Connecting TECO’s Underground Utility Distribution Systems
Stanley Consultants provided the conceptual planning, detailed engineering design, and construction coordination services necessary to connect the underground utility distribution systems of the two facilities. A distance of 2,500 feet separated TECO's South Main plant from the Central plant.
Utility systems included a large electrical duct bank, 48-inch chilled water (supply and return), 12-inch steam (250 psi, 406 degrees F), 6-inch pumped condensate, 2-inch trapped condensate, and an 8-inch subsurface drainage line.
Construction drawings were provided depicting all installation requirements for the direct-buried underground piping, chilled water line "hot tap" procedure, directional boring under a major city thoroughfare, concrete valve vaults, and details describing the integration of the new piping into the existing piping systems. Several utility laterals to adjacent building were also included with this large utility project.
Coordination with multiple adjacent construction projects and property owners was required. The City of Houston required multiple reviews and permits for the directional boring work which took place over 30 feet below the existing city road and required large jacking and receiving excavations for the boring equipment.