Agreement - US Army Corps of Engineers - Flood Induation Mapper for SB

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APPENDIX A — SCOPE OF STUDY SECTION 22 PLANNING ASSISTANCE TO STATES CITY OF SOUTH BEND 2018 SOUTH BEND FLOOD INUNDATION STUDY FISCAL YEAR 2018 TITLE: 2018 SOUTH BEND INUNDATION STUDY COST SHARING: 50% - FED, 50% - NONFED DATE —OF REQUEST JUSTIFICATION: 20 April 2018 PROJECT SPONSOR: CITY OF SOUTH BEND INDIANA INTRODUCTION: The Saint Joseph River, located in Northern Indiana, has experienced stresses related to development, increased precipitation and concentration of runoff. Damaging flooding in the area has been documented over the last few decades with the top 25 historic crests of the Saint Joseph River in the City of South Bend, IN all occurring since 1980. Most recently, a period of extended above normal precipitation resulted in a flood of record on the St. Joseph River in South Bend, IN in February of 2018. In the wake of the recent flooding, the City of South Bend, IN is requesting that USACE Detroit District prepare the necessary H&H analyses and models required to analyze approximately 8 miles of the Saint Joseph River from just north of the Waste Water Treatment Plant to Logan Street for the purpose of creating a Flood Inundation Mapping Library. These analyses and models are to be reviewed and accepted by the USGS in their Flood Inundation Mapper (FIM) website as part of the City's WIK. PUPR SE- The proposed study will allow the City of South Bend to predict flooding extents within the modeled area based on forecasted stages provided by the National Weather Service during various flood stages. NOTE: Appendix B contains an "Estimated Study Cost" and Appendix C includes a Detailed Scope of Work. DELIVERABLES: Upon completion of the project the City will receive an external hard drive with all the files, reports, and data that are produced for the project. No hard copies of these materials will be produced. The deliverables for specific tasks are discussed in greater detail in Appendix C, but will include a final summary report of hydraulic modeling and inclusion of flood inundation maps for the project area to the FIM online system. A-1