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7.3.B. - Page 5 <br /> creates extensive grass and brushland fire risk. With residential developments <br /> encroaching into these wooded and grass, or brush-covered areas, wind and <br /> terrain-driven fires could have severe consequences to improved properties at risk. <br /> This has been demonstrated on several occasions in other areas of our State <br /> Fire/Rescue Aid Regions. <br /> 4. Geological: <br /> A. Geographic Location. The area served by the City is located in San Mateo <br /> County. This area identified as being in the southern region of the county. <br /> B. Seismic Location. The relatively young geological processes that have created <br /> the San Francisco bay region are still active today. Seismically, the City sits <br /> along the active San Andreas Fault, and is rated as a Seismic Zone E. <br /> C. Size and population. Areas served by the Fire Department encompass <br /> approximately 19 square miles and 80,000 people. <br /> D. Roads and Streets. The number of vehicle miles driven is steadily increasing <br /> despite limited growth. Many older streets are narrow and steep. The impact of <br /> additional planned developments and increased traffic flow will continue to <br /> create an effect on the delivery of fire protection services. <br /> E. Soil Conditions. The City of Redwood City lay's in the southern end of San <br /> Mateo County. The areas closest to the Bay are overlain by unconsolidated <br /> fine silty clay, known as Bay Mud, which varies in thickness from a few feet to <br /> as much as thirty (30) feet. Bedrock lies beneath the area at depths generally <br /> three hundred (300) feet or more. The topography is essentially flat, dropping <br /> from an elevation of eight hundred (800) feet to sea level. The slope of the city <br /> extends upwards on the western side. Slopes range from (0) degrees to more <br /> than (20) degrees on some streets. <br /> F. Vegetation. The hilly portion of the City of Redwood City contains trees, dense <br /> brush vegetation and a heavy growth of natural grasses. The City and <br /> surrounding areas suffer several wildland fires each year. <br /> G. Younger Bay Mud. Within the City, specifically along the San Francisco Bay, is <br /> underlain with Younger Bay Mud, which does not allow for infrastructure subject <br /> to corrosion. <br /> 5. Topographical: The topographical element, as would be expected, is closely <br /> associated with the geological element. With elevation changes in the City, <br /> development is of a geological concern. With these changes development is, of <br /> course, following the path of least resistance; thereby creating a meandering <br /> pattern. This does not lend itself to a good systematic street and road layout, which <br /> would promote easy traffic flow. It has, in fact, resulted in few major cross-town <br /> thoroughfares, which tend to be heavily congested, primarily during commute <br /> hours and seasonal periods of the year. "Pass-through" vehicular traffic in the <br /> cities, such as the areas of the Alameda de Las Pulgas, Woodside Road, <br /> Edgewood Road, and El Camino Real. This increased commute time increases <br /> traffic for eastbound and westbound vehicular movement to US 101 and Interstate <br /> ATTY/RESO.3084/CC RESO AMENDING BUILDING CODE FINDINGS <br /> REV:05-05-15 VR <br /> Page 3 of 5 <br />