PSA - Preparation of 2020 Dam Safety Surveillance and Monitoring Report for FERC- Christopher B. Burke Engineering, LLC

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B1JRKE Christopher B. Burke Engineering, LLC 220 West Colfax Avenue Suite 500 South Bend, IN 46601 574.282.8001 cbbel-in.com ATTACHMENT A The South Bend Dam (License No. 7569) is a low -head, run -of -the -river dam on the St. Joseph River near downtown South Bend. The Federal Energy Regulatory Commission (FERC) requires that a Dam Safety Surveillance and Monitoring Report (DSSMR) be completed annually to review instrumentation and monitoring data to determine if potential failure modes are developing. It is our understanding that the City of South Bend is interested in having Burke complete the 2020 DSSMR. The scope of work will include the following tasks: Task 1— Data Gathering and Review: Burke will review pertinent information regarding the dam necessary to complete the DSSMR which may include previous DSSMR reports and other information contained in either the City's or IDNR's file for the dam. At a minimum, it is expected that the City will provide the following to Burke: 1. Dam Safety Surveillance and Monitoring Plan (DSSMP) for the South Bend Dam 2. Potential Failure Mode Analysis (PFMA) documentation 3. Data from the last year for the two staff gages located along the East Race Task 2 — Evaluation of Upstream and Downstream Conditions: Burke will perform a cursory desktop and visual evaluation to determine if there have been observable changes in upstream or downstream conditions that may affect the determination that no reasonably foreseeable emergency at the dam would endanger life, health or property. This evaluation is expected to include a review of publicly -available aerial photography and observations at the site only and specifically excludes dam failure flood inundation mapping. It is our understanding that this evaluation is required to maintain an exemption from filing an emergency action plan. Task 3 — Site Observation: Burke will perform visual observations of safely accessible portions of the dam and appurtenant structures. Since the South Bend Dam is an in -channel structure, much of the dam and its appurtenances are not readily accessible for visual observation. Burke's observations will be focused on potential dam safety concerns and to make a determination if the dam appears safe for continued operation. Site work specifically excludes an underwater inspection since it is on a 10-year schedule and was completed in 2017. This task also specifically excludes a bathymetric survey. Task 4 — Report Writing: Burke will prepare a brief written DSSMR in accordance with FERC guidance outlined in Chapter 14 of Engineering Guideknes for the Evaluation of Hydropoiver Projects. The level of detail and content of the report is expected to be similar to the 2019 DSSMR. Task 5 — Project Management and Administration: This task is associated with management and administration of the project throughout its duration. Burke expects one meeting with City staff after completion of the DSSMR to discuss findings.