Seattle Public Utilities – Pump Station 43 Emergency Force Main Replacement
Working as a sub-contractor, we completed a 1200 LF bore of 16” HDPE sewer force main beneath the Shilshole Bay waterway just west of the Ballard Locks, utilizing our Universal 250 X 400 and 100 X 110 HDD units. A 42” conductor casing was used due to proximity of railroad tracks at the entry of the bore. With limited works zones, a tight time frame and hefty permit restrictions this was a unique project that offered daily challenges. With the support of an outstanding general contractor and the patience of the surrounding neighbors, the project was successfully completed on schedule.