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D. Do not remove wet subsoil, unless it is subsequently processed to obtain optimum moisture content. <br />E. Stability: Replace damaged or displaced subsoil to same requirements as for specified fill. <br />3.04 SOIL REMOVAL <br />A. Stockpile excavated topsoil on site before grading. <br />B. Maintain areas in a well drained condition at all times. <br />C. Excavate to the grades as shown on the restoration plan and directed by the Engineer. <br />3.05 PLACING EMBANKMENTS <br />A. Deposit and spread in uniform layers in 12 inch lifts. <br />B. Maintain optimum moisture content. <br />C. Compact to 100% of Standard proctor density. <br />D. Do not place frozen material. <br />3.06 FINISH GRADING <br />A. Before Finish Grading: <br />1. Verify building and trench backfilling have been inspected. <br />2. Verify subgrade has been contoured and compacted. <br />B. Remove debris, roots, branches, stones, in excess of 3 inch in size. Remove contaminated soil. <br />C. Where topsoil is to be placed, scarify surface to depth of 3 inches. <br />D. In areas where vehicles or equipment have compacted soil, scarify surface to depth of 6 inches. <br />3.07 TOLERANCES <br />A. Top Surface of Subgrade: Plus or minus 0.1 foot from required elevation. <br />B. Top Surface of Finish Grade: Plus or minus 0.1 foot. <br />3.08 CLEANING AND PROTECTION <br />A. Leave site clean and raked, ready to receive landscaping. <br />3.09 METHOD OF MEASUREMENT <br />A. The Owner will measure Common Excavation by Plan Quantity (P) as defined in MnDOT Specification 1901 <br />"Measurement of Quantities". <br />Division 31— Earthwork <br />DV31-2 <br />