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10 <br /> Lake Orange - Dam Rehabilitation <br /> Project Category County Project Status: New Project Type <br /> Functional Service Area: Community Services Proposed Bid Date: TBD New <br /> Department: Planning and Starting Date: 7/1/2019 Expansion <br /> Inspections Completion Date: 6/30/2025 Renovation x <br /> Project Number: 10074 Replacement <br /> Project Description/Justification: <br /> Lake Orange is a Class II (WS-II) public water supply reservoir owned by — F <br /> Orange County. The lake was created in 1968 via the construction of an <br /> earthen dam and concrete spillway across the east fork of the Eno River. � "'• <br /> The lake's primary uses are public water supply as designated by North <br /> Carolina Department of Environmental Quality (NCDEQ) and maintenance <br /> of minimum (dry weather)flows in the Eno River, as defined within the Eno <br /> River Water Management Plan (a.k.a. the Eno River Capacity Use <br /> Agreement). The Lake Orange dam was classified by NCDEQ as a "High <br /> Hazard" dam in August 2011 which means that failure of the dam could <br /> result in severe property damage and/or possible loss of life downstream. <br /> In Fall 2018, NCDEQ and a private engineering firm conducted dam <br /> inspections that identified numerous deficiencies, due to the age of this <br /> 52-year old structure. This project would represent a multi-year approach <br /> to repair these deficiencies, by continuing to address high priority needs in <br /> FY2021-22. The FY2021-22 proposal is to repair the existing erosion <br /> control barrier and the associated materials testing for a total request of <br /> $360,000. <br /> In Fall 2020, Orange County conducted additional inspections of the <br /> concrete spillway channel and intake tower as part of the data collection <br /> efforts related to existing professional engineering design contracts with <br /> two (2) separate qualified engineering firms. Detailed inspections revealed <br /> additional (previously unknown) structural deficiencies within the existing <br /> intake tower and along the concrete spillway channel. The FY2021-26 CIP <br /> has been completely re-assessed and re-prioritized from previous years, so <br /> as to address the most critical known structural deficiencies. <br /> FINANCIAL SUMMARY <br /> Current Year 1 Year 2 Year 3 Year 4 Year 5 Five Year 6 <br /> Prior Years Fiscal Year Fiscal Year Fiscal Year Fiscal Year Fiscal Year Fiscal Year Year to <br /> Project Budget Funding 2020-21 2021-22 2022-23 2023-24 2024-25 2025-26 Total Year 10 <br /> Appropriation <br /> Professional Services <br /> CEI-EC Barrier Replacement 20,000 20,000 <br /> CEI-Gate/Actuator Replacement 20,000 20,000 <br /> CEI-Intake Tower Point Repairs 10,000 10,000 <br /> CEI-Spillway Channel Point Repairs 10,000 10,000 <br /> Engineering Design-Priority Projects 90,000 <br /> Replacement of Concrete Spillway <br /> Channel <br /> 370,000 <br /> Construction/Repairs/Renovations <br /> 38 <br />