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SECTION 017300 - EXECUTION <br />Orange County DAA PN: R00592-226N <br />C&D Landfill Phase 2 Construction April 2021 <br /> 017300 - 5/9 <br />E. Record Log: Maintain a log of layout control work. Record deviations from required lines and <br />levels. Include beginning and ending dates and times of surveys, weather conditions, name <br />and duty of each survey party member, and types of instruments and tapes used. Make the log <br />available for reference by Engineer. <br />3.4 FIELD ENGINEERING <br />A. Reference Points: Locate existing permanent benchmarks, control points, and similar reference <br />points before beginning the Work. Preserve and protect permanent benchmarks and control <br />points during construction operations. <br />1. Do not change or relocate existing benchmarks or control points without prior written <br />approval of Engineer. Report lost or destroyed permanent benchmarks or control points <br />promptly. Report the need to relocate permanent benchmarks or control points to <br />Engineer before proceeding. <br />2. Replace lost or destroyed permanent benchmarks and control points promptly. Base <br />replacements on the original survey control points. <br />B. Benchmarks: Establish and maintain a minimum of two permanent benchmarks on Project <br />site, referenced to data established by survey control points. Comply with authorities having <br />jurisdiction for type and size of benchmark. <br />1. Record benchmark locations, with horizontal and vertical data, on Project Record <br />Documents. <br />2. Where the actual location or elevation of layout points cannot be marked, provide <br />temporary reference points sufficient to locate the Work. <br />3. Remove temporary reference points when no longer needed. Restore marked <br />construction to its original condition. <br />C. Certified Survey: On completion of work requiring field-engineering services, or for quantity <br />verification with application for progress payments, prepare a certified survey showing <br />dimensions, locations, angles, and elevations of construction and sitework. <br />D. Final Property Survey: Engage a land surveyor to prepare a final property survey showing <br />significant features (real property) for Project. Include on the survey a certification, signed by <br />land surveyor, that principal metes, bounds, lines, and levels of Project are accurately <br />positioned as shown on the survey. <br />1. Show boundary lines, monuments, streets, site improvements and utilities, existing <br />improvements and significant vegetation, adjoining properties, acreage, grade contours, <br />and the distance and bearing from a site corner to a legal point. <br />2. Recording: At Substantial Completion, have the final property survey recorded by or <br />with authorities having jurisdiction as the official "property survey." <br />3.5 INSTALLATION <br />A. Locate the Work and components of the Work accurately, in correct alignment and elevation, <br />as indicated. <br />DocuSign Envelope ID: 0844D1D6-E311-4FC5-8B5B-BB1E27A908ED