Remix for free
Highline Commerce Tower
Client
Marcus Vance
Budget
$16 Million
Completion Date
June 2026
Location
New York, USA
Project Size
250,000 sq. ft.
Category
Building, Tower
Subterranean multimodal transit hub delivered adjacent to sensitive historic architecture.
Construction of a major subterranean multimodal transit interchange directly beneath an active downtown commercial corridor. The project required deep foundation excavation extending 68 feet below grade within 12 feet of adjacent century-old historical masonry structures. Maintaining continuous geotechnical stabilization and zero disruption to surface vehicular and pedestrian traffic were mandatory contractual conditions.
Our geotechnical teams designed a comprehensive support-of-excavation (SOE) program tailored to prevent ground movement while structural crews installed heavy reinforced cast-in-place retaining systems.
Precision tangent secant piling paired with real-time geotechnical telemetry.
Engineered a continuous tangent secant pile perimeter retention wall combined with multi-stage high-pressure jet grouting to create an impermeable cutoff barrier against groundwater ingress. Automated vibrating-wire piezometers, inclinometers, and robotic total stations monitored soil displacement continuously, streaming telemetry into structural finite-element models to dynamically calibrate tieback pre-stress levels.
Below-grade underpinning operations utilized micro-piles drilled through existing basement footings to transfer structural loads to solid bedrock before open-cut excavation reached full depth.
Zero structural deflection and early handover on deep foundation civil works.
The excavation successfully reached design depth without a single recordable settlement or lateral deflection event on surrounding historical buildings. Structural concrete foundation pours commenced ahead of the baseline critical path schedule, keeping civil utility relocations fully synchronized with regional transport authority milestones.
1,000%
Concrete certified
1,000in
Maximum deflection
1,000$
Direct cost savings
Elena Rostova
VP of Logistics
