MATERIALS Engineers, Independent TESTING Laboratories, Geotechnical & Environmental CONSULTANTS

Thunderhead Wind Farm

Client: IEA Constructors
Location: Wheeler and Antelope County, NE
Duration: November 2019 – September 2020
Service Provided: An on-site laboratory was setup to process over 4,000 concrete cylinders and 1,300 expoxy grout cubes. Field testing services included cement stabilized access roads, foundation subgrade soils, reinforcing steel, concrete, backfill soil density, and epoxy grout.
Project Description: This project consisted of 108 wind turbines with associated access roads. Two turbine models were used having 2.3 and 2.5 MW power output. The foundations were supported on existing subgrade and rammed aggregate pier improved subgrade. Two to three concrete placements were performed daily ranging from approximately 300 to 400 cy. Backfill of foundations meeting a specified unit weight was required. High strength epoxy was used to grout turbine tower bases.