Title
Staff Report for a Resolution to Approve a Consulting Services Agreement with Wood Rodgers, Inc. for the Neptune Drive Flood Protection, Project 2016.0700
Staffreport
SUMMARY AND RECOMMENDATIONS
Staff recommends approval of an agreement with Wood Rodgers, Inc. for design of improvements to reduce risk of flooding near Neptune Drive for $324,725 with maximum change orders up to 20% or $64,945, totaling $389,670.
BACKGROUND
The Federal Emergency Management Agency (FEMA) published revised flood risk maps in 2015 that indicate increased risk of flooding to approximately 1,000 San Leandro properties. This flooding risk is a result of a low spot on the shore of the San Francisco Bay near the intersection of Neptune Drive and Marina Boulevard as well as the height of the levee along the Estudillo Canal.
The Alameda County Flood Control District (ACFCD), which provides flood protection for Alameda County, has initiated a project to modify the levees along the Estudillo Canal so that the canal will protect the adjacent neighborhood from a one hundred year flood.
Analysis
FEMA has not yet adopted the draft flood risk maps published in 2015 and no time line has been confirmed for their adoption. If the shoreline near Neptune Drive remains as it exists today when the maps are adopted, approximately 1,000 properties will be added to the one hundred year flood zone. For these properties, the published risk of flooding will be increased and if residents have federally backed home mortgages for properties in this location, they will be required to obtain flood insurance.
Improvements can be constructed to reduce the risk of flood waters entering the neighborhood and thus revise the flood risk maps. These improvements must be constructed on private property and under permits from the Army Corps of Engineers, San Francisco Bay Conservation and Development Commission (BCDC), and other regulatory agencies. Additionally, FEMA requires hydrology and hydraulics su...
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