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<br />k lot z .~. ass 0 cia t e s <br /> <br />Letter Report No.1, dated March 10, 2008, collected and assembled key data (Tasks 1.1 <br />and 1.4 of scope), generally described the watersheds and drainage system in the City <br />using various techniques and data including LiDAR data (Task 1.2), and conducted and <br />documented site visits (Tasks 1.3). Key drainage reports developed prior to the present <br />study were also summarized (Task 1.6). In addition, the assembled data was used to <br />assess and provide a preliminary identification of apparent critical existing drainage <br />problems (Task 1.5). This assessment led to identification of short term solutions (Task <br />2.3) which were communicated to the City Council and Flooding and Drainage <br />Committee (Task 2.4). <br /> <br />As part of the data gathering activities documented in Letter Report No.1, available and <br />previous prepared hydrologic and hydraulic data and models for various bayous in the <br />City were obtained (Task 2.1). Review and update of the models continued though <br />preparation of Letter Report No.2 and Letter Report No.3 (Task 2.5). Modeling was <br />assisted with limited survey for selected bayous (Tasks 2.6 and 3.1) so that models and <br />identification of drainage and flooding problems could be refined for both existing and <br />estimated future conditions (Task 2.5). <br /> <br />Letter Report No. 2 provided a description of flooding conditions (Task 2.2) and <br />provided a detailed description of the available hydraulic models (Task 2.5), while update <br />of the models continued. Letter Report No.2 also provided additional characterization of <br />critical drainage problems and refined improvements for addressing short term drainage <br />problems. Letter Report No.3 completed the development of hydraulic models for the <br />various bayous in the City being studied. A report on key aspects of the findings <br />documented by Letter Report 2 was presented to the City Council and Flooding and <br />Drainage Committee (Task 2.4). <br /> <br />Letter Report No.3 examined drainage design criteria and standards (Task 4.1) and made <br />recommendations for modifications to the City's criteria. Long term drainage problems <br /> <br />1-2 <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 />