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- ------ ------ - ---------- <br />5101.2- Borrow areas. shall be located at least 200 feet from either toe `of the dam The <br />dimension of this limit may be reduced using engineering .analyses indicating that the <br />reduced dimension. will not negatively impact dam stability and/or `foundation seepage <br />5.10.1.3 The dam crest and appurtenant structures shall be accessible by equipment and <br />vehicles for emergency operations and maintenance. <br />5.10.1.4 The dam owner shall possess title to the property, or a permanent easement, <br />including permanent access, for a minimum distance of fifty feet or the height of the dam, <br />whichever is greater, downstream from the downstream toe of the dam for the purpose of <br />maintenance and the removal of trees and large vegetation along the downstream toe of <br />the dam. <br />5.10.1.5 Pipelines, utility lines or any other construction that penetrate through dam <br />abutment areas below the dam crest elevation, or that are within a distance of 50 feet or <br />the height of the dam, whichever is greater, from either toe of the dam shall not be <br />allowed without prior written approval by the State Engineer. To be considered for <br />approval, such penetrations must be designed to protect against seepage and piping <br />through trench backfill materials and avoid temporary or permanent impacts to dam <br />stability, and must be documented with as-constructed survey data and installation details <br />submitted to the State Engineer. <br />5.10.1.6 The design of a new reservoir or enlargement of an existing dam and reservoir <br />shall not result in the inundation of properties (except marina-type structures) during the <br />Inflow Design Flood (IDF) unless the dam owner owns or obtains flood right-of-ways for <br />all areas which may be inundated by the reservoir surcharge. The owner shall submit a <br />written statement certifying they own the properties, or own the right-of-way on all <br />affected properties, or possess a right-of-way easement for the reservoir inundation zone. <br />5.10.1.7 Flood easements for spillway discharges shall meet the requirements of <br />Rule 5.9.6.1.1. <br />5.10.2 River Diversion During Construction Requirements <br />v <br />5.10.2.1 A water diversion plan to control surface water during construction meeting the <br />requirements of Rule 9 may be developed by the construction contractor based on <br />information and requirements provided by the Engineer, or the Engineer may prepare <br />these plans. <br />5.10.2.2 In developing the requirements of the plan during the project design, the design <br />storm for the construction period, including the estimated volume or flow rate that must <br />be managed during construction should be clearly specified in the Design Report. <br />5.10.2.3 The contractor may be allowed flexibility to develop the methods and means to <br />divert the water in coordination with other aspects of the construction. <br />36