Laserfiche WebLink
GENERAL EARTHWORK AND GRADING GUIDELINES <br />General <br />These guidelines present general procedures and requirements for earthwork and grading <br />as shown on the approved grading plans, including preparation of areas to filled, <br />placement of fill, installation of subdrains, and excavations. The recommendations <br />contained in the geotechnical report are part of the earthwork and grading guidelines and <br />would supercede the provisions contained hereafter in the case of conflict. Evaluations <br />performed by the consultant during the course of grading may result in new or revised <br />recommendations which could supercede these guidelines or the recommendations <br />contained in the geotechnical report. <br />The contractor is responsible for the satisfactory completion of all earthwork in accordance <br />with provisions of the project plans and specifications. The project soil engineer and <br />engineering geologist (geotechnical consultant), or their representatives, should provide <br />observation and testing services, and geotechnical consultation during the duration of the <br />project. <br />EARTHWORK OBSERVATIONS AND TESTING <br />Geotechnical Consultant <br />Prior to the commencement of grading, a qualified geotechnical consultant (soil engineer <br />and engineering geologist) should be employed for the purpose of observing earthwork <br />procedures and testing the fills for general conformance with the recommendations of the <br />geotechnical report, the approved grading plans, and applicable grading codes and <br />ordinances. <br />The geotechnical consultant should provide testing and observation so that determination <br />may be made that the work is being accomplished as specified. It is the responsibility of <br />the contractor to assist the consultants and keep them apprised of anticipated work <br />schedules and changes, so that they may schedule their personnel accordingly. <br />All remedial removals, clean-outs, prepared ground to receive fill, key excavations, and <br />subdrain installation should be observed and documented by the project engineering <br />geologist and/or soil engineer prior to placing and fill. It is the contractor's responsibility <br />to notify the engineering geologist and soil engineer when such areas are ready for <br />observation. <br />Laboratorv and Field Tests <br />Maximum dry density tests to determine the degree of compaction should be performed <br />in accordance with American Standard Testing Materials test method ASTM designation <br />D-1557. Random or representative field compaction tests should be performed in <br />accordance with test methods ASTM designation D-1556, D-2937 or D-2922, and D-3017, <br />at intervals of approximately *2 feet of fill height or approximately every 1,000 cubic yards