Laserfiche WebLink
pressure rating. The lower end of the pipeline is connected to an existing section of 16- <br />inch HDPE pipe in the PT that in turn connects to three submersible pumps that hang in <br />#5 Shaft. The pumps already existed, and were not part of this project. The 24-inch <br />HDPE pipeline is buried with approximately 6 to 7 feet of cover, from the ground surface <br />to the top of the pipe. To provide location assistance for any future work, an insulated <br />12 G copper wire was taped to the top of the 24-inch HDPE pipe prior to burial. This <br />wire surtaces at the cleanouts and new Discharge Vault. <br />There were several areas along the proposed _pipeline route that required <br />preparation before the pipeline could be installed. Most of the work required involved <br />the removal of old concrete foundations that were in the pipeline route. Some old <br />wooden cribbing also had to be removed along the old conveyor bench. In addition,.a <br />new ramp had tq,be constructed between existing benches to allow equipment access <br />along the pipeline route. Also, several large boulders were found at various locations <br />along the pipeline route. These were removed where possible. Some boulders were too <br />large to be removed. In these cases, a large hole was excavated near the boulder; and <br />the boulder was rolled into the hole and covered with soil. Most of this work occurred in <br />' ~ the general area of Storke Portal. - <br />' The Storke pipeline was-installed beginning at the Discharge Vault and wocking_.._. <br />back towards the PT. The majority of the pipeline is installed along an existing bench <br />that parallels the highway. There are a total of four cleanout tees/manholes_locatgd <br />along the pipeline route at approximately 900-feet intervals. The pipeline was fused <br />together to form long (approximately 800 to 900 feet) sections between -the cleanout <br />' tees. These sections were then pulled into place using a bulldozer. The cleanout tees <br />are flanged at each end, and the pipeline sections had flanges on the ends where they <br />' connected to the cleanouts and end connections. <br />' While the pipe was being fused, the pipe french was being excavated. Pipe <br />bedding material was placed in the trench bottom, and the appropriate pipe section slid <br />' into place. More bedding material was added to the pipe sides and top and compacted <br />5 <br />