requirements contracts for engineering design and related services ...

In order to ensure that the electronic CADD files submitted are deemed usable by DDC’s design group and/or
DDC’s Consultant, the CADD files must contain 3-D intelligence for all major drawing elements so that a 3-D surface
model can be created.
Following is a list of some of the major drawing features which may be encountered during plan preparation that
must contain 3-D intelligence and how they are to be depicted in the electronic CADD file submittals:
1. All curb lines (top & bottom), edge of pavement lines (concrete, asphalt, stone, etc.), edge of sidewalk lines and
roadway centerlines shall be created as a 3-D polyline/breakline.
2. All Utility and Highway profiles must be in 3-D intelligence and submitted in a format which is usable with any 3-D
design package delivered in Autodesk DWG format.
3. All major grade changes depicted in within the drawing file shall be created using 3-D polylines/breaklines.
Examples of major break changes may include sloping embankments, driveways, building steps and entrances,
constructed walls, on-site drainage swales, overhead railway structures, bridge abutments, etc.
4. All standard DDC symbols utilized in the creation of the working drawing shall be inserted at the field located
elevation and remain as an intelligent block (do not explode the inserted blocks into separate entities).
5. All 3-D polylines/breaklines created within the electronic CADD file must be one continuous line segment.
6. When requested, all contour information depicted within the supplied CADD file must retain its original 3-D
intelligence and be usable with any 3-D design package delivered in Autodesk DWG format.
7. All electronic design files submitted to the NYCDDC during the Preliminary and Final submissions MUST be in the
Carlson File Format to ensure a seamless transition of data between Consultant and Client Agency. The files
required to be submitted are; Field Coordination Data (.crd), Existing Surface Data (.tin), Profile Data (.pro), and
Alignment Data (.aln).
P. DOCUMENTS TO BE DELIVERED
The following survey materials shall be delivered to the Commissioner on completion of survey:
1. All computations (Raw data files and all electronic files supporting the survey including 3-D files) and all original field
notes - shall be permanently bound, sharp, clear, crisp, clean and “fixed”, dated, suitably indexed and in a format as
approved by the Commissioner, signed and sealed with original seal and signature by a New York State Licensed
Land Surveyor.
2. All computations (Raw data files and all electronic files supporting the survey) shall be submitted on CD ROM.
3. All original notes and all utility drawings, plans and plates, including but not limited to the following:
a. All As-Built Sewer Information, including As-Built `structural details of chambers.
b. All utility plates (electric, telephone, gas and fire, cable, etc. from affected utility).
c. All NYC Transit Authority Information (including Conrail, Amtrak, Metro-North and LIRR), including electric
ducts and structures as available from Transit Authority within 25’ beyond the project limits.
d. All Water Main Information, including schematic distribution plans [DDM(s)], tap cards, and Field cards from
DEP.
e. Section and Final Maps obtained from Borough President’s Topographical Section.
f. All relative information from NY State DOT Highways (as-built drawings etc.).
g. Tax maps, Alteration maps, monument worksheets, Final Sections etc.
4. Where the Consultant employs electronic surveying methods he/she shall provide a description of computer
programs employed, the equipment used in connection with the survey, the CADD drawing and survey data files,
and the survey computations - all in a format and medium to be pre-approved by the Commissioner.
5. The Consultant shall identify and provide the Commissioner with original working copies of all survey data
source/reference material.
6. When using aerial photography for the survey, the Consultant must supply DDC with the actual photo of the color
and/or black and white photo. If digital photo, it can be delivered in a translatable file JPEG, BMP etc. In addition the
Consultant shall deliver the electronic file of the planimetric information which was based on the photo (translatable
to AutoCAD format).
NYC Department of Design and Construction
Infrastructure, October 2012
GR-22