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<br />k lot z 4~~ ass 0 cia t e 5 <br /> <br />(for new development or redevelopment) above anticipated surge levels; 3) raising of <br />existing building; 4) construction of tide gates at the mouths of channels draining to the <br />bay; 5) requiring new development to have appropriate flood proofing; and 6) property <br />buy-outs of affected homes. However, it is to be recognized that even when tropical <br />storms are the initial cause of flooding, accompanying rainstorms can often induce more <br />flooding than the surge from a tropical storm. The proposed infrastructure in this CWDS <br />is intended to address such severe rainstorm events. <br /> <br />5.2.4 Design Frequencies <br /> <br />Pursuant to City drainage criteria, proposed improvements to primary and major <br />tributaries have been designed for 100-year storm events, depending upon the type of <br />improvement and the drainage area of the proposed improvement. However, storm <br />sewer systems, which are not specifically, except for identifying them as problematic in <br />some areas as addressed in this CWDS, are designed, if City drainage criteria are <br />followed, for the 3-year storm frequency event. Consequently, limited flooding of streets <br />is to be expected for some storm events. In responding to citizen complaints about <br />localized flooding, which can sometimes be relieved by development of sheet flow paths <br />(as is recommended in this CWDS for some areas), it should be borne in mind that City <br />drainage system design are intended to use the City streets for drainage for storm events <br />more severe than a 3-year frequency. <br /> <br />5.2.5 Non-City Funding <br /> <br />Potential funding sources for drainage and flood prevention projects have been <br />previously discussed (see Section 6 in Letter Report No.3). In addition to alternative fee <br />or tax-based methods for generation of additional revenue, the City should consider <br />seeking grants or loans interest lows from either Federal or State sources. Appendix B <br /> <br />5-8 <br /> <br />Klotz Associates Project No. 0127.008.000 <br />January 2009 <br /> <br />La Porte Citywide Drainage Study <br />City of La Porte <br />