Laserfiche WebLink
s • <br />3.3 Fill Placement and Embankment Placement <br />The fill material shall be placed in continuous, horizontal layers. Generally, not more <br />than 9-inch loose lifts will be placed, spread, moisture conditioned and compacted to <br />achieve the required density requirements. The soil liner fill will be placed and <br />compacted such that the permeability of the fill material is less than 1X10 cm/sec. <br />In the event that the Engineer determines the layer surface is too dry or smooth to <br />properly bond with the next layer, the surface will be scarified to a depth of 2 inches and <br />moistened in order to properly bond with the next succeeding layer of lift. Scarification <br />may be achieved with the discing or raking with a grader. If the Engineer determines <br />that the layer surface is too wet for the next layer, this layer will be reworked and allowed <br />to dry, or worked with a harrow, scarifier or suitable equipment to achieve the proper <br />moisture content. This layer will then be recompacted prior to the next succeeding layer <br />of lift. <br />The embankment materials, and their suitability, will be determined by the specifications <br />for construction, or as designated acceptable by the Engineer. The embankment <br />material will not be placed in a fill area when either the material or embankment is <br />frozen. The embankment will not contain brush, roots, sod, organic or unsuitable <br />material. <br />The fiN surface will be kept at approximately the same level at all times during <br />construction, with a maximum difference in elevation between fill surfaces of three feet. <br />The surface of the fill will be graded to prevent water detention and maintained to <br />promote storm water drainage. Each layer of fill and embankment material will be <br />placed such that the material composition will be sufficient to secure the best practicable <br />degree of moisture, compaction and stability. These layers will be distributed such that <br />the fill is free from voids, lenses, pockets, streaks, or layers of material that are not <br />consistent with the texture or grade of surrounding material. Desiccation and crusting of <br />the layer surface will be avoided to the greatest extent possible. Unsuitable material will <br />be removed and dried after inclement weather has occurred and affected the fill and <br />embankment material. <br />