Powerline Plan and Environ. Assessment Jan. 2013 - Flood Control ...

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Powerline Flood Retarding Structure Pinal County, AZ Draft Supplemental Watershed Plan and Environmental Assessment 2.5 REGULATORY CONSIDERATIONS As noted in Section 2.6, ADWR issued a Notice of Safety Deficiency to the Sponsor in February 2009 declaring the dam as “Unsafe, Non-Emergency, Elevated Risk”. The dam currently remains under this designation. USDA- NRCS Page 2-6 January 2013 Kimley-Horn and Associates, Inc.
Powerline Flood Retarding Structure Pinal County, AZ Draft Supplemental Watershed Plan and Environmental Assessment 3.0 SCOPE OF PLAN/EA The scoping process followed the general procedures contained in the Water Resources Council’s Principles and Guidelines and Section 501.35 of the NRCS National Watershed Program Manual. The procedures require that environmental and cultural resources be considered early in the planning process by an interdisciplinary team of technical specialists, in consultation with all interested parties. The scoping process was used during development of the Powerline FRS Supplemental Watershed Plan and Environmental Assessment (Plan/EA) to focus planning efforts on problems and opportunities of most importance to all interested parties. Scoping was utilized to focus the goals of the planning effort and thereby narrow the range of identified alternatives. Comments and questions were solicited from local citizens, groups, and local, State, and Federal agencies throughout the planning effort. Public and/or agency comments were received. Several identified concerns were identified by the Sponsors and project team and are listed in Table 3-1 below. Two public meetings were held during the planning process for the Powerline, Vineyard Road, and Rittenhouse (PVR) Flood Retarding Structures Rehabilitation or Replacement Project. The first meeting was held on November 4, 2010. This purpose of this meeting was to introduce the public to the project location and purpose and need for the project. The second meeting was held on February 1, 2011. The purpose of this meeting was to solicit input from the public regarding planning alternatives for the PVR project. Meeting notices/announcements were published in local newspapers and mailed to several Federal and State agencies. The Sponsor provided a program overview at both public meetings. At the second meeting Kimley-Horn and Associates, Inc. provided an overview of the study alternatives that were developed and presented for public input. Several comments were received by the public at the second public meeting. A third public meeting is scheduled for February 12, 2013 during the public review period. The purpose of this meeting will be to present the preferred alternative as described in this draft Plan/EA and to solicit comments and questions regarding the proposed project. The purpose and need for the project is to provide continued flood protection and to reduce the risk of loss of life due to catastrophic dam failure and flooding. Action is needed to address public health and safety issues surrounding a flood control dam that does not meet existing safety and performance standards for a high hazard potential structure. Table 3-1 Evaluation of Identified Concerns ITEM/CONCERN Relevant to the proposed action? 1/ RATIONALE Yes No SOILS Upland Erosion X No concerns in study area. Stream Bank Erosion X No concerns in study area. USDA- NRCS Page 3-1 January 2013 Kimley-Horn and Associates, Inc.
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POWERLINE FRS TYPICAL SECTION
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Powerline Plan and Environ. Assessment Jan. 2013 - Flood Control ...

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