The New York City Department of Design and Construction (NYCDDC) contracted with the B. Thayer Associates’ Survey team to perform extensive topographic, right-of-way, and utility surveys for various infrastructure projects on an as-needed basis throughout the five boroughs. BTA and its sub-consultants have provided surveys for approximately 34 miles of roadways under this contract.
Our team has also provided surveys of many city-owned facilities, such as NYPD, FDNY & EMS stations. Also public spaces such as libraries, museums and a Department of Sanitation Maintenance and Administration Facility.
Our staff first creates a precise control network throughout the project limits. We use the adjusted network to conduct field measurements. Raw survey data is run through our field to finish routines to generate comprehensive topographic mapping and to guarantee adherence to NYCDDC standards.
Once the base mapping is completed, our licensed land surveyors compile all the recovered boundary evidence in order to determine the location of the right-of-way lines.
Underground utility line locations are incorporated from both record mapping and field evidence. Complex utility and roadway profiles are generated showing basins, pipe runs, first floor elevations, and as-built and legal grades.
All data is provided to the NYCDDC in the latest CAD format.