Current through Register Vol. XLI, No. 50, December 13, 2024
Section 38-14-5 - Performance Standards5.1 Site Preparation 5.1.1 Sediment Control Approved sediment 'control facilities shall be installed prior to clearing and grubbing.
5.1.2 Clearing and Grubbing Clearing and grubbing must be performed in foundation, borrow and soil stockpile areas. Clearing is required in the maximum permanent pool area unless otherwise approved.
5.1.3 Foundation Preparation Preparation shall include installation of keyways and subdrains, removal of soft areas and similar site preparation operations dictated by the approved plan and site conditions. The foundation shall be inspected by the Director prior to placement of embankment materials.
5.2 Construction 5.2.1 Placement of Materials 5.2.1.1 All fill must be placed in accordance with the approved plans and specifications for the particular site.5.2.1.2 Compaction testing shall be done as dictated by design requirements and reported according to Sections 7.1 and 7.2.5.2.1.3 Drainage blankets, etc., shall be constructed in accordance with the approved plan. Filter material shall be tested for compliance with design gradations and results submitted according to Sections 7.1 and 7.2. Drainage materials shall be placed in such a way as to prevent segregation and contamination. Concurrent covering of drainage facilities shall be done to prevent contamination or damage.5.2.1.4 Grading 5.2.1.4.1 The working surface and outslopes of the fill shall be concurrently graded through all phases of embankment construction.5.2.1.4.2 The top of the fill shall be crowned to provide positive drainage during construction,5.2.1.4.3 In all cases final grading shall be conducted in such a manner as to follow approved plans and to provide a surface for vegetation.5.2.1.4.4 Erosion control measures shall be implemented during construction to prevent excessive erosion.5.2.2 Spillways and Appurtenances5.2.2.1 Spillways and appurtenances shall be constructed according to the approved plans and specifications. Any changes and/or modifications must be approved by the Director of the Division of Oil and Gas of the Department of Energy prior to implementation.5.2.2.2 When downslope placement of fill material is used in the construction of spillways, the fill material shall be compacted in horizontal layers to achieve the design configuration,5.2.2.3 All rip-rap material shall be of hard, durable rock which is not acid-forming or toxic. Rip-rap shall be placed to prevent size segregation,5.2.2.4 When bedding is used under rip-rap-the rock material shall be placed in a manner so as not to damage or contaminate the bedding.5.2.2.5 When protective channel linings are required, the linings shall be installed as soon as the channel is constructed to grade according to the approved plans.5.2.2.6 When concrete is used in construction of spillways and appurtenances, standard forming or placement techniques shall be used where necessary. The concrete shall be placed and cured in accordance with accepted engineering standards. Standard engineering tests shall be performed to insure that the concrete meets the design specifications and shall be reported in accordance with Sections 7.1 and 7.2.5.2.2.7 All pipes, risers, and appurtenances shall be installed according to the approved plans. Sufficient compaction testing shall be performed and reported according to Sections 7.1 and 7.2 to insure that fill material around pipes and appurtenances has been placed according to the approved plan. Sufficient fill shall be placed over pipes to prevent damage by heavy equipment.5.3 Operation and Maintenance 5.3.1 All spillways and appurtenances shall be maintained to operate according to the design plans and specifications .5.3.2 Routine maintenance of spillways shall be performed. Maintenance shall include removal of sediment, brush, trees, rocks, rocks in stilling basins, and re-establishment of the structure to its original hydraulic design.5.3.3 All failures resulting from landslides or slope failures must be corrected immediately if they significantly affect the safety or design capacity of the dam or its appurtenances. Failures must be reported to the Director of the Division of Oil and Gas of the Department of Energy.5.3.4 Routine inspections shall be made of all hydraulic structures to insure proper operation. Special inspections shall be conducted whenever a significant flow through the structures has occurred.5.3.5 All pipes must be repaired or replaced when damaged, distorted, or otherwise fail to function properly according to the approved design.5.3.6 Leakage through joints, fissures, cracks through or under the spillway channel shall be immediately investigated and repaired.5.3.7 If erosion on the embankment face or abutments occurs, the area must be regraded and be provided with adequate drainage control and/or revegetation to prevent future occurrences.5.3.8 All gates must be serviced and operated at least annually to insure proper functioning.5.3.9 All concrete structures and channel listings must be maintained according to design-and specifications.5.3.10 Access roads must be maintained to insure access for emergency inspections.5.3.11 The embankment shall be kept clear of trees and shrubs.5.3.12 The embankment shall be kept clear of burrowing animals.5.3.13 All monitoring devices shall be routinely inspected and repaired or replaced as necessary to insure proper functioning of the devices.