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PSA - Technical Assistance for South Bend Dam 20202 DSSMR and On-Going FERC Complia – Christopher B. Burke Engineering, LLC
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PSA - Technical Assistance for South Bend Dam 20202 DSSMR and On-Going FERC Complia – Christopher B. Burke Engineering, LLC
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Board of Public Works
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2021 South Bend Dam Technical Assistance January 4, 2021 <br />Attachment A Page 1 <br />Christopher B. Burke Engineering, LLC <br />220 West Colfax Avenue Suite 500 South Bend, IN 46601 574.282.8001 cbbel-in.com <br />ATTACHMENT A <br />The South Bend Dam (License No. 7569) is a low-head, run-of-the-river dam on the St. Joseph River near <br />downtown South Bend. The Federal Energy Regulatory Commission (FERC) requires that a Dam Safety <br />Surveillance and Monitoring Report (DSSMR) be completed annually to review instrumentation and <br />monitoring data to determine if potential failure modes are developing. It is our understanding that the City of <br />South Bend (City) is interested in having Burke complete the 2020 DSSMR (covering the 2020 calendar year) <br />and other tasks related to ongoing FERC compliance in 2021. <br />The scope of work will include the following tasks: <br />Task 1 – 2020 DSSMR Report: Burke will review pertinent information regarding the dam necessary to <br />complete the DSSMR which may include previous DSSMR reports and other information contained in either <br />the City’s or IDNR’s file for the dam. It is expected that the City will provide the data from the last year for <br />the two staff gages located along the East Race. <br />Burke will prepare a brief written DSSMR in accordance with FERC guidance outlined in Chapter 14 of <br />Engineering Guidelines for the Evaluation of Hydropower Projects. The report will be completed based on observations <br />made by Burke in 2020. The level of detail and content of the report is expected to be similar to the 2019 <br />DSSMR prepared by Burke. The report will be submitted to the City in draft format before finalizing. It is <br />expected that the University of Notre Dame (license exemption holder) or its consultants will file the report <br />with FERC. <br />Task 2 – 2021 Annual Inspection: In preparation for the 2021 DSSMR and to fulfill the annual visual <br />inspection requirement, a Burke registered professional engineer will perform visual observations of safely- <br />accessible portions of the dam and appurtenant structures. Since the South Bend Dam is an in-channel <br />structure, much of the dam and its appurtenances are not readily accessible for visual observation. Burke’s <br />observations will be focused on potential dam safety concerns and to make a determination if the dam appears <br />safe for continued operation. This scope of work specifically excludes preparation of the 2021 DSSMR report. <br />It is expected that the annual inspection will occur on the same date as the gate operation certification. <br />Task 3 – Update DSSMP: In accordance with a letter from FERC dated July 21, 2020, Burke will update the <br />Dam Safety Surveillance and Monitoring Plan (DSSMP) for the South Bend Dam. Updates are expected to <br />include incorporation of new staff gages and minor clarifications and edits requested by FERC. The updated <br />DSSMP will be submitted to the City in draft format before finalizing. It is expected that the University of <br />Notre Dame or its consultants will file the report with FERC concurrently with the 2020 DSSMR. <br />Task 4 – Gate Operation Certification: The Spillway Gate Operation Certificate must be completed each <br />year. Burke staff will observe operation of the three East Race gates by City staff and will assist in preparation <br />of the certificate to submit to FERC. Burke will prepare a cover letter to accompany the certificate and will <br />send to the University of Notre Dame or its consultants for submittal to FERC.
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