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Attachment A- Scope of Services <br />Guadalupe River <br />Flood Protection Planning Study Phase 2 <br />The Guadalupe Watershed Flood Protection Planning Study Phase 2 (see <br />attached Phase 2 basin -wide map) shall continue the development of a <br />comprehensive regional analysis of the Guadalupe River below Canyon Dam, <br />including the Blanco and San Marcos Rivers focusing on certain tributaries within <br />each participating community (see the attached community map) as agreed. The <br />goals of the study are: (1) establish baseline flooding conditions, (2) accurately <br />identify flood -prone areas, (3) develop and evaluate flood protection alternative <br />solutions, and (3) provide a recommendation for project implementation. In <br />addition, the study will include estimates of the existing average annual flood <br />damages being incurred within the study area. The flood protection planning <br />study will be performed according to criteria established by the Texas Water <br />Development Board (TWDB) and the U.S. Army Corps of Engineers (USACE). <br />The study will be performed by the USACE, GBRA, and their contractors. <br />Following is a detailed scope of services to be performed: <br />Work Tasks: <br />1) Collection of Baseline Information — The USACE, GBRA, and their <br />contractors will utilize existing studies as required for incorporation into the <br />countywide database. These include identified flood -prone areas based on <br />citizen input and local community records, available GIS datasets, current and <br />future land use maps, soil maps, cultural resource maps and materials, <br />environmental resource maps and materials, topography, digital <br />orthophotography, cross - section data, existing models, and previous drainage <br />and engineering studies. Similar information will be developed for each <br />watershed in the study areas. <br />2) Environmental Constraints — The project includes consideration of various <br />environmental constraints related to the evaluation of project alternatives and <br />the selection of the recommended plan. This will involve a review of critical <br />environmental features (CEF). This task will utilize existing available <br />information from sources such as the Edward's Aquifer Recharge <br />Implementation Project (EARIP), locally collected environmental data, state <br />and national environmental databases as well as research to identify other <br />CEFs that need to be considered during the development of improvement <br />scenarios. <br />3) Review and Identification of Flood and Drainage Problem Areas —This phase <br />will identify flood -prone areas based on citizen input and city and county <br />records. The team will acquire assemble and review available GIS datasets, <br />LIDAR topography, digital orthophotography, cross - section data, existing <br />FEMA models, and previous drainage and engineering studies. Extensive <br />