Provide all necessary subsurface investigation within the Project area for the purpose of developing design criteria and
assessing soil conditions relative to environmental and geotechnical concerns for the Project.
a) Determine the need, depth, location and quantity of any borings that shall be sufficient to satisfy foundation,
environmental and regulatory requirements utilizing the results of a plotted topographic survey as a base.
b) Prepare a boring plan to indicate the number and type of borings; contact all applicable agencies/utilities to determine that the
boring plan does not interfere with any existing facilities, such as sewers and other underground elements; present the plan to all
required agencies and obtain agency approvals to proceed with the borings; and upon approval by agencies having jurisdiction.
c) Make all necessary arrangements to retain a qualified contractor for the required borings including but not limited to:
preparation Contract Documents for the provision of the boring services; identify qualified prospective boring bidders; prepare
and solicit at least three responsible bids for the work; review and analyze bid proposals received for the boring services to
determine the adequacy of the equipment, technique and staffing proposed by each bidder; make recommendations related to
the award of the contract for boring work.
d) If approved or requested by the Corporation, award a contract to the lowest responsible bidder with all costs for the boring
procurement to be paid to the Consultant as an allowable additional cost for services that include but are not limited to:
coordinate and supervise the work of the contractor that provides the boring services; provide a qualified inspector to be
present at all times while the borings are taken; and retain the services of a qualified soils laboratory to classify the soil
obtained from all soil samples in accordance with the unified soil classification system.
e) Utilize the results of the subsurface exploration in preparing the design of all applicable phases of the Project work, and
prepare and provide boring logs, technical reports and drawings as may be required to assess the results of the subsurface
exploration and, as necessary or appropriate, integrate them into the design.
f) Upon written approval by the Corporation as an allowable additional cost award a boring contract to lowest responsible
bidder with all costs for the boring procurement to be paid to the Consultant as an allowable additional cost for services that
include but are not limited to: coordination and supervision of the contractor that provides the boring services; a qualified
inspector to be present at all times while the borings are taken; and a qualified soils laboratory to classify the soil obtained from
all soil samples in accordance with the unified soil classification system.
Topographic Survey
The Consultant shall prepare a topographic survey of the Project Area with vertical and horizontal controls through ground
survey methods, referenced to the appropriate NYC Borough with all elevations referenced to established borough
benchmarks. The survey information shall be developed and presented using the following parameters, scope and scale:
a) Horizontal locations shall be taken to the nearest tenth (1/10) of a foot; vertical locations (elevations) shall be taken to the
nearest hundredth (1/100) of a foot or as specified by the Corporation) longitudinally at fifty (50) foot stations, as measured
along the centerline baseline, and at all street intersections, building lines at intersections, front and back edges or ribbon
sidewalk, and at the edge of the property, as appropriate; spot elevations shall be taken at all street surface hardware locations,
steps/platforms, building entrances, first floors, garage floors, back of sidewalk at all entrances, ground elevations at building
entrances, traffic islands, parking aprons, intersections (as required), corner (with crosswalk) sidewalk quadrants,
storm/combined sewer inverts, at points giving the clearance from the roadway to the underside of overhead structures and as
otherwise required for design.
b) Plotted at the scale of 1 inch = 20 feet, unless otherwise directed by Corporation, with topographical contour lines plotted at
intervals of one foot with sufficient spot elevations to accurately describe the terrain, and locating all physical features within the
Project area, or adjacencies, needed to produce a comprehensive design, including, but not limited to, the following
information: Established building line lengths with interior angles, shed legal grades of all streets and legal widths of all
pavements, sidewalks and sidewalk areas; establish actual widths of all pavements, sidewalks and sidewalk areas;
identification of all streets, including paper streets, by name; identification of all plazas, malls and public areas; location, by
station and offset, of all roadways, edges of pavements, headers, curbs, drop curbs, pedestrian ramps, sidewalks, driveways,
distinctive/special sidewalk areas, bus stops, traffic islands and traffic channelization (permanent and temporary), trees
(including caliper and edge distance to existing curb), height of pier, ventilation tower, location of door openings and survey
monuments, with existing curbs, sidewalks and pavements identified by condition and type of materials; location, by station and
offset, and identification of all street hardware including, but not limited, to manhole cover castings, valve box cover castings,
catch basins, inlets, utility chamber covers, gratings and headwall; location, by station and offset, and identification of all
sidewalk hardware including, but not limited, to coal chutes, oil fills, cellar doors, under sidewalk drains, sidewalk elevators,
building sidewalk ventilation gratings, subway ventilation gratings, hydrants (high pressure, low pressure), street lights, traffic
signal poles, parking signs, parking meters, traffic control boxes, traffic controllers, traffic detectors, fire call boxes, police call
boxes, subway entrances and emergency exits, traffic stanchions, structural columns, monuments, newsstand kiosks, sidewalk
retail areas, areaways, decorative fences and railings, steps, walls, stoops, planting areas, and cellar windows at grade and
elevated subway supports and access stairs; location, by station and offset, of all columns and abutments for all grade
separation structures, pedestrian over-passes and vehicular/railroad structures; location, by station and offset, of all street
encroachments including, but not limited, to hedges, fences, grass areas, retaining walls, rock outcrops, steps and stoops;
location, by station and offset, of all surface drainage elements including, but not limited to, swales/ditches, brooks/creeks,