Laserfiche WebLink
• Emergency Spillway. The emergency spillway shall be constructed in accordance <br />with the lines, grades, and sections shown on the plans. The channel shall be trapazoidal <br />with a minimum bottom width of 8 feet and 2H:1V side slopes. Gabion baskets shall be <br />placed on both the bottom and sides of the spillway. <br />Principal Spillway. The principal spillway shall be constructed and assembled in <br />accordance with plans and at the elevation and location shown on the drawings. The <br />spillway shall include a riser, antiseep collars and trash rack. <br />Embankment Construction. Prior to placing any embankment material, the <br />foundation surface shall be scarified to a depth of at least 6 inches and recompacted per <br />the compaction specifications. All fill materials shall be obtained from the designated <br />borrow areas. The fill shall be constructed so that the distribution of materials <br />throughout the embankment will be essentially homogeneous and free from lenses, pocket, <br />streaks or layers of material differing substantially in texture or gradiation from the <br />surrounding material. Embankment fill shall be placed in approximately horizontal layers <br />extending the entire width of the embankment. A 2 percent cross slope toward the pond <br />• shall maintained during construction. The thickness of each layer shall not be more than 8 <br />inches. <br />Compaction. At the time of compaction, moisture content of the embankment <br />materials shall be such that the specified compaction will be obtained. The materials <br />shall be dried or moistened uniformly as necessary to bring the moisture content to near <br />optimium. All fill placed in the embankment shall be compacted to at least 90 percent of <br />maximum density at optimium moisture as defined by the modified proctor. Compaction <br />equipment shall traverse the entire surface of each layer of material the number times <br />required to accomplish the specified compaction. <br />Testin During the course of work, density tests shall be made in accordance with <br />the following minimum schedule: Once every 2,000 yards or once every lift. Fill placed <br />at densities Jower than that specified or otherwise not conforming to the requirements of <br />this specification shall be reworked to meet the compaction requirements or removed and <br />replaced with acceptable fill. <br /> <br />-6- <br /> <br />