineering and geotechnical assessments, topographical survey, <br />boundary research, and condition assessment of the concrete channel detailed design, <br />environmental compliance, construction of a widened concrete channel and weir, installation of <br />the TCD, site access improvements, disposal of removed concrete channel sections, and <br />reconstruction of disturbed portions of the site. The City of San Leandro will be responsible for <br />obtaining an environmental permit given the device will be installed in an open channel which is <br />classified as a sensitive landcover type.