Geotextiles in Embankment Dams - Association of State Dam Safety ...

2.03 CRUSHED GRAVELA. In accordance with section 9 [02_] - Gravel.PART 3EXECUTION3.01 SUBGRADE PREPARATIONA. Prepare surface upon which geotextile is to be placed to a firm surface,reasonably even and smooth, and free of offsets, abrupt indentations, andprotruding materials greater than 1-1/2 inches.B.10 [Roll with vibratory roller.]C. Fill low spots with crushed gravel or compacted native material.D. Obtain COR approval of subgrade before installing geotextile.3.02 INSTALLATIONA. Place geotextile in the manner and at locations shown on drawings.B. Lay geotextile smoothly, free of tension, stress, folds, wrinkles, or creasesso far as is practical and except where required in these specifications.C. Shingle overlaps on slopes with upstream roll placed over downstreamroll.1.11 [On slopes steeper than _H:_V, roll out geotextile up or downslope.]D. Pin, staple, or weight to hold geotextile in position. 12 [Do not punctureunderlying geomembrane with anchors.]E. Anchor terminal ends of geotextile with key trenches or aprons at crestand toe of slopes.F. In the presence of wind, weight geotextiles with sandbags or equivalentuntil cover material placed.G. Do not entrap stones, soil, excessive dust, or moisture in geotextile thatcould damage geotextile or hamper subsequent seaming.H. Do not drive or operate equipment directly on geotextile.9 Complete section number.10 Include when very smooth surface required and subgrade is coarse, especially angular, material.11 Include when geotextile required to be placed on relatively steep slope. Insert definition forsteep slope.12 Delete if geomembrane not used on job.