requirements contracts for engineering design and related services ...

During the construction stages of the project the Consultant will be required to inspect and approve shop drawings,
material samples and the landscaping work being performed by the Contractor to ensure that the landscaping materials
and the finished work meet the quality and standards specified.
The Consultant will be required to visit the site at various stages of the landscaping work to inspect the landscaping being
performed, and shall provide such instructions and guidance to the Contractor as is necessary and appropriate to ensure
that the required quality of the landscaping work is achieved.
The Commissioner will transmit the necessary shop drawings to the Consultant for review and approval and will, in
consultation with the Consultant, advise the Consultant of the need and schedule for inspecting various phases of the
landscaping work as the work progresses.
4.34 DESIGN OF MODIFICATIONS TO SUBWAY VENTILATORS
1. Under this task the Consultant shall research and study the details of existing subway structures and facilities,
develop preliminary and final designs, preliminary and final cost estimates, and specifications for modification of subway
ventilators as needed to implement street reconstruction proposals.
2. PRELIMINARY DESIGN
(a) The Consultant shall utilize any topographic and utility data provided to the extent necessary for the proper
completion of this task.
(b) The Consultant shall supplement any survey and utility data provided by conducting additional research of Transit
Authority, and public and private utilities’ records; and by conducting additional field surveys to ensure that there is
adequate and accurate data to identify possible design alternatives and to fully develop the design details.
(c) The Consultant shall develop and provide the Commissioner with an estimate of the number of days and locations
at which it intends to have personnel conducting surveys within the subway structure. The Consultant shall coordinate,
with the Department, the development of a Transit Authority Force Account to allow the City to reimburse the Transit
Authority for the cost of its personnel assigned to facilitate the Consultant’s field surveys of the subway structure and its
facilities.
(d) The Consultant shall identify design alternatives for modifying the subway ventilator(s) to allow for implementation of
the street reconstruction proposals. Proposed modifications may include, but not be limited to, relocation of ventilators,
and modification of the subway structure and facilities.
(e) The Consultant shall develop design alternatives in full coordination with the Transit Authority. All modifications to
the subway structure and Transit Authority facilities are to be designed in accordance with design criteria stipulated by the
Transit Authority, or recommended by the Consultant and accepted by the Transit Authority. Design details shall conform
to the Transit Authority’s standards.
(f) The Consultant shall prepare preliminary drawings for the design alternatives identified. The preliminary drawings
shall include plans, profiles and cross sections drawn to scale; shall indicate overall dimensions of existing structural
elements that are to be modified and of the new construction proposed including hardware and equipment that must be
removed and/or installed.
(g) The Consultant shall make a preliminary assessment of the impact that each design alternative will have on existing
sewers, water mains, and all other City owned facilities, identify and recommend measures that can be implemented to
mitigate those impacts, and prepare preliminary drawings for the mitigation measures recommended.
(h) The Consultant shall submit the preliminary drawings for the design alternatives, including details of proposed City
owned utilities impact mitigation measures, to all private utility companies that own and operate facilities within the project
limits. The Consultant shall ask each utility company to make a preliminary assessment of the impact of each design
alternative on its facilities and to identify private utilities impact mitigation proposals for each alternative.
(i) The Consultant shall develop preliminary estimates of the cost of implementing each design alternative considered
including the cost of measures proposed to mitigate City owned utility impacts.
(j) The Consultant shall identify, on the Preliminary Drawings, the existing utilities that may be impacted and shall
submit the preliminary drawings and preliminary cost estimates for the design alternatives to the Commissioner along with
recommendations, including justification, for selection of a preferred alternative(s). The Consultant shall meet with the
Commissioner and present the design alternatives, recommendations and justifications.
NYC Department of Design and Construction
Infrastructure, October 2012
GR-77