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B. Earthwork quantities shall be considered as in-place material with no shrinkage or <br />expansion factors. <br />C. Subsoil Excavation - Any excavation below the proposed bottom elevation of the select <br />fill, isolated swale bottom locations, isolated locations for pipe installations and as <br />approved by the engineer shall be paid for as subsoil excavation. Approximately 2.0 ft <br />of subsoil excavation is required in sublateral canals. Cost of replacement <br />embankment shall be included in cost of subsoil excavation. Contractor shall <br />coordinate with county representative prior to any subsoil excavation. <br />D. Embankment - General Requirements for Embankment Materials: The following is <br />added after the first paragraph of Subarticle 120-7.2: <br />Roadway Design Standard Index No. 505, Embankment Utilization Details is modified <br />by the addition of the following: <br />Any stratum or stockpile or soil which contains obvious pockets of highly organic <br />material may be designated as muck or unsuitable for construction of subgrade by the <br />Owner. <br />Backfill material containing more than 2.0% by weight of organic material, as <br />determined by FM 1-T 267 and by averaging the test results for three randomly <br />selected samples from each stratum or stockpile of a particular material, shall not be <br />used in construction of the reinforced volume. If an individual test value of the three <br />samples exceeds 3.0%, the stratum or stockpile will not be suitable for construction of <br />the reinforced volume. <br />No A-8 material permitted in embankment. <br />E. Payment shall be made under: <br />Bid Item No. 120-1 — Excavation, Regular (Roadway)— Per Cubic Yard <br />Bid Item No. 120-6 - Embankment (Compacted in Place) - Per Cubic Yard <br />SECTION -160 STABILIZATION <br />A. Section 160 is modified by the addition of the following: <br />"The stabilization thickness indicated on plans shall be considered a minimum thickness. <br />Thickness will vary to conform to the lines, and grades shown in the plans." Minimum L.B.R. <br />= 40 - No under -tolerance. <br />B. Payment shall be made under: <br />Bid Item No. 160-4-1 - Type B Stabilization LBR40 (12") - Per Square Yard <br />01025-25 Technical Specifications <br />F:\Public Works\ENGINEERING DIVISION PROJECTS\0530B 13th Street SW at 58th Ave Bridge\Admin\bid documents\Master <br />Contract Documents\Technical Specifications.doc <br />