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<br />k lot z ~~. ass 0 cia t e 5 <br /> <br />flood levels; channel improvements should not be relied upon to allow low floor slab <br />elevations which can only avoid inundation by channel improvements. <br /> <br />4.3.3 Storm Sewerage System Improvements <br /> <br />Future development will be required, by City criteria, to provide adequate drainage for <br />subdivision and similar developments via surface or underground sewer systems. Storm <br />sewer system improvements are consequently not addressed as part of the CWDS for <br />future conditions (other than to say the sewer systems will have to be designed according <br />to City criteria). <br /> <br />4.3.4 Local Ponding Relief Using Sheet Flow Paths <br /> <br />Future development should proceed under the condition, as reinforced by City drainage <br />criteria, that appropriate ponding relief using sheet flow paths be present in the design of <br />new development. Consequently, sheet flow path relief is not addressed as part of the <br />CWDS for future conditions (other than to say that such relief should be incorporated into <br />development design). <br /> <br />4.4 Identified Improvements <br /> <br />Proposed improvements for both existing and future conditions are summarized in Table <br />4-1 for each FEMA primary channel and major tributary channel, while Table 4-2 shows <br />recommended improvements for the non-FEMA primary channel and major tributary <br />channels. The channels for which improvements are proposed are the following: <br /> <br />· A104-00-00 (Existing and Future Conditions) <br />· A 1 04-07 -00 (Existing and Future Conditions) <br />· A104-12-01 (Existing and Future Conditions) <br /> <br />4-12 <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 />