Project Owner
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Client
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Key Elements
  • Topographic Survey
  • Sanitary & Storm Sewer Investigation
  • Utility Markout and Mapping
  • sUAS High-Resolution Orthoimagery
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Project Duration
  • Ongoing
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Overview

The fifth busiest toll road in the United States, the New York Thruway system connects the major cities of New York State with over 490 miles of publicly maintained roads. The NYS Thruway is crucial infrastructure for residents, tourism, and commercialism in the State. In 2018, NYS issued a proposal to re-imagine and redevelop 27 NYS Thruway Service Areas. This proposal included the design, construction, financing, operations, and maintenance of the Authority’s 27 Service Areas. Four locations were set for rehabilitation, with the remaining 24 marked for complete demolition and rebuild. As part of the design and construction effort for this project, GdB Geospatial was contracted by AECOM on behalf of the Tishman Construction/LeChase construction Joint Venture Design-Build team to provide various Land Surveying, Geospatial, and Subsurface Utility Locating and Mapping for each of the 27 sites.

GdB Value

GdB field crews performed detailed topographic and utility surveys for each site, approximately 1.5 to 2 acres in size.  All existing structures, pavement edges, sidewalks, curbing, ADA improvements, fences, gates, retaining walls, signage, lighting and visable surface hardware for utilities, and any other planimetric features were located. Ground elevations were captured at a maximum 50' interval to produce 1' ground contours.  Building specific information such as finished floor elevations was captured as well.  Utility mark-out and locating was performed according to ASCE Quality Level “B” standards. Utilizing Ground Penetrating Radar (GPR) and Electromagnetic Induction techniques, GdB field technicians designated and located all existing underground utilities (gas, power, water, fiber optic, communications, site lighting, etc.) that supported the NYSTA travel plazas, the adjoining gas stations, and areas needed for future truck fueling stations and electric vehicle charging stations. Closed Caption TV was used to video and document the conditions of existing storm and sanitary sewers exiting the buildings. A small unmanned aircraft system (drone) was used to capture high-definition site photography, georeferenced with site established survey control.