Item 16 - Construction Contract with Los Angeles Engineering, Inc. for the Bristol Street

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ENVIRONMENTAL IMPACT REPORT ADDENDUM Bristol Street Widening Phase qIA — Civic Center Drive to Washington Avenue g.) Place housing within a I00 year flood hazard area as mapped on a federal Flood Hazard Boundary or Flood Insurance Rate Map or otherflood load hazard delineation map? The proposed widening would not place any housing within a 100-year flooding zone as mapped by the Federal Emergency Management Agency; therefore, no impact would result from the proposed Project in that regard. Impacts would be similar to those identified in the 1990 FEISIEIR. Mitigation Measures No new additional mitigation measures are required. h.) Place within a 100 year flood hazard area structures which would impede or redirect flood flows? Refer to response in 3.9 (g), above. Impacts would be similar to those identified in the 1990 FEISIEIR. Mitigation Measures No new additional mitigation measures are required. i.) Expose people or structures to a significant risk of loss, injury or death involving flooding, including flooding as a result of the failure of a levee or dam? The proposed Project does not involve the development or placement of any structures, with exception of relocation of utility poles. Therefore, the Project would not expose people or structures to a significant flooding risk beyond that which already exists. No impact would result from the proposed Project. Mitigation Measures No new additional mitigation measures are required. j.) Inundation by seiche, tsunami, or mudflow? The Project site is located approximately 10 miles inland from the Pacific Ocean; therefore, the likelihood of tsunami impacting the site is minimal. The Project site and vicinity are highly urbanized and there is no unusual slope or geologic features in the area. The potential for seiche, tsunami, or mudflow impacting the Project site is less than significant. Impacts would be similar to those identified in the 1990 FEISIEIR. Mitigation Measure No new additional mitigation measures are required. 3.10 Land Use and Planning This section corresponds with Section IV - Environmental Consequences and Mitigation Measures, Subsection A - Landform Modification, of the 1990 FEISIEIR. a.) Physically divide an established community? The proposed Project involves the widening of Bristol Street between Civic Center Drive and Washington Avenue; the proposed widening would not divide an established community. Although the proposed widening of Bristol Street within the Project limits would result in full acquisition of existing properties, ANA 305-011 (PER 02) C17Y OF SANTA ANA (01/19/2015) YU PAGE 46