LNG Vaporization Plant

Connecticut

Stephens Associates Consulting Engineers (SA) structurally designed foundations and equipment supports for new vaporizers and associated equipment for Liquefied Natural Gas (LNG) vaporization at this existing facility.

SA's design included concrete pedestal supports for two new vaporizers, retaining walls, a sub-impoundment for spill containment, a precast concrete elevated spill trench, and foundations for a metal-framed building, heaters, and water/glycol tank.

SA designed the concrete structures to resist severe loading from wind, earthquake, and temperature fluctuations from LNG exposure. The design was required to conform to strict Federal Energy Regulatory Commission (FERC) criteria, and SA responded to questions from FERC- and peer-review during design and permitting.

During construction, SA is coordinating Code-required Special Inspections as the Registered Design Professional for structural components we designed, responding to structural-related submittals and Requests for Information (RFIs), and periodically performing on-site Special Inspections of soil subgrades prior to foundation construction.