requirements contracts for engineering design and related services ...

6. The Consultant shall notify the Transit Authority, Department of Transportation (Bureau of Traffic Operations),
Police Department and Fire Department twenty–four (24) hours prior to the start of the work, in a manner satisfactory to the
Engineer, so that proper arrangements can be implemented for maintaining traffic during the course of the work.
7. TELEVISION INSPECTION AND VIDEOTAPE RECORDING
(a) Operation and movement of the video camera shall be remotely controlled from above the ground and from a
mobile television studio, by a skilled technician.
(b) The technician shall have the capability to adjust the brilliance of the built-in lighting system and be able to change
the focus of the television camera by remote control. The television camera shall be positioned as near as possible to the
spring line of the sewer.
(c) The television camera shall be a radial eye camera. The lens of the camera shall be able to rotate three hundred
sixty (360) degrees, and pan and tilt in any direction, left, right, up and down. Open joints, cracks, infiltration and spurs
shall be viewed directly.
(d) The television camera shall be attached to a rod, cable, or other device that shall be metered to indicate the exact
location of the camera, within the sewer, at all times. Where accessibility to a sewer is limited, and where permitted by the
Consultant, a self-propelled camera may be used.
(e)
An intercom system shall be used to coordinate the movement of the television camera at all times.
(f) Prior to television inspection, water shall be introduced to the upstream manhole to aid in identifying sags in the
sewer.
(g) The view seen by the television camera shall be transmitted to a monitor of not less than fourteen (14) inches in
width. The monitor shall be located inside the mobile television studio.
(h) The mobile television studio shall be large enough to accommodate up to four (4) persons comfortably seated for
the purpose of viewing the monitor while the inspection is in progress. The Consultant’s representative shall have access
to view the television screen at all times.
(i) The equipment in the mobile television studio shall provide for simultaneous recording of each camera view on two
separate videotapes.
(j) Two simultaneous video tape recordings of each view shall be made on standard format VHS tape cassettes and
shall be recorded at the maximum speed at which the recorder can operate. The video recorder(s) shall permit the
recording of both sound and video information. The recording unit(s) shall have the capability of recording both in color or
black and white. The black and white mode shall be used for recording unless the Consultant can demonstrate that an
equal or superior color recording can be made.
(k)
Each videocassette shall have a label affixed with the following information:
Project ID.:
Consultant’s Job No.:
Project Location:
Date Inspection Commenced:
Date Inspection Completed:
Name of Consultant:
(l) The Consultant shall require the subcontractor to provide all electricity needed for all operations, at its own cost
and expense.
(m) The Consultant shall prepare a drawing, herein referred to as the “route sheet”, that shows all sewer manholes and
sewers within and contiguous to the project site in plan view. The manholes shall be numbered consecutively on the route
sheet.
(n) As the television inspection proceeds, the supervisor shall observe and record the location and description of all
defects that are found in the sewers and appurtenances. The locations of defects shall be correlated with the route sheet
and shall include the distances from the centerline of an adjacent manhole to both the starting point and end of each
defect. The record of defects (Sewer Defects Log) shall be prepared in standard Departmental format.
NYC Department of Design and Construction
Infrastructure, October 2012
GR-84