Enclosed Urban Substation for a Large-Scale Mixed-Use Development
Owner's representation across the full project lifecycle for a high-density urban substation serving a 30,000-seat stadium, retail, office, and hotel — built on a 5-acre contaminated brownfield site with no margin for error.
CHALLENGE
Open-land substation projects are complex. Urban ones are a different category entirely. On a 5-acre brownfield parcel surrounded by an active mixed-use development, every phase of this project had to account for constrained laydown areas, coordinated access with adjacent construction trades, contaminated soil management, and the demands of an enclosed structural design — all while maintaining the schedule required to energize a 30,000-seat stadium.
URBAN COMPLEXITY FACTORS
Enclosed Substation Design
Unlike open-air facilities, an enclosed urban substation requires structural walls, interior blast protection, and coordinated trades — compressing the construction sequence significantly.
Tight Site Constraints
A 5-acre footprint leaves little room for staging, crane operations, or contractor coordination — particularly during heavy lift events for 300,000-lb wall panels.
Multi-Trade Coordination
Substation construction ran concurrently with stadium and mixed-use development activity, requiring continuous sequencing alignment across multiple contractors and owners.
Contaminated Soils on a Constrained Parcel
Environmental remediation in a dense urban setting limits disposal options and staging flexibility — raising the stakes for schedule and compliance management.
OUR ROLE
Triple H served as owner's representative from site preparation through interior completion — providing independent oversight, contractor accountability, and day-to-day decision support across a technically demanding and spatially constrained scope.
Site Remediation & Preparation: Oversaw environmental remediation of contaminated soils across the 5-acre parcel and management of imported structural fill to establish the substation pad, ensuring compliance with remediation specifications and compaction requirements.
Deep Foundation Program: Provided owner-side oversight of the installation of 360 auger cast piles, monitoring contractor performance, verifying placement tolerances, and reviewing documentation throughout the foundation program.
Grade Beam & Structural Wall Panels: Managed contractor execution of the grade beam pour and the forming, casting, and installation of 30+ structural concrete wall panels — each 50 feet tall and weighing approximately 300,000 lbs — including oversight of engineered lift plans and critical-path placement sequencing within a constrained urban footprint.
Distribution Duct Bank: Coordinated contractor delivery of a distribution duct bank serving 12 feeder locations, providing routing and quality oversight throughout installation.
Interior Substation Scope: Oversaw interior construction including a 50-foot blast wall and three transformer pits — safety-critical elements requiring close coordination between structural, civil, and utility contractors within the enclosed facility.
OWNER'S REP VALUE ON THIS PROJECT
In a dense urban environment with concurrent development activity, an effective owner's representative is the connective tissue between contractors, designers, and the client. Triple H maintained schedule integrity and quality standards across every phase — from brownfield remediation through the final interior fit-out of a structurally complex enclosed facility.
OUTCOME
A fully enclosed, operational urban substation delivered on a 5-acre contaminated site — with continuous owner-side oversight protecting quality, safety, and schedule from ground remediation through deep foundations, structural concrete, and interior utility infrastructure, in one of South Florida's most logistically demanding construction environments.