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333 E 91st Street


New York City, NY



Project Highlights:

Geotechnical Engineering Services

Subsurface Exploration

Engineering Analysis

The DeMatteis Organization retained Oweis Engineering Inc. (OEI) to provide geotechnical engineering services for the construction of a new 35 story building on 1st Avenue between 91st and 92nd Streets in Manhattan. OEI’s services included:

  • Data collection and review of existing geologic and geotechnical data.

  • Performed a Subsurface Exploration Program.

  • Conducted a Laboratory Testing Program.

  • Performed engineering analysis for the design and construction of proposed foundations.

  • Prepared a geotechnical engineering report documenting the analysis, foundation design criteria, stability of slopes and excavations, site preparation methods to provide adequate support to structure, seismic parameters, groundwater control, lateral earth pressure and influence of proposed construction on adjacent structures.

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