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Waterfront & Marine

NYCEDC Seaport Coastal Resiliency Project Design Services

South Shoreline of Manhattan, New York

Project Overview

MFS Consulting Engineers & Surveyor, DPC provided professional structural engineering services for the New York City Economic Development Corporation (NYCEDC) Seaport Resiliency Project located in the borough of Manhattan, New York. The project is part of the Lower Manhattan Coastal Resiliency Project, which is a broad City-led strategy to protect lower Manhattan from coastal storm surge and seal level rise for now and into the future. The shoreline between Pier 17 and the Brooklyn Bridge is the lowest lying in the general area, making the Seaport neighborhood particularly vulnerable to sea level rise sooner than other adjacent areas. The project is located along the waterfront with tie-ins to the Brooklyn Bridge-Montgomery Street Coastal Resilience Project in the north and to the south in the vicinity of John, Fulton, and Pearl Streets to provide protection up to approximately EL. +11.0 NAVD88.

South Shoreline of Manhattan, New York

Project Details

MFS was involved in the project design development as it related to the landside structural engineering scope of work. The landside structural design consisted of the proposed above-ground flood barrier systems, including flood walls, flood gates, and just-in-time deployment panels, new retaining walls to support raised grades, modifications to the existing street-level subway entrance stairs and street-level raised subway grates along Fulton Street, new concrete block benches, and other landscaping site structures, including fence/sign footings, walkways and pedestrian ramps, playground equipment, and concrete pads.

MFS’s structural team reviewed and familiarized themselves with all known plans and documentation for the Seaport Project Site area, including, but not limited to, existing site plans, as-built drawings, geotechnical records, property and utility surveys, transit maps and drawings, NYCEDC resiliency guidelines, FEMA Flood Risk Maps, and other documentation generated in connection with the Seaport Climate Resiliency Project. MFS supported the development the Conceptual Designs of the landside flood barrier system alignment starting at the most southwestern intersection of South Street and John Street, then running north along John Street, then east along Front Street, then north along Fulton Street to Water Street, and finally ending east along Pearl Street. MFS worked with the Project Team’s Structural Consultant responsible for the marine/waterfront side scope of work. MFS determined basic structural engineering design criteria and developed three conceptual design schemes in support of the Project Team’s Civil and Landscape Architect Consultants. Additionally, MFS reviewed and commented on the Conceptual cost estimate prepared by the Project Teams’ Cost Estimating Consultant.

MFS further developed the conceptual structural design into Schematic Design (30%) level alternative design solutions where MFS and the Project Team selected a single approach and proceeded to final Schematic Design.

MFS performed all necessary structural design calculations, drawings, and reports to develop the Schematic 30% Design submission for the selected design concept. At the 30% Design level, MFS provided the schematic structural systems with overall dimensioning and preliminary sizes of structural members and foundation systems, a design narrative and summary, technical specifications outlines, and typical foundation and framing details. After completing the 30% Design, MFS obtained NYCEDC approval, including reviewing and addressing NYCEDC comments, reviewing and providing comments on the 30% cost estimate, and attending technical workshops as needed.

After obtaining NYCEDC approval of the Schematic 30% Design, MFS advanced the structural design up to the Preliminary (50%) Design level. At the 50% Design level, MFS showed, identified, and dimensioned structural and foundation systems, showed compliance with code-required structural requirements including dead loads, live loads, impact loads, seismic loads, etc., produced Preliminary 50% Design drawings including foundation and framing plans, sections, details and schedules, and provided a Preliminary Design Report and engineering specifications for all components that were incorporated into the work.

After completing the 50% Design, MFS obtained NYCEDC approval, including reviewing and addressing NYCEDC comments, reviewing and providing comments on the 50% cost estimate, and attending technical workshops as needed.

After obtaining NYCEDC approval of the Preliminary 50% Design, MFS advanced the structural design to Final Design Documents at the 75%, 90%, and 100% design levels. The 75% submission included Contract Documents developed halfway between the approved Preliminary 50% Design Documents and the biddable Contract Documents. The 90% submission consisted of the Contract Documents substantially complete, fully addressing all comments, and lastly, the 100% submission constituted biddable Contract Documents. MFS reviewed and provided input on the final cost estimate prepared by others. Contract Document drawings included foundation and framing plans of the flood barrier alignment, structural sections, details and schedules, and final engineering specifications for all components that were incorporated into the work.

Stats

  • Owner:
    NYCEDC

Services Provided

  • MFS provides professional structural engineering services, working closely with private and public clients and contractors to engineer cost-efficient and sound structural systems, providing design services, building assessments, and structural inspections.