Industrial Drive Substation 35kV URD Feeder Exits
The project consisted of the adding (3) three phase 35kV underground feeders exits from the Industrial Drive substation near the Houston Ship Channel, to improve reliability and relieve load on the existing underground system. The project utilized 1000mcm copper conductor in nine 6” conduits in a duct bank exiting from three new substation feeder breakers. From the station exit, a new manhole/vault was installed, all three circuits then crossed to the west and under Industrial Drive via a hand-dug box tunnel, due to poor soil conditions, a second manhole/vault was installed on the west side of the highway. From this new manhole/vault, one circuit (three 6” conduits) exited to the south to a new 100’ overhead riser pole. The other two circuits (six, 6” conduits) exited to the north, paralleling Industrial Drive and an existing Port of Houston railway line for 1,400ft. This section required a second man-hole/vault, a box tunnel under an existing industrial plant access driveway and a directional bore under the railway line. Ultimately, one circuit terminated at a riser pole approximately 150ft north of the railway line and the other circuit transitioned to overhead construction at this location. M&S Engineering provided all design, cable pulling plans, field investigations, permitting, construction plans, City of Houston, Harris County and Port of Houston permitting, survey and S.U.E. investigations. The project included extensive utility coordination with telecommunications, natural gas, water, wastewater, storm sewer and industrial pipelines in the area.