In 2003, plans began for New Hampshire's first utility-scale wind farm in Lempster. The wind farm went online in 2008 and has 12 wind turbines with a combined capacity of 24 megawatts and an annual production of more than 70,000 megawatt hours. The project provides electricity to the region through the Public Service of New Hampshire grid.
Terracon was hired to develop and complete a geotechnical investigation. 27 test borings were advanced at proposed locations of wind turbines, a meteorology tower, operation and maintenance buildings, and along proposed roadways, utilizing all-terrain vehicle drill rigs.
Foundation design parameters for the wind turbines were provided for both soil and bedrock, and recommendations were made for mat foundations and rock anchors. Seismic criteria and lateral loading design recommendations were also addressed in the geotechnical report.
Lempster Mountain, NH
Terracon's Manchester office is located in the heart of New Hampshire's "Queen City," in a historic shoe factory building situated along the Merrimack River. The Manchester office was originally founded in 1986 by Gary Jaworski, Ph.D., P.E., as Jaworski Geotech, Inc. (JGI). JGI was purchased by Terracon in 2007, becoming part of the national, award-winning, employee-owned consulting firm, which continues to provide reliable service to its Northeast regional clients.
Our primary services, offered to clients in both the public and private sectors, include environmental,…