![]() The work, once completed must last for decades and every detail of the job is important. They require diligence on the part of all parties to carry out safely and to achieve high quality results. When the offset was welded more pipe was lowered into the excavation in preparation for tie-in. The entire 1,800 foot assembly was then hydrotested for continuity.Īfter the drill a gauge plate was pushed through the pipe, no deformation occurred. Fittings were welded in place to reduce the angle of the pipe and to make the tie-in simpler. Pumps were running continuously as the drill pipe was cut back. This allowed crews to safely work 29' below grade. This excavation required excavation to install engineered shoring. Soil type: compacted hard clay and gravelly clayĪ small 200' section of open cut was made more difficult by the exit angle of the drill.Construction traffic entering and leaving the site had to exercise extreme caution due to the volume of traffic and frequent lane closures and realignments carried out by the highway construction that was ongoing during our project. The two 700' strings were joined and the pull back continued. The reaming operation was somewhat tedious due to heavy clay and frequent clogging of the reamer. With reaming on the 1,400' drill complete the pullback was scheduled and executed without interruption. This string was welded, and coated in preparation for the bore. During this slow down we shifted the welders over to the auger bore which picked up the pipe at a point of intersection and carried it under the arterial roadway. The reaming operation proved to be challenging due to areas of heavy clay clogging the reamer and slowing progress. Welding production was ahead of schedule when the pilot bit emerged precisely on location. The pilot hole proceeded smoothly through gravelly clay material at a depth of over 40 feet. ![]() These two planning documents enable us to avoid utility damage and to respond quickly and professionally to any type of inadvertent release wherever and whenever they may occur. In addition to Utility Damage Prevention Planning, Midwestern Contractors also follows an Inadvertent Release Plan in the event of frac outs during the drilling process. Welding also started up and the 700' string sections began to take shape.Īfter the drill rig was brought the drillers began boring the pilot hole. At the same time our drill string crews mobilized in we began stringing and cribbing pipe. Mats were laid, and all utilities were pot holed, identified and labeled with the depth to the utility. Traffic control measures and signage were put into place. Then the drill path, drill entry and drill exit points were prepped prior to bringing in the drill rig. Our crews helped clear out the laydown yard and offload the pipe. The laydown area was occupied with work on a 90" water main and was cleared out just in time to recieve the 50 sticks of pipe and fittings required for the project. ![]()
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