Black Oak Wind Farm

Black Oak Wind Farm, LLC, plans to construct seven 2.3 megawatt wind turbines built by General Electric, in total producing 16.1 megawatts, on approximately 1,000 acres of land. All electricity produced on the farm, which is enough to power about 5,000 local households, have been purchased by Cornell.

Tectonic provided geotechnical and environmental support services for the project consisting of the seven wind turbines and associated collector systems, a collection station, a substation and access roads. The investigation identified the engineering properties of the site soils and bedrock necessary for the design of the turbine foundations, electrical grounding and buried electrical transmission lines. These services included the preparation of the geotechnical components of the geology, soils and topography section and the groundwater components of the water resources section of the Draft Environmental Impact Statement (DEIS).

Test borings, Multi-Analysis of Surface Wave (MASW) testing, thermal resistivity testing, electrical resistivity surveys and laboratory soil testing were completed and a report with recommendations for the design and construction of the turbine and substation foundations was prepared.

Tectonic also performed a Phase 1 Environmental Site Assessment (ESA) for each of the seven wind turbine parcels spread geographically over the site and also conducted limited Phase II soil sampling to expedite screening for past agricultural practices to advance the project development schedule.

Mohave Solar Installation Design

Tectonic designed the steel structure and concrete foundation for a 24’ by 80’ by 16’ tall elevated canopy to support a photovoltaic solar panel array on the building. Additionally, Tectonic designed the building structure and foundation to house the batteries for the solar panel array. Geotechnical investigations and as-built drawing preparation are also being performed in order to obtain the necessary information to obtain a building permit for the site.

Multi-Disciplinary Services

Tectonic has a long standing relationship with Central Hudson having performed multi-disciplined services throughout the region over the last 16 years. As part of their Transmission and Substation electrical systems upgrades and improvements, Tectonic has provided the following services:

  • Third party field inspection services, for performance of gas & electric utility facility installation throughout the lower Hudson Valley region for contractors.
  • Civil and structural engineering services for the design of caisson foundations to support transmission lines and utility poles at the Catskill Substation.
  • Subsurface investigation and geotechnical evaluation for the proposed upgrades to the Central Hudson Gas & Electric (CHG&E), 11-mile, 69 kV SB transmission line located between Kingston and Saugerties, Ulster County, New York, and the 12-mile, 69 kV H transmission line located in Catskill, Greene County, New York.
  • Structural engineering services for the design of caisson foundations to support 2 transmission towers on the NW transmission line.
  • Geotechnical investigation and prepared a report describing findings and recommendations for the construction of two (2) steel transmission poles to replace existing wood pole structures on the WM line in Walden, NY.
  • Structural analysis and field investigation of an existing elevated concrete slab and the brick bearing walls supporting the slab within a historic power station building at the Montgomery Street Substation.

Port Jervis Substation Design

Under several contracts with Orange & Rockland Utilities, Inc., Tectonic performed design services for the replacement of a transmission/distribution substation spread across two sites. As part of the Substation replacement, Tectonic performed engineering services for pedestrian improvements, earthwork analyses, pavement replacement, and maintenance and protection of traffic (MPT) planning. Additionally, Tectonic provided coordination of drainage and retaining walls, site planning oversight, cost estimating, and engineering support.

Term Agreements

Tectonic has been working with Con Ed through various Term Agreements over the last 15 years. As part of their Transmission and Substation electrical systems upgrades and improvements, Tectonic has provided the following services:

  • Structural engineering services for more than sixty (60) of Con Edison’s transmission towers.
  • Geotechnical and Environmental engineering. Geotechnical and environmental services including: performance of subsurface investigations, laboratory testing, geotechnical and environmental analyses, report preparation and geotechnical instrumentation and monitoring services.
  • Controlled inspection and materials testing services for soils, concrete, masonry, asphalt, and structural steel materials, preparation of inspection reports and performance of on-site investigations.
  • Land and property surveys, title searches, ROW and easement surveys, topographic surveys, hydrographic surveys, including soundings, construction and quantity surveys, transmission surveys including subsurface or overhead electric, gas and steam lines, and route feasibility surveys and studies.

Danskammer & Roseton Power Plant Station Modifications

Two power plants located adjacent to each other on the west bank of the Hudson River in Newburgh, NY distribute power throughout the Hudson Valley. The 500 megawatt, 4-unit, coal-fired Danskammer Power Station and the 1200 megawatt, 2-unit, gas and oil-fired Roseton Power Station required several repairs. Under a 7-year term agreement, Tectonic provided on-call consulting engineering services for a multitude of task assignments. Tectonic performed structural analysis and design, structural inspections, load capacity evaluations, design of repairs to address existing conditions, accommodate new operational needs, and design of modifications and additions to various plant infrastructure.

Solar System Installation Design New York City

To provide clean renewable energy while reducing overall energy costs for various residential and commercial buildings throughout the five boroughs of NYC, solar photovoltaic system set ups were installed ranging in energy output from 50 KW up to 150 KW. Tectonic provided professional engineering design services for over twenty installations including framing layout, structural analysis and design of the solar mounting system, drawing preparation and building design.

Solar Rooftop Installation Design at Cornell Bloomberg Building Cornell Tech’s Roosevelt Island Campus Construction

This project included the construction of a new Cornell Tech campus including two million square feet of state-of-the-art buildings, over two acres of open space that will become home to over 2,000 graduate students and hundreds of faculty. The construction included the installation of solar panels on the Bloomberg Center and Bridge building. When completed, the 12-acre campus will be known as one of the most environmentally friendly and energy efficient campuses worldwide. Tectonic provided engineering services for the installation of a rooftop solar system at the Bloomberg Center Building and Bridge Building.

Tectonic performed structural analysis and design of the proposed solar mounting steel support system. The support system for Bloomberg was composed of steel members and Unirac rails and the Bridge building was composed of Unirac rails at an 8-degree tilt. The design included a design to span the large 25’ and 30’ spans as required to support the PV panels. Tectonic also drafted structural design drawings and was involved with the permitting process with the NYC DOB.

Transmission Line Survey

Tectonic worked with Burns & McDonnell to provide surveying services on Jersey Central Power & Light’s 230-KV transmission line route that runs approximately 10 miles long, beginning at the NJ Transit Red Bank Substation and ending at the NJ Transit Aberdeen Substation. Tectonic performed a survey for the entire width of the NJ Transit Authority right-of-way. Additional services included:

  • Researching the public right-of-way along the transmission line route and incorporated proposed changes due to on-going local construction projects.
  • Surveying and planimetric mapping services
  • Location of all features within the Transit Authority’s right-of-ways
  • Layout of new power poles and the location of utilities and other potential interferences near the proposed power lines
  • Control for aerial mapping and ground truthing for aerial LiDAR

Tectonic’s survey crew performed these services along this active commuter rail line and adhered to all train schedules while working near the tracks under the direction of railroad safety personnel.